Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"Endocrine disrupting compounds"”.
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Removal of Endocrine Disrupting Compounds Using Membrane Bioreactor
<p>The presence of endocrine disrupting compounds (EDCs) and pharmaceutically active compounds (PhAC) such as pesticides, personal care products, antibiotics and pharmaceutical compounds, in sewage, industrial, and domestic waters has extensively become the major concern for health and …
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Studies on the behaviour of endocrine disrupting compounds in a membrane bioreactor
The present research focuses on the fate of hydrophobic micropollutants in a membrane bioreactor (MBR) and their removal in it. MBR represents one of the most promising innovations in the field of wastewater treatment because of the high efficiency in removal of organics and nutrients. The high …
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Impact of Indirect Potable Reuse on Endocrine Disrupting Compounds in the Potomac River Basin
… to determine the sources and magnitude of endocrine disruption. Endocrine disrupting compounds (EDCs) are exogenous chemicals that interfere with the endocrine system and can cause detrimental health effects at low concentrations. This study aims to understand a best management practice …
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Assessing Brook Stickleback (Culaea inconstans) as a bioindicator for endocrine disrupting compounds in aquatic environments
Endocrine disrupting compounds (EDC) are environmental contaminants that disrupt reproduction, development and behaviour in aquatic organisms. A thorough evaluation of the impacts of EDCs on aquatic organisms is currently limited by a lack of robust biomarkers in small model fish, particularly for …
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Fate and Biological Activity of Endocrine Disrupting Compounds in the Waste of a Commercial Swine Operation.
North Carolina State University Theses Environmental and Molecular Toxicology.
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Fate and Transport of Endocrine Disrupting Compounds during Wastewater Treatment: The Role of Colloidal and Particulate Material
The presence of biologically-active estrogenic endocrine disrupting compounds (EDCs) in treated effluents from biological wastewater treatment facilities has prompted wide-spread interest in the behavior of these contaminants during the activated sludge process. The yeast-estrogen screen (YES) was …
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New extraction protocols for the determination of endocrine disrupting compounds in samples of environmental and agri-food interest
Humans are highly exposed to endocrine disrupting compounds (EDCs) due to the multiple contamination sources and accessible routes to the organism, including oral consumption, skin contact, inhalation, etc. It has been demonstrated that these compounds are responsible for several health disorders …
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Development and Scale-up Production of a Novel Fibrous Catalyst and Application for Removal of Endocrine Disrupting Compounds
… Existing methods of removal of estrogenic compounds from wastewater were reviewed. The PAN catalyst produced using optimised procedure was successfully applied for removal of estrogenic compounds in the bench scale experiment. The catalyst produced from the industrial scale-up was used with …
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Entwicklung und Anwendung chemisch-analytischer Verfahren zur Bestimmung endokrin wirksamer Substanzen
… methods for identification and quantification of endocrine disrupting compounds (EDCs) from matrices, which result during the waste water treatment process. Especially matrices like sewage sludge and sediments were investigated. From the abundance of the EDCs the xenoestrogens Nonylphenol, …
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Characterization, Functionalization, and Adsorption Behavior of Single-Walled Carbon Nanotubes towards Bisphenol A and 17 Β- Estradiol
… (SWNTs) through the adsorption of representative endocrine disrupting compounds: bisphenol A (BPA) and 17 β-estradiol (E2). Initially, a protocol was developed to understand the effect of ultrasonication on the dispersion of SWNTs in water. The results of adsorption experiments have showed that …
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Evaluation of Bromate Formation and Control using Preformed Monochloramine in Ozonation for Indirect Potable Reuse
… wastewater reuse to destroy specific harmful compounds, including pharmaceuticals, personal care products and endocrine disrupting compounds. Ozonation also increases the biodegradability of recalcitrant organic compounds and inactivates disease-causing microbes. However, bromate, a regulated …
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Predicting adsorption isotherms in natural water using polyparameter linear free energy relationships
… of activated carbon for removing these compounds, but such data are not available for most of these contaminants and it would be expensive to carry out isotherm tests for all compounds of interest. This research was conducted to reduce the effort required to determine needed isotherm …
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Selecting DNA aptamers for 17β-estradiol
… water resources. It falls under the category of endocrine disrupting compounds (EDCs), and hence has been included in the EPA’s Unregulated Contaminant Monitoring Rule (UCM3) that will require the monitoring of this compound. Thus, there is an increasing demand to sensitively and selectively …
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The Occurrence and Fate of Steroid Hormones from Manure Amended Agriculture Fields
Hormones are endocrine disrupting compounds, which have been shown to alter the sexual development of aquatic organisms. Animal manure applications to agricultural fields for nutrient management can be a source of environmental hormones. This dissertation investigates the occurrence of hormones in …
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Mercury methylation potentials in sediments an ancient cypress wetland using species-specific isotope dilution-GC-ICP-MS: Analytical method development and the effect of sorbent amendments
… trace organic contaminants, including several endocrine disrupting compounds, were detected at multiple sites in the river system, with particularly high levels downstream of wastewater treatment plants. </p>
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Ozone and biofiltration as an alternative to reverse osmosis for removing PPCPs and EDCs from wastewater
… and personal care products (PPCPs) and endocrine disrupting compounds (EDCs) in drinking water supplies. Current water and wastewater treatment techniques, such as coagulation, flocculation, and sedimentation for water treatment and the conventional activated sludge process for …
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Experimental and kinetic modelling of multicomponent gas/liquid ozone reactions in aqueous phase. Experimental investigation and Matlab modelling of the ozone mass transfer and multicomponent chemical reactions in a well agitatated semi-batch gas/liquid reactor.
… when alcohols were used and fast reactions when endocrine disrupting compounds were used. ii These experiments were simulated by mathematical models. The alcohols were selected depending on their volatilization at different initial concentrations and different gas flow rates. The degradation of …
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Experimental and kinetic modelling of multicomponent gas/liquid ozone reactions in aqueous phase. Experimental investigation and Matlab modelling of the ozone mass transfer and multicomponent chemical reactions in a well agitatated semi-batch gas/liquid reactor.
… when alcohols were used and fast reactions when endocrine disrupting compounds were used. ii These experiments were simulated by mathematical models. The alcohols were selected depending on their volatilization at different initial concentrations and different gas flow rates. The degradation of …
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Selection and characterization of DNA aptamers for estradiol and ethynylestradiol for aptasensor development
… nation. A sub-class of these contaminants called endocrine disrupting compounds (EDCs) are known to have adverse effects on aquatic and human health. Among the EDCs, natural hormone 17β-estradiol (E2) and synthetic hormone 17α-ethynylestradiol (EE) possess high estrogenic potency and hence are …
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