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Thèses sur le sujet « Sewage Environmental aspects Vietnam »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 19 février 2022

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1

Vo, Le Phu. "Urban stormwater management in Vietnam." Title page, table of contents and abstract only, 2000. http://web4.library.adelaide.edu.au/theses/09ENV/09envl595.pdf.

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2

Li, Bing, and 李炳. "Occurrence, transformation and fate of antibiotics in municipal wastewater treatment plants." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46591102.

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3

Tshivhunge, Azwiedziswi Sylvia. "Enzymology of activated sewage sludge during anaerobic treatment of wastewaters : identification, characterisation, isolation and partial purification of proteases." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1004072.

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During anaerobic digestion bacteria inside the digester require a carbon source for their growth and metabolism, sewage sludge was used as a carbon source in this study. The COD content was used to measure the disappearance of the substrate. COD content was reduced by 48.3% and 49% in the methanogenic and sulphidogenic bioreactors, respectively, while sulphate concentration was reduced by 40%, producing 70mg/L of hydrogen sulphide as the end product over the first 5-7 days. Sulphate (which is used as a terminal electron acceptor of sulphur reducing bacteria) has little or no effect on the sulp

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4

MacNicol, Roger. "The forms of combination of Cu, Ni and Zn in anaerobic sewage sludge." Thesis, University of Oxford, 1989. http://ora.ox.ac.uk/objects/uuid:ddd31ded-57f0-415d-9ab7-a390b9c8632a.

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As a first step in understanding the chemistry of toxic elements in sludged soil, this thesis presents a comprehensive model of their chemistry in the digester. A review of the literature had shown that heavy metals were likely to be held in 3 pools: as precipitated and detrital mineral phases 'Particulate'; as complexes with the flocculated biomass 'Biofloc'; and as complexes in solution 'Soluble'. A simple pragmatic fractionation procedure has been offered to separate these 3 pools based on their physical properties in water. A mass-balance between the pools showed that the 'Particulate' fra

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5

Chan, Sai Yen Victor, and 陳世欽. "Potential environmental hazards of wastewater from hospitals and theirmitigation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B41016257.

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6

Anand, Archana. "The nitrogen isotope fingerprint of wastewater effluents in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/207619.

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Nitrogen pollution in marine waters is directly tied to human development – including agricultural runoff, atmospheric deposition, and urban wastewater effluents. After more than a century of urbanization, Hong Kong faces a major challenge in mitigating marine pollution, particularly nitrogen. Indeed, nitrogen pollution may be one of the primary causes of benthic ecosystem decline as evidenced by a contraction in the historical distribution of corals and seagrasses. Such ecosystems provide vital ecosystem services, not limited to nursery grounds for economically important fisheries. While the

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7

Visser, Gunnar Lieb. "Permeable reaction barrier system for the treatment of textile wastewater using cobalt oxide." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2631.

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Thesis (MEng (Chemical Engineering))--Cape Peninsula University of Technology, 2018.<br>Advanced oxidation processes (AOPs) have gained considerable interest in the wastewater treatment industry. Low selectivity to organic pollutants and the high oxidation potentials provided by the free radicals produced from these processes are the root of this interest. Hydroxyl radical based AOPs seemed to dominate the field but recently sulphate radical based AOPs started to become more popular due to their even higher oxidation potential. The textile industry is known to be a considerable contributor to

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8

Chiu, Chen. "Anaerobic digestion of baker's yeast wastewater using a UASB reactor and a hybrid UASB reactor." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29589.

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The start-up and step-up operation of two 16-liter, continuously operated, upflow anaerobic reactors receiving baker's yeast wastewater is presented in this thesis. The two reactors (A and B) were almost identical in construction. Reactor A was a conventional upflow anaerobic sludge blanket (UASB) reactor, and reactor B was a hybrid reactor. In addition to all the features of a UASB reactor, a fixed-film structure was installed in the mid section of the reactor B. Both reactors were operated at 35 °C and at a constant hydraulic retention time of 7 days. The waste strength, expressed in chemica

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9

DeBruyn, Adrian M. H. "Sewage and the ecology of the St. Lawrence River." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=38176.

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This thesis examines the ecological consequences of sewage disposal in aquatic ecosystems. Sewage simultaneously represents a form of enrichment and a source of stress to a receiving system. Enrichment effects dominate when sewage loading does not exceed the capacity of the system to assimilate waste, as is presently the case in the St. Lawrence River. We developed a method to quantify the assimilation of sewage-derived organic matter by riverine biota, then used this method to examine the pathways by which sewage enhances secondary production in the St. Lawrence. We showed that the relative i

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10

Pardieck, Daniel L. "Biodegradation of phenols in aquatic culture by soil-derived microorganisms, with reference to their fate in the subsurface." Diss., The University of Arizona, 1988. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1988_226_sip1_w.pdf&type=application/pdf.

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11

Takwi, Colette Nchong. "An assessment of the management of odour at the Athlone wastewater treatment works, Cape Town." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2788.

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Thesis (MTech (Environmental Management))--Cape Peninsula University of Technology, 2017.<br>¹Odour nuisance is increasingly becoming one of the major environmental problems in various countries across the world, especially odour associated with wastewater (Alfonsin et al., 2015; Schlegelmilch et al., 2005; Gostelow et al., 2001). As a result, the management of odour from Wastewater Treatment Works (WWTW) has become one of the environmental challenges besetting these facilities in recent times. The dispersion of odour across the physical boundary of wastewater treatment facilities presents not

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12

Keita, Abdoulaye. "The relative ecological effectiveness and economic efficiency of four wastewater treatment plants in East Central Indiana." Virtual Press, 2000. http://liblink.bsu.edu/uhtbin/catkey/1177978.

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The study was conducted to investigate the ecological effectiveness and economicefficiency of four wastewater treatment plants in East Central Indiana (Muncie, Anderson, Alexandria, and Paws). Data were collected from the four plants, then analyzed descriptively and statistically, and compared in terms of ecological effectiveness and economic efficiency. The Muncie, Anderson, and Paws wastewater treatment facilities were not significantly different from one another in terms of biochemical oxygen demand (BOD5) reductions, but each reduced BOD5 more than the Alexandria facility over the three- y

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13

Lucero, Daniel William. "Plant and soil effects from the surface application of poultry litter to unmanaged pasture." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06112009-063243/.

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14

Uggetti, Enrica. "Sewage sludge treatment in constructed wetlands: technical, economic and environmental aspects applied to small communities of the mediterranean region." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/51580.

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During the last years, the implementation of new Wastewater Treatment Plants has lead to a significant increase of sludge production. As a response, sludge valorisation in agriculture is the preferred option nowadays, ensuring the return of organic constituents, nutrients and microelements to crop fields. In practice, sludge treatments should provide a final product suitable for land application, with reasonable investment as well as operational and maintenance costs. In this sense, sludge treatment wetlands (STW) appear as a suitable technology for sludge management from an economic and envir

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15

Myburgh, Dirk Petrus. "The treatment of biodiesel wastewater using an integrated electrochemical and adsorption process." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2693.

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Thesis (Master of Engineering in Chemical Engineering)--Cape Peninsula University of Technology, 2018.<br>The production of biodiesel is an energy and water intensive process. The wastewater that is produced during this process is high in concentrations of COD, BOD, FOG and various other contaminants. Since it contains low levels of nutrients, it is difficult to degrade using natural processes such as conventional activated sludge wastewater treatment. The discharge of untreated biodiesel wastewater also raises serious environmental concern. It interferes when remediated with biological proces

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Boshoff, Genevieve Ann. "Development of integrated biological processing for the biodesalination of sulphate- and metal-rich wastewaters." Thesis, Rhodes University, 1999. http://hdl.handle.net/10962/d1003958.

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The substantial pollution threat to the South African environment from acid mine drainage (AMD) effluents has been well documented. Due to the juvenile nature of acidity in these flows, any remediation strategies implemented will need to function effectively and at low cost for long periods of time. The widespread use of sulphate reducing biological systems for the treatment of such effluents, and in particular large volume flows, has been limited. The supply of inexpensive electron donor and carbon sources, as well as appropriate reactor designs capable of handling large volume flows, have be

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17

Shrivastava, Vikram. "Creek water quality impacts : irrigation tailwaters and sewage discharges." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0006/MQ44277.pdf.

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18

Kan, Hon-shing, and 簡漢成. "EIA of sewerage projects: an overview of the Hong Kong situation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31253155.

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19

Fortin, Nathalie. "Molecular characterization of dechlorination potential in kraft pulp mill effluent treatment systems." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27317.

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Many low molecular weight chlorinated organic compounds produced by the pulp and paper industry during kraft bleaching of the wood pulp are toxic. Mass balance studies suggest that mineralization of chlorinated organics is occurring in pulp and paper mill wastewater treatment systems. To understand the nature of dechlorination activity, molecular tools such as oligonucleotide primers and corresponding DNA probes were developed to monitor the presence of microorganisms possessing key genes (dehalogenases) responsible for the degradation of chloroaliphatic organics in kraft pulp mill effluent tr

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20

Bhathena, Jasmine. "The physical and physiological effects of nitrogen and phosphorus limitation on a pulp and paper mill effluent biotreatment microbial community /." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=80228.

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The influence of nitrogen (N) and phosphorus (P) limitation on pulp and paper mill activated sludge (AS) floc properties was studied using a bioreactor fed with synthetic Kraft mill effluent. The bioreactor and synthetic effluent were designed and shown to perform like the real mill system providing the AS, establishing the in vivo relevance of the results. Limitation of either N or P produced inadequate effluent biotreatment, shown by poor BOD5 and suspended solids removal, and by decreased biomass health, performance, and floc settling. Greatly enhanced poly-beta-hydroxybutyrate (PHB)

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21

Renew, Jay Earl. "Novel analytical method development and fate assessment for fluoroquinolone, sulfonamide and trimethoprim antibiotics in engineered water treatment systems." Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/19910.

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22

Larsson, Josefine. "Genetic Aspects of Environmental Disturbances in Marine Ecosystems : Studies of the Blue Mussel in the Baltic Sea." Doctoral thesis, Södertörns högskola, Miljövetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-33697.

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Anthropogenic environmental changes can serve as drivers for evolutionary responses in wild populations. To predict the long-term impact of anthropogenic changes on populations, it is crucial to understand the genetic effects caused by these disturbances. The Baltic Sea is considered to be one of the world’s most contaminated seas, and the increase of anthropogenic chemical pollution is a major threat to its ecosystems. This thesis assesses the impact of harbors and sewage treatment plants on physiological traits and genetic structure of resident populations of blue mussels at replicated sites

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23

Fappi, Devanir André. "Micro e ultrafiltração como pós-tratamento para reúso de efluentes de abatedouro e frigorífico de suínos." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1273.

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Fundação Araucária; CAPES<br>As indústrias alimentícias utilizam considerável volume de água para suprir a demanda de processos. Devido a isso, observa-se um grande volume gerado de efluentes que necessitam ser tratados para garantir o destino final adequado. Tendo em vista a crescente escassez de água, procedimentos de racionalização do uso da água e o reúso de efluentes tratados surgem como soluções para estes problemas. A aplicação de processos de separação por membranas no tratamento de efluentes da indústria alimentícia para reúso apresenta-se como um processo de tratamento avançado aprop

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24

Wilson, Cullen. "Biogeochemical Effects of Lime-Treated Biosolids Amendments on Soils in a Northeastern Forested Ecosystem." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/WilsonC2008.pdf.

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25

Williams, Margot Lluttrell. "Macroinvertebrate community and species responses to chlorinated sewage effluent in the Umsunduze and Umbilo rivers, Kwa Zulu-Natal, South Africa." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005413.

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Chlorine has a wide variety of applications in water treatment. Because of its disinfectant efficacy, it is used world wide for the treatment of potable water, sewage, swimming pools and for the control of nuisance organisms in cooling towers. A problem arises when such chlorinated water enters the natural environment, as chlorine's greatest advantage, i.e. its germicidal capacity, becomes its greatest disadvantage. In particular, the discharge of heated, chlorinated water from cooling towers and chlorinated, treated sewage into rivers have severe consequences for the riverine flora and fauna.

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26

Jingxi, Estella Zandile. "Forward osmosis : a desalination technology for the textile industry." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2674.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2017.<br>Similar to the energy crisis, the critical state of the water supply in South Africa (SA) is a combination of (i) resource exhaustion and pollution; (ii) increasing demand; and (iii) poor infrastructure. Despite its importance, water is the most poorly managed resource in the world. The disposal of industrial effluents contributes greatly to the poor quality of water. The textile industry consumes great quantities of water and produces enormous volumes of wastewater which requires appropriate treatment bef

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Norwood, Sasha Norien. "Characterization of Nano-scale Aluminum Oxide Transport Through Porous Media." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/981.

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Land application of biosolids has become common practice in the United States as an alternative to industrial fertilizers. Although nutrient rich, biosolids have been found to contain high concentrations of emerging contaminants (e.g. pharmaceuticals, personal care products) while containing a significant fraction of inorganic nano-scale colloidal materials such as oxides of iron, titanium, and aluminum. Given their reactivity and small size, there are many questions concerning the potential migration of these nano-sized colloidal materials through the soil column and into our surface and grou

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Geertsema, Wesley S. "Long-term effects of alum sludge application to land." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12232009-020505/.

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Nelson, John D. "Toxicity characteristic leaching procedure analysis of dye containing sludges." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-10062009-020242/.

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Prinz, William Ernst. "The management and regulation of the beneficial use of sewage sludge as an agricultural soil amendment in Riverside County." CSUSB ScholarWorks, 1996. https://scholarworks.lib.csusb.edu/etd-project/1190.

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Ma, Ruowei, and 馬若為. "Quantification and partition of perfluorochemicals in Hong Kong wastewater sludge." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43223862.

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Louis, Richard Joseph. "Utilization of a combined activated sludge fixed film media system for treatment of a high strength, high ammonia, industrial wastewater." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06112009-063901/.

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33

Ndobeni, Afika. "Effect of temperature and carbon to nitrogen ratio on the performance of an upflow anaerobic sludge blanket reactor treating sugarcane molasses." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2622.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2018.<br>The sugar industry contributes to the development of the economy in many countries, including South Africa. The wastewater generated by this industry has a high pollution load, and therefore requires treatment before discharge to the environment. The primary aims of this study were to determine the performance of an upflow anaerobic sludge blanket (UASB) reactor treating sugarcane molasses and to develop an empirical model to predict the behaviour of the UASB in terms of chemical oxygen demand (COD) remova

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Nzube, Silumko. "The accumulation of heavy metals in soil and vegetables irrigated with wastewater effluent in the Bauffalo City Region." Thesis, Nelson Mandela Metropolitan University, 2014. http://hdl.handle.net/10948/d10207673.

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The present study was conducted to assess selected heavy metal levels (Cu, Fe, Zn, Ni and Pb) in soil and plants that are irrigated by mixed industrial and domestic wastewater in the Buffalo City region. Three types of samples were studied: soil, water and vegetables (spinach and beetroot). Soil analysis showed that most of the heavy metals were found to be acceptable within the SEPA limits. Most of the heavy metal concentrations found in the wastewater indicate that the water is not suitable for irrigation or for livestock use, according to guidelines from the Department of Water Affairs and

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Halday, Ismail. "Study of the pathway of heavy metals in a sewerage system." Thesis, Link to online version, 2007. http://hdl.handle.net/10019/389.

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Weggler-Beaton, Karin M. "The beneficial and detrimental effects of sewage sludge applications in South Australia." Title page, contents and summary only, 1996. http://web4.library.adelaide.edu.au/theses/09PH/09phw4113.pdf.

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Gauthier, Francis. "Study of coliform bacteria in Canadian pulp and paper mill water systems : their ecology and utility as health hazard indicators." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33401.

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Coliform bacteria have long been used to indicate fecal contamination of food, water, and solid surfaces, and thus the presence of a health hazard. In this study, the in-mill water and external effluent treatment systems of seven typical Canadian pulp and paper mills were shown to support the growth of numerous coliforms, especially Klebsiella spp, Escherichia coli, Enterobacter spp., and Citrobacter spp . Mill coliforms were shown to be not just simple transients from feedwater or furnish (wood), but to be continuously growing, especially in the primary clarifiers. Therefore, coliforms and fe

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Muller, Matthew Justin. "Linking institutional and ecological provisions for wastewater treatment discharge in a rural municipality, Eastern Cape, South Africa." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1013048.

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The Green Drop Certification Programme, launched in 2008 alongside the Blue Drop Certification Programme, aims to provide the Department of Water Affairs with a national overview of how municipalities and their individual wastewater treatment works (WWTW) are complying with licence conditions set by the National Water Act (NWA) (No. 36 of 1998; DWAF 1998) and the Water Services Act (No. 108 of 1997; DWAF 1998). By publishing the results of each municipality’s performance, the programme aims to ensure continuous improvement in the wastewater treatment sector through public pressure. The program

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Lacher, Laurel Jane 1964. "Recharge characteristics of an effluent dominated stream near Tucson, Arizona." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/191199.

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Almost 90% of the treated sewage effluent processed by the two treatment plants serving the greater Tucson area is available for passive recharge through the Santa Cruz River streambed north of Tucson. In the absence of any major disturbance of the effluent channel, the recharge capacity of the streambed materials decreases over time as microbial activity, and possibly suspended sediments settling out of solution, act to clog the surficial sediments under the effluent stream. Effluent stream transmission-loss measurements made over the period from November 1994 to August 1995 provided data use

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Santos, Bruna Souza dos. "Sistema de tratamento híbrido utilizado na remoção do corante reativo 5g de um efluente têxtil sintético." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1274.

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CNPQ; Fundação Araucária; FPTI<br>Nos últimos anos observou-se um crescimento das atividades industriais que provocou impactos significativos aos recursos naturais, e as preocupações com o ambiente em geral adquirem especial importância. Neste contexto, a indústria têxtil considerada uma importante atividade responsável por parte desse desenvolvimento, se caracteriza como geradora de efluente líquido amplamente poluidor devido ao grande volume de água necessária nesse processo produtivo. Levando em consideração os métodos convencionais e também as dificuldades no tratamento dos efluentes têxte

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Lopes, Thiara Reis. "Caracterização do esgoto sanitário e lodo proveniente de reator anaeróbio e de lagoas de estabilização para avaliação da eficiência na remoção de contaminantes." Universidade Tecnológica Federal do Paraná, 2015. http://repositorio.utfpr.edu.br/jspui/handle/1/1285.

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CAPES<br>As Estações de Tratamento de Esgoto (ETEs), são utilizadas com o objetivo de simular os fenômenos naturais de degradação em condições controladas para promover o tratamento dos esgotos, durante este processo, ocorre à produção de um subproduto denominado lodo de esgoto, constituído basicamente por uma mistura de matéria orgânica e inorgânica, que durante o processo de tratamento do esgoto permanece acumulada no sistema. As características do esgoto e do lodo estão relacionadas com as atividades antrópicas, condições climáticas, avanços tecnológicos que também contribuem com a inserção

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Coogan, Melinda Ann. "Bioaccumulation of Triclocarban, Triclosan, and Methyl-triclosan in a North Texas Wastewater Treatment Plant Receiving Stream and Effects of Triclosan on Algal Lipid Synthesis." Thesis, University of North Texas, 2007. https://digital.library.unt.edu/ark:/67531/metadc3986/.

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Triclosan (TCS) and triclocarban (TCC), widely used antimicrobial agents found in numerous consumer products, are incompletely removed by wastewater treatment plant (WWTP) processing. Methyl-triclosan (M-TCS) is a more lipophilic metabolite of its parent compound, TCS. The focus of this study was to quantify bioaccumulation factors (BAFs) for TCS, M-TCS, and TCC in Pecan creek, the receiving stream for the City of Denton, Texas WWTP by using field samples mostly composed of the alga Cladophora sp. and the caged snail Helisoma trivolvis as test species. Additionally, TCS effects on E. coli a

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Mtimkulu, Yandiswa. "Monitoring extracellular enzyme activities and microbial population numbers during composting of winery solid waste." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2344.

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Thesis (MTech (Horticulture))--Cape Peninsula University of Technology, 2016.<br>Waste management in winery and distillery industries faces numerous disposal challenges as large volumes of both liquid and solid waste by-products are generated yearly during cellar practices. Composting has been suggested a feasible option to beneficiate solid organic waste. This incentivized the quest for efficient composting protocols to be put in place. The objective of this study was to experiment with different composting strategies for spent winery solid waste. Compost materials consisting of chopped pruni

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Rinquest, Zainab. "Poultry slaughterhouse wastewater treatment using a static granular bed reactor (Sgbr) coupled with a hybrid sidestream membrane bioreactor." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2638.

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Thesis (MTech (Chemical Engineering))--Cape Peninsula University of Technology, 2017.<br>An increase in the demand for poultry products coupled with the potable water shortages currently experienced in South Africa (SA), attributed to climate change among other factors, makes it crucial for SA to develop water conservation strategies to minimize potable water consumption by water-intensive industries, such as the poultry industry. The development of innovative wastewater treatment processes is therefore paramount in attempting to counteract the large quantity of wastewater generated as we

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Belini, Aldria Diana. "Otimização da remoção da matéria carbonácea e nitrogenada do esgoto sanitário por reator anaeróbio e aeróbio de leito fixo." Universidade Tecnológica Federal do Paraná, 2016. http://repositorio.utfpr.edu.br/jspui/handle/1/1937.

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CAPES; CNPq; Sanepar; Fundação Araucária<br>O aumento da população agrava a qualidade dos corpos receptores existentes, devido a concentração dos despejos de esgotos sanitários com elevadas cargas carbonáceas e nitrogenadas. Existem inúmeras operações de tratamento, porém, a aplicação dos processos biológicos, na maioria dos casos é a alternativa mais econômica. Logo, este trabalho tem por objetivo, otimizar a remoção da matéria carbonácea e nitrogenada de esgotos sanitário por sistema combinado composto de reator anaeróbio e aeróbio de leito fixo. O sistema foi composto de reatores anaeróbio

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Holtman, Gareth Alistair. "Design, installation, and assessment of a biological winery wastewater treatment system." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2573.

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Thesis (MTech (Civil Engineering))--Cape Peninsula University of Technology, 2017.<br>Currently in South Africa, most wastewater from small cellars is pH-adjusted and disposed of via land irrigation. This practice can lead to environmental degradation. There is a need for low cost, low maintenance solutions for the treatment of cellar effluent. Constructed wetlands provide such an option. However, the use of plants is problematic because winery effluent can be phytotoxic. After successful initial laboratory-scale experiments, an in-situ pilot scale biological sand filter (unplanted constructed

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Baerenklau, Amy L. (Amy Lyn). "Evaluation of a Constructed Wetland to Reduce Toxicity from Diazinon at the Pecan Creek Wastewater Treatment Plant, Denton, TX." Thesis, University of North Texas, 1996. https://digital.library.unt.edu/ark:/67531/metadc279107/.

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The City of Denton Pecan Creek Wastewater Treatment Facility has periodically failed effluent toxicity testing. A Toxicity Identification Evaluation has determined that Diazinon in the effluent is contributing to the observed toxicity. Chlorpyrifos is also implicated as a factor. The City of Denton constructed a half acre experimental wetland to remove Diazinon related toxicity. Results from spiking and microcosm experiments indicate that the wetland can reduce the Diazinon.

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Xiong, Xianzhe, and mikewood@deakin edu au. "Heavy metal accumulation in soils at three field sites subject to effluent irrigation." Deakin University. School of Ecology and Environment, 2003. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050902.110403.

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Three field sites were chosen to study the environmental assimilative capacity of heavy metals in soil. These sites were the Werribee Farm and the Myome Farm in Australia and Shenyang Zhangshi Irrigation Area in China. The Werribee Farm and the Shenyang Zhangshi Irrigation Area received sewage treatment and application on land for a long time. The Myome farm is an experimental site in which investigations on land application of municipal wastewater on water repellent soils is currently being trailed. Heavy metal contamination, in particular Cr, Cu and Zn, in the Land Filtration soil of Werribe

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Maschmann, Gerald F. "Recovery of the Fish Population of a Municipal Wastewater Dominated, North Texas Creek After a Major Chlorine Disturbance." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3230/.

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This study evaluated the effects of a major chlorine disturbance on fish communities in Pecan creek by the City of Denton's Pecan Creek Water Reclamation Plant. Fish communities in Pecan Creek were sampled using a depletion methodology during February, April, July, and November, 1999. February and April sampling events showed that the fish communities were severely impacted by the chlorine. Sampling during July and November showed fish communities recovered in Pecan Creek. The first-twenty minutes of shocking and seining data were analyzed to mirror an equal effort methodology. This methodolog

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Hendricks, Nicolette Rebecca. "The application of high capacity ion exchange absorbent material, synthesized from fly ash and acid mine drainage, for the removal of heavy and trace metals from secondary co-disposed process waters." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&amp.

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The objective of this study was to investigate the feasibility of the application of low cost high capacity inorganic ion exchange material, synthesized form collected fly ash and acid mine drainage solid residues, for the decontamination of secondary co-disposal process waters, with emphasis on investigating the processes governing the solid/solution interface.

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