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Journal articles on the topic 'Circular industrial ecosystem'
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1
Tolstykh, Tatyana, Nadezhda Shmeleva, and Leyla Gamidullaeva. "Evaluation of Circular and Integration Potentials of Innovation Ecosystems for Industrial Sustainability." Sustainability 12, no. 11 (June 3, 2020): 4574. http://dx.doi.org/10.3390/su12114574.
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The aim of this paper is to address the gap in the academic literature towards the development of methodological approaches to the industrial ecosystem potential assessment. This study is focused on the industrial ecosystems formed on the basis of a symbiotic model and implementing the principles of circularity. The article systematizes the problem of using circular and ecosystem approaches in industrial development. A contribution to the literature was achieved by providing a systemic perspective on the sustainable industrial process. In this paper, we develop the methodological foundations to improve the understanding of circular and integration processes’ influence on the industrial ecosystem potential. For a relevant analysis of industrial ecosystem potential, the existing patterns of system functioning were taken into account, including entropy equilibrium and Harrington model. We illustrate our assumptions with an empirical case study of two different industrial ecosystems, Kalundborg Symbiosis and Baltic Industrial Symbiosis, with an assessment of their circular and integration potentials. The results highlight that the potential of Kalundborg Symbiosis in the field of circularity is realized quite productively, but not in full. The holistic knowledge of circularity process provides new information that supports academics, policymakers, government, and individuals with a more appropriate understanding of the conditions that help to eliminate the environmental problems faced in society, helping to achieve the country’s sustainable development goals.
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Gamidullaeva, Leyla, Nadezhda Shmeleva, Tatyana Tolstykh, and Alexey Shmatko. "An Assessment Approach to Circular Business Models within an Industrial Ecosystem for Sustainable Territorial Development." Sustainability 14, no. 2 (January 9, 2022): 704. http://dx.doi.org/10.3390/su14020704.
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In this work, the authors have made an attempt to develop a methodological approach to substantiate the socio-economic efficiency of enterprise performance within an industrial ecosystem in the context of a circular economy. The proposed approach has been verified via a case study of the industrial ecosystem in Novokuznetsk city. Based on the calculations, it has been evidenced that the creation of an industrial ecosystem in the region where the city is located would eliminate area sources of pollution and improve the quality of life of the population, which would advance regional sustainable development and strengthen territorial attractiveness for citizens. Thus, having used the proposed methodology, the prospects for the implementation of circular business models by enterprises in order to increase the efficiency of resource use and balanced and sustainable economic development of a territory have been substantiated. The transition to a circular economy can support the creation of favorable environmental conditions and increase the local community resilience, well-being, and quality of life.
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Aguiñaga, Eduardo. "Industrial synergies from “hidden structures”of knowledge. Towards the foundation of industrial ecosystems." Teuken Bidikay - Revista Latinoamericana de Investigación en Organizaciones, Ambiente y Sociedad 11, no. 16 (June 2020): 91–110. http://dx.doi.org/10.33571/teuken.v11n16a4.
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Industrial strategies based on industrial ecology and circular economy have populated the current industrial landscape. However, these approaches focusing on the creation of symbiotic relationship among industries have beenrelatively insufficiently researched. Although economically and environmentally beneficial, the process of their emergence and development remains unclear. This conceptual research advances the potential role of knowledge in the creation of symbiotic linkages through a qualitative theoretical literature research. The result is a conceptual framework combining different theoretical streams. I conclude that by using absorptive capacity constructs coupled with the principles of industrial ecosystem framed under social network analysis, the genesis of industrial ecosystem can be unearthed.
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Uusikartano, Jarmo, Hannele Väyrynen, and Leena Aarikka-Stenroos. "Public Agency in Changing Industrial Circular Economy Ecosystems: Roles, Modes and Structures." Sustainability 12, no. 23 (November 30, 2020): 10015. http://dx.doi.org/10.3390/su122310015.
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Value creation in the circular economy (CE) is a result of co-creation. In the industrial context, the theme of collaboration has been studied extensively on a company-to-company basis, but related public agency remains unexplored. Still, circular actions happen in societal contexts where public actors and logics are constantly present, enabling the change toward more sustainable actions. For systematic discovery of the topic, the following research questions are considered: (a) What roles can a public actor have in an industrial CE ecosystem? (b) What are the relationship modes a public actor can have? (c) In what kind of actor structures may the roles and modes occur? The study relies on two multiple case studies in the international (Study 1) and Finnish eco-industrial parks (Study 2) contexts. The results are based on qualitative content analysis conducted with both primary and secondary data. As a result, six distinct roles—operator, organizer, financer, supporter, policymaker, and regulator—and two modes—facilitative and dirigiste—for public agency in industrial CE ecosystems were identified. The roles depict the concrete means used by public actors whereas the modes depict the characteristics of these actions. Finally, exemplar organization models for the recognized roles and modes in industrial CE ecosystems were examined. The study provides insights into how public actors can contribute to sustainability transitions among their territories and helps practitioners to better understand the premises for public–private interaction.
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Wegner-Kozlova, Ekaterina, and Olga Guman. "Theoretical and methodological aspects of the eco-industrial space development." Journal of New Economy 21, no. 4 (January 12, 2021): 28–44. http://dx.doi.org/10.29141/2658-5081-2020-21-4-2.
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Contemporary society is challenged by the issue of meeting seemingly contradictory needs: achieving economic well-being and ensuring environmental security. On the one hand, rising levels of environmental pollution increasingly threaten systems of life support. On the other hand, economic difficulties cause the growing financial instability. Accordingly, there is a need to move towards a more sustainable environmental and economic system, which requires additional research in this field. The paper focuses on the circular economy as a tool for creating the eco-industrial space to attain sustainable development goals based on the principles of market organisation and long-standing social and economic relations. Methodologically, the research relies on the theory of circular economy and the theory of social space. Research methods include deduction and induction, analysis and synthesis, statistical, comparative, causal, and factor analysis, historical method, which allows taking in account historical, social and cultural peculiarities of the economy, as well as other general theoretical methods. As a result of the research, the authors (1) identify eco-industrial subspace within the social space, which enables clarifying the specifics of the interaction between actors of the social space interested in meeting the needs of both economic development and ecosystem sustainability; (2) develop a system for assessing the circular economy from the viewpoint of eco-industrial interaction. The scientific value of the research findings consists in elaborating on the ecological aspect of industrial regions’ functioning. The circular economy can potentially contribute to the energy efficiency, reduce environmental pollution, and create efficient ways of producing and consuming. The suggested system for assessing the circular economy allows detecting the dynamics of the negative pressure on the ecosystem, which enables the government authorities to purposefully green the industrial development.
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Amosha, Oleksandr, Danylo Cherevatskyi, Oleksandr Lyakh, Myroslava Soldak, and Yuliya Zaloznova. "Canvas model of the mining regions’ industrial ecosystem based on a circular economy." E3S Web of Conferences 255 (2021): 01001. http://dx.doi.org/10.1051/e3sconf/202125501001.
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In order to elaborate the concept of an industrial ecosystem for circular economy for old industrial coal mining regions in Ukraine, we apply Corrine Beaumont's Lean Tribe Canvas model. The concept is based on combination of several approaches, including smart shrinking, urban mines, smart specialisation. The main idea of this concept is to organize an integrated industrial ecosystem for processing of accumulated waste of coal mining and enrichment for decades using innovative technologies for retrieving energy and other products during waste processing, as well as restructuring abandoned housing and unused industrial infrastructure. This should slow down decline of mining settlements, allow to reducing effects of anthropogenic impact on the environment in these regions, as well as mitigate social tension in the places where closed coal mines and related businesses were located. The mining town of Bílytske in Donetsk oblast was chosen as an example to assess technical, social and economic feasibility of a project based on the stated concept.
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Soldak, Мyroslava. "Industrial ecosystem and revitalization of brownfields." Economy of Industry 3, no. 95 (September 15, 2021): 70–101. http://dx.doi.org/10.15407/econindustry2021.03.070.
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The creation of climate-neutral industrial ecosystems based on digital leadership determines the movement of advanced countries towards competitiveness on the global stage. Industrial ecosystems of most regions of Ukraine are characterized by a low technological level of key industries and lack of organizational routines that can ensure their transition to a higher technological and resource-efficient level. The problem of forming a modern policy in the field of revitalization of abandoned areas of former industrial use (brownfields), in particular in the field of industrial waste processing, needs an urgent solution. The article is aimed at highlighting the theoretical foundations and practical aspects of creating a new industrial path through the revitalization of brownfields in underdeveloped industrial ecosystems on the example of old industrial mining regions. The paper proposes the use of a bricolage approach to create a new path of development of old industrial mining regions. This approach focuses not on the breakthrough development of the new industry, which is almost impossible in the conditions of insufficient development of industrial ecosystems, but on the gradual process of strategic cooperation of many participants (local and non-local enterprises, research institutes, local authorities, community, national and regional authorities, other stakeholders), coordination and pooling of resources at different levels, which will eventually have to evolve together, thus leading to a favorable institutional environment for the new industry. The establishment of an enterprises for the processing of coal preparation within the framework of the brownfield revitalization project is a kind of a kludge, the temporary adaptation of the community to the complex socio-economic and environmental situation, which is a consequence of the cessation of intensive coal mining, which will make it possible to create new routines of business behavior of institutions and citizens, the best of which in the process of evolutionary selection will be able to adapt to the new challenges of global technological transformations in industry and ecology. The practical implementation of the given approach is primarily represented in the creation of special institutions that are alternatives to the institutional traps of industrial development on the principles of the circular economy and relate to the introduction of more strict measures when implementing European waste management standards in national legislation and additional taxes that force enterprises to recycle waste; emergence of special enterprises (scavengers and decomposers) that use new effective disposal measures to restore and further use brownfields; creation of special community development corporations that promote economic development and environmental sustainability of the territory and ensure broad community participation in the creation of initiatives and decision-making; use of opportunities for Ukrainian integration in the field of innovation, science and education under the Association Agreement signed with the European Union in order to make effective decisions on the revitalization of brownfields.
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de Langen, Peter W., Henrik Sornn-Friese, and James Hallworth. "The Role of Port Development Companies in Transitioning the Port Business Ecosystem; The Case of Port of Amsterdam’s Circular Activities." Sustainability 12, no. 11 (May 27, 2020): 4397. http://dx.doi.org/10.3390/su12114397.
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There is a gradual but clear transition towards a circular economy (CE) that will potentially have significant impacts on ports, both in their function as transport nodes and as locations for logistics and manufacturing activities. A rough appraisal of new investments in circular manufacturing activities in ports in Europe drawn from organizational reports and official webpages illustrates the (slow) development of circular activities in ports. This paper is to our knowledge the first paper which deals with the implications of CE for the business model of the port development company. We assess if and how the circularity transition affects the role and business model of port authorities as developers of port clusters. We outline a framework for analyzing the consequences of CE on the business model of the port authority. We then apply this framework to get a detailed understanding of the emerging CE ecosystem in the Port of Amsterdam, which is clearly a frontrunner in the transition, and the role of the government-owned Port of Amsterdam port development company (PoA) in developing this ecosystem. In Amsterdam, a CE ‘business ecosystem’ has emerged and continues to evolve with three types of synergies between the companies in this ecosystem: logistics infrastructure and services synergies, input–output synergies and industrial ecology synergies. We find that the spatial scale of the CE value chains in the port varies between segments and that they are generally less international than ‘linear’ value chains. The development of CE activities occupies a central place in PoA’s strategy, and PoA assumes new and active roles in advancing the circular business ecosystem, most notably through developing industrial ecology synergies and nurturing and attracting new, innovative CE companies. Finally, the circularity transition leads to changes in PoA’s business model, with an increasing focus on new services that create synergies, and a decreasing importance of the share of port dues in the total revenue mix.
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Konietzko, Jan, Nancy Bocken, and Erik Jan Hultink. "Circular ecosystem innovation: An initial set of principles." Journal of Cleaner Production 253 (April 2020): 119942. http://dx.doi.org/10.1016/j.jclepro.2019.119942.
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Walter Colombo, Armando, Stamatis Karnouskos, and Christoph Hanisch. "Engineering human-focused Industrial Cyber-Physical Systems in Industry 4.0 context." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 379, no. 2207 (August 16, 2021): 20200366. http://dx.doi.org/10.1098/rsta.2020.0366.
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The world is increasingly interconnected, and this can also be seen in industry, where an ecosystem of digitalized assets, and humans with appropriate digital interfaces, constantly interact with each other. Digital transformation efforts in the industry rely on Industrial Cyber-Physical Systems that are driven by service-based cooperation among humans and digitalized industrial assets. This implies a radical paradigm change in their engineering and operation, which is focused on the symbiosis of digitalized assets and humans that cohabit a collaboration-driven industrial ecosystem. This work discusses how a digital transformation can effectively be achieved in an industrial ecosystem via a digitalization process performed along the three dimensions of the Reference Architecture Model for Industry 4.0, facilitated by the specification, development and implementation of an Asset Administration Shell. The discussion focus is put on humans and how the digitally transformed industrial environments empower her/his capabilities and interactions. It is also critically pointed out how one should go beyond technology and consider additional aspects. Therefore, it is argued that human-centred efforts in Industry 4.0 (I4.0) should be seen in the larger context of sustainability and circular economy in order to properly consider the interplay of the involved socio-technical dimensions. This article is part of the theme issue ‘Towards symbiotic autonomous systems’.
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Parida, Vinit, Thommie Burström, Ivanka Visnjic, and Joakim Wincent. "Orchestrating industrial ecosystem in circular economy: A two-stage transformation model for large manufacturing companies." Journal of Business Research 101 (August 2019): 715–25. http://dx.doi.org/10.1016/j.jbusres.2019.01.006.
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Bilgin, Adem, and Günay Erpul. "Redefining Water Treatment: Identification of WWTPs as an Earth System Problem and Circular Economic Eco-Bog System to Challenge It." European Journal of Environment and Earth Sciences 2, no. 3 (June 5, 2021): 29–40. http://dx.doi.org/10.24018/ejgeo.2021.2.3.141.
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Wastewater Treatment Plants (WWTPs) on the planet, daily processing billions of tons of wastewater and producing masses of sludge accordingly, act like artificial biogeochemical cycles themselves by producing material flow and creating microbial life cycles that normally do not exist in nature, a case with unknown cumulative long-term effects on the planet and human organisms. This study identifies WWTPs as a general Earth system problem with sub-problems to be challenged by new engineering techniques with an integrated natural science perspective. In order to challenge these problems, first the overall ecological role of WWTPs is clarified. Second a literature review (a) on the contents of the end products of wastewater engineering (b) on the effects of utilization of sewage sludge as fertilizer (c) on the utilization of sewage sludge as cement and construction material is provided. Current legal and practical situation in Turkey and EU is very briefly compared. Then, the design of the circular economic eco-bog system, which is a conceptual model of a new technology both to challenge these problems as much as possible and to act as an integrated industrial production system, is introduced. The new system is based on an innovative algaculture and ecomimicry of the evolution of wetland ecosystems from lake to terrestrial ecosystems. Algaculture and artificial bog components of the system use desulphurised fuel gases from both biogas component of the system and also concrete production component of the system. Desulphurization is to avoid H2S production in eco-bog unlike the natural bog ecosystems, and produce sulphurous fertilizers, and produce bog ecosystem services. Since, the fuel gas utilization from the biogas produced by archaebacteria is already net carbon zero, all system makes negative emission, namely sequestration. The CO2 to be released is fixed as biocarbon in algae in agriculture component, and then as organic and inorganic carbon after the sedimentation during accelerated evolution of eco-bog by creating hypoxia, acidification, and eutrophication conditions in artificial lake ecosystem. This sedimentation is mixed with sewage sludge ash for production of cement to have a higher quality concrete. Microbial biofertilizer and organic fertilizers are also produced from the algaculture component of the system, and industrial lichen from bog ecosystem. The system is inspired from lake death mechanisms of the nature, rather than lake health mechanisms in order to capture carbon and nitrogen in lithosphere and biosphere rather than releasing them to atmosphere as fuel gases, imitating natural bogs which are important carbon reservoirs. Finally, a new theorization of the issue is postulated as a way forward to reach SDGs, circular economy and bioeconomy targets of EU Green Deal as well as targets of RIO Conventions and Paris Agreement, not based on water quality arguments but based on mass and energy arguments, as well as arguments for ecologic health and preventive medical treatment for public health, and arguments for integrated industrial production in a holistic manner.
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Srivastava, Rajiv Ranjan, Dilip Kumar Rajak, Sadia Ilyas, Hyunjung Kim, and Pankaj Pathak. "Challenges, Regulations, and Case Studies on Sustainable Management of Industrial Waste." Minerals 13, no. 1 (December 28, 2022): 51. http://dx.doi.org/10.3390/min13010051.
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Incessant generation and mismanagement of industrial waste, resource scarcity, and environmental degradation have created non-sustainability in human life. Though industrial wastes are hazardous or non-hazardous in nature based on their source, open dumping disposal is commonly done for both types of waste. The adversity associated with waste enhances the environmental and health impacts. However, this waste has the potential to recycle and minimize resource scarcity. The circular economy works on the concept of reuse, recycling, and recovery to convert waste into a resource. Thus, industrial waste can benefit the environment and economic growth to build industrial ecology. However, the opportunities and challenges associated with industrial ecology for the reuse and recycling of waste have to be identified and preserved. Therefore, this study has identified challenges associated with waste, analyzed their impact, and industrial regulations, prioritized their criticality, and developed solution strategies to alleviate them. Two case studies on industrial byproducts, i.e., fly ash and red mud, based on different income groups are discussed in this study. It highlights the circular economy has minimized waste generation and enhanced the recovery of secondary resource materials. In addition, this study supports achieving the sustainable development goals (SDGs) 11 and 12 to build a sustainable industrial ecosystem.
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Liu, Changhao, and Raymond Côté. "A Framework for Integrating Ecosystem Services into China’s Circular Economy: The Case of Eco-Industrial Parks." Sustainability 9, no. 9 (August 24, 2017): 1510. http://dx.doi.org/10.3390/su9091510.
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Asgari, Amir, and Reza Asgari. "How circular economy transforms business models in a transition towards circular ecosystem: the barriers and incentives." Sustainable Production and Consumption 28 (October 2021): 566–79. http://dx.doi.org/10.1016/j.spc.2021.06.020.
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Gatzioura, Sànchez-Marrè, and Gibert. "A Hybrid Recommender System to Improve Circular Economy in Industrial Symbiotic Networks." Energies 12, no. 18 (September 16, 2019): 3546. http://dx.doi.org/10.3390/en12183546.
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Recently, the need of improved resource trading has arisen due to resource limitations and energy optimization problems. Various platforms supporting resource exchange and waste reuse in industrial symbiotic networks are being developed. However, the actors participating in these networks still mainly act based on predefined patterns, without taking the possible alternatives into account, usually due to the difficulty of properly evaluating them. Therefore, incorporating intelligence into the platforms that these networks use, supporting the involved actors to automatically find resources able to cover their needs, is still of high importance both for the companies and the whole ecosystem. In this work, we present a hybrid recommender system to support users in properly identifying the symbiotic relationships that might provide them an improved performance. This recommender combines a graph-based model for resource similarities, while it follows the basic case-based reasoning processes to generate resource recommendations. Several criteria, apart from resource similarity, are taken into account to generate, each time, the list of the most suitable solutions. As highlighted through a use case scenario, the proposed system could play a key role in the emerging industrial symbiotic platforms, as the majority of them still do not incorporate automatic decision support mechanisms.
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Kalaida, Marina Lvovna, Madina Farhadovna Khamitova, Andrey Andreevich Kalaida, Svetlana Dmitrievna Borisova, and Valeria Vladimirovna Babikova. "ELEMENTS OF CIRCULAR TECHNOLOGIES IN AQUACULTURE." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2021, no. 2 (June 30, 2021): 76–89. http://dx.doi.org/10.24143/2073-5529-2021-2-76-89.
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The elements of circular technologies in aquaculture on various types of energy are considered. The development of forms of aquaculture from pasture to industrial with an increase in the share of circular technologies is shown. It is noted that the use of cage fish farming on the waste warm waters of energy facilities is complicated by eutrophication at high fish planting densities and the peculiarities of temperature and hydrochemical regimes. The need to select new aquaculture objects with a fast growth rate, thermophilic and not demanding to the oxygen content in the water is noted: the African clarias catfish (Clarias gariepinus) is a promising object for growing in warm waters. The possibilities of including other representatives of catfish - shilbovye catfish (Pangasius) - are considered. It is shown that due to the expansion of biotechnologies for growing valuable objects in installations with a closed water supply cycle, thermophilic hydrobionts, for example, the Australian red-clawed crayfish Cherax quadricarinatus, can be used as elite delicatessen products. It is shown that the complex hydrobiocenosis of fouling is formed by a set of consults of different orders. A fish-breeding system with elements of circular technologies becomes similar in structure to a natural ecosystem. The results of experimental cultivation of spicy vegetable crops on the waste products of carp and clary catfish are presented. Aquaculture and aquaponics as specific components of the modern agricultural sector in development are focused on industrial production technologies with the use of circular technologies for the efficient use of resources.
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Sopelana, Amaia, Camille Auriault, Anurag Bansal, Karmen Fifer, Helena Paiva, Christian Maurice, Gunnar Westin, Javier Rios, Asier Oleaga, and Antonio Cañas. "Innovative Circular Economy Models for the European Pulp and Paper Industry: A Reference Framework for a Resource Recovery Scenario." Sustainability 13, no. 18 (September 15, 2021): 10285. http://dx.doi.org/10.3390/su131810285.
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According to recent literature in the field of sustainability, the circular economy (CE) appears to be a thriving opportunity for creating new businesses, although less attention has been paid to the form in which its principles fit into a comprehensive framework that enables companies to design it in a practical way. This paper presents the methodology that has been adopted to pave the way to a coherent reference framework for circular business model innovation and its outstanding design and implementation, taking into consideration the entire value and supply chain. A unique analysis of recent innovations in circular economy models is provided herein, together with an exhaustive analysis of those elements that enable or hinder their implementation. The main interactions among all those critical elements influencing how organisations innovate and operate cooperatively within a CE ecosystem are also evaluated. In addition, a study of five industrial cases in the pulp and paper industry allowed searching for industrial insights and empirical evidence of the relevance of those elements, including observation, document analysis, and interviews. Lastly, the main outcomes of this research are illustrated using the CE reference framework designed when applied to the aforementioned industrial cases, and relevant insights into future improvements are also provided.
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Trevisan, Adriana Hofmann, Camila Gonçalves Castro, L. A. V. Gomes, and J. Mascarenhas. "Unlocking the circular ecosystem concept: Evolution, current research, and future directions." Sustainable Production and Consumption 29 (January 2022): 286–98. http://dx.doi.org/10.1016/j.spc.2021.10.020.
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Kormishkina, Ludmila, Evgenii Kormishkin, Vladimir Gorin, and Dmitrii Koloskov. "Circular investments as a key to solving the growth dilemma." Economic Annals-ХХI 188, no. 3-4 (May 10, 2021): 58–68. http://dx.doi.org/10.21003/ea.v188-07.
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The rationale for this study is based on the extreme importance of finding a solution to a complex growth dilemma arising from the negative effects of human activity and the limited ability of the ecosystem to regenerate and provide resources required by mankind to ensure sustainable development and the long-term prosperity. The research is aimed at proving a scientific hypothesis that states: when the global raw-materials crisis becomes increasingly noticeable in various countries of the world, including Russia, circular investments may become a driver for long-term economic growth and the launch of far-reaching reforms of the economy in the 21st century. Circular investments in this paper are viewed as a special type of real eco-investment that combines advancements in technology and innovations to ensure renewal and industrial-scale reproduction of resources (raw materials and energy) from industrial and household waste, along with the mitigation and/or elimination of negative effects, on the environment. A multiple linear regression model has been developed to confirm a statistically-relevant connection between circular investments and real GDP. As a methodological foundation for the model, we used the classic Cobb-Douglas production function modified to take into account industrially reproduced raw material resources included in the production process. Further, we have defined major limits for circular investments in Russia today and highlighted the primary measures which are to be taken to launch circular investments in order to find a solution to the complex growth dilemma.
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Cerreta, Maria, Chiara Mazzarella, Martina Spiezia, and Maria Rosaria Tramontano. "Regenerativescapes: Incremental Evaluation for the Regeneration of Unresolved Territories in East Naples." Sustainability 12, no. 17 (August 27, 2020): 6975. http://dx.doi.org/10.3390/su12176975.
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The unresolved territories are privileged places for the proliferation of degradation phenomena that affect the environment and human well-being. The impacts of their critical conditions go beyond the limits of the damaged urban fragments, involving the built environment, society, economy, culture, and conditioning quality of life. This paper proposes a methodological approach to landscape design supported by an evaluation framework to orient strategic design planning with specific attention to unresolved territories consistent with the circular economy perspective. The circular city principles are applied to landscape spatial planning, by operationalising Ecosystem Services, Landscape Services, and Ecosystem Disservices, as interpretative categories for multi-dimensional regenerative strategies. Starting from a theoretical framework, the objective of the analysis is to implement an approach to the regenerative design of landscapes of waste, defined wastescapes. The industrial area of East Naples is the case study where an incremental evaluative approach has been defined to design scenarios to provide services and values, aimed to drive the conversion in a regenerativescape. A multi-criteria analysis through preference ranking organisation method for enriched evaluation (PROMETHEE)-GAIA method has been implemented to compare the base case scenario with two incremental new scenarios and identify situated sustainable priorities.
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Ai, Liangyou. "Water Resources Carrying Capacity and Circular Economy Based on Fuzzy Multilayer Algorithm." Computational Intelligence and Neuroscience 2022 (August 18, 2022): 1–9. http://dx.doi.org/10.1155/2022/9959933.
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By combining the relevant theoretical foundations such as fuzzy algorithm and water resources environmental management, and selecting the actual water resources integration data, this paper establishes an index system to investigate the carrying capacity of the water environment in this area. Through the study and application of the comprehensive multilevel fuzzy evaluation model, based on scenario analysis, the current situation of water resources environmental management and the temporal and spatial variation characteristics of water resources in the study area in recent years were evaluated. In order to observe the differences more accurately in the spatial structure of water use in the study area through information entropy, ArcGIS IS images were drawn according to the calculation results of the urban degree balance in the study area. In the development of circular economy, the information center plays an important role in the industrial ecosystem, which is the basis for the recycling of materials, energy, and water. By building a unique data platform, it can help companies understand the latest status of logistics, energy, and waste recycling in the park and can make adaptive adjustments to the above conditions, to achieve the sustainable development of the overall industrial chain.
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Liu, Chang. "Evaluation Model of Low-Carbon Circular Economy Coupling Development in Forest Area Based on Radial Basis Neural Network." Complexity 2021 (February 15, 2021): 1–12. http://dx.doi.org/10.1155/2021/6692792.
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In this paper, we study the radial neural network algorithm for low-carbon circular economy in forest area, design a coupled development evaluation model, study its algorithmic ideas operation mode and the update formula obtained by standard algorithm, and finally optimize the RBF neural network by particle swarm algorithm. After an in-depth analysis of the particle swarm algorithm, an improved particle swarm algorithm is proposed to improve the search accuracy and capability of the algorithm by nonlinearly adjusting the inertia weights and introducing the average extreme value factor, in response to the problems of premature convergence and poor search capability that appear in the particle swarm algorithm. Through the analysis and evaluation of the interaction between industrial ecosystem and carbon emission, the main influencing factors of carbon emission are identified, and the size and magnitude of the influence of economic growth, industrial structure, energy intensity, and energy structure on carbon emission are determined; the current situation of the industrial ecological structure is evaluated, and the direction of optimization and adjustment of industrial economic structure, energy structure, and ecological structure is clarified. We construct a multidimensional multiconstraint multimodel industrial ecological structure optimization prediction model, set the development scenarios of economy and society, and optimize the prediction of low-carbon industrial ecological structure in forest areas; based on the simulation analysis of the prediction results, we propose the direction of industrial ecological structure adjustment and the path of industrial ecological system construction.
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Nikitaeva, Anastasia, and Natalia Kiseleva. "Reconfiguration of Business Models of Industrial Enterprises: Vectors of Increasing Sustainability in the New Realities." Vestnik Volgogradskogo gosudarstvennogo universiteta. Ekonomika, no. 1 (April 2021): 110–20. http://dx.doi.org/10.15688/ek.jvolsu.2021.1.9.
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The purpose of the article is to study the priority areas of reconfiguration of business models of industrial enterprises to solve the problem of increasing their stability in an unstable economic situation. The paper reveals the essence and structural components of business models. It is proved based on the analysis of literary sources that the business model with the help of narratives, figures, and graphic models describes how the organization creates, delivers, and captures value in the existing context. With this in mind, the key vectors of business model innovation of industrial companies using the potential of Industry 4.0 technologies are identified. First, the possibilities of transforming business models based on the introduction of digital technologies as drivers of transformation (blockchain, Internet of Things, Artificial intelligence, etc.) are justified, and the feasibility of complex application of digital technologies for business model innovation is established. Secondly, the content of the reconfiguration of business models in line with the ecosystem approach and the creation of open digital ecosystems of economic entities in the industrial sphere is revealed. Third, the importance of creating circular business models of industrial companies that reflect the transition from the classical linear model of production to the closed-cycle model is justified. It is determined that together these vectors of reconfiguration of business models of industrial enterprises will ensure the growth of the sustainability of manufacturing companies as a result of the growth of the connectivity of the environment, resource efficiency, and data-driven “smart” management.
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Khalifa, Ahmed A., Abdul-Jalil Ibrahim, Abdulkarem I. Amhamed, and Muftah H. El-Naas. "Accelerating the Transition to a Circular Economy for Net-Zero Emissions by 2050: A Systematic Review." Sustainability 14, no. 18 (September 16, 2022): 11656. http://dx.doi.org/10.3390/su141811656.
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Achieving net-zero emissions by 2050 will require tackling both energy-related and non-energy-related GHG emissions, which can be achieved through the transition to a circular economy (CE). The focus of climate change crisis reversal has been on the energy-related continuum over the years through promoting renewable energy uptake and efficiency in energy use. Clean energy transition and efficiency gains in energy use alone will not be sufficient to achieve net-zero emissions in 2050 without paying attention to non-energy-related CO2 emissions. This study systematically reviews the CE literature across different themes, sectors, approaches, and tools to identify accelerators in transitioning to a CE. The study aims to understand and explore how technology, finance, ecosystem, and behavioral studies in the CE paradigm can be integrated as a decision-making tool for CE transition. The material analysis was carried out by identifying the main characteristics of the literature on CE implementation in the agriculture, industry, energy, water, and tourism sectors. Results of the literature survey are synthesized to engender clarity in the literature and identify research gaps to inform future research. Findings show that many studies focused on technology as an accelerator for CE transition, and more studies are needed regarding the CE ecosystem, financing, and behavioral aspects. Also, results show that CE principles are applied at the micro-, meso-, and macro- (national, regional, and global) levels across sectors with the dominance of the industrial sector. The agriculture, water, and energy sectors are at the initial stages of implementation. Additionally, the use of carbon capture and utilization or storage, conceptualized as a circular carbon economy, needs attention in tackling CE implementation in the energy sector, especially in hydrocarbon-endowed economies. The major implication of these findings is that for CE to contribute to accelerated net-zero emission by 2050, coordinated policies should be promoted to influence the amount of financing available to innovative circular businesses and technologies within an ecosystem that engenders behavioral change towards circularity.
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Hernández-Chover, Vicent, Lledó Castellet-Viciano, and Francesc Hernández-Sancho. "A Tariff Model for Reclaimed Water in Industrial Sectors: An Opportunity from the Circular Economy." Water 14, no. 23 (December 1, 2022): 3912. http://dx.doi.org/10.3390/w14233912.
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The growth of the world’s population is associated with an increase in demand for water. The consequences of this increase are twofold: On the one hand, it endangers the water balance of the ecosystem, and on the other hand, it considerably increases the volume of wastewater generated. In this sense, wastewater treatment plants (WWTPs) play a fundamental role since their objective is to guarantee the quality of the effluents discharged into the environment. Moreover, current treatment systems allow for the subsequent use of the effluent. Thus, the wastewater treatment sector can be seen as an unconventional source of water, acquiring a special importance in the framework of the circular economy. In this context, water reclamation and reuse are identified as key components of water resource management. However, the economic aspects, in terms of tariff design and cost recovery, represent a major barrier to incentivizing its use. In this paper, the authors analyze these aspects and propose a tariff that combines the cost recovery, an incentive to use reclaimed water and other relevant aspects that guarantee the success of water reuse projects. With this objective, three industrial sectors are evaluated. For the first sector, the user industries would achieve a saving of approximately 10% by changing the consumption of conventional water to reclaimed water; in the second sector, they would achieve a saving of 18% and in the third sector a saving of approximately 16%. In addition to guaranteeing sustainability in the consumption of reclaimed water in industry, the viability of the supplying company is ensured. This research offers valuable results that will be useful for establishing future strategies aimed at encouraging the use of reclaimed water in industrial environments.
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Montiel-Rosales, Aarón, Nayeli Montalvo-Romero, Luis Enrique García-Santamaría, Luis Carlos Sandoval-Herazo, Horacio Bautista-Santos, and Gregorio Fernández-Lambert. "Post-Industrial Use of Sugarcane Ethanol Vinasse: A Systematic Review." Sustainability 14, no. 18 (September 16, 2022): 11635. http://dx.doi.org/10.3390/su141811635.
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Vinasse is a toxic pollutant if it is poured into the ecosystem indiscriminately; despite this, it integrates components that make it valuable in nutrients and water. However, its use has been questioned due to the costs involved in its purification. This systematic review focuses on the valorization of vinasse from the studies performed for its post-industrial use. Trends in vinasse management and bioproduct development were analyzed. The PRISMA statement was used as a formal guide for collecting and analyzing 131 studies from 2018 to 2022. We determined that biological processes are the most used to obtain the benefits of vinasse, obtaining up to three post-industrial bioproducts. While it is true that there is a predominant trend of studies focused on the generation of biofuels, it must be noted that the beginning of the sucro-alcohol chain was the agricultural field. In this sense, we determine that 14% of the studies treat vinasse for agricultural reuse purposes, so, under Circular Economy principles, the reincorporation of vinasse into the agricultural field to take advantage of its goodness in nutrients and minerals as a sustainable and eco-efficient alternative should be a research trend that accelerates the consumption of vinasse generated in alcohol distilleries.
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Guevara-Rivera, Edna, Roberto Osorno-Hinojosa, Victor Zaldivar-Carrillo, and Humberto Perez-Ortiz. "Dynamic simulation methodology for implementing circular economy: A new case study." Journal of Industrial Engineering and Management 14, no. 4 (October 20, 2021): 850. http://dx.doi.org/10.3926/jiem.3609.
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Purpose: Circular economy (CE) principles have evolved in response to natural resource depletion as a set of guidelines for eliminating the linear take-use-dispose model of product consumption. The consequences of shifting from a linear to a circular supply chain are difficult to visualize in the long term. This study aims to design a methodology for building a simulation model to implement CE strategies in any small and medium-sized enterprise SME to prove policies before implementing them in the real world. This paper applied the methodology in a biological cycle case study: a confectionery factory in Mexico.Design/methodology/approach: This study evaluated service-dominant logic, ecosystem services, system dynamics, and agent-based modeling to design the proposed methodology. A series of interviews with stakeholders were performed to assess the simulation model during the development phase. The circular economy indicator prototype (CEIP) was used as a circular maturity measure of the confectionery factory. The simulator was executed in Netlogo software, implementing a four-scenario analysis based on two CE policies for the caramel recycling process. Five state variables were proposed in this analysis: confectionery waste, recycled glucose, recycling utilization, costs of recycled glucose, and profit.Findings: The CEIP score of the confectionery factory was 52%, rated as a “good” product. Regarding scenario analysis, the first scenario had the highest profit improvement.Practical implications: The simulator allowed stakeholders to understand the operation of the recycling process and visualize all variables involved in the system.Originality/value: In the CE literature, little attention has been paid to proposing a methodology for designing a simulation model to implement CE strategies in any industry. Thus, this study implements a nine-step methodology based on services context and dynamic simulation tools to design a platform to evaluate and visualize the consequences of CE strategies implementation in the long term.
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Simón, Daiana, Cristina Palet, Agustín Costas, and Adrián Cristóbal. "Agro-Industrial Waste as Potential Heavy Metal Adsorbents and Subsequent Safe Disposal of Spent Adsorbents." Water 14, no. 20 (October 19, 2022): 3298. http://dx.doi.org/10.3390/w14203298.
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Water pollution is an environmental problem that affects the ecosystem and living beings. Adsorption is one of the best technologies for the removal of heavy metals. Since waste recovery is the basis of the Circular Economy, agro-industrial waste is emerging as low-cost adsorbents for these pollutants from wastewater. Residues of pine sawdust, sunflower seed hulls and corn residues mix were evaluated as adsorbents of synthetic aqueous solutions of Ni(II), Zn(II) and Cd(II). These residues were characterized to determine their structure and composition, and to understand the adsorption mechanism. Adsorption efficiencies and capacities for the adsorbents and adsorbates were determined and compared. From the obtained results, it is possible to affirm that all biomasses used are good alternatives to the synthetic materials, with adsorption efficiencies greater than 50%. The order of adsorption was Cd > Zn > Ni. At the concentration range checked, adsorption efficiencies decreased in sawdust when a mixture of all metals together was considered (as present in real sewage). Finally, the heavy metals were immobilized, with efficiencies over 88.5%, in clay ceramics (as brick’s precursors). This procedure would help to minimize the contamination that could be generated by the disposal of spent adsorbents, rarely explored in the literature.
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Palander, Teijo, Hanna Haavikko, Emma Kortelainen, and Kalle Kärhä. "Comparison of Energy Efficiency Indicators of Road Transportation for Modeling Environmental Sustainability in “Green” Circular Industry." Sustainability 12, no. 7 (March 31, 2020): 2740. http://dx.doi.org/10.3390/su12072740.
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The Finnish forest industry is committed to applying novel technologies for increasing carbon-neutral development and environmental sustainability in “green” circular industry. This study compares the energy efficiency indicators of road freight transportation. Additionally, effects of four mass limits of vehicle combinations are analyzed after a three-year adaptation process that took place in a wood procurement region of 100% renewable resources. The wood-based energy efficiency model (load’s wood energy/fossil transport energy) was the most accurate and precise measure as the development indicator. The indicator showed that the transportation systems (60, 64, 68, and 76 t) and (64, 68, and 76 t) were carbon negative (122, 133, 144, and 108) (142, 147, and 133) in 2014 and 2016, respectively. The numbers reveal positive energy ratio of renewable wood and fossil fuels. In comparison to 60 t, the use of 68 t vehicles increased energy efficiency most effectively in the systems, by 18.0% and 20.5%, respectively. The indicator robustly revealed the energy efficiency of a partial system in the smaller supply region, which depended on the region’s transportation conditions. This novel knowledge can be applied for advancing the adaptation toward carbon-neutral supply networks. There is also the development potential of an industrial ecosystem model for optimizing the environmental sustainability of “green” circular industry.
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Scheel, Carlos, Eduardo Aguiñaga, and Bernardo Bello. "Decoupling Economic Development from the Consumption of Finite Resources Using Circular Economy. A Model for Developing Countries." Sustainability 12, no. 4 (February 11, 2020): 1291. http://dx.doi.org/10.3390/su12041291.
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Sustainable development is a major concern for developing and developed economies as economic growth has to led to scarcer and more expensive resources. Although countries have established public policies focusing on resource and energy efficiency, there is an increasing need for a coordinated industrial strategy able to create sustainable wealth through a holistic management of natural resources, capable of “decoupling” economic growth from resource extraction and natural deterioration. Consequently, the objective of the present research is to develop a decoupling model able to create increasing economic returns, reducing the social gap and regenerating the natural capital for regions in developing countries. Departing from a literature review on peer reviewed articles on successful industrial cases of decoupling around the world, we contrasted the linear production model with the United Nations Environment Program (UNEP)’s current four decoupling indicators in order to propose a more robust model. The result was an eight-factor decoupling model that used a well-supported framework for sustainable wealth creation named “circular value ecosystem” (CVES). By using system dynamics, we deployed the proposed framework using system dynamics modeling in order to improve the understanding of our proposal. We found that this model, with the proper regional conditions in developing countries, can: (1) reduce, through substitution, the consumption of natural resources; (2) produce alternative economic increasing returns; (3) reduce the negative environmental impacts; and (4) create self-sustainable wealth for the economy, the environment, and the social development of most stakeholders of these regions. Decoupling economic growth represents a complex and challenging task whose successful implementation can only be achieved if managed at a regional level with a systemic approach.
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C, Gajendran, Lydia Jacob, Sneha Gautam, Nitin Kumar Singh, and Roshini Praveen Kumar. "Ensuring Sustainability via Application of Root Zone Technology in a Rubber Product Industry: A Circular Economy Approach." Sustainability 14, no. 19 (September 25, 2022): 12141. http://dx.doi.org/10.3390/su141912141.
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Rapid urbanization has led to the exploitation of water quality and quantity. Urban growth and its activities result in the pollution of freshwater by generating different types of waste. Root Zone Technology (RZT) has successfully been adopted and employed in several countries to promote sustainable development. RZT paves the way for the incorporation of automated dynamics into an artificial soil ecosystem. This study’s primary goal was to develop a water treatment process for industrial effluents naturally and effectively using RZT. The technology adopts layers of coarse and fine aggregates, charcoal, sand, and planted filter beds consisting of compost media to treat effluents; the system is easily installed, low-maintenance, and has low operational costs. Selected plants achieved a result of 50–80% pollutant removal. RZT reduces the characteristics of effluents, such as chemical oxygen demand, biochemical oxygen demand, pH, color, TSS, TDS, BOD, COD, etc., by a more significant amount. Further studies of more plant species should be performed to improve this technology. Soil tests will also be an excellent option for understanding the concepts of reed absorption mechanisms. In addition, incorporating modeling in agricultural systems will be beneficial for future studies.
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Nikkhah, Amin, Saeed Firouzi, Keyvan Dadaei, and Sam Van Haute. "Measuring Circularity in Food Supply Chain Using Life Cycle Assessment; Refining Oil from Olive Kernel." Foods 10, no. 3 (March 11, 2021): 590. http://dx.doi.org/10.3390/foods10030590.
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Valorization of food waste is a potential strategy toward a circular food supply chain. In this regard, measuring the circularity of food waste valorization systems is highly important to better understand multiple environmental impacts. Therefore, this study investigated the circularity of a food waste valorization system (refining oil from olive kernel) using a life cycle assessment methodology. An inventory of an industrial-based olive kernel oil production system is also provided in this study. The system boundary was the cradle to the factory gate of the production system. The results indicated that natural gas consumption was the highest contributor to most of the investigated impact categories. The global warming potential of one kg of oil produced from olive kernel was calculated to be 1.37 kg CO2eq. Moreover, the calculated damages of 1 kg oil production from olive kernel to human health, ecosystem quality, and resource depletion were 5.29 × 10−7 DALY, 0.12 PDF∙m2∙yr., and 24.40 MJ, respectively.
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Noman, Abdulla All, Umma Habiba Akter, Tahmid Hasan Pranto, and AKM Bahalul Haque. "Machine Learning and Artificial Intelligence in Circular Economy: A Bibliometric Analysis and Systematic Literature Review." Annals of Emerging Technologies in Computing 6, no. 2 (April 1, 2022): 13–40. http://dx.doi.org/10.33166/aetic.2022.02.002.
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With unorganized, unplanned and improper use of limited raw materials, an abundant amount of waste is being produced, which is harmful to our environment and ecosystem. While traditional linear production lines fail to address far-reaching issues like waste production and a shorter product life cycle, a prospective concept, namely circular economy (CE), has shown promising prospects to be adopted at industrial and governmental levels. CE aims to complete the product life cycle loop by bringing out the highest values from raw materials in the design phase and later on by reusing, recycling, and remanufacturing. Innovative technologies like artificial intelligence (AI) and machine learning(ML) provide vital assistance in effectively adopting and implementing CE in real-world practices. This study explores the adoption and integration of applied AI techniques in CE. First, we conducted bibliometric analysis on a collection of 104 SCOPUS indexed documents exploring the critical research criteria in AI and CE. Forty papers were picked to conduct a systematic literature review from these documents. The selected documents were further divided into six categories: sustainable development, reverse logistics, waste management, supply chain management, recycle & reuse, and manufacturing development. Comprehensive research insights and trends have been extracted and delineated. Finally, the research gap needing further attention has been identified and the future research directions have also been discussed.
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Jagaba, Ahmad Hussaini, Shamsul Rahman Mohamed Kutty, Sule Abubakar, Abdullahi Haruna Birniwa, Ibrahim Mohammed Lawal, Ibrahim Umaru, Abdullahi Kilaco Usman, et al. "Synthesis, Characterization, and Performance Evaluation of Hybrid Waste Sludge Biochar for COD and Color Removal from Agro-Industrial Effluent." Separations 9, no. 9 (September 13, 2022): 258. http://dx.doi.org/10.3390/separations9090258.
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Agro-waste management processes are evolving through the development of novel experimental approaches to understand the mechanisms in reducing their pollution levels efficiently and economically from industrial effluents. Agro-industrial effluent (AIE) from biorefineries that contain high concentrations of COD and color are discharged into the ecosystem. Thus, the AIE from these biorefineries requires treatment prior to discharge. Therefore, the effectiveness of a continuous flow bioreactor system (CFBS) in the treatment of AIE using hybrid waste sludge biochar (HWSB) was investigated. The use of a bioreactor with hydraulic retention time (HRT) of 1–3 days and AIE concentrations of 10–50% was used in experiments based on a statistical design. AIE concentration and HRT were optimized using response surface methodology (RSM) as the process variables. The performance of CFBS was analyzed in terms of COD and color removal. Findings indicated 76.52% and 66.97% reduction in COD and color, respectively. During biokinetic studies, the modified Stover models were found to be perfectly suited for the observed measurements with R2 values 0.9741 attained for COD. Maximum contaminants elimination was attained at 30% AIE and 2-day HRT. Thus, this study proves that the HWSB made from biomass waste can potentially help preserve nonrenewable resources and promote zero-waste attainment and principles of circular economy.
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Martins, Valter F. R., Manuela E. Pintado, Rui M. S. C. Morais, and Alcina M. M. B. Morais. "Valorisation of Micro/Nanoencapsulated Bioactive Compounds from Plant Sources for Food Applications Towards Sustainability." Foods 12, no. 1 (December 22, 2022): 32. http://dx.doi.org/10.3390/foods12010032.
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The micro- and nanoencapsulation of bioactive compounds has resulted in a large improvement in the food, nutraceutical, pharmaceutical, and agriculture industries. These technologies serve, on one side, to protect, among others, vitamins, minerals, essential fatty acids, polyphenols, flavours, antimicrobials, colorants, and antioxidants, and, on the other hand, to control the release and assure the delivery of the bioactive compounds, targeting them to specific cells, tissues, or organs in the human body by improving their absorption/penetration through the gastrointestinal tract. The food industry has been applying nanotechnology in several ways to improve food texture, flavour, taste, nutrient bioavailability, and shelf life using nanostructures. The use of micro- and nanocapsules in food is an actual trend used mainly in the cereal, bakery, dairy, and beverage industries, as well as packaging and coating. The elaboration of bio capsules with high-value compounds from agro-industrial by-products is sustainable for the natural ecosystem and economically interesting from a circular economy perspective. This critical review presents the principal methodologies for performing micro- and nanoencapsulation, classifies them (top-down and/or bottom-up), and discusses the differences and advantages among them; the principal types of encapsulation systems; the natural plant sources, including agro-industrial by-products, of bioactive compounds with interest for the food industry to be encapsulated; the bioavailability of encapsulates; and the main techniques used to analyse micro- and nanocapsules. Research work on the use of encapsulated bioactive compounds, such as lycopene, hydroxytyrosol, and resveratrol, from agro-industrial by-products must be further reinforced, and it plays an important role, as it presents a high potential for the use of their antioxidant and/or antimicrobial activities in food applications and, therefore, in the food industry. The incorporation of these bioactive compounds in food is a challenge and must be evaluated, not only for their nutritional aspect, but also for the chemical safety of the ingredients. The potential use of these products is an available economical alternative towards a circular economy and, as a consequence, sustainability.
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Klenam, Desmond Edem Primus, Gabriel Seun Ogunwande, Taiwo Omotosho, Blessing Ozah, Nthabiseng Beauty Maledi, Silas Ithete Hango, Adefunke Abosede Fabuyide, Lesego Mohlala, Josias Willem van der Merwe, and Michael Oluwatosin Bodunrin. "Welding of magnesium and its alloys: an overview of methods and process parameters and their effects on mechanical behaviour and structural integrity of the welds." Manufacturing Review 8 (2021): 29. http://dx.doi.org/10.1051/mfreview/2021028.
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An overview of welding methods and process parameters and its effects on mechanical behaviour and structural integrity of magnesium and its alloys are discussed. These alloys are less dense and beneficial structural alloys for improved energy efficiency, eco-friendliness and driver of circular economic model for sustainable design and innovative ecosystem. While the application of Mg-alloys is projected to increase, understanding the mechanical behaviour and structural integrity of welded joints are critical. Thus, fusion and solid-state welding processes of these alloys are discussed with emphasis on mechanical characterization. Laser welding is the most effective fusion welding technique for most Mg alloys whereas, the predominant solid-state method is friction stir welding. The importance of process variables such as heat inputs, welding velocity (speed) and post weld treatments on the microstructural evolution, on mechanical and physical properties of the distinct zones of the weld joints are described. The weldment is the most susceptible to failure due to phase transformation, defects such as microporosity and relatively coarse grain sizes after solidification. The implication of the design of quality weld joints of Mg alloys are explored with areas for future research directions briefly discussed.
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Miros-Kudra, Patrycja, Paulina Sobczak, and Ewa Kopania. "Removal of Heavy Metals from Aqueous Solutions with the Use of Lignins and Biomass." Fibres & Textiles in Eastern Europe 151, no. 2 (June 2, 2022): 99–111. http://dx.doi.org/10.2478/ftee-2022-0013.
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Abstract The overproduction of pollutants resulting from the development of industry causes the deposition of large amounts of toxic and carcinogenic substances, including heavy metals, in the aquatic ecosystem and other ecosystems. This is a civilisation problem of the present times, posing a serious threat to the natural environment, including humans. For this reason, it has recently become extremely important to develop effective methods to minimise the concentration of heavy metal ions in the aquatic systems and thus reduce their negative impact on the environment. One such technique is adsorption, which is believed to be an effective method of removing contaminants such as heavy metal ions from aqueous solutions. Looking at the available literature of the last few years, it can be concluded that adsorbents of natural origin are becoming more and more important. These are agricultural waste, all kinds of biomass, and waste from various industries. The study attempts to present and evaluate the sorption capacity of materials of natural origin, including oat bran, chitosan, alginate, tree bark, coconut fibre, and lignin. The use of such biosorbents is more friendly for the environment compared to their synthetic counterparts and perfectly fits the concept of sustainable development and the circular economy.
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Gómez-Sagasti, María T., Mikel Anza, June Hidalgo, Unai Artetxe, Carlos Garbisu, and José M. Becerril. "Recent Trends in Sustainable Remediation of Pb-Contaminated Shooting Range Soils: Rethinking Waste Management within a Circular Economy." Processes 9, no. 4 (March 25, 2021): 572. http://dx.doi.org/10.3390/pr9040572.
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Soil metal contamination in recreational shooting ranges represents a widespread environmental problem. Lead (Pb) is the primary component of traditional ammunition, followed by metalloids such as antimony (Sb) and arsenic (As). Lead-based bullets and pellets deposited on the soil surface are subject to steady weathering; hence, metal(loid)s are released and accumulated in the underlying soil, with potential adverse consequences for ecosystem function and human health. Amongst the currently available environmentally-safe technologies for the remediation of metal-contaminated soils, chemical immobilization is recognized as the most practical and cost-effective one. This technology often uses inorganic and organic amendments to reduce metal mobility, bioavailability and toxicity (environmental benefits). Likewise, amendments may also promote and speed up the re-establishment of vegetation on metal-affected soils, thus facilitating the conversion of abandoned shooting ranges into public green spaces (social benefit). In line with this, the circular economy paradigm calls for a more sustainable waste management, for instance, by recycling and reusing by-products and wastes in an attempt to reduce the demand for raw materials (economic benefit). The objective of this manuscript is to present a state-of-the-art review of the different industrial and agro-food by-products and wastes used for the remediation of metal-contaminated shooting range soils.
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Pu, Lili, Chengpeng Lu, Xuedi Yang, and Xingpeng Chen. "Spatio-Temporal Variation of the Ecosystem Service Value in Qilian Mountain National Park (Gansu Area) Based on Land Use." Land 12, no. 1 (January 7, 2023): 201. http://dx.doi.org/10.3390/land12010201.
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The value of ecosystem services and service capabilities continue to improve, and the way to form a path of resource industrialization development has become one of the important directions of sustainable development. This paper mainly takes the construction of national parks as a major opportunity and explores the temporal and spatial changes in the value of ecosystem services in Qilian Mountain National Park (Gansu area) and the construction path of the industrial system of national park construction. The total value of ecosystem services was calculated using a comprehensive index of the degree of land use, land contribution rate, ecological service value, equivalent factor of economic value, and the improved value coefficient of farmland ecological services, and then the Sensitivity index was used to reveal the dependence of the value of ecosystem services on the value index over time. The results showed the following: (1) Human disturbance factors in Qilian Mountain National Park (Gansu area) are weak, and the land use of Qilian Mountain National Park (Gansu Area) was mainly grassland, followed by unused land, forest land, and glacial snow, with the change in glacial snow cover being the largest. (2) The ecosystem of Qilian Mountain National Park (Gansu area) is strong, and the contribution rate of forest land, construction land, unused land, and glacial snow cover in Qilian Mountain National Park (Gansu Area) was positive, while cultivated land, grassland, and water area were negative. Among them, glacial snow cover contributed the most at 10.4723 the ecological barrier function plays a stable role. (3) The ecosystem service value (ESV) in Qilian Mountain National Park (Gansu Area) showed a fluctuating growth trend on the whole, showing the characteristics of high northwest and low southeast, among which the total value of grassland was the largest, the value of unused land was the smallest with the largest increase range, and the increase in water area was the smallest. (4) Qilian Mountain National Park (Gansu Area) is mainly based on regulated services, followed by support services, supply services, and cultural services, all showing a clear growth trend, increasing by 181.77%, 183.90%, 196.19%, and 170.38%, respectively. With the development of low-carbon economy and circular economy as the main idea, we aim to build a national park industrialization development path of direct product supply, indirect product supply, and basic guarantee.
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Cozea, Andreea, Gheorghe-Cosmin Manea, Elena Bucur, and Gina Alina Catrina Traistaru. "Sensitive bioindicator plants studies, under the environmental conditions of climate change impact." Proceedings of the International Conference on Business Excellence 14, no. 1 (July 1, 2020): 50–58. http://dx.doi.org/10.2478/picbe-2020-0006.
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AbstractAir pollution is a serious problem in many heavily populated and industrialized areas in the world. It affects vegetation, and also human health. The diversification of emission sources, among them vehicles, industrial processes, waste burnings and fuel storage, creates zones with different species and concentrations of air pollutants. In this paper was studied the excessive accumulation of toxic metals such as Al, Cr, Ni, Zn, Pb in vegetation as a risk factor for ecosystem and also for human health. The purpose of the study was to establish an optimal method of determination for toxic elements accumulation in leaves, using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). These results made to suppose that, visible and analyzed responses of in in-situ exposed bio monitors compared with heavy metal accumulation depended on the atmospheric situation during the period of exposure, which could assess the efficiency of biomonitoring programs in the region. The advantage of this study consists in new and appropriate approach using a friendly methodology for air monitoring and favoring the development of a circular and sustainable economy.
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Rossi, Ludovica, Deborah Leone, Andrea Barni, and Alessandro Fontana. "Assessing the Sustainability of Industrial Equipment Life Extension Strategies through a Life Cycle Approach: Methodology and Practical Guidelines." Processes 10, no. 2 (January 21, 2022): 203. http://dx.doi.org/10.3390/pr10020203.
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Nowadays, Circular Economy (CE) is shifting from a nice-to-have marketing operation to a business development strategy that is central to the restoring and preservation of our natural ecosystem. However, despite motivated promotion efforts, the concrete application of this model at the micro-level is still in its infancy due to several challenges that companies face. One of these challenges is the uncertainty that businesses have in the estimation of the actual impact that adopting CE strategies can have on their activities from an environmental and economic perspective. This work aims to define a conceptual framework to be applied to the Life Cycle Extension Strategies (LCES) of products, which is meant to understand whether the application of a strategy is beneficial from an environmental and economic point of view. In order to address the identified need, a list of indicators to be exploited in the LCES performance analysis has been designed and divided into the two categories of environmental and economic indicators. On the top of this, a calculation methodology that is based on life cycle perspective approaches is applied, which exploits a gap-based approach and thus, compares the effects generated by the linear strategy and those created by the LCES analysis. The evaluation approach is meant to highlight the possible advantages and disadvantages offered by the CE model for product lifecycles. The conceptual framework is tested through an industrial case study and further analysis leading to the improvement of the calculation methodology is discussed.
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Wang, Xiuming, Youyue Wen, Xucheng Liu, Ding Wen, Yingxian Long, Peng Zhao, Piao Liu, and Jenny Zhong. "Protection Effect and Vacancy of the Ecological Protection Redline: A Case Study in Guangdong–Hong Kong–Macao Greater Bay Area, China." Remote Sensing 13, no. 24 (December 20, 2021): 5171. http://dx.doi.org/10.3390/rs13245171.
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The Ecological Protection Redline (EPR) is an innovative measure implemented in China to maintain the structural stability and functional security of the ecosystem. By prohibiting large-scale urban and industrial construction activities, EPR is regarded as the “lifeline” to ensure national ecological security. It is of great practical significance to scientifically evaluate the protection effect of EPR and identify the protection vacancies. However, current research has focused only on the protection effects of the EPR on ecosystem services (ESs), and the protection effect of the EPR on ecological connectivity remains poorly understood. Based on an evaluation of ES importance, the circuit model, and hotspot analysis, this paper identified the ecological security pattern in Guangdong–Hong Kong–Macao Greater Bay Area (GBA), analyzed the role of EPR in maintaining ES and ecological connectivity, and identified protection gaps. The results were as follows: (1) The ecological sources were mainly distributed in mountainous areas of the GBA. The ecological sources and ecological corridors constitute a circular ecological shelter surrounding the urban agglomeration of the GBA. (2) The EPR effectively protected water conservation, soil conservation, and biodiversity maintenance services, but the protection efficiency of carbon sequestration service and ecological connectivity were low. In particularly, EPR failed to continuously protect regional large-scale ecological corridors and some important stepping stones. (3) The protection gaps of carbon sequestration service and ecological connectivity in the study area reached 1099.80 km2 and 2175.77 km2, respectively, mainly distributed in Qingyuan, Yunfu, and Huizhou. In future EPR adjustments, important areas for carbon sequestration service and ecological connectivity maintenance should be included. This study provides a comprehensive understanding of the protection effects of EPR on ecological structure and function, and it has produced significant insights into improvements of the EPR policy. In addition, this paper proposes that the scope of resistance surface should be extended, which would improve the rationality of the ecological corridor simulation.
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Ferrans, Laura, Yahya Jani, Ling Gao, and William Hogland. "Characterization of dredged sediments: a first guide to define potentially valuable compounds – the case of Malmfjärden Bay, Sweden." Advances in Geosciences 49 (September 24, 2019): 137–47. http://dx.doi.org/10.5194/adgeo-49-137-2019.
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Abstract. Millions of tons of bottom sediments are dredged annually all over the world. Ports and bays need to extract the sediments to guarantee the navigation levels or remediate the aquatic ecosystem. The removed material is commonly disposed of in open oceans or landfills. These disposal methods are not in line with circular-economy goals and additionally are unsuitable due to their legal and environmental compatibility. Recovery of valuables represents a way to eliminate dumping and contributes towards the sustainable extraction of secondary raw materials. Nevertheless, the recovery varies on a case-by-case basis and depends on the sediment components. Therefore, the first step is to analyse and identify the sediment composition and properties. Malmfjärden is a shallow semi-enclosed bay located in Kalmar, Sweden. Dredging of sediments is required to recuperate the water level. This study focuses on characterizing the sediments, pore water and surface water from the bay to uncover possible sediment recovery paths and define the baseline of contamination in the water body. The results showed that the bay had high amounts of nitrogen (170–450 µg L−1), leading to eutrophication problems. The sediments mainly comprised small size particle material (silt, clay and sand proportions of 62 %–79 %, 14 %–20 %, 7 %–17 %, respectively) and had a medium–high level of nitrogen (7400–11 000 mg kg−1). Additionally, the sediments had little presence of organic pollutants and low–medium concentration of metals or metalloids. The characterization of the sediments displays a potential use in less sensitive lands such as in industrial and commercial areas where the sediments can be employed as construction material or as plant-growing substrate (for ornamental gardens or vegetation beside roads).
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Kazbekovna Kuizheva, Saida, Ludmila Grigorievna Matveeva, Tatiana Anatolievna Ovsyannikova, Vladimir Ivanovich Zarubin, and Anastasiy Valerievna Kaplina. "Circular business paradigm in innovative solvations of industrial ecosystems of regions." Nexo Revista Científica 35, no. 01 (April 5, 2022): 199–211. http://dx.doi.org/10.5377/nexo.v35i01.13931.
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In the conditions of the continuing crisis, determined both by external sanctions against Russia from several Western states, and the ongoing coronavirus pandemic, it is the industrial ecosystems of the country's regions that form innovative solvations with subjects of other industries and spheres of activity and are the main rational consumers of regional resources that combine the potential of innovative speed, high quality, adaptation to changing consumer demands, etc. This article examines the scientific and practical problem of the formation and functioning of innovation-oriented industrial solvates, the solution of which is in line with the new approach proposed by the authors to identify, determine the sources and rank the effects of innovative solvations in the regional industry. This approach is built on the concept of a circular economy, which is based on the assumption of the most rational organization and use of all types of resources of integrated industrial enterprises and related industries (spheres of activity), including through the use of end-to-end digital technologies. It has been proved that in various phases of the economic cycle, effective resource provision of solvation processes in the system of industrial innovations is of decisive importance, which means not only the rational distribution of limited resources between the participants of innovative solvations but also their lean and waste-free use in the production process.
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Rajala, Risto, Esko Hakanen, Juri Mattila, Timo Seppälä, and Mika Westerlund. "How Do Intelligent Goods Shape Closed-Loop Systems?" California Management Review 60, no. 3 (March 5, 2018): 20–44. http://dx.doi.org/10.1177/0008125618759685.
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Disruptive technologies can increase the intelligence of goods and revitalize business models in the circular economy. Applying an industrial ecology perspective, this article discusses how intelligent goods can boost the sustainability of industrial ecosystems. North American and European cases highlight how business model innovators can utilize goods-related information to develop more competitive closed-loop systems. The authors identify three archetypes of closed-loop systems—inner circles, decentralized systems, and open systems—and delineate how they leverage information resources for collaboration. This study advances the understanding of closed-loop systems in the circular economy, which is more dependent than ever on digital platforms.
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Fagone, Clelia, Margherita Santamicone, and Valentina Villa. "Architecture Engineering and Construction Industrial Framework for Circular Economy: Development of a Circular Construction Site Methodology." Sustainability 15, no. 3 (January 18, 2023): 1813. http://dx.doi.org/10.3390/su15031813.
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All sectors have been affected by digital, economic, and demographic transitions. These will also be completely changing the paradigms of the construction industry, which is increasingly being pressured to implement strategic solutions in order to mitigate its own current environmental impact. Existing environmental standards and voluntary protocols are useful tools for reducing the environmental impact of buildings and infrastructures above all during the operation phase, but there is no consistent methodology for creating a circular and sustainable construction stage at the moment, probably because this represents a small stage in the entire life cycle of a structure; nevertheless, the construction industry impacts a lot on the environment and should be managed in a circular way. A detailed analysis of the current problem is provided, as well as a potential solution involving a transition to a circular economic model for the entire construction lifecycle, supported by innovative models and methodologies. The purpose of this article is to create a “Circular Construction Sites” (CCS) flow using circular concepts and to develop a circular methodology for construction sustainability, considering practical solutions related to materials, water, and waste management. According to the circular economy model, the circular construction site can communicate with other industrial ecosystems to promote external circularity and zero waste production. A set of potential key performance indicators (KPIs) for monitoring circularity processes is presented. Finally, a method is proposed that circularizes not only the building or infrastructure design, but also the construction phase.
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Mohajan, Haradhan Kumar. "Circular Economy can Provide a Sustainable Global Society." Journal of Economic Development, Environment and People 9, no. 3 (September 30, 2020): 38. http://dx.doi.org/10.26458/jedep.v9i3.670.
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Since start of the Industrial Revolution about 260 years ago, the negative effects from the traditional linear economy (LE) become threat to the stability of the economies and natural ecosystems. Strength of climate change, reduction of environment pollution and integrity of ecosystems are essential issues for survival of the global humanity. According to LE resources for production are easily available and unlimited, and after use wastes are disposable. The circular economy (CE) is an alternative to the LE where the resources may be used for as long as possible. It tries to capture the value of existing products and materials, and decreases the use of primary materials in industries. The CE is a part of environmental economics and beneficial to the society. It keeps products, components, and materials at their highest utility and maximum value at all times. At present CE is one of the most focused terms among environmental economic scientists. The aim of this study is the implementation of the sustainable development strategies and the transition from LE towards CE.
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Nemesh, Zsófia. "Implementation of the circular economic model in the Chinese practice." Acta Academiae Beregsasiensis. Economics, no. 1 (October 3, 2022): 70–79. http://dx.doi.org/10.58423/2786-6742/2022-1-70-79.
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The circular economic model is a newly (re)discovered paradigm by the humanity which seems to be inevitable in order to create a sustainable resource managment for our future, in all sectors of the economy, especially in industrial production. Disciplines such as industrial ecology have already shed the light on the importance of copying or adapting nature-based ecosystems in industrial zones, parks, see e.g., the worldwide spreading eco-industrial parks. In many parts of the world, the circular economic is not only emerging as a theoretical concept, but is also being integrated into policy-making processes and practice. The circular economy can also be an alternative to traditional – linear – economic systems on a global scale. The European Union is making a strong move in this direction, as are many other countries, including the United States and China. China is one of the most committed promoters of this concept, where we can talk about the political mainstreaming of the circular economic model since the 1990s. The country is having an exponentially increasing number of pilot projects for circular economic. By implementing the circular economic model, China is reflecting on the complex problems of the very rapid industrialization and economic growth. An extremely centralised political regime like China is using top-down methods which may not be possible to implement neither in the EU nor in the US, but it is rather the system-level thinking of circularity which must be studied, not the concrete plans and steps. This article aims to analyse why circular economy is a beneficial approach to industrial sites, why we may state that the Chinese practice is very unique and specific in a global comparison, and what might be the potential lessons or patterns other countries or regions could study and interprete. The methodology applied by the author is based on the review of recent international literature available on the best practices of circular economic, as well as concrete case studies and statistical data from China. Based on the already existing and published models, it is undebated that the Chinese practice is progressive in quantitative terms, however, there are several weak points of the pilot and demonstration projects, mainly regarding the lowel level of involvement of stakeholders (park managment and business actors) and the density of cooperation networks
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Gomes Gradíssimo, Diana, Luciana Pereira Xavier, and Agenor Valadares Santos. "Cyanobacterial Polyhydroxyalkanoates: A Sustainable Alternative in Circular Economy." Molecules 25, no. 18 (September 22, 2020): 4331. http://dx.doi.org/10.3390/molecules25184331.
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Conventional petrochemical plastics have become a serious environmental problem. Its unbridled use, especially in non-durable goods, has generated an accumulation of waste that is difficult to measure, threatening aquatic and terrestrial ecosystems. The replacement of these plastics with cleaner alternatives, such as polyhydroxyalkanoates (PHA), can only be achieved by cost reductions in the production of microbial bioplastics, in order to compete with the very low costs of fossil fuel plastics. The biggest costs are carbon sources and nutrients, which can be appeased with the use of photosynthetic organisms, such as cyanobacteria, that have a minimum requirement for nutrients, and also using agro-industrial waste, such as the livestock industry, which in turn benefits from the by-products of PHA biotechnological production, for example pigments and nutrients. Circular economy can help solve the current problems in the search for a sustainable production of bioplastic: reducing production costs, reusing waste, mitigating CO2, promoting bioremediation and making better use of cyanobacteria metabolites in different industries.