Relevant bibliographies by topics / Recycling of agricultural wastes

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Academic literature on the topic 'Recycling of agricultural wastes'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Recycling of agricultural wastes"

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Yami, Kayo Devi. "Recycling of agricultural wastes in Nepal." Resources and Conservation 13, no. 2-4 (1987): 125–34. http://dx.doi.org/10.1016/0166-3097(87)90056-3.

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Tamm, Boris, Aleksei Tymanok, and Dimitri Goljandin. "Recycling of Agricultural Wastes by Disintegrating Technology." IFAC Proceedings Volumes 33, no. 17 (2000): 223–27. http://dx.doi.org/10.1016/s1474-6670(17)39405-3.

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Suh, Dae Seok, and Yoon Hyung Kim. "The economic feasibility analysis of agricultural wastes recycling." Korean Agricultural Economics Association 58, no. 3 (2017): 187–204. http://dx.doi.org/10.24997/kjae.2017.58.3.187.

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Korol, Jerzy, Aleksander Hejna, Klaudiusz Wypiór, Krzysztof Mijalski, and Ewelina Chmielnicka. "Wastes from Agricultural Silage Film Recycling Line as a Potential Polymer Materials." Polymers 13, no. 9 (2021): 1383. http://dx.doi.org/10.3390/polym13091383.

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The recycling of plastics is currently one of the most significant industrial challenges. Due to the enormous amounts of plastic wastes generated by various industry branches, it is essential to look for potential methods for their utilization. In the presented work, we investigated the recycling potential of wastes originated from the agricultural films recycling line. Their structure and properties were analyzed, and they were modified with 2.5 wt % of commercially available compatibilizers. The mechanical and thermal performance of modified wastes were evaluated by tensile tests, thermogravimetric analysis, and differential scanning calorimetry. It was found that incorporation of such a small amount of modifiers may overcome the drawbacks caused by the presence of impurities. The incorporation of maleic anhydride-grafted compounds enhanced the tensile strength of wastes by 13–25%. The use of more ductile compatibilizers—ethylene-vinyl acetate and paraffin increased the elongation at break by 55–64%. The presence of compatibilizers also reduced the stiffness of materials resulting from the presence of solid particles. It was particularly emphasized for styrene-ethylene-butadiene-styrene and ethylene-vinyl acetate copolymers, which caused up to a 20% drop of Young’s modulus. Such effects may facilitate the further applications of analyzed wastes, e.g., in polymer film production. Thermal performance was only slightly affected by compatibilization. It caused a slight reduction in polyethylene melting temperatures (up to 2.8 °C) and crystallinity degree (up to 16%). For more contaminated materials, the addition of compatibilizers caused a minor reduction in the decomposition onset (up to 6 °C). At the same time, for the waste after three washing cycles, thermal stability was improved. Moreover, depending on the desired properties and application, materials do not have to go through the whole recycling line, simplifying the process, reducing energy and water consumption. The presented results indicate that it is possible to efficiently use the materials, which do not have to undergo the whole recycling process. Despite the presence of impurities, they could be applied in the manufacturing of products which do not require exceptional mechanical performance.
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Sheail, John. "Town wastes, agricultural sustainability and Victorian sewage." Urban History 23, no. 2 (1996): 189–210. http://dx.doi.org/10.1017/s0963926800011925.

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In analysing the practicability of Victorian proposals to dispose of urban wastes, valuable insights may be gained from the commentaries of agriculturalists and their scientific advisers. The paper reconstructs the debate as to how the sewage of towns and cities might be transferred to farmland, the developing concepts of sewage farming and the ‘sewage farm’, the increasing disillusionment of farmers with sewage irrigation and, finally, the acknowledgement by the turn of the century that the recycling of such wastes was irrelevant to the needs of town and country alike.
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Chong, Calvin. "Experiences with the utilization of wastes in nursery potting mixes and as field soil amendments." Canadian Journal of Plant Science 79, no. 1 (1999): 139–48. http://dx.doi.org/10.4141/p97-144.

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The nursery/landscape industry has been one of the fastest growing agricultural sectors in Canada. Since 1980s, the Ornamental Nursery Research Program at the Horticultural Research Institute of Ontario (HRIO) has been conducting research which focuses on environmentally friendly production practices. Emphasis is on the use of composted or uncomposted organic wastes as amendments in container potting mixes. Various projects have evaluated mixes derived from wastes such as spent mushroom compost, paper mill sludge, apple pomace, and various types of barks. In the late 1980s and early 1990s, the scope of the research expanded to include composting and a wider assortment of wastes such as waxed corrugated cardboard, municipal solid waste compost, wood chips from pallets and furniture and demolition wastes, food wastes, and organic fertilizers manufactured from meat by-products, and selected industrial wastes. Presently, paper mill sludge is being evaluated as field soil amendment for growing nursery shade trees and also for use in rehabilitating marginal, non-agricultural land. Key words: Waste recycling, land rehabilitation, composts, organic wastes, container culture, shade tree culture, ornamentals, nutrition
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Roushdy, M. H. "Recycling of Cullet, Waste Clay Bricks and Wastes Resulted from Wheat and Sugarcane Cultivations in the Manufacture of Fired Clay Bricks." WSEAS TRANSACTIONS ON ENVIRONMENT AND DEVELOPMENT 17 (March 16, 2021): 192–200. http://dx.doi.org/10.37394/232015.2021.17.19.

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The agriculture wastes are considered as a big environmental problem. The main purpose of this research is to determine the possibility of producing fired clay bricks from a mixture of agriculture wastes in addition to other wastes. The first type of wastes is the cullet while the second type is the wastes is the waste clay bricks (Homra) and the third is an agricultural residue obtained from wheat and sugarcane cultivation. The first step of the experimental work is performing XRF and sieve analysis for raw materials. Brick samples with Cubic shape with dimensions 50 × 50 × 50 mm3 were formed by 1 MPa dry pressing then drying at 120 oC overnight. Tile samples were fired at temperatures of 850 oC for 15 min soaking time. Water absorption, apparent porosity, and mechanical properties were determined and compared to ES 4763 / 2006 and ASTM C 62 / 2013 standards. According to the previous experimental work, it was found that the samples that has a composition (38 % Desert clay, 20% Homra, 10% cullet, 15% Wheat ash straw, 17% sugarcane) has the optimum properties with respect to ES 4763 / 2006 and ASTM C 62 / 2013 standards.
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Rautaray, Sachin Kanta, Rachana Dubey, Sachidulal Raychaudhuri, et al. "Sustainable agriwaste management at farm level through self-reliant farming system." Waste Management & Research: The Journal for a Sustainable Circular Economy 38, no. 7 (2020): 753–61. http://dx.doi.org/10.1177/0734242x20920350.

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Annually 500 M t organic wastes are produced in India from the agriculture sector. Transportation of bulky organic manures for centralized collection, processing and distribution to farms is cost prohibitive. Hence, recycling of agricultural wastes using vermicompost technology at the farm level is a practical way of managing agriwaste for meeting the plant nutrient requirement. Our experience with a 1.584 ha farm for three years (2015–2016 to 2017–2018) revealed that 8.1 t vermicompost was produced in three batches from 24 t agriwastes produced within the farm area. The system productivity by recycling these farm generated agriwastes and run-off water was 18.05 t (≈11.4 t ha−1) rice equivalent yield which was higher by 2.6 times as compared to rice fallow (4.46 t ha−1). Also, the net return from this system (Indian rupees 70141 ha−1) was higher by 2.3 times, after considering the fixed cost towards construction of a water recycling pond. An increase in carbon stock in soil for the four years study period was 0.66 Mg ha−1 year−1 with the agriwaste recycling system under organic nutrition. For the inorganic fertilizer plot, the increase in carbon stock was 0.53 Mg ha−1 year−1. A decrease in bulk density from 1.56 to 1.46 Mg m−3, increase in water holding capacity from 0.43 to 0.52 cm3 cm−3 and increase in available P and K content in soil from 38.0 and 174.7 kg ha−1 to 45.8 and 186.5 kg ha−1, respectively, were noted. Thus, recycling of agricultural waste at the farm level is useful in improving soil health and crop productivity.
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El Hweity, Mouhamed, Galila Darwish, Bakr A, Abd Elhamid A, and Osama mohamed. "FARMERS’ GUIDANCE FOR RECYCLING AGRICULTURAL WASTES TO PRODUCE ANIMAL FEED." Journal of Environmental Studies and Researches 6, (E2) (2017): 226–41. http://dx.doi.org/10.21608/jesr.2017.57418.

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Hsu, Esher. "Cost-benefit analysis for recycling of agricultural wastes in Taiwan." Waste Management 120 (February 2021): 424–32. http://dx.doi.org/10.1016/j.wasman.2020.09.051.

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Dissertations / Theses on the topic "Recycling of agricultural wastes"

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Angadam, Justine Oma. "Tertiary biovalorisation of Grape pomace." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2836.

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Thesis (Masters of Environmental Health)--Cape Peninsula University of Technology, 2018.<br>In the Western Cape, South Africa and other regions globally, grape pomace (GP) is one of the abundant agro-waste from the winery industry. This study reports on the hyper-extraction of fermentable sugars from GP treated with white rot fungi (WRF) Phanerochaete chrysosporium BKMF 1767 to facilitate improved biovalorisation for total reducing sugars (TRS) extraction in conjunction with Nepenthes mirabilis digestive fluids. TRS were quantified using the 3,5-dinitrosalicylic acid (DNS) reagent method. The free readily dissolvable sugars from the GP recorded for the bio-treated (BT) samples was 206.39 ± 0.06 mg/L and for the untreated (UT) samples was 271.05 ± 0.02 mg/L. Overall, the TRS yield for the Bio-treated (BT) and untreated (UT) samples was recorded as 205.68 ± 0.09 and 380.93 ± 0.14 mg/L, respectively, using hot water pretreatment (HWP) with 2266.00 ± 0.73 (BT) and 2850.68 ± 0.31 mg/L (UT), respectively, for dilute acid pretreatment (DAP); with 2068.49 ± 6.02 (BT) and 2969.61 ± 8.054 mg/L (UT) respectively, using the cellulase pretreatment (CP) method. Using the HWP as a reference, the relative increases imparted by the biotreatment was higher (51%) for DAP and low (33%) for CP. The combination of conventional used pre-treatment methods (hot water pretreatment, dilute acid pre-treatment, and cellulase pre-treatment) in a single pot system was also done while monitoring the total residual phenolics (TRPCs) in the samples. Furthermore, powder X-ray diffraction (pXRD) were used to measure the crystallinity index (CrI) and functional groups of pre- and post-pretreated GP to ascertain the efficiency of the pre-treatment methods, with quantification of lignin, holocellulose, and ash. Overall, the TRS yield for N. mirabilis pre-treated agro-waste was 951 mg/L ± 4.666 mg/L, with biomass having a lower CrI of 33%, and 62% residual lignin content. Furthermore, reduced TRPCs were observed in hydrolysate, suggesting limited inhibitory by-product formation during N. mirabilis pre-treatment
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Schumann, Dolf. "A feasibility study of a CDM compliant small-scale biomass gasification electricity generation project at a Western Cape wine cellar." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/14633.

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Thesis (MBA)--Stellenbosch University, 2008.<br>ENGLISH ABSTRACT: The goal of this study was to investigate the feasibility of a small-scale biomass gasification system within the context of a cooperative wine cellar operation in the Western Cape of South Africa. Central to this goal was the questions whether the time for the implementation of such small-scale renewable energy technologies in South Africa has arrived, in light of the status quo which has changed drastically from the days of abundant and cheap coal-based electricity, and whether the new opportunities afforded by the CDM can help foster financial feasibility. There are various macro-drivers contributing to the current-day emphasis on renewable energy and cogeneration projects. The first and most pressing driver is the global climate change imperative, while the others include the increased aspiration of countries towards energy security, the realization of the importance of sustainable development and the subsequent renewable energy policies that falls within the ambit of sustainable development. Small-scale biomass gasification technology still poses some challenges, particularly when it comes to the gasification of agricultural residues, as with grape residues in the case of this project. The most important technical feasibility problem to overcome is the low ash agglomeration temperature of grape residues reported in the literature. Although the local equipment manufacturer foresees no problem in this regard with their system design - since they have conducted tests on sunflower seed residues, which have similar ash properties, without experiencing any agglomeration problems - the seriousness of this aspect will be confirmed during pilot trials. In order to be eligible for emissions reduction trading under the CDM, the project must adequately demonstrate that the emissions reductions are additional to the business-as-usual scenario, in both the environmental and financial sense. The project will satisfy the environmental additionality requirement, since in its absence the wine cellar will continue its full reliance on coal-based electricity from the grid. Financial additionality, in its strictest sense, requires for the project to be infeasible if it does not pursue CDM participation, which the financial feasibility modeling results indicated to be true in this case. A feasibility model was developed to - subject to the input parameter values assumed and basic assumptions made - be able to assess the financial viability of the project. The main assumptions were that the private feed-in into the national electricity grid was available to all IPPs, in spite of the fact that in its Medium Term Power Purchase Program me (MTPPP) of May 2008 Eskom had only requested expressions of interest from IPPs that had a generating capacity of 5MW and higher to install private base load capacity. This assumption is commensurate with the country's renewable energy targets and the official government aim of achieving a 30% contribution from IPPs to the national electricity mix. The second assumption was that the 65 to lOOclkWh offered by Eskom in its MTPPP will be applicable to sub-SMWe IPPs as well (Creamer, 2008), and that this lower bound electricity price of 65clkWh can be applied over the whole project lifetime. Inherent to this assumption is the further supposition that the progressive decline of electricity prices to an eventual level of 35clkWh by 2018 foreseen by Eskom will not materialize, due both to the sustained pressure an expanding South African economy will put on the considerable but time-consuming supply-side initiatives launched by Eskom, and the likelihood for price premiums to be introduced for clean electricity in order to meet the country's renewable energy targets. From the assumed input parameter values the initial capital and COM expenditures, operating revenues and costs over the project lifetime were determined, and then used to calculate the net cash flows, where after the NPV was computed to serve as the deciding criterion on financial feasibility. A discount rate of 18% was assumed, corresponding with the subjectively judged risks that the project posed as a small-scale renewable energy system within the wine cellar operations. In the case where the project excluded all CDM aspects, the NPV was negative at - ZAR342 573, but this improved to ZAR325 193 if the project participated in the CDM. Thus it was concluded that the project will only be financially feasible if it includes CDM participation, and that this positive contribution can be leveraged by pursuing a programmatic CDM approach. This entails the development of this project as part of a larger program in which similar projects are implemented as they arise, up to the official UN limit of 15MWe in total to still qualify as a small-scale program. The nature of the assumptions that form the backbone of this study indicate that the positive financial feasibility result in the case where the project includes COM participation will become practically relevant only over the short- to medium-term as these assumptions become reality in South Africa. Therefore, although the time for such small-scale renewable energy projects has clearly not arrived as yet, it would seem that it is indeed around the corner.<br>AFRIKAANSE OPSOMMING: Die mikpunt van die navorsing was om die lewensvatbaarheid van 'n klein-skaal biomassa vergassing sisteem binne die konteks van 'n kooperatiewe wynkelder in die Wes-Kaap van Suid-Afrika te ondersoek. 'n Sentrale aspek was die vrae of die tyd aangebreek het om klein-skaal volhouhare energie projekte in Suid-Afrika tot uitvoering te bring, gesien in die lig van 'n status quo wat drasties weg beweeg het van die tydperk toe elektrisiteit volop en goedkoop was, en of die geleentheid wat die CDM bied sulke projekte finansieel lewensvatbaar kan maak. Daar is verskeie eksterne makro-drywers wat bydrae tot die huidige fokus op sulke volhoubare energie projekte. Hieronder tel globale klimaatsverandering as die dringendste drywer, terwyl die res onder andere die hernuwe strewe van lande tot verbeterde energie-sekuriteit, die besef van die belangrikheid van volhoubare ontwikkeling en die daaropvolgende volhoubare energie beleid stappe insluit. Daar bestaan nog etlike tegniese uitdagings tot die toepassing van klein-skaal biomassa vergassing tegnologie, spesifiek met betrekking tot die vergassing van afval landbou byprodukte, soos wat die geval is met druiwe afval in hierdie projek. Die belangrikste tegniese uitvoerbaarheids-aspek wat aandag verg is die lae smeltpunt van druifafval-as wat in die literatuur rapporteer word. Alhoewel die plaaslike toerustings-vervaardiger nie enige probleme in hierdie verhand voorsien nie, aangesien toetse met sonneblom afval - met as-eienskappe rofweg identies aan die van druiwe-afval - geen smelting van die as getoon het nie, sal dit tog nogsteeds aan verdere toetse onderwerp word. Vir die projek om te kwalifiseer as geskik vir verhandeling in kweekhuisgas vermindering deur middel van die COM, moet dit voldoende bewys kan word dat alle uitlaatgas vermindering addisioneel is tot wat die geval sou wees in die gewone gang van besigheid. Hierdie addisionaliteit is relevant in beide 'n omgewings- en finansiele sin. Hierdie projek sal orngewings-addisionaliteit bevredig deurdat die wynkelder in sy afwesigheid volkome afhanklik van die steenkool-gebaseerde elektrisiteit vanaf die nasionale netwerk sou bly, terwyl finansiele addisionaliteit bewys is deur die finansiele lewensvatbaarheids-model wat getoon het dat die projek slegs ekonomies uitvoerbaar sal wees indien dit CDM deelname insluit. Die lewensvatbaarheids-model is ontwikkel om die ekonomiese uitvoerbaarheid van die projek te evalueer, onderworpe aan die aangenome inset parameter waardes en basiese aannames in die studie. Die hoof-aanname was naamlik dat privaat terugvoer in die nasionale elektrisiteits-netwerk vir alle grootte IPPs moontlik is, ten spyte van die feit dat Eskom se MTPPP van Mei 2008 slegs kapasiteite van 5MW en groter aanvaar bet. Hierdie aanname is gebaseer op Suid-Afrika se volhoubare energie teikens en die regering se offisiele mikpunt om 30% van alle krag-voorsiening vanaf IPPs te bekom. Die tweede hoof-aanname was dat die 65 tot 100clkWh wat Eskom in sy MTPPP aangebied het, ook van toepassing sal wees op sub-SMW IPPs (Creamer, 2008), en dat die laer prys-limiet van 65c/kWb oor die hele projek-leeftyd toegepas kon word. Inherent tot hierdie aanname is die verdere veronderstelling dat die progressiewe daling in elektrisiteits-pryse tot 'n eventuele vlak van 35clkWh voorsien deur Eskom nie sal realiseer nie, beide as gevolg van die volgehoue druk wat die groeiende Suid-Afrikaanse ekonomie op die aansieniike, maar tydrowende, opwekkings-kapasiteit uitbreidings van Eskom behoort te plaas, en ook die hoe waarskynlikheid dat prys premiums vir skoon elektrisiteit ingestel word sodat Suid-Afrika sy volboubare energie telkens kan bereik. Die aanvanklike kapitaal en CDM uitgawes, en bedryfsuitgawes en - inkomstes oor die projekleeftyd is vanaf die aangenome inset parameter waardes afgelei, waarop die NPV van die projek uitgewerk is om te dien as die beslissende maatstaf van ekonomiese haalbaarheid. 'n Diskontokoers van 18% is gebruik, ooreenstemmend met die subjektief beraamde risikos wat die projek inhou as 'n klein-skaal volhoubare energie sisteem. Die resultate van die finansiele lewensvatbaarheids-model het getoon dat in die geval waar die projek geen CDM aspekte bevat nie, die NPV hoogs negatief sou wees met 'n waarde van -ZAR342 573, terwyl dit verbeter na ZAR325 193 as die projek CDM deelname insluit. Die gevolgtrekking is dus gemaak dat die spesifieke projek slegs ekonomies haalbaar sal wees indien dit wel CDM deelname insluit, en dat hierdie positiewe finansiele bydrae van die CDM geoptimaliseer kan word deur 'n programmatiese CDM benadering te volg. Dit behels die ontwikkeling van die projek as deel van 'n groter program waarin soortgelyke projekte mettertyd geimplementeer word soos hulle ontstaan, tot by die offisiele VN limiet van 15MWe om sodoende nog te kwalifiseer as 'n algehele klein-skaalse program. Die aard van die hoof-aannames in hierdie studie is indikatief dat die positiewe finansiele lewensvatbaarheid in die geval waar die projek CDM deelname insluit, eers oor die kort- tot medium-termyn prakties relevant sal word soos die aannames bevredig word. Dus, alhoewel die era van klein-skaalse volhoubare energie projekte nog nie aangebreek het in Suid-Afrika nie, lyk dit tog asof dit om die draai is.
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Costa, Antonio Marcos Tubiana de. "Codigestão anaeróbia de resíduos bovinos e suínos: caracterização química e produção de biofertilizante para uso em cultura de milho." Universidade Tecnológica Federal do Paraná, 2014. http://repositorio.utfpr.edu.br/jspui/handle/1/1116.

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Ao abordar o tema contaminação ambiental, logo se recorda a quantidade de resíduos domésticos e urbanos, que são gerados nas cidades e metrópoles, os quais muitas vezes não recebem nenhum tipo de tratamento. Porém, problemas de contaminação ambiental também estão vinculados à agricultura, onde são gerados resíduos orgânicos com elevados potenciais poluidores. Dessa forma, o projeto objetivou estudar o processo de codigestão anaeróbia de dejetos bovinos e suínos oriundos de sistemas de produção de suínos e atividade pecuária leiteira, como alternativa para tratamento destes tipos de matrizes, além de investigar a eficiência do biofertilizante produzido a partir das matrizes de resíduos em cultura de milho. Para isso, se coletaram amostras de dejetos de bovinos e suínos para caracterização e posterior utilização nos ensaios com tratamentos diferentes. Na sequência se fez a preparação das amostras para os ensaios utilizando-se de inoculos diferenciados (in natura, inoculo da rede de saneamento básico e inoculo isolado de dejeto bovino) com o propósito de avaliar a degradação dos dejetos via codigestão anaeróbia. Em cada ensaio citado se fizeram vinte tratamentos, via planejamento fatorial 2³, com seis pontos centrais, sendo as variáveis de entrada: tempo, fração de sólidos e razão de mistura; e as variáveis respostas (dependentes): pH, razão AV/AL, umidade, série de sólidos, razão SV/ST, redução de sólidos totais, DQO, redução de DQO, nitrogênio total, fósforo e potássio. Fez-se depois o estudo cinético do processo, se utilizando do ensaio in natura com proporção de mistura de 75% em dejeto suíno e 25% em dejeto bovino, com fração de sólidos de 8,9%, mediante Teste de Tukey. Após a estabilização da biomassa utilizada, fez-se a aplicação do biofertilizante em cultura de milho, comparando-se com fertilizante comercial (ureia), verificando-se o crescimento e desenvolvimento desta cultura. No planejamento fatorial se concluiu mediante análise de Tukey e considerando a importância de cada variável resposta que o ensaio in natura apresentou as melhores condições operacionais, pois se teve o maior número de variáveis respostas sendo consideradas satisfatórias, como razão AV/AL, razão SV/ST e redução da DQO. Observou-se durante o estudo cinético que a biomassa apresentou estabilização próxima aos vinte dias de tratamento, indicando a degradação orgânica dos dejetos em codigestão e produção de biofertilizante, o qual é mais estável e menos poluente ao ambiente, sendo utilizado como opção no processo de fertilização de culturas agrícolas como o milho. No que diz respeito à utilização do biofertilizante (40 kg.ha-1), notou-se semelhança deste se comparado à ureia (40 kg.ha-1) para o cultivo de milho, podendo ser uma alternativa interessante de destinação dos dejetos, diminuindo a poluição ambiental causada pelo manejo inadequado.<br>When discussing environmental contamination, just remember the amount of domestic and urban waste that are generated in towns and cities, which often do not receive any treatment. However, problems of environmental contamination are linked to agriculture, where organic waste with high potential polluters is generated. This way, the project had the objective of studying the anaerobic codigestion process of cattle and pig waste from the swine production systems and dairy farming activity, as an alternative to the treatment of these kinds of matrices, as well as to investigate the efficiency of biofertilizer matrices produced from the waste in cultured maize. For this, samples of manure from cattle and pigs were collected for characterization and subsequent use in the tests with different treatments. Then, the preparation of samples for the tests using the different inocula were made (in natura, inoculum of sanitation and inoculum isolated from bovine manure), in order to evaluate the degradation of waste via anaerobic codigestão. In each test mentioned twenty treatments were made, via 2³ factorial design with six central points, where the input variables: time, fraction of solids and mixing ratio; and the response variables (dependent): pH, ratio AV/AL, moisture, solids, ratio SV/ST, reduction of total solids, COD, reduction of COD, total nitrogen, phosphorus and potassium. It was made after the kinetic study of the process, using the test in natura mix ratio of 75% in swine manure and 25% in cattle manure with solid fraction of 8.9% by the Tukey test. After stabilization of the biomass used, there was the application of biofertilizers in crop maize compared with commercial fertilizer (urea), verifying the growth and development of this culture. In factorial design was completed by Tukey analysis and considering the importance of each variable response that the test in natura presented the best operating conditions, because it had the largest number of variable responses being considered satisfactory ratio as AV / AL, ratio SV / ST and COD reduction. It was observed during the kinetic study that biomass showed stabilization next to twenty days of treatment, indicating the degradation of organic waste in codigestão and biofertilizer production, which is more stable and less polluting to the environment, being used as an option in process fertilization of agricultural crops such as maize. Regarding the use of biofertilizers (40 kg.ha-1), this similarity was noted compared to urea (40 kg.ha-1) for the cultivation of maize and it may be an interesting alternative for allocation of waste, reducing environmental pollution caused by improper handling.
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Normand, Luc. "Recycling of agro-industrial food wastes into feed for Pekin duck meat production towards a sustainable agriculture in the Province of Quebec." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0004/MQ29759.pdf.

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Mbeng, Lawrence O. "The impact of public attitudes and behaviour on the effective valorisation of household organic waste into agricultural compost : case study Limbe and Douala - Cameroon." Thesis, University of Northampton, 2009. http://nectar.northampton.ac.uk/2834/.

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Building on the development of a research agenda, the research used best practices in the UK and other developed countries to design the aims and objectives from which the methods were developed. Based on the research agenda, trends in household behaviour in Cameroon were examined in order to identify, and generate baseline information to provide a sound evidence base essential for robust policy development in education, capacity building in composting involving the third sector organizations in Cameroon. To determine attitudes, Q methodology was used. Factor analysis produced nine and eight factors representing distinct behavioural patterns of public concerns, opinions and beliefs in household waste management in Douala and Limbe. Interpreting these factors revealed 12 attitudes to household waste management practices and this will be used to design strategies. A waste composition analysis found the organic fraction >60% with the lowest per capita waste generation (0.86 kg) in the high income residential area (HIRA) and the highest (1.38 kg) in the low income residential area (LIRA) of Douala in the wet season. In the dry season, the medium income residential area (MIRA) had the highest (1.11 kg) with the lowest (0.71 kg) in the HIRA. For both seasons in Limbe, HIRA had the highest while the LIRA had the lowest. Pearson correlation and regression was used to show the relationship between waste generation and household size. The research determined barriers and success factors for composting as part of a strategy. Barriers included household hazardous waste (HHW) and odour at composting sites because more than 50% of the composted waste was food waste with high humidity especially in the wet season. This affected public acceptance to composting. A success factor is that the market for compost is increasing and is expected to increase to 30% by 2013. Added to this, more than 50% of the participating households showed positive intentions and willingness to composting. Hence, composting is expected to be a major economic activity for Cameroonians and become a national practice
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Johnson, Hailey E. "Co-utilisation of microalgae for wastewater treatment and the production of animal feed supplements." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1003999.

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Microalgae have a variety of commercial applications, the oldest of which include utilisation as a food source and for use in wastewater treatment. These applications, however, are seldom combined due to toxicity concerns, for ethical reasons, and generally the requirement for cultivation of a single algae species for use as a feed supplement. These problems might be negated if a “safer” wastewater such as that from agricultural and/or commercial food production facilities were to be utilised and if a stable algae population can be maintained. In this investigation preliminary studies were carried out using an Integrated Algae Pond System (IAPS) for domestic wastewater treatment to determine the species composition in the associated High Rate Algae Ponds (HRAPs). The effect of different modes of operation, continuous versus batch, on nutrient removal, productivity and species composition was also investigated. Furthermore, indigenous species in the HRAP were isolated and molecularly identified as, Chlorella, Micractinium, Scenedesmus and Pediastrum. Additionally, the effect of the nor amino acid, 2-hydroxy-4-(methylthio)-butanoic acid (HMTBA) and its Cu-chelated derivative, on the growth and biochemical composition of Chlorella, Micractinium, Scenedesmus, Pediastrum and Spirulina was investigated. Species composition in the HRAP was stable under continuous operation with Micractinium dominating > 90% of the algae population. Under batch operation the population dynamic shifted; Chlorella outcompeted Micractinium possibly due to nutrient depletion and selective grazing pressures caused by proliferation of Daphnia. Higher species diversity was observed during batch mode as slower growing algae were able to establish in the HRAP. Nutrient removal efficiency and biomass productivity was higher in continuous mode, however lower nutrient levels were obtained in batch operation. HMTBA did not significantly affect growth rate, however treatment with 10 mg.L-1 resulted in slightly increased growth rate in Micractinium and increased final biomass concentrations in Chlorella, Micractinium and Spirulina (although this was not statistically significant for Micractinium and Spirulina), which are known mixotrophic species. Algae treated with Cu-HMTBA, showed reduced final biomass concentration with 10 mg.L-1, caused by Cu toxicity. Biochemical composition of the algae was species-specific and differed through the growth cycle, with high protein observed during early growth and high carbohydrate during late growth/early stationary phase. Additionally, 0.1 mg.L-1 HMTBA and Cu-HMTBA significantly reduced protein content in Chlorella, Micractinium, Scenedesmus and Pediastrum. In conclusion, operation of the HRAP in continuous culture provided suitable wastewater treatment with high productivity of an ideal species, Micractinium, for use in animal feed supplementation. This species had 40% protein content during growth (higher than the other species tested) and dominated the HRAP at > 90% of the algae population during continuous mode. Addition of HMTBA (> 1 mg.L-1) to algae cultivation systems and those treating wastewater, has the potential to improve productivity and the value of the biomass by enhancing protein content. Overall, the co-utilisation of microalgae for wastewater treatment and the generation of a biomass rich in protein, for incorporation into formulated animal feed supplements, represents a closed ecosystem which conserves nutrients and regenerates a most valuable resource, water.
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Aissa, Khaled Omer Salem. "Recycling of Construction and Demolition Wastes (CDW)." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Due to urban expansion and what it results as construction and demolition waste specially in the big cities we had to deal with this wastes and put it in the right process to take advantage of them once again as a row materials. This study aim to clarify the recycling methods of the construction and demolition wastes and also discuss the environmental and economic influence by presenting several studies in different countries shows the quantities of their wastes and its recycled percentage. As well as we discussed the challenges that can be faced during the waste recycling process specially if that was done in a densely settled cities where necessary to take into account the possible problems that can happen within the demolition stage and during the transportation of the wastes from the demolition site to the treatment facility. Also it has been explained which is the perfect paths that can be followed to gain the highest recycled percentage and how it is possible to have the maximum benefit of the materials produced from that process.
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Shen, Huiting. "Separation of solid wastes for recycling and utilization /." Luleå, 2003. http://epubl.luth.se/1402-1544/2003/41.

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Cheung, Yan Priscilla. "An analysis of Hong Kong's recycling policy." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21037929.

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Lau, Kin-wah. "Management, disposal and recycling of waste organic solvents in Hong Kong /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19945139.

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Books on the topic "Recycling of agricultural wastes"

1

United States. Natural Resources Conservation Service. Recycling protects our natural resources. USDA Natural Resource[s] Conservation Service, 1997.

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United States. Agricultural Research Service. Agricultural utilization of municipal, animal and industrial wastes: Draft. U.S. Dept. of Agriculture, Agricultural Research Service, 1993.

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Huan jing you hao xing nong ye mo shi yu ji shu: Huanjing youhaoxing nongye moshi yu jishu. Hua xue gong ye chu ban she, 2010.

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International CIEC Symposium (10th 1996 Braunschweig-Völkenrode, Germany). Recycling of plant nutrients from industrial processes: 10th International CIEC Symposium, 1996, December 9-11, Federal Agricultural Research Centre, Braunschweig-Völkenrode : proceedings. International Scientific Centre of Fertilizers, 1997.

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Zhongguo nong ye fa zhan mo shi chuang xin yu nong ye xian dai hua: Zhongguo nongye fazhan moshi chuangxin yu nongye xiandaihua. Zhongguo kuang ye da xue chu ban she, 2011.

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Lugembe, P. Use of agricultural and industrial waste for building purposes. Building Research Unit, 1985.

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American Society of Agricultural Engineers., ed. Agricultural and food processing wastes: Proceedings of the Sixth International Symposium on Agricultural and Food Processing Wastes, December 17-18, 1990, Hyatt Regency Chicago in Illinois Center, Chicago, Illinois. American Society of Agricultural Engineers, 1990.

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North Carolina. General Assembly. Legislative Research Commission. Agribusiness plant variance: Report to the 1989 General Assembly of North Carolina, 1990 session. The Commission, 1990.

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North Carolina. General Assembly. Legislative Research Commission. Agribusiness plant variance: Report to the 1991 General Assembly of North Carolina, 1991 session. The Commission, 1991.

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Japan, ed. Kaitei Kaisetsu Shokuhin risaikuru-hō. 2nd ed. Taisei Shuppansha, 2008.

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Book chapters on the topic "Recycling of agricultural wastes"

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Chen, Yona, Yossi Inbar, Benny Chefetz, and Yitzhak Hadar. "Composting and recycling of organic wastes." In Modern Agriculture and the Environment. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5418-5_28.

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Amdeha, Enas. "Recovery of Nanomaterials from Agricultural and Industrial Wastes for Water Treatment Applications." In Waste Recycling Technologies for Nanomaterials Manufacturing. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68031-2_14.

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Seaf El-Nasr, Tarek A., Hassanien Gomaa, Mohammed Y. Emran, Mohamed M. Motawea, and Abdel-Rahman A. M. Ismail. "Recycling of Nanosilica from Agricultural, Electronic, and Industrial Wastes for Wastewater Treatment." In Waste Recycling Technologies for Nanomaterials Manufacturing. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68031-2_12.

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Smith, J. H., and J. R. Peterson. "Recycling of Nitrogen Through Land Application of Agricultural, Food Processing, and Municipal Wastes." In Nitrogen in Agricultural Soils. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr22.c21.

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Thangalazhy-Gopakumar, Suchithra, and Sushil Adhikari. "Fast Pyrolysis of Agricultural Wastes for Bio-fuel and Bio-char." In Recycling of Solid Waste for Biofuels and Bio-chemicals. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0150-5_11.

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Öngen, Atakan, Nazlıcan Karabağ, Selda Yiğit Hunce, Hüseyin Kurtuluş Özcan, Emine Elmaslar Özbaş, and Serdar Aydın. "An Assessment of Pyrolysis Process for the Treatment of Agricultural and Forest Wastes." In Recycling and Reuse Approaches for Better Sustainability. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95888-0_9.

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Wassenaar, Tom, François Dumoulin, Jean-Luc Farinet, et al. "Agricultural Organic Waste Recycling to Reduce Greenhouse Gas Emissions." In Climate Change and Agriculture Worldwide. Springer Netherlands, 2015. http://dx.doi.org/10.1007/978-94-017-7462-8_13.

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El-Salamony, Radwa A., and Asmaa M. El Shafey. "Extraction of Silica and Lignin-Based Nanocomposite Materials from Agricultural Waste for Wastewater Treatment Using Photocatalysis Technique." In Waste Recycling Technologies for Nanomaterials Manufacturing. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68031-2_13.

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Schulz, R., and V. Römheld. "Recycling of municipal and industrial organic wastes in agriculture: benefits, limitations, and means of improvement." In Plant Nutrition for Sustainable Food Production and Environment. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-0047-9_184.

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Joyce, Alyssa, Simon Goddek, Benz Kotzen, and Sven Wuertz. "Aquaponics: Closing the Cycle on Limited Water, Land and Nutrient Resources." In Aquaponics Food Production Systems. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15943-6_2.

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AbstractHydroponics initially developed in arid regions in response to freshwater shortages, while in areas with poor soil, it was viewed as an opportunity to increase productivity with fewer fertilizer inputs. In the 1950s, recirculating aquaculture also emerged in response to similar water limitations in arid regions in order to make better use of available water resources and better contain wastes. However, disposal of sludge from such systems remained problematic, thus leading to the advent of aquaponics, wherein the recycling of nutrients produced by fish as fertilizer for plants proved to be an innovative solution to waste discharge that also had economic advantages by producing a second marketable product. Aquaponics was also shown to be an adaptable and cost-effective technology given that farms could be situated in areas that are otherwise unsuitable for agriculture, for instance, on rooftops and on unused, derelict factory sites. A wide range of cost savings could be achieved through strategic placement of aquaponics sites to reduce land acquisition costs, and by also allowing farming closer to suburban and urban areas, thus reducing transportation costs to markets and hence also the fossil fuel and CO2 footprints of production.
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Conference papers on the topic "Recycling of agricultural wastes"

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Constantinescu, Rodica Roxana, Gabriel Zainescu, and Iulia Caniola. "Smart biopolymers from protein wastes used in agriculture." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.iv.4.

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The area of interest is the synthesis and study of properties of new types of hydrogels made from pelt waste, in order to recover waste from tanneries. The complex aspects related to protein projects in the leather industry are addressed by accurately determining a chemical composition, a skin designer and a different possibility of recovery and claiming a value, the use of biotechnology. The complex aspects related to protein waste in the leather industry are addressed by accurately determining the chemical composition of leather waste and the different possibilities of recovery and recycling using biotechnology. The technologies used in order to obtain a smart hydrogel based on collagen and natural polymers are non-polluting and waste-free. An important aspect to note is that the smart hydrogel is obtained through an almost identical technological process to the one used for medical collagen. An extensive study of the potential for reuse and recycling of leather protein waste in ecological conditions by developing innovative procedures for obtaining an NPK collagen matrix to be used successfully as smart fertilizer for modifying nutrient-poor soils. Hydrogels with collagen structure are characterized by a high-performance instrumental analysis system (FT-IR-ATR, SEM, EDAX, etc.).
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Hersh, Benjamin, and Amin Mirkouei. "Life Cycle Assessment of Pyrolysis-Derived Biochar From Organic Wastes and Advanced Feedstocks." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97896.

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Abstract Recent interest in reducing stress on the food-energy-water (FEW) nexus requires the use of renewable, organic products that can subsequently address environmental sustainability concerns, such as mitigating greenhouse gas emissions. Pyrolysis-derived biochar from organic wastes (e.g., nutrient-rich agricultural wastes and leftovers, forest harvest residues, and cattle manure) and advanced feedstocks (e.g., algae) is capable of addressing ever-increasing global FEW concerns. Biochar water-nutrient holding capacity and carbon sequestration are key attributes for improving organic farming and irrigation management. The major challenge to commercialize biochar production from organic wastes is the conversion process. Pyrolysis process is a cost-effective and successful approach in comparison to other conversion technologies (e.g., gasification) due to low energy requirement and capital cost, as well as high process efficiency and biochar quality. To determine the environmental impacts of the biochar production process, an analysis of the material, energy, and emission flows of a small-scale pyrolysis process is conducted for a real case study, using life cycle assessment method with the assistance of available life cycle inventory databases within OpenLCA software. The results demonstrate that this study is able to enhance sustainability aspects across FEW systems by (a) employing a portable refinery to address upstream challenges (i.e., collection, transportation, and preprocessing) of waste-to-biochar life cycle, (b) recycling domestic forest and agricultural residues (e.g., pine wood), (c) producing organic biochar-derived soil conditioners that can improve organic cropping and FEW systems. Ultimately, we conclude by discussing techno-economic and socio-environmental implications of biochar production from organic wastes and advanced feedstocks.
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Lavrentiev, A. A., V. V. Sidorkin, E. A. Gamoyunov, A. S. Rusaleev, and K. F. Kalmykova. "ENVIRONMENTAL EFFECT OF ECONOMIC WASTE MANAGEMENT." In STATE AND DEVELOPMENT PROSPECTS OF AGRIBUSINESS. DSTU-PRINT, 2020. http://dx.doi.org/10.23947/interagro.2020.1.224-228.

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The article explores ways of forming a modern concept of rational nature management of agricultural waste. The analysis of the nomenclature of agricultural waste was carried out, their influence on the environmental situation was studied. The modern technologies of rational nature management of agricultural waste are systematized, the most promising areas of waste recycling are identified. The ecological effect of the application of technologies for the rational environmental management of agricultural waste was studied.
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"CIGR Handbook of Agricultural Engineering, Volume II Animal Production & Aquacultural Engineering, Part I Livestock Housing and Environment, Chapter 6 Waste Management and Recycling of Organic Matter, Part 6.2 Recycling of Organic Matter." In CIGR Handbook of Agricultural Engineering Volume II Animal Production & Aquacultural Engineering. American Society of Agricultural and Biological Engineers, 1999. http://dx.doi.org/10.13031/2013.36331.

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"CIGR Handbook of Agricultural Engineering, Volume II Animal Production & Aquacultural Engineering, Part I Livestock Housing and Environment, Chapter 6 Waste Management and Recycling of Organic Matter, Part 6.1 Waste Management." In CIGR Handbook of Agricultural Engineering Volume II Animal Production & Aquacultural Engineering. American Society of Agricultural and Biological Engineers, 1999. http://dx.doi.org/10.13031/2013.36330.

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Kaščák, Patrik, and Lucia Knapčíková. "POSSIBILITIES OF MUNICIPAL WASTE RECOVERY IN GEOPOLYMERS: A STUDY." In GEOLINKS Conference Proceedings. Saima Consult Ltd, 2021. http://dx.doi.org/10.32008/geolinks2021/b2/v3/18.

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Growth in the production of industrial, agricultural and municipal waste is among growing global problems and it has recently reached very worrying levels. Solid waste arising from human activities significantly contributes to environmental pollution. The effort of the whole society is therefore its ecological, energy and economic recovery Hence, one of the possible uses is the incorporation of solid waste into geopolymer composites which are considered to be green material when compared to conventional Portland concrete. Geopolymers are nowadays referred to as green materials of the future and they consist of aluminosilicates activated by alkaline elements. Municipal solid waste can be used as an aggregate, precursor, filler, reinforcement which can have a positive impact on mechanical, physical or chemical properties of geopolymers. Geopolymer composites containing municipal waste have potential of application in the areas of concrete, noise and refractory materials, catalyst, adsorbent and many others. The present paper is an overview of scientific studies and research focused on the recycling and recovery of solid municipal waste in geopolymer composites together with the impact on the change of properties and their possible use.
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Schubert, Jim, and Konrad Fichtner. "Gasification/Cogeneration Using MSW Residuals and Biomass." In 13th Annual North American Waste-to-Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/nawtec13-3154.

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The City of Edmonton presently collects and processes about 230,000 tonnes of municipal solid waste (MSW) and recyclables per year at the composting and materials recovery facilities located at the Edmonton Waste Management Centre. Over 60% of the waste materials that are brought to the facilities are recycled and composted. Remaining residuals from both the composting and materials recovery facilities have little value in terms of being further recycled and are currently being landfilled. The residuals do have a significant calorific value and have the potential to produce enough electricity to provide 100% of the power and heating for facilities at the Edmonton Waste Management Centre (EWMC), with remaining energy for adjacent developments. The City is considering advanced thermal treatment (not conventional incineration) of the residual waste (after recycling and composting) as a way to close the loop in waste management in terms of minimizing waste materials that are landfilled and reducing the net energy requirement for waste processing and disposal to nil. Other renewable biomass waste streams (e.g.: wood or agricultural waste) could complement operation of the facility and make it more economically viable (economies of scale). There are also other environmental benefits such as reductions in the overall greenhouse gas (GHG) and other harmful emissions by displacement of fossil fuel as an energy source.
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RASHED SALAHAT, INAYAT. "Recycling the solid wastes." In المؤتمر العلمي الدولي العاشر. شبكة المؤتمرات العربية, 2019. http://dx.doi.org/10.24897/acn.64.68.404.

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Dousova, Barbora. "RECYCLING OF POWDERED BUILDING WASTES IN ENVIRONMENTAL TECHNOLOGIES." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019v/4.2/s05.017.

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Pribulova, Alena. "RECYCLING OF WASTES FROM CAST IRON CASTINGS PRODUCTION." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/4.1/s18.097.

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Reports on the topic "Recycling of agricultural wastes"

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Minin, V. B., V. V. Belyakov, and I. B. Uzhinova. INFORMATION SUPPORT FOR RECYCLING AGRICULTURAL WASTE IN THE BALTIC SEA REGION. Ljournal, 2020. http://dx.doi.org/10.18411/0123-5526-2020-01821.

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Heath, J. C., and B. Nelson. Recycling Spent Sandblasting Grit and Similar Wastes as Aggregate in Asphaltic Concrete. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada361266.

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Zhang, Lifeng, Anping Dong, and Lucas Nana Wiredu Damoah. Development of Solar Grade Silicon (SoG-Si) Feedstock by Recycling SoG-Si Wastes. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1060507.

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Parida, Umesh Kumar, Jogeswari Rout, and Gourisankar Roy. Nano Vermicomposting from Agricultural Wastes for Sustainable Organic Farming in Odisha. NEWREDMARS EDUCATION PVT LTD, 2018. http://dx.doi.org/10.28921/nrme.book.12.2018.1.35.

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Biomass Support for the China Renewable Energy Law: Feasibility Report -- Agricultural and Forestry Solid Wastes Power Generation Demonstration, December 2005. National Renewable Energy Laboratory (NREL), Golden, CO., 2006. http://dx.doi.org/10.2172/895252.

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