Relevant bibliographies by topics / Water pollutants. eng

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Water pollutants. eng'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Water pollutants. eng"

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Deryabkina, L. A., B. I. Marchenko, N. K. Plugotarenko, and A. I. Yukhno. "Assessing efficiency of pre-ammonization aimed at reducing carcinogenic risks caused by trihalomethanes in drinking water." Health Risk Analysis, no. 3 (September 2020): 70–77. http://dx.doi.org/10.21668/health.risk/2020.3.08.eng.

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In most Russian regions there is still a pressing issue related to providing population with high quality and safe drinking water. Up to now, chlorination has been the primary technique applied to disinfect drinking water as it is highly efficient, reliable, and relatively cheap. However, when chlorine is used to disinfect natural water that contains organic pollutants, it results in risks of by-products occurrence. These products are trihalomethanes, epigenetic carcinogenesis promoters that cause elevated carcinogenic risks under oral, inhalation, and subcutaneous exposure. Our research goal
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Boniardi, N., G. Vatta, R. Rota, G. Nano, and S. Carrà. "Corrigendum to “Removal of water pollutants by Lemna gibba” [Chem. Eng. J. 54 (1994) B41–B48]." Chemical Engineering Journal and the Biochemical Engineering Journal 57, no. 3 (1995): B49. http://dx.doi.org/10.1016/0923-0467(95)03019-0.

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Gardic, Vojka, Jelena Petrovic, Lidija Djurdjevac-Ignjatovic, Srdjan Kolakovic, and Svetlana Vujovic. "Impact assessment of mine drainage water and municipal wastewater on the surface water in the vicinity of Bor." Chemical Industry 69, no. 2 (2015): 165–74. http://dx.doi.org/10.2298/hemind140128031g.

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Mining and copper production in Bor, in the past hundred years, had a huge impact on the environment of town, but also in a wide region. In the area of Bor, in the zone of Mining and Smelting Company (RTB) activity, over 29,000 ha of land under forests and fields is degraded. The area of degraded agricultural land in the Bor municipality is over 60% of total agricultural land. Wastewater, generated in the sites of RTB Bor, pollute the Bor River and Krivelj River, which still flow into the Timok River and Danube River. These pollutions are often presented by low pH value, increased content of h
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Lim, Yu Jie, So Min Lee, Rong Wang, and Jaewoo Lee. "Emerging Materials to Prepare Mixed Matrix Membranes for Pollutant Removal in Water." Membranes 11, no. 7 (2021): 508. http://dx.doi.org/10.3390/membranes11070508.

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Various pollutants of different sizes are directly (e.g., water-borne diseases) and indirectly (e.g., accumulation via trophic transfer) threatening our water health and safety. To cope with this matter, multifaceted approaches are required for advanced wastewater treatment more efficiently. Wastewater treatment using mixed matrix membranes (MMMs) could provide an excellent alternative since it could play two roles in pollutant removal by covering adsorption and size exclusion of water contaminants simultaneously. This paper provides an overview of the research progresses and trends on the eme
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Gao, Xiaoping, Yao Zeng, Fangying Ji, and Lei Jiang. "Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China." Water 13, no. 6 (2021): 834. http://dx.doi.org/10.3390/w13060834.

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Water environment deterioration in urban environments is a critical concern in sustainable water management processes, and the method of urban water metabolism has not been developed more fully in this field. Therefore, there is a requirement to evaluate urban water metabolism with a focus on water quality for sustainable water use. In this study, information and network environ analyses in ecological network analysis (ENA) were explored to measure the water pollutant metabolism state. Six sub-basins in the old part of Fuzhou in China using data from 2016 and 2019 were selected for the case st
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Pittino, Francesca, Roberto Ambrosini, Roberto Azzoni, et al. "Post-Depositional Biodegradation Processes of Pollutants on Glacier Surfaces." Condensed Matter 3, no. 3 (2018): 24. http://dx.doi.org/10.3390/condmat3030024.

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Glaciers are important fresh-water reservoirs for our planet. Although they are often located at high elevations or in remote areas, glacial ecosystems are not pristine, as many pollutants can undergo long-range atmospheric transport and be deposited on glacier surface, where they can be stored for long periods of time, and then be released into the down-valley ecosystems. Understanding the dynamics of these pollutants in glaciers is therefore important for assessing their environmental fate. To this aim, it is important to study cryoconite holes, small ponds filled with water and with a layer
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Islam, Tariqul, Yanliang Li, and Hefa Cheng. "Biochars and Engineered Biochars for Water and Soil Remediation: A Review." Sustainability 13, no. 17 (2021): 9932. http://dx.doi.org/10.3390/su13179932.

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Biochars (BCs) are considered as ecofriendly and multifunctional materials with significant potential for remediation of contaminated water and soils, while engineered biochars (E-BCs) with enlarged surface areas and abundant surface functional groups can perform even better in environmental remediation. This review systematically summarizes the key physical and chemical properties of BCs that affect their pollutant sorption capacities, major methods employed for modification of E-BCs, the performance of BCs/E-BCs in removing major types of organic (e.g., antibiotics and pesticides) and inorga
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Székács, András, Mária Mörtl, and Béla Darvas. "Monitoring Pesticide Residues in Surface and Ground Water in Hungary: Surveys in 1990–2015." Journal of Chemistry 2015 (2015): 1–15. http://dx.doi.org/10.1155/2015/717948.

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Over 2000 surface, ground and raw drinking water samples have been analyzed in the frame of different monitoring projects in Hungary and watercourses in neighboring countries between 1990 and 2015. Effects of pesticide contamination on ecological farming and drinking water supply have been assessed. Main water pollutant ingredients of agricultural origin in Hungary are herbicides related to maize production. After EU pesticide re-registration, diazinon, atrazine, and trifluralin gradually disappeared as contaminants. High levels of water soluble pollutants (e.g., acetochlor) in surface water r
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Maniquiz, M. C., J. Y. Choi, S. Y. Lee, C. G. Kang, G. S. Yi, and L. H. Kim. "System design and treatment efficiency of a surface flow constructed wetland receiving runoff impacted stream water." Water Science and Technology 65, no. 3 (2012): 525–32. http://dx.doi.org/10.2166/wst.2012.869.

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This study reported the efficiency of a free water surface flow constructed wetland (CW) system that receives runoff impacted stream water from a forested and agricultural watershed. Investigations were conducted to examine the potential effect of hydraulic fluctuations on the CW as a result of storm events and the changes in water quality along the flow path of the CW. Based on the results, the incoming pollutant concentrations were increased during storm events and greater at the near end of the storm than at the initial time of storm. A similar trend was observed to the concentrations exiti
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Moxley, Karis, and Stefan Schmidt. "Isolation of a phenol-utilizing marine bacterium from Durban Harbour (South Africa) and its preliminary characterization as Marinobacter sp. KM2." Water Science and Technology 65, no. 5 (2012): 932–39. http://dx.doi.org/10.2166/wst.2012.940.

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Many aromatic hydrocarbons assigned to the so-called high production volume chemicals (HPVCs) are frequently encountered constituents of wastewaters that end up in the sea. Although the pollutant-degrading capabilities of freshwater bacteria are well known, the catabolism of pollutants by marine bacteria has received limited attention. A marine bacterium with the ability to aerobically utilize phenol – an HPVC and common aromatic pollutant – as its sole source of carbon and energy, was isolated from water samples from Durban Harbour, South Africa. The isolate, designated strain KM2, was assign
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Dissertations / Theses on the topic "Water pollutants. eng"

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Lima, Daína de. "Estudo do efeito de metais em esterases de zebrafish (Danio rerio) /." São José do Rio Preto : [s.n.], 2011. http://hdl.handle.net/11449/97780.

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Orientador: Eduardo Alves de Almeida<br>Banca: Gisela de Aragão Umbuzeiro<br>Banca: Lilian Castiglioni<br>Resumo: Ambientes naturais próximos a áreas urbanas e industrializadas são comumente contaminadas com descargas de poluentes, as quais são muitas vezes compostas por agentes químicos que não são removidos por sistemas de tratamento de efluentes convencionais, resultando num grande aporte de substâncias potencialmente tóxicas no ambiente aquático. Os metais são componentes naturais presentes nos ecossistemas. Estes elementos são indispensáveis para processos bioquímicos e fisiológicos nos s
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Rossi, Carlos Henrique. "Remoção de micropoluentes na filtração lenta com pré-oxidação com radiação solar /." Ilha Solteira : [s.n.], 2010. http://hdl.handle.net/11449/98079.

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Resumo: A pesquisa vem testar duas tecnologias conhecidas, mas no Brasil nunca utilizada em conjunto. O processo de oxidação com utilização de radiação solar seguida pelo processo de filtração lenta pode ser muito promissor no tratamento de água para pequenas comunidades ou comunidades rurais. A praticidade em conjunto com uma nova tecnologia vem mostrar a eficiência de uma energia que não é aproveitada ou até pouco aproveitada no mundo todo. A incidência de raios Ultra Violeta presente na radiação solar quebrou as moléculas de ácido húmico e de fármacos facilitando sua remoção pela camada bio
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Dixon, Trevor. "Long-term assessments of some vessel-source marine pollutants." Thesis, University of South Wales, 1997. https://pure.southwales.ac.uk/en/studentthesis/longterm-assessments-of-some-vesselsource-marine-pollutants(23bf3738-6f68-47f6-90b0-549f48be5b2a).html.

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Accidental and deliberate discharges from maritime transportation activities have been widely perceived as major sources of pollution. Preventive and control management strategies have therefore been progressively introduced internationally to reduce and eliminate these inputs to the marine environment. The long-term effectiveness of these measures, applied to vessels operating in the waters around the British Isles, is the research question that has been under investigation by the author since 1971. Following analyses of stakeholders' interests and concerns, and associated information require
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Carstens, Christoffer. "In the Pipe or End of Pipe? : Transport and Dispersion of Water-borne Pollutants and Feasibility of Abatement Measures." Licentiate thesis, KTH, Vattenvårdsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-94110.

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Eutrophication is one of the key environmental problems of today, both in terms of complexity and magnitude. For the Baltic Sea (BS), eutrophication is an acute problem, leading to hypoxic conditions at the bottom; a situation that is sustained and amplified, when phosphorus is released from hypoxic sediments. Reducing nutrient loading is a top political priority but the present situation is believed to require active measures within the catchments and recipients to reduce both loading and adverse effects. Implementation of effective and cost-efficient abatement methods requires understanding
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Yip, Chi Kin. "Novel clay-based metal composites as applicable heterogeneous catalysts for the photo-assisted degradation of textile organic pollutants in water /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202005%20YIP.

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Maja, Lončarski. "Uticaj fizičko-hemijskih svojstava mikroplastike i odabranih perzistentnih organskih polutanata na interakcije u vodenom matriksu." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114925&source=NDLTD&language=en.

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Mikroplastika&nbsp; je&nbsp; sveprisutna&nbsp; u&nbsp; vodenom&nbsp; ekosistemu&nbsp; pri&nbsp; čemu&nbsp; se&nbsp; čestoističe značaj ispitivanja njihovog uticaja na pona&scaron;anje drugih jedinjenja u vodi.Pod pojmom mikroplastika podrazumevaju se plastične čestice manje od 5 mm.Imajući u vidu potrebu za unapređenjem znanja o &scaron;tetnom uticaju mikroplastikeu životnoj sredini u ovom radu sproveden je set eksperimenata u kom je ispitivanmehanizam&nbsp; interakcija&nbsp; koje&nbsp; se&nbsp; uspostavljaju&nbsp; prilikom&nbsp; adsorpcije&nbsp; hlorovanihfenola,&nbsp; derivata&nbsp; benzena
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Books on the topic "Water pollutants. eng"

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International Agency for Research on Cancer., ed. Some drinking-water disinfectants and contaminants, including arsenic. IARC Press, 2004.

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Frid, Christopher L. J., and Bryony A. Caswell. Marine Pollution. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198726289.001.0001.

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We use more than 100 000 chemicals in our daily lives to promote health, treat disease, facilitate transportation, use in industrial processes, grow food and access clean water. While these developments have improved human lives, many of these compounds ultimately end up in our seas and oceans where they represent a threat to marine life, ourselves and our continued use of the oceans to treat our waste, provide us with food and offer us recreation. Many of the pollution problems of previous decades seem to have been resolved, in the developed world, or at least managed to minimise their enviro
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World Health Organization (WHO) and IARC. Some Drinking-water Disinfectants and Contaminants, including Arsenic (Iarc Monographs on the Evaluation of Carcinogenic Risks to Humans). World Health Organisation, 2004.

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Vuorinen, Ilppo. Post-Glacial Baltic Sea Ecosystems. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.675.

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Post-glacial aquatic ecosystems in Eurasia and North America, such as the Baltic Sea, evolved in the freshwater, brackish, and marine environments that fringed the melting glaciers. Warming of the climate initiated sea level and land rise and subsequent changes in aquatic ecosystems. Seminal ideas on ancient developing ecosystems were based on findings in Swedish large lakes of species that had arrived there from adjacent glacial freshwater or marine environments and established populations which have survived up to the present day. An ecosystem of the first freshwater stage, the Baltic Ice La
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Book chapters on the topic "Water pollutants. eng"

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"An overview of the main water pollutants in OECD countries." In OECD Studies on Water. OECD, 2017. http://dx.doi.org/10.1787/9789264269064-5-en.

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Ho, Yeek-Chia, Siong-Chin Chua, and Fai-Kait Chong. "Coagulation-Flocculation Technology in Water and Wastewater Treatment." In Handbook of Research on Resource Management for Pollution and Waste Treatment. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-0369-0.ch018.

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Coagulation and flocculation processes are widely used in potable water treatment due to its high efficiency in turbidity removal. Egyptians discovered this method in 1500 BC by using alum to settle the suspended solids in the water. Today, the coagulation and flocculation processes are implemented with the purpose of agglomerate colloids and fine particles in water into larger particles, which is also known as floc. Therefore, reduction of turbidity and pollutants e.g. organic matter, inorganic matter, suspended solid, etc. can be achieved. This chapter covers the principle of coagulation and flocculation process which includes the charge neutralization and various binding mechanisms e.g. interparticle bridging, sweeping coagulation, and absorption. Besides, various types of coagulants and flocculants that have been discovered and their respective effectiveness in potable water treatment are discussed as well in this chapter. Polymer modifications to synthesize new coagulant/flocculant i.e. grafting and crosslinking are also included.
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Thomson, Peter. "Connecting the Dots." In Sacred Sea. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195170511.003.0027.

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Really, though—who among us, Russian or otherwise, isn’t a sucker for a deft illusion? Who doesn’t want to believe that the girl really has vanished? And in a time when talk of The End of Nature on our almost fully industrialized planet rings chillingly true, who doesn’t want to believe that there are still a few scraps of earth left with the power to take the worst that humans can throw at them and turn it into nothing at all? Like I said, that’s one of the reasons I came here— to witness the Great Baikal’s awesome act. And the illusion is easy to get sucked into, because here’s the thing: It’s not just smoke and mirrors and nationalistic Russky hype. It’s largely true—despite decades of hefty daily doses of contaminants from the Angara industrial corridor, the Selenga River, the Baikalsk mill, and other sources, there’s been little discernable change in the overall chemistry of the lake—the vast majority of Baikal’s twenty-three quadrillion liters of water remain as pure as just about any on earth. It seems that something remarkable really is going on here. We know it’s not that contaminants are just blending into Baikal’s tremendous volume to the point of becoming undetectable. Scientists have detected miniscule amounts of industrial contaminants even far from the known hot spots, although nowhere near what they’d expect from the amounts they suspect are going into the lake. Nor is it that the lake is merely turning a trick on a grander scale that just about every body of water performs—using its plants and animals and microbes to metabolize and break down some pollutants. Normal biological processes here and elsewhere do destroy some contaminants fairly quickly, but many of the industrial pollutants coming into the lake don’t break down significantly for years or decades, and those basic biochemical limitations are no different among Baikal’s flora and fauna than anywhere else. And the water itself? Well, scientific tests prove it—it’s just plain H2O. It doesn’t have unique properties that allow it to alchemically transform tenacious pollutants into harmless substances. It’s just water.
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Gray, John S., and Michael Elliott. "Human impacts on soft-sediment systems—pollution." In Ecology of Marine Sediments. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780198569015.003.0013.

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A widely accepted definition of marine pollution is “the introduction by man, directly or indirectly, of substances or energy into the marine environment (including estuaries) resulting in such deleterious effects as harm to living resources, hazards to human health, hindrance to marine activities including fishing, impairment of the quality for use of seawater, and reduction of amenities”. (Wells et al. 2002). This differs from contamination since it results in biological damage, whether to the natural or human system, whereas contamination can be regarded merely as the introduction of substances by human activities (McLusky and Elliott 2004). Furthermore, pollution and pollutants can refer to biological and physical materials as well as chemicals (Gray 1992, Elliott 2003). In the case of the benthos, there is an extensive literature indicating that every type of pollutant has an effect on the benthos and so it is not surprising that the benthos is the mainstay of any monitoring and investigative programme. Pollution can affect organisms living in sediments by physical variables associated with the pollution source, such as increased sedimentation of particles, which leads to smothering of the fauna. In such cases the effect can in fact be regarded as a disturbing factor if the effects lead to mortality of individuals (Gray 1992). Alternatively, pollution can affect the fauna by toxicity where increased concentrations of contaminants lead to biochemical and physiological effects and ensuing mortality if certain thresholds for adaptation are exceeded. Here, however, we first treat the effects of the most widespread form of pollution affecting the marine environment— increased organic matter in sediments. Excess organic matter enters the marine environment principally as sewage, although it can also include waste from paper pulp mills or changed river run-off, for example. Excess organic matter causes physical effects such as smothering and also leads to reduced oxygen concentrations in the water column or pore-water in sediments. Sewage discharged into confined bodies of water frequently leads to the well-known symptoms termed eutrophication, resulting, in the most extreme cases, in a total lack of oxygen and the presence of hydrogen sulfide in the sediment, with a corresponding absence of fauna (e.g. de Jonge and Elliott 2001).
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Gallo-Cordova, Alvaro, Daniela Almeida Streitwieser, María del Puerto Morales, and Jesús G. Ovejero. "Magnetic Iron Oxide Colloids for Environmental Applications." In Colloids - Types, Preparation and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95351.

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This chapter deals with magnetic colloids with catalytic properties for the treatment of polluted waters and the efficient production of fuel alternatives. This kind of materials presents great advantages such as high surface/volume ratio, reproducibility, selectivity, ability to be magnetic harvested, functionalizable surfaces (e.g. with tunable pores and selective chelators deposited on them), high efficiencies and reusability. In particular, this chapter will consider the case of magnetic iron oxide colloids, which can be easily synthesized at low cost, are biocompatible and presents a well-developed surface chemistry. The most common techniques for the synthesis and functionalization of these magnetic nanoparticles will be reviewed and summarized. The iron oxide nanoparticles present outstanding properties that can be exploited in different aspect of the wastewater treatment such as heavy metals and organic pollutants removal by ionic exchange or adsorption, and degradation of the contaminants by advanced oxidation processes, among others. In the field of alternative energies, they have also been used as catalysts for biofuels production from oil crops, in Fischer-Tropsch reactions for liquid hydrocarbons and many other processes with potential environmental impact.
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El-Daoushy, Farid. "Assessing Environment-Climate Impacts in the Nile Basin for Decision-making." In Green Technologies. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-472-1.ch407.

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Assessing the environmental and climatic impacts in the Nile Basin is imperative for appropriate decision and policy making on national and regional levels. Tracer techniques provide basic spatio-temporal tools for quantifying ongoing and past, and for predicting future, environmental and climatic impacts in whole Nile Basin. These tools allow the sustainable use of the natural resources through developing appropriate large-scale and long-term management and planning strategies. Radiotracers, for example, have diverse properties, unique sources and cycles in the environment. They provide powerful approaches to understand the behaviour of atmospheric processes, and the role of dry and wet-deposition on transfer of matter from the atmosphere to the earth’s surface. They are, also, useful for assessing the present status and evolution, as well as for quantifying the functioning and metabolism, in complex aquatic and land-water systems through appropriate definition of the spatio-temporal scales forcing their interactions with the environment and climate. They yield rich data on sources, pathways and flow-rates of matter (e.g. nutrients and pollutants) within and between landscape units and at the critical boundaries of the hydrosphere with the lithosphere, ecosphere and the atmosphere. Mitigation and adaptation strategies for coupled environment-climate policies require records and observations supported by model and forecasting infra-structures that can simulate the impacts of coupled environment-climate changes both on local and landscape scales. Impacts of global warming are not straightforward to predict unless reasonable scales can be used to compile and collate the diverse climatic and environmental data. Coordinated studies and observations of complex river-, lake-catchment, land-water and delta-coastal systems can provide a wide-range of information on human and climate impacts through using radiotracers as common time and space indicators for assessing the flow of matter on earth’s surface. In this context, the Nile Basin can serve as a model for coupled environment-climate impact studies in complex aquatic systems where sustainable management policies, e.g. use of natural resources, protection and rehabilitation, are needed.
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Dasgupta, Partha. "The Economies of Food." In Feeding a World Population of More Than Eight Billion People. Oxford University Press, 1998. http://dx.doi.org/10.1093/oso/9780195113129.003.0007.

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People expressing concern about the environmental resource basis of human life often take a global, futuristic view (see, e.g., Kennedy, 1993). They emphasize the deleterious effects that growing population and rising consumption would have on our planet in the future. They express worry that the increasing demand for environmental resources (such as agricultural land, forests, fisheries, fresh water, the atmosphere, and the oceans) and the resulting impacts on ecosystem services (such as regenerating soils, recycling nutrients, filtering pollutants, assimilating waste, pollinating crops, and operating the hydrological cycle) would make civilization unsustainable. This book is, at least in part, a response to this thought. Although the global, futuristic emphasis has proved useful, it has had two unfortunate consequences: it has encouraged us to adopt an all-or-nothing position (the future will be either catastrophic or rosy), and it has drawn attention away from the economic misery that is endemic in large parts of the world today. Disaster is not something for which the poorest have to wait: they face it right now, and nearly 1 billion people go to bed hungry each night, having been unable to escape from something that can be called a poverty trap. Moreover, in poor countries, decisions on fertility and on allocations concerning education, child care, food, work, health care, and the use of the local environmental resource base are in large measure reached and implemented within households. In earlier work (Dasgupta, 1993, 1995a, 1995b, 1996, 1997), I have tried to show that the interface that connects the problems of population growth, poverty environmental degradation, food insecurity, and civic disconnection should ideally be studied with reference to myriad communitarian, household, and individual decisions, or, in other words, that if we are to reach a global, futuristic vision of the human dilemma, we need to adopt a local, contemporary lens.
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Hofstede, Jacobus. "Danish–German–Dutch Wadden Environments." In The Physical Geography of Western Europe. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780199277759.003.0020.

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The Wadden Sea environment is a coastal tidal environment situated between the North Sea and the northwestern European Lowlands. It stretches over a distance of about 450 km from Den Helder in The Netherlands to the peninsula of Skallingen in Denmark. The approximately 10,000 km2 large Wadden Sea is a coastal sediment sink that developed in the course of the Holocene transgression. It resulted from a specific combination of sediment availability (mainly from the North Sea) and a hydrodynamic regime of tides and waves. In its present state, the Wadden Sea environment consists of extensive tidal flats (the wadden), tidal gullies and inlets, salt marshes, and about twenty-four sandy barrier islands. Further, four estuaries exist that discharge into the Wadden Sea. The Wadden Sea may best be characterized by the words ‘dynamic’ and ‘extreme’; dynamic from a geo-morphological point of view, extreme in its biology. According to Spiegel (1997), with each flood phase a tidal energy input in the order of 2.2 thousand MW occurs in the Wadden Sea of Schleswig-Holstein (Germany). This energy input, combined with the energy impact of wind, waves, and storm surges, results in strong morphological processes. Flora and fauna in the Wadden Sea have to adapt to these intense morphodynamics. Further, they have to endure the permanent change of flood and ebb and fluctuations in salinity, as well as high water temperatures during summer and occasional ice cover during winter. As a result of these extreme environmental conditions, a highly specialized biosystem with about 4,800 species has developed (Heydemann 1998). In its present state the Wadden Sea is one of the last remaining near-natural large-scale ecosystems in central Europe. Its ecological significance is underlined by the fact that 250 animal species live exclusively here (Heydemann 1998). Furthermore, nowhere else in Europe is an ecosystem of this size visited by more birds per surface area for the purpose of feeding. However, the Wadden Sea is subjected to considerable human influences, e.g. the input of nutrients and pollutants, fisheries, dredging, boat traffic, and tourism (de Jong et al. 1999).
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Conference papers on the topic "Water pollutants. eng"

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Bozza, Fabio, Raffaele Tuccillo, and Gustavo Fontana. "Performance and Emission Levels in Gas Turbine Plants." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-220.

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The rise in gas turbine combustion chamber temperatures requires optimal choices to be made with regard not only to performance parameters but also with a view to resolving pollutant emission problems. For this reason, the authors have set up a gas turbine cycle model which performs an accurate analysis of several processes, in terms of operating fluid chemical and thermodynamic properties. The model also enables prediction of NOx formation based upon chemical kinetics and is able to relate the amount of pollutants to a number of operating parameters (e.g. cycle pressure ratio, fuel to air equ
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Sheldon, Seth, and Anamarija Frankic´. "A Model for Relating Environmental Variation to Water Permit Violations at Thermoelectric Facilities in the Taunton River Watershed." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63785.

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An original model is presented that relates the rate of National Pollutant Discharge Elimination System (NPDES) water use permit violations and reduced capacity events (dial-back) at once-through cooled thermoelectric power plants to electricity demand and ambient environmental conditions using historical data. 31 percent of U.S. generation capacity is composed of thermoelectric facilities that use once-through (open loop) cooling [1]. Open loop systems have substantial water demands, which put energy facilities and downstream ecosystems at risk during extreme climate events (e.g. heat waves,
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Mahmoud, Sawsan A., A. Abdel Aal, and Ahmed K. Aboul-Gheit. "Nanocrystalline ZnO Thin Film for Photocatalytic Purification of Water." In ASME 2008 2nd Multifunctional Nanocomposites and Nanomaterials International Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/mn2008-47034.

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A thin film ZnO nanostructured catalyst exhibited a significantly greater superiority for the photodegradation of 2, 4, 6-TCP in water over photolysis via irradiation with UV of 254 nm wavelength. This ZnO photocatalyst was prepared via Zn metal evaporation and deposition on a glass sheet followed by calcination ature from 350 to 500 °C and the calcination time from 1 to 2h shows via SEM photography a decrease of ZnO nanoparticales sizes sheet followed by calcination (oxidation). Increasing the calcination temperature from 350 to 500 °C and the calcination time from 1 to 2h shows via SEM photo
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Burlakovs, Juris, Jovita Pilecka, Inga Grinfelde, and Ruta Ozola-Davidane. "Clay minerals and humic substances as landfill closure covering material constituents: first studies." In Research for Rural Development 2020. Latvia University of Life Sciences and Technologies, 2020. http://dx.doi.org/10.22616/rrd.26.2020.032.

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Soil and groundwater as the leachate may contaminate surrounding watersheds, thus different pollutants from closed dumps and landfills pose significant risks to human health and ecology. Pollution may lead to soil and water degradation however it might be diminished through sustainable dump site closure projects and processual management. Several decades of clays and clay minerals studies lead to modified clay composites concept that is one of the potential promising solutions for building the landfill covering material and serve as capping biocover layer at the same time. As humic substances
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Littleford, Wayne, and Sanjeev Jolly. "An Innovative Approach to Emission Reductions and Heat Recovery: Comply Units." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23814.

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Emissions from power plants are increasingly becoming a global concern that is forcing countries to set tougher and tougher standards for meeting regulations. Compliance with these requirements comes at a cost — resources required to install and maintain the necessary equipment that is often exacerbated by a reduction in efficiency. These harmful emissions that are products of combustion (POC) are typically classified as NOx, SO2, CO2, UHC (unburned hydrocarbons) and Particulate and sometimes heavy metals like mercury, arsenic, etc. Currently there are specific methods available for reducing e
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Patil, Vinay, Aybala Usta, Muhammad M. Rahman, and Ramazan Asmatulu. "Investigating Effects of Graphene Nanoinclusions for Improved Desalination Rates of Salt Water Under Solar Heat." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88637.

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The development of sustainable, cost-effective, reliable, efficient and stable materials and methods for continuous fresh water production is crucial for many regions of the world. Among the many other options, graphene nanoflakes seem to be good option to solve the global water problem due to their low energy cost and simple operational process to purify waste water. The produced water can be used for drinking, agriculture, gardening, medical, industrial and other purposes. Most of the nanofilter-based multifunctional fresh water systems do not require large infrastructures or centralized sys
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Ginger, Bradley. "Advanced Pollution Control for Gasification of Varied Opportunity Fuels." In 19th Annual North American Waste-to-Energy Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/nawtec19-5432.

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Advances in gasification technology have opened up a number of commercial opportunities to generate energy from a wide range of non-traditional feed stocks. Gasification technology platforms from a number of providers are in development with the goal of creating modular solutions for supplying the energy needs of local communities, often in solutions as small as 10 to 20 MW increments. Such technologies offer potential project developers the ability to explore local opportunities for fuel supply from a number of sources. These opportunity fuels cover a wide range of potential energy sources as
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Morini, Mirko, Michele Pinelli, Pier Ruggero Spina, and Anna Vaccari. "An Innovative Inlet Air Cooling System for IGCC Power Augmentation: Part III — Computational Fluid Dynamic Analysis of Syngas Combustion in Nitrogen-Enriched Air." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94094.

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In recent years, an innovative system for power augmentation has been presented by the authors. The system is based on gas turbine inlet air cooling by means of liquid nitrogen sprayers. This system is not characterized by the limits of water evaporative cooling (i.e. lower temperature limited by air saturation) and refrigeration cooling (i.e. effectiveness limited by pressure drop in the heat exchangers), but the injection of a large amount of liquid nitrogen at gas turbine inlet section can be disputable. In fact, the air composition changes, though not considerably, after nitrogen injection
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Castillo, Analy, Scott Samuelsen, and Brendan Shaffer. "Deployment of Fuel Cell Electric Buses in Transit Agencies: Hydrogen Fueling Infrastructure Scenarios." In ASME 2015 9th International Conference on Energy Sustainability collocated with the ASME 2015 Power Conference, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/es2015-49313.

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For transit agencies looking to implement Zero Emission Vehicles (ZEV), Fuel Cell Electric Buses (FCEBs) represent an opportunity because of the similar range and refueling times compared to conventional buses, but with improved fuel economy. To assure an environmentally sensitive hydrogen infrastructure that can respond to the wide range of needs and limitations of transit agencies, a systematic evaluation of options is essential. This paper illustrates the systematic evaluation of different hydrogen infrastructure scenarios for a transit agency. The Orange County Transportation Authority (OC
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Young, Raymond, and Manou Kashani. "Carbon Footprint Minimization for Deepwater Pipelay Construction." In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31105-ms.

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Abstract With recent oil and gas discoveries in deepwater offshore, these regions have become the hotspots for oil and gas exploration. It is for this reason that major pipelay contractors are developing more advanced construction vessels with high lay tension capacity, payload and high specification dynamic positioning (DP) systems to operate at even deeper water depths. It is shown that at water depths of greater than 1000 m, one of the major construction costs is fuel consumption, which is directly related to the level of thrust and hold back tension the laybarge is required to maintain dur
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