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 15 of 15 for “"Treatment Wetland"”.
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Floating Treatment Wetland Nutrient Uptake Efficiency on the Salmon River
… ecosystems worldwide. Constructed floating treatment wetlands (FTWs) provide a potential nature-based solution for removing nutrients and other contaminants, yet their effectiveness in the natural environment is uncertain. This study evaluated FTW efficacy on the Salmon River, BC, where …
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The physical role of transverse deep zones in improving constructed treatment wetland performance
Velocity heterogeneity is often present in wetland systems and results in some influent water remaining in the wetland for less than the expected residence time. This phenomenon, known as short-circuiting, alters the distribution of the chemical and biological transformations that occur within the …
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Design of a treatment wetland for the North Acton Recreational Area, Acton, MA
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1999.
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The design of a treatment wetland to polish municipal wastewater in the Eel River Watershed, Plymouth, MA
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Degradation of Chlorinated Hydrocarbons in Groundwater Passing Through the Treatment Wetland at Wright-Patterson Air Force Base: Analysis of Results Collected During 2001-'06
Constructed wetlands are an efficient and cost effective means for chlorinated aliphatic hydrocarbon remediation, and will therefore continue to gain momentum as an accepted treatment by the US EPA (U.S. EPA, 1995; Amarante, 2000; Lien, 2001; WETPOL, 2009). The treatment options for chlorinated …
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URBAN WASTEWATER REUSE IN AGRICULTURE: RECENT PERSPECTIVES FROM CASE STUDIES IN SICILY
… of a horizontal sub-surface flow constructed treatment wetland (TW) system, used for tertiary treatment of sanitary wastewater from a small rural municipality located in Eastern Sicily (Italy), were reused by micro-irrigation techniques to irrigate vegetable crops. Monitoring programs, based …
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SEE. I AM ONE. BALANCING POWER IN GENOMICS RESEARCH OF CONSTRUCTED WETLANDS TO CLEAN OIL SANDS TAILINGS WATER
… examining genomic enhancement of constructed treatment wetland systems (CTWS) to remediate oil sands processed water (OSPW), I was positioned to study the researchers, research, and community perspectives, to contribute to a gap on how these collaborations can increase their effectiveness in …
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Control of agricultural nonpoint source pollution in Kranji Catchment, Singapore
… in the area. A constructed free-water-surface treatment wetland was designed to treat runoff immediately downstream from the identified source. The designed wetland is projected to remove, depending on flow conditions, between 13 and 99% of influent total phosphorus, 51 to 99% of influent total …
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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)
… promelas were used to assess the efficacy of a treatment wetland to remove toxicity and estrogenicity in final treated wastewater effluent. Comparisons were made with an effluent dominated stream and laboratory controls. Vitellogenin, GSIs (gonado-somatic indices), HSIs (hepato-somatic indices) …
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Quantification of complex phosphorus removal reactions occurring within wetland filtration treatment systems
In a constructed treatment wetland applied to domestic wastewaters, long term studies and increased operational experience indicate that phosphorus removal is variable or inconsistent, especially in cold-climate applications. These inconsistencies can be attributed to the complexity of phosphorus …
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Bioremediation of chlorinated ethanes and ethenes in vertical flow engineered wetland systems
Sustainable treatment of chlorinated ethanes and ethenes contaminated groundwater using vertical flow engineered wetland systems were investigated in microcosm and column studies. Experiments on environmental and biogeochemical factors that affect system performance were conducted, and a numerical …
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Floating wetlands for urban stormwater treatment
A floating treatment wetland (FTW) is an ecological approach which seeks to reduce point and nonpoint source pollution by installing substrate rooted plants grown on floating mats in open waters. While relatively novel, FTW use is increasing. A review of literature identified several research gaps, …
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An Assessment of Sustainable Water Management at University Campuses
… revealed that institutions featuring stream and wetland restoration projects had greater odds of being described as having a developed watershed plan and taking into consideration multidisciplinary approaches to water management.</p><p>Case studies showed that wetland creation and restoration …
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Microbial contaminant removal and alternative nitrogen removal pathways in denitrifying bioreactors
Denitrifying bioreactors, simple treatment systems consisting of a container filled with a particulate organic carbon source, are an effective and low-cost technology for the effective removal of nitrogen (N) from water by enhancing denitrification (i.e. the bacterial conversion of nitrate [NO3-] …
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Uso sostenibile di acque e biomassa provenienti da zone umide nelle aree interne della Sicilia
Nell’attuale scenario globale di aumento della domanda di acqua ed energia, dovuto al fenomeno del cambiamento climatico, particolare importanza assumono tutti i sistemi e le strategie di gestione che permettono di raggiungere una buona qualità dell’acqua ed un risparmio energetico. Lo scopo …