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Dissertations / Theses on the topic 'And effluents'

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Published: 2 June 2025
Last updated: 31 July 2025

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1

Yatmaz, Huseyin Cengiz. "Photocatalysis of organic effluents." Thesis, University of Newcastle Upon Tyne, 1993. http://hdl.handle.net/10443/271.

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Heterogeneous photocatalytic oxidation is a relatively new technology for the destruction of toxic organic substances in water and so far has concentrated on reaction mechanisms and kinetics, but the engineering side was hardly touched. In this study a detailed investigation for suitable reactor design has been carried out using three different reactor types. An annular photoreactor was used with two different lamps with different intensities; low pressure and medium pressure mercury lamps. Two types of Ti02 powder catalysts Degussa P-25 and Tioxide PCi were used as slurry solutions and Deguss
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2

Silva, Marcos Erick Rodrigues da. "Post-Treatment for effluents of anaerobic reactors treating domestic effluent by natural and unnatural coagulants." Universidade Federal do CearÃ, 2006. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=266.

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FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>The current investigation aimed to study post-treatments for effluents of anaerobic sludge blanket reactors by using both natural (Moringa oleifera, Lam) and unnatural coagulants. For that, many jar-tests were conducted either using sewage or effluent of a lab-scale UASB (upflow anaerobic sludge blanket) reactor. Many dosages of natural (Moringa oleifera) and unnatural (ferric chloride) coagulants were tested with sewage. Afterwards, the coagulants effect associated to a polymer (FO 4140) was assessed in the physical-che
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3

Till, Steven W. "Crossflow microfiltration of sewage effluents." Thesis, Cranfield University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.267216.

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4

ORDONEZ, NATALI BELLIDO. "TREATMENT OF EFFLUENTS CONTAINING AMMONIA." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=4018@1.

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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>A presente dissertação investiga a capacidade de remoção de amônia de efluentes através de processos de oxidação química. Testes preliminares foram feitos com peróxido de hidrogênio (H2O2), peróxido de hidrogênio foto ativado (UV + H2O2), reagente Fenton (Fe2+ + H2O2) e Ácido de Caro (H2SO5). Os resultados dos mesmos indicaram apenas a possibilidade do Ácido de Caro oxidar a amônia. Em seguida avaliou-se o desempenho do Ácido de Caro no processo, utilizando soluções sintéticas de cloreto de amônia. Foi estudada a influênci
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5

REIS, RONALD DA SILVA. "TREATEMENT WASTEWATER EFFLUENTS CONTAINING HYDRAZINE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2003. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5112@1.

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No Brasil está em larga expansão o uso de geração de eletricidade por termoeléctricas. Na geração de eletricidade por usinas térmicas são utilizados grandes quantidades de água e produtos químicos, que após utilização geram efluentes. A hidrazina é um produto químico usado para controle de corrosão em águas de caldeiras, sistemas de vapor e outros sistemas de usinas térmicas que após utilização acaba incorporada aos efluentes líquidos destas usinas. Com intuito de promover uma sistemática de controle de efluentes produzidos nas usinas, procurou-se, nesta dissertação, estudar efluentes
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6

Chan, Yvonne Yik Woon. "Ultraviolet treatments of sewage effluents." Thesis, London South Bank University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261143.

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7

Akunna, Joseph Chukwuemeka. "Dépollution azotée des effluents méthanisés." Paris 12, 1993. http://www.theses.fr/1993PA120030.

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L'aptitude a denitrifier des boues methanogenes strictement anaerobies a d'abord ete examinee en utilisant des reacteurs anaerobies infiniment melanges, alimentes par un effluent contenant un compose carbone synthetique fermentescible (le glucose). Aux rapports dco/n-nox eleves, l'ammonification etait la voie principale de reduction des nitrates et nitrites. Lorsque ce rapport diminuait, l'ammonification diminuait au profit de la denitrification. Des experiences conduites en batch ont revele que l'ammonification ne se produisait que lors de la fermentation de substrats carbones tels que le glu
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8

Vilen, Esa Jaakko. "Muconic acids in bleach plant effluents." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq41048.pdf.

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9

Bedwell, Margaret Susan. "Bacteriological quality of fish farm effluents." Thesis, University of Hull, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321134.

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10

Thill, Patrick. "Hybrid remediation strategies for industrial effluents." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:f2259720-1b37-49a0-97b1-da7c385e8245.

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Many industrial effluents are toxic, difficult to treat and contain potentially valuable resources. Current treatment methods are expensive and unsustainable. Bioprocessing is a promising alternative, but poses multiple challenges due to the chemically complex nature and high variability of different industrial effluents. As a result, it benefits from being combined with advanced oxidation processes. In this study, the potential benefit of coupling bioprocessing with nanoscale zero-valent iron and electron beam treatment was examined. Both processes have shown great promise individually in env
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11

Cariven, Bernard. "Dephosphoration des effluents par voie biologique." Toulouse, INSA, 1986. http://www.theses.fr/1986ISAT0032.

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Situation du probleme de la dephosphoration par voie biologique et description des procedes appliques a l'echelle industrielle avant d'aborder l'etude experimentale d'un procede de contact-stabilisation. L'accent est mis sur le caractere instable des mecanismes de fixation du phosphore dans les cellules rendant impossibles des conditions de fonctionnement stables. La solution vise a inserer dans la chaine des composes phosphores intracellulaires un compose insoluble destine a stabiliser l'ensemble
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12

Cariven, Bernard. "Déphosphoration des effluents par voie biologique." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37596255b.

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13

Chakraborty, Samayita. "Biovalorization of liquid and gaseous effluents of oil refinery and petrochemical industry." Thesis, Paris Est, 2019. http://www.theses.fr/2019PESC2036.

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L'effluent liquide de la raffinerie de pétrole contient de l'anion sélénium toxique et du phénol, tandis que l'effluent gazeux contient du CO/syngas toxiques. Afin d'éliminer le phénol tout en réduisant les toxyanions de sélénia, une co-culture fongique bactérienne de Phanerochaete Chrysosporium et Delftia lacustris a été mise au point. Deux formes de co-culture de champignons et de bactéries ont été développées. Le premier concerne les bactéries et les champignons à croissance libre (co-culture en croissance suspendue), le second est la croissance de la biomasse bactérienne entourant la bioma
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14

HIGA, MARCELA C. "Aplicação de ensaios de toxicidade na avaliação da eficiência da radiação ionizante e da adsorção em zeólitas para o tratamento de efluentes coloridos." reponame:Repositório Institucional do IPEN, 2008. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11687.

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Made available in DSpace on 2014-10-09T12:54:45Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:07:18Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energéticas e Nucleares - IPEN/CNEN-SP
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15

Zuttah, Yawo. "Destruction de l'ammoniac dans les effluents miniers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0019/MQ49057.pdf.

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16

Nemer, Randa J. "Anaerobic-aerobic treatment of chemical industrial effluents." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26410.

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Several chemical industries in Canada discharge untreated effluents containing substantial amounts of organic pollutants. Environmental concern regarding the pollution of water bodies has led the authorities to issue stringent regulations with respect to the quality and quantity of wastewater that can be discharged. Chemical characterization and biotreatability of some waste streams generated by a chemical industry in Quebec was therefore undertaken. The study showed that two highly concentrated effluents were amenable to biological treatment. The first effluent, "plastifiant", was generated f
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17

Lascombe, Eric. "Treatment of Cr (VI) effluents using electroprecipitation." Thesis, Bangor University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273619.

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18

Davis, Susan. "Treatment of phenolic effluents with immobilised enzymes." Thesis, University of Kent, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236256.

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19

Senior, Kerry Charles. "Biotreatment of industrial effluents containing naphthalene sulphonate." Thesis, University of Kent, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270819.

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20

Abdelgafour, Djamila. "Epuration biologique des effluents a forte charge." Lyon, INSA, 1989. http://www.theses.fr/1989ISAL0045.

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Afin de dégager quelques fondements théoriques et pratiques permettant de procéder de manière efficace à l'épuration biologique d'eaux usées d'origines diverses, un réacteur aérobie à biomasse fixée avec boucle de recirculation et garnissage plastique a été construit au L. C. P. A. E. De l'INSA de Lyon. En cours d'étude et en vue d'une application industrielle, il est en outre apparu réellement indispensable d'envisager très sérieusement l'implantation d'un système de commande automatique de tels réacteurs. Dans un premier temps, les caractéristiques hydrodynamiques du réacteur ont été détermi
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21

Roberts, Lenn Darrell. "Benthic Macroinvertebrate Susceptibility to Trout Farm Effluents." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/35004.

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The direct effects of a Virginia trout farm on benthic macroinvertebrates were examined using multiple approaches. Static laboratory tests with the amphipod, Hyallela azteca, were conducted with exposures to water taken from a spring, effluent above a sedimentation basin, and effluent below a sedimentation basin. On-site mesocosms were constructed to expose previously colonized artificial substrates to the same treatments as the laboratory tests. Flat-headed mayflies were also collected from a nearby stream and transported to the mesocosms for a 10 day exposure. There was no significant di
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22

Maillard, Vincent M. "Characterization, Treatment, and Improvement of Aquacultural Effluents." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/30908.

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During the water quality and sludge characterization phase, average effluent quality over the course of a day was not found to be impaired during a 7-month sampling and monitoring study at the three trout farms. However, effluent quality was found to change significantly during times of high farm activity (i.e. feeding, harvesting, cleaning, etc.). Normalized Total Suspended Solids (TSS) concentrations were found to be as high as 115 mg/l during harvesting and 63 mg/l during feeding. Solids characterization studies proved farm waste solids degrade over time and that their particle size dist
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23

MIERZWA, JOSE C. "Estudo sobre tratamento integrado de efluentes quimicos e radioativos, introduzindo-se o conceito de descarga zero." reponame:Repositório Institucional do IPEN, 1996. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10448.

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Made available in DSpace on 2014-10-09T12:38:51Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:10Z (GMT). No. of bitstreams: 1 02810.pdf: 8898138 bytes, checksum: 9b668b43cd5cb62aa7ded0cd1c80d31f (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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24

Justo, Llopis Ana. "Advanced technologies applied to wastewater treatment plant effluents." Doctoral thesis, Universitat de Barcelona, 2015. http://hdl.handle.net/10803/379819.

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This thesis is formed as a summary of publications developed in the Chemical Engineering Department from the University of Barcelona. The six publications of this thesis are focused on the application of advanced technologies to Wastewater Treatment Plant (WWTP) effluents that are usually discharged to the aquatic environment. Water is an essential natural resource for the development of life and for human activities. Over the last few decades, water scarcity and water quality have become issues of major concern. Large amounts of water have been continuously contaminated, especially in deve
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25

Marin, Uribe Esteban. "Traitement des effluents de fromageries fermières par biofiltration." Master's thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/27753.

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Au Québec, l’industrie laitière est un secteur important de l’économie provinciale. Au Canada, près de 60 % des unités de fabrication de fromage sont situées dans la province de Québec et plus de deux milliards de litres de lait sont transformés en fromage à chaque année. En 2015, le nombre de fermes laitières québécoises s’élevait à 5 766. En moyenne, une ferme possède un cheptel de 60 vaches et livre près de 500 000 litres de lait par année. De plus, la production d’une vache sur cinq devient du lait de consommation, qui est simplement homogénéisé et pasteurisé. Le reste est transformé princ
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26

Neves, Catarina Maia Seco Seiça. "Treatment of aqueous effluents contaminated with ionic liquids." Doctoral thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14147.

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Doutoramento em Química<br>Ionic liquids are a class of solvents that, due to their unique properties, have been proposed in the past few years as alternatives to some hazardous volatile organic compounds. They are already used by industry, where it was possible to improve different processes by the incorporation of this kind of non-volatile and often liquid solvents. However, even if ionic liquids cannot contribute to air pollution, due to their negligible vapour pressures, they can be dispersed thorough aquatic streams thus contaminating the environment. Therefore, the main goals of this wor
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27

Marques, Carlos Filipe Conceição. "Treatment of aqueous effluents contaminated with ionic liquids." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/9546.

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Mestrado em Engenharia Química<br>Este trabalho visa o tratamento de efluentes aquosos contaminados com líquidos iónicos (LIs). Os LIs são sais que a temperaturas inferiores a 373 K e à pressão atmosférica permanecem no estado líquido. Isto deve-se ao tamanho e assimetria dos iões envolvidos na composição dos LIs que os faz apresentar propriedades distintas dos sais convencionais. Dado a serem compostos por iões, os LIs podem ser sintetizados consoante uma determinada finalidade e/ou propriedades necessárias para uma aplicação específica. Por apresentarem pressões de vapor desprezáveis, estes
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28

Silva, Ana Francisca Osório de Almeida Coelho e. "Bioproduction of polyhydroxyalkanoates from olive oil mill effluents." Master's thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/10710.

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Mestrado em Biotecnologia<br>O objetivo deste trabalho incidiu no desenvolvimento de um processo multi-stage económico para a produção de polímeros biodegradáveis, polihidroxialcanoatos (PHA), por culturas microbianas mistas, usando como matéria-prima águas residuais de lagares de azeite. Neste processo foram utilizadas águas residuais de lagares de azeite pré-fermentadas, nas quais 60% do conteúdo de CQO (Carência Química de Oxigénio) solúvel foi convertido em ácidos gordos voláteis (AGV) que são substratos mais directos para a produção de PHA. Esta corrente rica em AGV foi utilizada como ali
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29

Do, Ngoc Thanh Thuy. "Biological treatment and recycling of textile processing effluents." Thesis, De Montfort University, 2004. http://hdl.handle.net/2086/13296.

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In the present work, a mixed culture of Pseudomonas spp. capable of decolourising a range of selected textile dyes was isolated and used to develop a continuous culture system for the treatment of textile dye effluents. The bioprocess was optimised using biomass growth supports. The presence of a carbon source such as soluble wheat starch (0.2 % w/v) in dye solution media and effluent samples enhanced decolourisation. A polymer support (polyurethane foam) was used for immobilisation of "the bacteria in the laboratory-scale bioreactor, and helped create an integrated anaerobic I aerobic conditi
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30

Cabanes, Frédéric Frèche Michèle. "Déphosphatation des effluents précipitation et valorisation du phosphore /." Toulouse : INP Toulouse, 2006. http://ethesis.inp-toulouse.fr/archive/00000223.

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31

Cabanes, Frédéric. "Déphosphatation des effluents : précipitation et valorisation du phosphore." Phd thesis, Toulouse, INPT, 2006. http://oatao.univ-toulouse.fr/7412/1/cabanes.pdf.

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Ce mémoire porte sur la récupération-valorisation du phosphore contenu dans les effluents. Le procédé repose sur la précipitation en milieu basique d'un phosphate de calcium très insoluble (hydroxyapatite) soit en lit fluidisé de particules d'hydroxyapatite, soit en cuve agitée. Dans le cas d'un effluent synthétique ne contenant que du phosphore (50mg/L), la teneur de l'effluent après traitement est abaissée à une valeur inférieure à 1mg/L lorsque sont convenablement choisis la température (35°C) et le pH (7.5). Les phénomènes de précipitation, croissance cristalline, enrobage ont été étudiés.
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32

Cabanes, Frédéric. "Déphosphatation des effluents : précipitation et valorisation du phosphore." Phd thesis, Toulouse, INPT, 2006. https://hal.science/tel-04576494.

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Ce mémoire porte sur la récupération-valorisation du phosphore contenu dans les effluents. Le procédé repose sur la précipitation en milieu basique d'un phosphate de calcium très insoluble (hydroxyapatite) soit en lit fluidisé de particules d'hydroxyapatite, soit en cuve agitée. Dans le cas d'un effluent synthétique ne contenant que du phosphore (50mg/L), la teneur de l'effluent après traitement est abaissée à une valeur inférieure à 1mg/L lorsque sont convenablement choisis la température (35°C) et le pH (7. 5). Les phénomènes de précipitation, croissance cristalline, enrobage ont été étudiés
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33

Martinez, Triana Alvaro. "Transmembrane distillation for recovery of industrial aqueous effluents." Electronic Thesis or Diss., Université de Lorraine, 2023. https://docnum.univ-lorraine.fr/ulprive/DDOC_T_2023_0140_MARTINEZ_TRIANA.pdf.

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Le sujet majeur de cette thèse porte sur l'étude conceptuelle d'un procédé de distillation transmembranaire pour la valorisation d'effluents industriels. Les enjeux scientifiques étudiés sont propres aux domaines couverts par les procédés de séparations avancés : Matériaux : polymères denses ou poreux, validations expérimentales à l'échelle laboratoire des modèles de transfert, modélisation du transfert de matière multiconstituants, transferts couplés matière / chaleur, simulation et optimisation de procédés. Dans cette thèse, les enjeux sont traités par simulation des procédés. Une brique d'o
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34

Zongo, Inoussa. "Étude expérimentale et théorique du procédé d'électrocoagulation : application au traitement de deux effluents textiles et d'un effluent simulé de tannerie." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL066N/document.

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L’électrocoagulation est une technique de traitement des eaux usées basée sur la dissolution d’anode sacrificielle de fer ou d’aluminium. Ces métaux se dissolvent sous formes de cations Fe2+ puis Fe3+ et Al3+ qui vont former des hydroxydes de métal qui entraînent par adsorption les impuretés de l’effluent en diminuant le potentiel Zêta de ces impuretés. Le réacteur électrochimique utilisé est constitué de deux électrodes métalliques (Fe ou Al) planes et parallèles qui laissent passer entre elles l’effluent à traiter. Des densités de courant de 50 à 200 A/m2 ont été appliquées pour traiter les
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35

Almeida, Hugo F. D. "Treatment of aqueous effluents contaminated with active pharmaceutical ingredients." Doctoral thesis, Universidade Nova de Lisboa, Instituto de Tecnologia Química e Biológica António Xavier, 2017. http://hdl.handle.net/10362/78785.

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"The need to significantly improve human living conditions led to a large increase in the worldwide consumption of pharmaceutical drugs. Over the past few years, the development of advanced analytical tools and investigations on wastewater samples confirmed the presence of residual amounts of active pharmaceutical ingredients (APIs) in wastewater treatment plants (WWTPs), sewage treatment plants (STPs), groundwater and drinking water. Even at low concentrations (ng.L-1 – μg.L-1), the regular contact and ingeston of APIs can lead to deleterious effects towards living organisms. Numerous
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36

Vipat, Vasudha. "A study of anaerobic treatment of CTMP/TMP effluents." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28086.

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Prior to any extensive anaerobic treatment studies, it is essential to assess the impact of the components of the wastewater on the anaerobic microorganisms. Therefore, a simple, effective technique to assess the toxicity and degradability of various components of the wastewater is necessary. In this thesis, a technique is developed for measuring the biodegradability (Biochemical Methane Potential — BMP) and toxicity (Anaerobic Toxicity Assay — ATA) of the effluent components subjected to anaerobic treatment. The ATA measures the adverse effect of a compound on the rate of the total gas produ
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37

Addison, Jesse Ward. "The formation of halonitromethanes in wastewater treatment plant effluents." Connect to this title online, 2008. http://etd.lib.clemson.edu/documents/1211390627/.

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38

Carr, Oliver John. "Fish-farm effluents and their effects on river biology." Thesis, University of Hull, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328864.

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39

O'Connor, James Francis. "The removal of lead pollutants from effluents using zeolites." Thesis, City University London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304673.

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40

CERNA, CESAR ENRIQUE LEYTON. "DEGRADATION OF AMONIA IN EFFLUENTS WITH CARO´S ACID." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=11883@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>A presente pesquisa foi direcionada à degradação de amônia em efluentes industriais pela oxidação com Ácido de Caro. A amônia é considerada um poluente por ter efeitos ecotoxicológicos em corpos hídricos. A abordagem selecionada para remoção de amônia por oxidação levou à escolha do Ácido de Caro por este apresentar características de ser um poderoso agente oxidante e por ser este adequado a uma tecnologia li
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41

CURTY, ADRIANA FAVACHO. "ECOLOGICAL TREATMENT OF DOMESTIC EFFLUENTS WITH USE OF WETLANDS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2018. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36550@1.

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A presente dissertação trata da análise do tratamento de efluentes de esgotos domésticos, processado na ETE Ponte dos Leites, município de Araruama, Rio de Janeiro, que se destaca-se por seu enfoque ecológico. A escolha dessa ETE se deu por ser exemplo brasileiro de utilização de recursos naturais na purificação de esgotos, os wetlands construídos, nos quais as macrófitas absorvem nitrogênio e fósforo do efluente, elementos que constituem sua fonte de nutrição. Tal tratamento imita o ciclo natural, recuperando flora e fauna, preservando o meio ambiente. Os resultados da pesquisa a qual foi bas
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Huang, Peng. "Chitosan/montmorillonite nanocomposites for the treatment of dyehouse effluents." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/20983/.

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Dyehouse effluents often cause severe water pollution. There is an urgent need to develop effective and economically variable techniques for the treatment of the dyeing process wastewaters. Chitosan, an environmentally friendly and biodegradable natural polymer, exhibits promising potential for the effective treatment of dyehouse effluents. Due to its specific properties, montmorillonite is also gaining interest in removing organic pollutants from aqueous compositions. The combination of these two adsorbents has resulted in the creation of materials that lead to the enhanced decoloration of dy
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Holah, J. T. "The control of helminths in farm and sewage effluents." Thesis, Nottingham Trent University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370172.

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Astley, Katrina Nicola. "The ecotoxicological assessment of complex effluents using invertebrate biomarkers." Thesis, University of Plymouth, 1998. http://hdl.handle.net/10026.1/2024.

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A suite of biomarkers was developed using the crab Carcinus maenas and the mussel Mytilus edulis as test organisms. The ability of the biomarkers to differentiate amongst the major toxic components and to indicate the concentration of chemical mixtures was evaluated in the laboratory. Biomarkers were also applied in a field trial and their potential to monitor environmental water quality in a chemically contaminated estuary investigated. The results from the biomarker assays were compared with and validated against two commonly used toxicity tests (Tisbe battagliai LC-50, and Microtox®). Novel
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Fell, Christopher John. "Monitoring and control of anaerobic digesters treating industrial effluents." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/32621.

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Increasing charges by the private utilities for the treatment of industrial waste water are making on-site effluent treatment more attractive. On-site anaerobic digestion is increasingly being used by food processing factories as a cost effective solution to waste liquid waste disposal. Discharge of treated effluent to sewer or water course requires compliance to a maximum admissible concentration (MAC) value, therefore, there is a need for careful control of on-site waste water treatment. This research investigates the treatment of effluent from instant coffee production. This results in a li
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Tronche, Eric. "Décontamination des effluents liquides faiblement radioactifs par voie électrochimique." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT065G.

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Dans le cadre des traitements de decontamination des effluents liquides radioactifs, l'etude des procedes electrochimiques a ete retenue par le commissariat a l'energie atomique au centre d'etudes de cadarache. Ce travail presente dans un premier temps les principales techniques utilisees pour decontaminer les solutions. Ensuite, les traitements d'electrodeposition et d'electrodissolution anodique sont testes sur effluents radioactifs reels puis compares. La premiere technique permet d'eliminer l'isotope 106 du ruthenium avec un rendement de 99,9 pour-cent, mais les autres radioelements ne son
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Schaffner, Frédéric. "Déminéralisation par électrodialyse des effluents de fabrication du diester." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT046G.

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Les effluents issus de la transesterification des huiles vegetales contiennent du glycerol qui par son cours mondial soutenu participe activement a la rentabilite economique du procede industriel. Ce glycerol est pollue par de la soude, du methanol et des savons et necessite une etape de purification. Pour eliminer cette charge ionique nous avons utilise l'electrodialyse, une technique electromembranaire propre. Apres avoir montre que la presence de savons etait incompatible avec un tel traitement nous les avons neutralise en acides gras. Apres ecremage des acides gras et distillation du metha
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Suryani, Sri. "Compréhension des spectres ultraviolets des eaux et des effluents." Aix-Marseille 1, 1995. http://www.theses.fr/1995AIX11034.

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La majorite des composes organiques des eaux ont des groupements fonctionnels contenant des liaisons insaturees qui possedent la propriete d'absorber dans certaines parties de la region uv. Par ailleurs, certains composes mineraux (nitrates, chrome,) presentent aussi une absorption dans l'uv. Les donnees des spectres des produits purs (organiques et mineraux) en milieu aqueux sont relativement peu nombreuses dans la litterature. Ce travail permet de les completer et de disposer par la suite d'une base de donnees. Par ailleurs, dans l'etude de la degradation des matieres organiques (anthropique
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Haihal, Imane. "Dépollution catalytique des effluents gazeux contenant des hydrocarbures aromatiques." Compiègne, 2004. http://www.theses.fr/2004COMP1509.

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La désorption thermique représente une option majeure dans les filières de décontamination des sols pollués. Elle comporte deux étapes : volatilisation des polluants et traitement des gaz désorbés. L'objectif de notre travail était d'examiner la faisabilité de la dépollution de ces gaz par oxydation catalytique totale. L'oxydation totale de certaines molécules d'hydrocarbures aromatiques a été étudiée sur des catalyseurs à base d'oxyde de manganèse supporté sur SiO2, Al2O3 et TiO2. L'activité catalytique varie fortement avec le support et la teneur en Mn, MnOx/TiO2 5% Mn donnant les meilleures
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Aoudjehane, Malika. "Traitement par flottation des effluents aqueux charges en hydrocarbure." Toulouse, INSA, 1986. http://www.theses.fr/1986ISAT0013.

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Etude des mecanismes mis en jeu dans la flottation. Partie i: caracterisation des interactions bulle gaz-goutte hydrocarbure. Influence de divers additifs sur l'efficacite des rencontres bulle-goutte, bulle-bulle et goutte-goutte. Partie ii: etude de la dynamique des rencontres dans un pilote equipe d'une agitation mecanique. Enfin la realisation d'essai de decantation avec agitation, sans injection d'air, permet d'evaluer l'importance du phenomene de turbulence sur la coalescence goutte-goutte dans la separation par flottation
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