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Dissertations / Theses on the topic 'Emerging contaminants in water'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 2023

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1

Law, Cheuk Fung Japhet. "Catalytic advanced oxidation processes for degradation of environmental emerging contaminants." HKBU Institutional Repository, 2019. https://repository.hkbu.edu.hk/etd_oa/610.

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In recent years, the increasing release of trace organic chemicals to the aquatic environment have been problematic to both the ecosystem and the human society. These trace organic chemicals, regarded as emerging contaminants, include different categories of chemicals, which are either deemed to be safe for human consumption or they are naturally occurring compounds. As a newly recognized class of emerging contaminant, artificial sweeteners are proven to be one of the most ubiquitous classes of emerging contaminants in environmental waters. Its transformation to different suite of TPs during w

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Jiang, Yanan. "Emerging contaminants : environmental fate of artifical sweeteners." HKBU Institutional Repository, 2013. http://repository.hkbu.edu.hk/etd_ra/1508.

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3

Janna, Hussein. "Occurrence and removal of emerging contaminants in wastewaters." Thesis, Brunel University, 2011. http://bura.brunel.ac.uk/handle/2438/6097.

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Over the past decade, the occurrence and removal of emerging contaminants in the environment has received much attention. Both natural and synthetic progestogens, which are hormones, and also benzotriazoles are two examples of such emerging contaminants. Sewage treatment works are recognised as one of the main routes of these compounds to the environment. Low concentrations (nanograms per litre) of biologically active chemicals may exhibit an impact on aquatic organisms and human health. This study was undertaken to determine the occurrence and removal of these two classes of chemicals at sewa

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4

Vesely, William C. "Emerging Contaminants: Occurrence of ECs in Two Virginia Counties Private Well Water Supplies and Their Removal from Secondary Wastewater Effluent." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/83829.

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Emerging contaminants (ECs) are chemicals such as pharmaceuticals and personal care products that have been detected in various environmental matrices, including drinking water supplies at trace concentrations (ng/L-ug/L or ng/kg-ug/kg). Current wastewater treatment plant technology is largely ineffective at removing ECs. The objectives of this investigation were to: 1) determine the occurrence of ECs in private well water supplies in Montgomery and Roanoke County, VA 2) quantify the concentrations of three ECs in selected private water supplies; 3) examine the relationship between water quali

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Alvarez, Corena Jose Ricardo. "Heterogeneous Photocatalysis For The Treatment Of Contaminants Of Emerging Concern In Water." Digital WPI, 2015. https://digitalcommons.wpi.edu/etd-dissertations/320.

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"The simultaneous degradation of five organic contaminants: 1,4 dioxane, n-nitrosodimethylamine, tris-2-chloroethyl phosphate, gemfibrozil, and 17β estradiol, was investigated using a 1 L batch water-jacketed UV photoreactor utilizing titanium dioxide (TiO2) nanoparticles (Degussa P-25) as a photocatalyst. The primary objectives of this research were: (1) to experimentally assess the feasibility of heterogeneous photocatalysis as a promising alternative for the degradation of organic compounds in water; and (2) to model the chemical reactions by the application of two different approaches base

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Bhattarai, Bikash. "Development of novel adsorbents for the removal of emerging contaminants from water." Master's thesis, Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/148072.

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Civil Engineering<br>M.S.E.<br>Emerging contaminants (ECs) such as estrogen hormones, perfluoro compounds (PFCs), bisphenol-A (BPA), and 1,4-dioxane have been detected in natural water at many places. The existing conventional wastewater treatment systems are not designed for the removal of these contaminants. This critical issue leads to the need for the development of advanced and effective technologies.β-cyclodextrin (β-CD) is a glucose-based molecule which has high affinity for different organic contaminants by the formation of host/guest inclusion complexes. In this research, water solubl

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Upton, Ethan A. "Sinkhole Lake Infiltration of Contaminants of Emerging Concern from Onsite Water Treatment Systems." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7977.

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The advancement in synthetic chemicals commonly referred to as contaminants of emerging concern (CECs) and their application has led to an increase in environmental pollution. The use of septic tanks otherwise referred to as onsite water treatment systems (OWTS), promotes the introduction of CECs into the environment while allowing little in the way of remediation. In order to study the impacts of CECs from OWTS as they infiltrate the environment and the aquifer system, water, sediment, and vegetation samples were collected around a sinkhole lake surrounded by residential housing using OWTSs.

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8

Bhattarai, Bikash. "DEVELOPMENT OF NOVEL ADSORBENTS FOR THE REMOVAL OF EMERGING CONTAMINANTS FROM WATER AND WASTEWATER." Diss., Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/332757.

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Civil Engineering<br>Ph.D.<br>There are many reports indicating the presence of various emerging contaminants (ECs) in treated wastewater and other water sources. The detection of such contaminants in the environment and the ability of these contaminants to pose potential threats to the environment at very low concentrations have led to a need for more efficient treatment technologies. Cyclodextrins (CDs) have gained significant interest as an alternative adsorbent for water and wastewater treatment because of their unique physico-chemical characteristics and excellent selectivity towards orga

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Jiang, Wenting, and 江文婷. "A systematic review of the cancer risks and industrial contamination in freshwater resources in China." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/193825.

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Objectives To evaluate the association between exposures to the main chemical contaminants released by the industry in freshwater and the rise in cancer cases among the population in China. Methods A systematic review was undertaken of the scientific literature compiled in the MEDLINE (via PubMed©), Google scholar, Web of Knowledge. The descriptors used were "cancer", "water pollution”, “industry” and “chemical", limited to studies that relevant to the research questions. Articles selected were of any type in English, from the inception of the indexing of the primary source until July 2

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10

Kwok, Wing-hin Kevin Patrick. "On the derivation of Water and Sediment Quality Guidelines : some pressing issues and their resolutions /." Click to view the E-thesis via HKUTO Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B2181963.

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11

De, Luca Antonella. "Fenton and Photo-Fenton like at neutral pH for the removal of emerging contaminants in water and wastewater effluents." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/399786.

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In the last decades, the scientific community has been involved in the research of new kinds of contaminants generally known as of “emerging concern” (CECs). The harmfulness of CECs, even at small concentrations as well as, property of bioaccumulation and persistence, makes them extremely dangerous for the human health. The scientific community is constantly researching about novel treatments able to achieve the removal of these contaminants. Advanced Oxidation Processes (AOPs) are considered one of the most useful treatments to achieve CECs degradation. Among the AOPs, Fenton and photo‐Fen

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12

Sang, Ziye. "Probing the environmental fate of emerging contaminants and their ecological impacts on aquatic environment." HKBU Institutional Repository, 2016. https://repository.hkbu.edu.hk/etd_oa/295.

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In recent years, new classes of aquatic pollutants have received growing concerns from the environmentalists due to their unclear effects and increasing release into the water environment. Generally, before entering the aquatic ecosystem, many of these emerging contaminants are deemed safe active ingredients in the commercial products. This may lead to the underestimation of their potential impacts to the environment, once these substances were drained into the natural waters. So far, a wide range of emerging contaminants are still not well studied. In this thesis work, the environmental behav

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Rojas, Cardozo Mario Roberto. "ADVANCED OXIDATION OF CHEMICALS OF EMERGING CONCERN: MODELING AND EXPERIMENTAL SIMULATION." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202534.

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Every year, new trace chemicals are detected in natural waters as well as treated wastewater effluents all over the world. Public health and environmental concerns have driven the development of new technologies to treat water and eliminate chemicals that may pose risk to humans and wildlife. This work presents a detailed statistical analysis on the removal of some of the most widely occurring chemicals of emerging concern in wastewater based on information available in the literature. Results show that existing water treatment processes only partially eliminate most of these contaminants. Adv

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Yamal, Turbay Evelyn. "Efficient operation of photo-Fenton process for the treatment of emerging contaminants in water solutions." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/134805.

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The growth of population density in some areas of the planet and the increasing fast advances in technology and energy issues, have resulted in a remarkable increment in the necessity for goods and services, with a subsequent over-exploitation and pollution of the environmental resources. Water, a non-renewable resource, does not escape from the harmful effects of human activity and its increasing pollution levels threaten the normal development of ecosystems and life as well. In the last decades, the occurrence of a new generation of contaminants has been detected in wastewaters, surface and

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Raimundo, Cassiana Carolina Montagner 1981. "Contaminantes emergentes em água tratada e seus mananciais = sazonalidade, remoção e atividade estrogênica." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249643.

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Orientador: Wilson de Figueiredo Jardim<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-19T06:01:40Z (GMT). No. of bitstreams: 1 Raimundo_CassianaCarolinaMontagner_D.pdf: 6486329 bytes, checksum: eb2082b97701f19b66fc4e6dc033da3f (MD5) Previous issue date: 2011<br>Resumo: O objetivo deste trabalho foi avaliar, através de um perfil anual, a qualidade dos mananciais e da água tratada de Campinas (SP) em relação à presença de cafeína, estrona, 17b-estradiol, estriol, progesterona, testosterona, 17a-etinilestradiol, mestranol, l

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Saccà, Maria Ludovica <1982&gt. "Emerging contaminants in agricultural ecosystems: impact of selected pharmaceutical on water and soil ecology and pratical implications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2010. http://amsdottorato.unibo.it/3083/.

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Pharmaceuticals are useful tools to prevent and treat human and animal diseases. Following administration, a significant fraction of pharmaceuticals is excreted unaltered into faeces and urine and may enter the aquatic ecosystem and agricultural soil through irrigation with recycled water, constituting a significant source of emerging contaminants into the environment. Understanding major factors influencing their environmental fate is consequently needed to value the risk, reduce contamination, and set up bioremediation technologies. The antiviral drug Tamiflu (oseltamivir carboxylate, OC) h

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Al, Anazi Abdulaziz H. "Synthesis of Recyclable Magnetic Metal-ferrite Nanoparticles for the Removal of Contaminants of Emerging Concern in Water." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1543922143864275.

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Edziyie, Regina E. "Characterization of Triclocarban, Methyl- Triclosan, and Triclosan in Water, Sediment, and Corbicula Fluminea (Müller, 1774) Using Laboratory, in Situ, and Field Assessments." Thesis, University of North Texas, 2011. https://digital.library.unt.edu/ark:/67531/metadc67978/.

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In the last decade emerging contaminants research has intensified in a bid to answer questions about fate, transport, and effects as these chemicals as they get released into the environment. The chemicals of interest were the antimicrobials; triclocarban (TCC) and triclosan (TCS), and a metabolite of triclosan, methyl triclosan (MTCS). This research was designed to answer the question: what is the fate of these chemicals once they are released from the waste water treatment plant into receiving streams. Three different assessment methods; field monitoring, in-situ experiments, and laboratory

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Jones, Steven Michael. "Nanofiltration Rejection of Contaminants of Emerging Concern from Municipal Water Resource Recovery Facility Secondary Effluents for Potable Reuse Applications." Thesis, University of Arkansas, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10107894.

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<p> As reuse of municipal water resource recovery facility (WRRF) effluent becomes vital to augment diminishing fresh drinking water resources, concern exists that conventional barriers may prove deficient and the upcycling of contaminants of emerging concern (CECs) could prove harmful to human health and aquatic species if more effective and robust treatment barriers are not in place. </p><p> There are no federal Safe Drinking Water Act (SDWA) regulations in place specifically for direct potable reuse (DPR) of WRRF effluent. Out of necessity, some states are developing their own DPR reuse r

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Valls, Cantenys Carme. "Development of analytical methodologies for the determination of emerging contaminants and phosphorus compounds." Doctoral thesis, Universitat de Girona, 2014. http://hdl.handle.net/10803/284742.

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The presence of anthropogenic chemical substances in water resources can affect the ecological balance of aquatic systems, as well as human health, and therefore it is necessary to control their presence in water bodies. The objective of this thesis is the development of analytical methodologies for the determination of phosphorus species and organic micropollutants in water samples. Firstly, two speciation methods for the determination of simple and condensate phosphorus oxoanions have been developed, using HPLC separation coupled to ICP-AES in one methodology and to ICP-MS in the other. Two

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Adeleye, Adeola Patience. "Perfluorinated compounds, bishenol a and acetaminophen in selected waste water treatment plants in and around Cape Town, South Africa." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2331.

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Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2016.<br>The release of wastewater to the aquatic environment is most likely to introduce some trace levels of organic contaminants, some of which may be toxic, carcinogenic, or endocrine disruptors, as well as, persistent in the environment. Additionally, increasing contamination of surface waters by wastewater effluents has made water treatment processes more challenging and expensive. The presence of these pollutants in the receiving water body may have negative effects on aquatic species and often pose potential human hea

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Solano, Marize de Lourdes Marzo [UNESP]. "Abordagem metodológica para a valuação do petencial desregulador endócrino de água de beber: estudo com amostras reais." Universidade Estadual Paulista (UNESP), 2014. http://hdl.handle.net/11449/123331.

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Made available in DSpace on 2015-05-14T16:53:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-02-10Bitstream added on 2015-05-14T16:58:55Z : No. of bitstreams: 1 000829087.pdf: 399761 bytes, checksum: 6162c9ec05a5f035f48858f6dc7daf87 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>If contaminated waters are treated by conventional processes (WTP) emerging contaminants are not fully removed and will remain in the drinking water (DW). We investigated the potential for endocrine disruption of two DW samples collected in 2010 and 2012 from a WTP located in São

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Solano, Marize de Lourdes Marzo. "Abordagem metodológica para avaliação do potencial desregulador endócrino de água de beber : estudo com amostras reais /." Botucatu, 2014. http://hdl.handle.net/11449/123331.

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Orientador: João Lauro Viana de Camargo<br>Coorientador: Gisela de Aragão Umbuzeiro<br>Banca: Ione Pellegatti Lemonica<br>Banca: Patrícia Carvalho Garcia<br>Banca: Anderson Joel Martino Andrade<br>Banca: Daniela Cristina Ceccatto Gerardin<br>Resumo: Não disponível<br>Abstract: If contaminated waters are treated by conventional processes (WTP) emerging contaminants are not fully removed and will remain in the drinking water (DW). We investigated the potential for endocrine disruption of two DW samples collected in 2010 and 2012 from a WTP located in São Paulo, Brazil. Water samples were extract

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White, Madeleine Michael Isabella. "Optimization and Longevity of Functionalized Multi-Walled Carbon Nanotube-Enabled Membranes for Water Treatment." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2174.

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Water scarcity is a growing concern at the global scale. Large scale water reuse is growing both in necessity and popularity. Before water reuse can be performed efficiently on a large scale or be used for potable supply, even indirectly, contaminants of emerging concern (CECs) will need to be treated at the full scale. Advanced oxidation processes (AOPs) are a form of advanced water treatment capable of treating a wide range of CECs. This study contributes to the growing field of AOPs and more specifically AOPs using ozone combined with functionalized multi-walled carbon nanotubes (MWCNTs). O

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Abdelraheem, Wael H. M. "Catalytic and Photocatalytic Removal of Contaminants of Emerging Concerns (CECs) and Per-/Polyfluoroalkyl Substances (PFAS) from Wastewater Effluents for Water Reuse Applications." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613751353837349.

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Garner, Emily Dawn. "Occurrence and Control of Microbial Contaminants of Emerging Concern through the Urban Water Cycle: Molecular Profiling of Opportunistic Pathogens and Antibiotic Resistance." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/93743.

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In an era of pervasive water stress caused by population growth, urbanization, drought, and climate change, limiting the dissemination of microbial contaminants of emerging concern (MCECs) is of the utmost importance for the protection of public health. In this dissertation, two important subsets of MCECs, opportunistic pathogens (OP) and antibiotic resistant genes (ARG), are studied across several compartments of the urban water cycle, including surface water, stormwater, wastewater, recycled water, and potable water. Collectively, this dissertation advances knowledge about the occurrence of

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Rowsell, Victoria Francesca. "Estimating the removal of micropollutants and emerging contaminants from sewage treatment processes in preparation for the implementation of the Water Framework Directive." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5567.

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Public awareness on the impacts that micropollutants and emerging contaminants have on aquatic resources has increased in recent decades and has become a significant driver for reducing levels of contaminants in the environment. The most recent and comprehensive initiative of the European Union in the area of water protection is the Water Framework Directive (WFD), which entails the application of new technical standards for surface water quality. It has been reported that sewage treatment works (STWs) are a major source of micropollutants for receiving aquatic environments. As a result of thi

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Herrero, Gil Pol. "Analytical methods for the determination and evaluation of emerging organic contaminants in environmental waters and sludge." Doctoral thesis, Universitat Rovira i Virgili, 2014. http://hdl.handle.net/10803/320184.

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Aquesta tesi doctoral se centra en el desenvolupament de mètodes analítics per determinar famílies poc estudiades de contaminants orgànics emergents en aigües ambientals i mostres de llots de depuradora. Els compostos inclosos en aquesta Tesi són els glucocorticoides, els ionòfors de polièter, les benzotriazoles, les benzotiazoles, les benzenosulfonamides i els ful·lerens. En aquesta Tesi, es demostren les capacitats ofertes per les tècniques de determinació d'avantguarda, tals com la "ultra-high performance liquid chromatography (UHPLC)" i la "Asymmetrical flow field-flow Fractionation (AF

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Blanco, Ortiz Albert. "Detección y caracterización de virus emergentes en su ciclo ambiental." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/673934.

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Besides classic enteric viruses such hepatitis A virus and norovirus, there are other viruses that can reach water sources without being part of their transmission route. Some of these pathogens are enveloped viruses, which complicates their recovery with the usual concentration methods for the classic naked enteric viruses. Glass wool filtration followed by polyethylene glycol (PEG) 6000 precipitation is cheap and reliable for recovering non-enveloped viruses, but is inefficient for the concentration of enveloped viruses. Thus, the first goal of this Thesis was the optimization of the glass

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Pais, Goyache Irene. "DEVELOPMENT OF A CHEMICAL FINGERPRINT FOR DETECTING UNTREATED HUMAN SEWAGE POLLUTION IN SURFACE WATER." Master's thesis, Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/360924.

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Civil Engineering<br>M.S.Env.E.<br>Untreated human sewage pollution in surface water is of concern because it contributes to the degradation of aquatic ecosystems and it could be a potential hazard to human health. Also, any pollution of surface water, which ultimately supplies drinking water, may affect the drinking water quality. Improper operation and maintenance of separate storm sewer systems are prominent contributors of untreated sewage to source waters, resulting from illicit connections, leakage of sewers, or cross-connections. This thesis studied anthropogenic markers to track untrea

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Gilart, Alzuria Núria. "Preparation and application of novel selective and polar materials for sorptive extraction of emerging contaminants from environmental waters." Doctoral thesis, Universitat Rovira i Virgili, 2014. http://hdl.handle.net/10803/275958.

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The aim of this Doctoral Thesis is the development of novel polymeric materials for different sorptive extraction techniques, such as solid-phase extraction (SPE) and stir bar sorptive extraction (SBSE). Both techniques were applied in liquid-chromatography and tandem mass spectrometry (LC-MS/MS) for determining a group of emerging contaminants, such as pharmaceuticals, illicit drugs and personal care products, from wastewater samples. To improve the detection of these contaminants in several environmental samples at low levels of concentrations, extraction techniques have to enable a high

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Aceña, i. Sánchez Jaume. "Transformació i metabolisme de fàrmacs al medi aquàtic mitjançant l’espectrometria de masses d'alta resolució." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/462804.

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En la societat actual, els fàrmacs són imprescindibles per a millorar la qualitat de vida de les persones però la seva activitat biològica inherent a la seva naturalesa genera una creixent preocupació pels possibles efectes als ecosistemes. Els fàrmacs poden arribar al medi aquàtic i produir una exposició crònica d'organismes, els quals poden resultar afectats. Molts estudis conclouen que per una avaluació més completa és necessari tenir en compte les possibles transformacions que pateixen aquests compostos al medi ambient ja que els productes resultants poden retenir l’activitat biològica de

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Perréard, Camille. "Surface functionalization strategies for the design of a lab-on-a-chip integrating an aptamer-based molecular capture for the analysis of emerging water contaminants." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066352/document.

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Développés pour améliorer la santé et le bien-être, certains composés pharmaceutiques sont désormais sous haute surveillance car considérés comme des contaminants émergents des eaux. Pour répondre à ce nouvel enjeu, nous visons à développer un microsystème d'analyse permettant l'identification et la quantification de ces contaminants dans des échantillons d'eau. L'aspect original de ce microsystème repose sur l'intégration au sein du canal d'une zone de préconcentration dans laquelle sont immobilisés des ligands (aptamères dans notre étude), permettant l'extraction sélective de la cible et sa

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Han, Changseok. "Monitoring and Removal of Water Contaminants of Emerging Concern| Development of A Multi-Walled Carbon Nanotube Based-Biosensor and Highly Tailor-Designed Titanium Dioxide Photocatalysts." Thesis, University of Cincinnati, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3622058.

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<p> In this dissertation, as a monitoring technology for cyanotoxins, a multiwalled carbon nanotube (MWCNT)-based electrochemical biosensor was developed to determine microcystin-LR (MC-LR), a potent cyanobacterial toxin, in sources of drinking water supplies. The performance of the MWCNT array biosensor is evaluated using micro-Raman spectroscopy, X-ray photoelectron spectroscopy, cyclic voltammetry, optical microscopy, and Faradaic electrochemical impedance spectroscopy. A linear dependence of the electron-transfer resistance on the MC-LR concentration is observed in the range of 0.05 to 20

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López, Serna Rebeca. "Análisis y destino de residuos farmacéuticos en aguas subterráneas, superficiales y residuales." Doctoral thesis, Universitat de Barcelona, 2013. http://hdl.handle.net/10803/128799.

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Los fármacos, compuestos químicos con actividad biológica, y sus productos de transformación, metabolitos y otros derivados en las plantas de tratamiento y en el medio ambiente, con actividad farmacológica remanente, son contaminantes antropogénicos que, en muchos casos, están llegando al medioambiente a través de las aguas residuales, y son las aguas superficiales el primer y principal compartimento ambiental destino. Este es un hecho que, en la actualidad, es ya ampliamente reconocido por la comunidad científica, tras el desarrollo de métodos de análisis capaces de la determinación de esto

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Cruz, Alcalde Alberto. "Contribution to Performance Characterization and Kinetic Modelling of Micropollutants Abatement in Water and Wastewater by Ozone-based Oxidation Processes." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/667016.

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Ozonation is nowadays a competent technology for micropollutant oxidation in wastewater effluents. The combination of ozone with hydroxyl radical formed through ozone decomposition is effective in the abatement of a number of organic compounds. However, there are still some points to be addressed for a more efficient application of ozone-based processes to wastewater treatment and reclamation. There are, for instance, several organic compounds that react very slowly with ozone. They are known as ozone-resistant micropollutants. If a high quality water is wanted to be obtained, these substances

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Bunch, Aubrey R. "Abundance of nonprescription pharmaceuticals in central Indiana streams and effects on sediment microbial activity." Muncie, IN : Ball State University, 2009. http://cardinalscholar.bsu.edu/640.

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Beltran, Carbó Antoni. "Synthesis of novel molecularly imprinted polymers and their application to the solid-phase extraction of water-based matrices." Doctoral thesis, Universitat Rovira i Virgili, 2010. http://hdl.handle.net/10803/9049.

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La present tesi s'ha desenvolupat dintre de la línia de recerca que el grup té sobre el desenvolupament de nous sorbents polimèrics per a aplicar-los com a sorbents en extraccions en fase sòlida. <br/>En aquest cas, els sorbents sintetitzats són altament selectius per a la molècula d'interès i es coneixen com a sorbents d'empremta molecular. <br/>Pel que fa al mètode de síntesi s'han explorat diferent tipus de polimeritzacions així com diferents tipus d'interacció entre els components que constitueixen el polímer a fi de millorar tant el procés de síntesi com el reconeixement de la molècula ob

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Kwok, Wing-hin Kevin Patrick, and 郭穎軒. "On the derivation of Water and Sediment Quality Guidelines: some pressing issues and theirresolutions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42181963.

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Souza, Maiara Priscilla de. "Determinação de contaminantes emergentes em água utilizando microextração adsortiva em barra (BAμE) e UHPLC-MS/MS". Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/10632.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The emerging pollutants are substances that enter continuously in the environment and are being more recognize due to the advancement of instrumental and sample preparation techniques. These contaminants include several chemical classes, such as pharmaceuticals, hormones, personal care products, flame retardants and others. Water is one of the most susceptible matrix since the sewage discharge is one of the main routes of environmental pollution. Bar adsorptive microextration (BAμE) has shown great analytical capacity for the analy

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Ademoyegun, Olufemi Temitope. "Evaluation of some pharmaceutical and personal care products and pesticide residues in selected wastewater treatment plants and receiving watersheds in Eastern Cape, South Africa." Thesis, University of Fort Hare, 2017. http://hdl.handle.net/10353/2922.

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Emerging organic contaminants (EOCs) have been the focus of global environmental research for over three decades. EOCs have caused widespread concern due to their extensive use. As EOCs were designed to correct, enhance or protect a specific physiological, their target effects in humans and/or farm stocks are relatively well known and documented. However, there is limited knowledge about their unintended effects in the environment. To address the occurrence, distribution and fate of EOCs in the environment, efficient and reliable analytical methods are needed. The relatively low concentration,

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Pescara, Igor Cardoso 1983. "Ocorrência e remoção de contaminantes emergentes por tratamentos convencionais de água e esgoto." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249647.

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Orientador: Wilson de Figueiredo Jardim<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-26T13:39:08Z (GMT). No. of bitstreams: 1 Pescara_IgorCardoso_D.pdf: 5286232 bytes, checksum: 74793adc4ea590e2eb8fdeb51a796399 (MD5) Previous issue date: 2014<br>Resumo: Este trabalho teve como objetivo avaliar a eficiência dos tratamentos empregados em cinco estações de tratamento de esgoto (ETE) e duas estações de tratamento de água (ETA) na remoção dos hormônios endógenos estrona (E1), 17?-estradiol (E2), estriol (E3), testosterona (TT

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Čelić, Mira. "Target analysis and suspect screening of wastewater derived contaminants in receiving riverine and coastal areas and assessment of environmental risks." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/671225.

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The main objective of this thesis is to evaluate the impact of wastewater discharges on receiving riverine and coastal ecosystems by studying the occurrence and fate of emerging contaminants (ECs). Since there is a myriad of ECs present in the environment, this thesis mostly focused on two main groups of compounds: (i) endocrine disrupting compounds (EDCs), including natural and synthetic hormones, alkylphenols (APs), such as nonylphenol (NP) and octylphenol (OP), and the plasticizer bisphenol A (BPA), and (ii) pharmaceutically active compounds (PhACs). These compounds were selected because th

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Heuett, Nubia Vanesa. "Target and Non-target Techniques for the Quantitation of Drugs of Abuse, Identification of Transformation Products, and Characterization of Contaminants of Emergent Concern by High Resolution Mass Spectrometry." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2194.

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Development and application of target and non-target techniques for routine analysis, identification of transformation products, and characterization of unknown compounds in water matrices using liquid-chromatography high-resolution mass spectrometry (HRMS) were explored in this dissertation. A novel analytical method based on online-SPE-LC-HRMS was developed for the detection of 18 drugs of abuse (DOAs) in raw sewage water from a college campus. Results showed the presence of 14 DOAs for which amphetamine and 11-nor-9-carcoxy-THC (THC metabolite) were the most prevalent and had the highest po

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Minakata, Daisuke. "Development of aqueous phase hydroxyl radical reaction rate constants predictors for advanced oxidation processes." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37127.

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Emerging contaminants are defined as synthetic or naturally occurring chemicals or microorganisms that are not currently regulated but have the potential to enter the environment and cause adverse ecological and/or human health effects. With recent development in analytical techniques, emerging contaminants have been detected in wastewater, source water, and finished drinking water. These environmental occurrence data have raised public concern about the fate and ecological impacts of such compounds. Concerns regarding emerging contaminants and the many chemicals that are in use or producti

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Sagristà, i. Puig Ester. "Hollow fiber liquid-phase microextraction in the determination of pharmaceuticals and personal care products." Doctoral thesis, Universitat de Girona, 2012. http://hdl.handle.net/10803/101412.

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Extensive amounts of pharmaceuticals and personal care products (organic emerging pollutants) are introduced into the environment mainly through wastewater treatment plants discharges either effluent wastewater reaching into the aquatic environment or sewage sludge which is spread onto agricultural land. These compounds are not regulated and their negative effects on humans and wildlife are unknown. One of the main challenges of analytical chemistry is to develop selective and sensitive methods for the detection and quantitation of pharmaceuticals and personal care products and their transform

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Nieto, Cebrián Antonio. "Emerging organic contaminants in sewage sludge." Doctoral thesis, Universitat Rovira i Virgili, 2010. http://hdl.handle.net/10803/9048.

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El objetivo de esta tesis es el desarrollo de métodos analíticos para la determinación de un grupo de contaminantes emergentes entre los cuales se incluyen los fármacos y los compuestos de cuidado personal en lodos de depuradora.<br/>Los métodos desarrollados se basan en la extracción presurizada con solventes (PLE) y, debido a la polaridad de estos contaminantes, la cromatografia de líquidos. Como técnicas de detección se han utilizado la espectrometría de masas (con quadrupolo y tiempo de vuelo como analizadores) y la espectrometría de masas en tandem (con triple quadrupolo como analizador)

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Núñez, Marcé Mireia. "Emerging organic contaminants in aquatic organisms." Doctoral thesis, Universitat Rovira i Virgili, 2017. http://hdl.handle.net/10803/456825.

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Aquesta Tesi Doctoral se centra en el desenvolupament de nous mètodes analítics per determinar diferents contaminants orgànics emergents, com ara productes farmacèutics de consum generalitzat, els medis iodat de contrast per a raigs-X (un altre grup de productes farmacèutics emprats en la medicina de diagnòstic), i un grup d'edulcorants d'alta intensitat en organismes aquàtics. Dues tècniques d'extracció (extracció mitjançant líquids pressuritzats i QuEChERS) van ser avaluades per extreure els compostos seleccionats i diferents neteges també van ser provades. La determinació es va realitzar mi

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Andaluri, Gangadhar. "Ultrasound induced destruction of emerging contaminants." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/111771.

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Civil Engineering<br>Ph.D.<br>There are many reports indicating the presence of emerging contaminants such as: estrogen hormones, 1,4-dioxane and perfluoro-octanoic acids in the natural environment. Estrogen hormones are considered important emerging class of contaminants due to their endocrine disrupting effects. These compounds are invariably found in the environment originating mostly from natural sources. Trace concentrations of estrogen hormones (low µg/L concentrations) have been detected in municipal wastewater treatment plants and observed in receiving water bodies. 1,4-Dioxane (C4H8O2

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Mora, Gómez Julia. "Eliminación de contaminantes orgánicos emergentes mediante procesos electroquímicos de oxidación avanzada." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/158751.

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[ES] La presente Tesis Doctoral se centra en el estudio del comportamiento electroquímico de nuevos electrodos cerámicos basados en SnO2 dopado con Sb2O3. El estudio está orientado a la posterior aplicación de estos electrodos en procesos electroquímicos de oxidación avanzada. Inicialmente, se consideraron diferentes temperaturas de sinterización (entre 1050°C y 1250°C) y se observó que un aumento en la temperatura de sinterización favorecía la deposición del Sb2O3 en la superficie anódica, disminuyendo así la resistividad del electrodo. Posteriormente, se estudió el comportamiento electroquí

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