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.
Results
Showing 1 to 20 of 68 for “"wastewater effluent"”.
-
Electrodisinfection of Municipal Wastewater Effluent
… the spread of disease from sewage treatment effluents, pathogenic microorganisms present must be destroyed by one or a combination of disinfection methods. Chlorine remains the predominant disinfectant used although it consumes considerable amounts of energy and has associated exposure risks …
-
Microbial and Chemical Affects on Leachate from Calcareous Soils Treated with Wastewater Effluent
… on water resources, prompting the use of treated wastewater effluent for irrigation in some areas, including the desert regions of the Western United States. To determine the potential effects of using secondary effluent for irrigation, we applied wastewater effluent and irrigation waters to …
-
The effect of treated wastewater effluent on the water quality of the Natalspruit river
Lack of effective wastewater management strategies poses a serious threat to the environment and human health around the world. South Africa's freshwater resources are threatened by human influence and dwindling at an alarming rate. Global climate change is expected to exacerbate this stress unless …
-
LC-MS/MS determination of various drugs of abuse and metabolites in municipal wastewater effluent samples
… amphetamine and benzoylecgonine) in municipal wastewater effluent samples. Samples were collected once daily and drugs were extracted from the wastewater with solid phase extraction using Waters Oasis MCX cartridges. Ultra-high-pressure liquid chromatography (UPLC) and positive electrospray …
-
Impact of Soil Properties on Removal of Emerging Contaminants from Wastewater Effluent During Soil Aquifer Treatment
… step to the remove two classes of ECs from wastewater effluent: pharmaceuticals and personal care products (PPCPs), and engineering nanomaterials (ENMs). In recent years, it has been determined that elevated levels of emerging contaminants (ECs) are being released into the environment with …
-
Effects of Experimental Scale on the Adsorption of Two Pharmaceutical Drugs Detected in Municipal Wastewater Effluent
… year and are poorly treated by conventional wastewater treatment processes, leading to increasing detection of such compounds in surface water, groundwater, and municipal drinking water. Soil aquifer treatment (SAT) is a promising method for treating these emerging compounds through combined …
-
Evaluating the Potential Impacts of Municipal Wastewater Effluent on Benthic Macroinvertebrates in the Upper Bow River
Municipal wastewater effluent (MWWE) is a common, high-volume, point source effluent that is commonly released to urban aquatic systems. MWWE is a complex mixture containing nutrients and many emerging chemicals of concern (ESOCs), which may vary due to treatment type, receiving environments, and …
-
Impact of Wastewater Effluent on Surface Water Resistomes in a Small Lower-Income Community with Deteriorated Sewage Infrastructure
… conditions, and high active microbial density, wastewater treatment plants (WWTPs) are hypothetical hotspots for the evolution and dissemination of AMR, but also function as a crucial checkpoint for restricting discharge of resistant bacteria, ARGs, and other pollutants into the environment. In …
-
Emerging Contaminants: Occurrence of ECs in Two Virginia Counties Private Well Water Supplies and Their Removal from Secondary Wastewater Effluent
… (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 …
-
Assessment of the Efficacy of a Constructed Wetland to Reduce or Remove Wastewater Effluent Estrogenicity and Toxicity Using Biomarkers in Male Fathead Minnows (Pimephales Promelas Rafinesque, 1820)
… to assess estrogenicity of a local municipal effluent. Vitellogenin induction in male P. promelas increased in frequency and magnitude with increased exposure duration and was greater ("=0.05) than controls after 2 and 3 weeks of exposure. The level of vitellogenesis induced by effluent …
-
Investigation of Membrane Fouling and Cleaning in Direct Contact Membrane Distillation of Municipal Wastewater
Municipal wastewater discharge to the environment is generally subject to regulations established under the Clean Water Act. Though the water is highly treated it is not suitable for human consumption. Increased interest in water reuse for potable supply introduces concern about trace constituents …
-
Biodegradation and Chemical Oxidation of Recalcitrant Organic Contaminants during Water Reuse
Water reuse of municipal wastewater effluent has become a potential solution for water shortages in arid regions that stem from the growth of human populations and effects of global climate change. However, municipal wastewater effluent contains many organic contaminants in trace quantities, which …
-
The Mechanisms, Products, and Kinetic of Carbamazepine-Free Chlorine Reactions
… widely detected in drinking water supplies and wastewater effluent. It has been previously found that CBZ is recalcitrant to biological removal processes. Therefore, active CBZ will be exposed to wastewater effluent disinfection processes, which for most treatment plants in the United States …
-
Impact of wastewater reuse in Burlington County on surface water quality and adjacent wetlands
… ecological impacts from application of treated wastewater effluent. Indian Springs Golf Course is currently irrigated with reclaimed wastewater. Grab water samples were collected from three (3) ponds located on the golf course over the course of a year and were analyzed for nitrate-nitrogen, …
-
The Effects of Aqueous Atorvastatin on Steroidogenesis of <i>Xenopus laevis</i> at Environmentally Relevant Concentrations
… prescribed statin drugs and contamination of wastewater effluent is a growing environmental concern because of the potential to interfere with steroidogenesis in wildlife. Amphibians may be particularly susceptible to the effects of atorvastatin contamination because of their highly permeable …
-
Natural and synthetic estrogens in wastewater treatment plant effluent and the coastal ocean
… so-called “free” estrogen concentrations in wastewater effluents, rivers, and lakes. Yet, to our knowledge, no studies have characterized the broader range of estrogens that includes free, conjugated, and halogenated forms. Conjugated estrogens are important because they can be easily …
-
Natural and synthetic estrogens in wastewater treatment plant effuent and the coastal ocean
… so-called "free" estrogen concentrations in wastewater effluents, rivers, and lakes. Yet, to our knowledge, no studies have characterized the broader range of estrogens that includes free, conjugated, and halogenated forms. Conjugated estrogens are important because they can be easily …
Page 1 of 4