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Articles 1 - 7 of 7
Full-Text Articles in Engineering
Changes To Water Quality And Discharge In An Urban Stream In Southwest Jefferson County., Karina Henson
Changes To Water Quality And Discharge In An Urban Stream In Southwest Jefferson County., Karina Henson
Electronic Theses and Dissertations
Mill Creek is the largest watershed in Southwest Jefferson County, where thousands of people live and work. Streams in the watershed have historically been channelized and altered to promote drainage, and stream health is of major concern. Louisville MSD is currently developing a watershed plan for Mill Creek by seeking understanding of current stream conditions. This paper will focus on historical trends in stream discharge and water quality. Peak and daily discharge, dissolved oxygen, specific conductance, and temperature data from USGS gages at Mill Creek and the Mill Creek Cutoff was analyzed to understand how water quality and flow rates …
Canadian Automotive Recycling Industry: Developing Towards A Circular Economy, Simon Che-Wen Tseng
Canadian Automotive Recycling Industry: Developing Towards A Circular Economy, Simon Che-Wen Tseng
Electronic Theses and Dissertations
The Canadian automotive recycling industry is essential to the modern world market to properly dispose of the millions of obsolete vehicles annually. Currently, the industry is fragmented with mostly small to medium-sized operations. There is a lack of enforceable regulations specific to the automotive recycling industry for most jurisdictions. Conversely, the automotive manufacturing industry has embraced the idea of efficiency improvements toward a circular economy (CE). As an integral part of the automotive industry, the automotive recycling industry is a critical but often unseen contributor to a sustainable global industry. As such, the evolution of the Canadian end-of-life vehicle (ELV) …
Enzymatic Removal Of Diclofenac And Aceclofenac From Synthetic Wastewater By Soybean Peroxidase, Sarah Pishyar
Enzymatic Removal Of Diclofenac And Aceclofenac From Synthetic Wastewater By Soybean Peroxidase, Sarah Pishyar
Electronic Theses and Dissertations
Pharmaceutical medications that are a class of emerging contaminants have been detected in wastewater treatment facilities' influent and effluent, and they have reached water sources in amounts ranging from ng/L to ug/L. They threaten the environment and non-target life. Soybean peroxidase (SBP)-catalyzed process was studied to remove two non-steroidal anti-inflammatory drugs (NSAIDS) diclofenac and aceclofenac through enzymatic oxidation from synthetic wastewater. SBP can be extracted from soybean hulls, a by-product of the soybean industry. First, the experiments studied the viability of SBP-catalyzed removal on these two compounds, then the operational parameters including pH, the molar ratio between hydrogen peroxide and …
Enzymatic Removal Of Sulfa Drugs From Synthetic Wastewater By Soybean Peroxidase, Maryam Sharifzadeh
Enzymatic Removal Of Sulfa Drugs From Synthetic Wastewater By Soybean Peroxidase, Maryam Sharifzadeh
Electronic Theses and Dissertations
Sulfa drugs are a broad family of antibiotics that are widely used in the treatment of a wide range of infections, and they have been found in surface and groundwater, as well as present in sewage and effluent (treated sewage and sludge)municipal or industrial wastewater treatment plants (WWTPs). in concentrations of ng/L to >g/L. The continued presence of these so-called emerging pollutants (ECs) and their metabolites can cause adverse ecological effects, including bacterial resistance, even at very low concentrations. In this study, the first aim was to explore the feasibility of oxidation processes catalyzed by soybean peroxidase as an eco-friendly …
Livestock Wastewater And Air Quality Management Using Microalgae, Capacitive Deionization, And Biofilters, Augustina Kwesie Osabutey
Livestock Wastewater And Air Quality Management Using Microalgae, Capacitive Deionization, And Biofilters, Augustina Kwesie Osabutey
Electronic Theses and Dissertations
No abstract provided.
Removal Of Disinfection Byproducts In Drinking Water Using Biological Filtration, Peng Dai
Removal Of Disinfection Byproducts In Drinking Water Using Biological Filtration, Peng Dai
Electronic Theses and Dissertations
Drinking water disinfection is essential to protecting public health from waterborne diseases. However, the reaction of disinfectants with natural organic matter (NOM) can form carcinogenic disinfection byproducts (DBPs). Drinking water treatment facilities employ precursor control and alternative disinfectants to minimize regulated DBPs formation to comply with Environmental Protection Agency (EPA) guidelines. Despite their efficacy, some limitations have been observed during the application, such as increased cost of enhanced coagulation, high demand for sludge disposal, inconsistency in precursor removal, and formation of more toxic unregulated and unknown DBPs. Therefore, it is important to develop more efficient and safe strategies for DBPs …
Accessing The Relative Sustainability Of Point-Of-Use Water Disinfection Technologies Through Costs And Environmental Impacts, Bright C. Elijah
Accessing The Relative Sustainability Of Point-Of-Use Water Disinfection Technologies Through Costs And Environmental Impacts, Bright C. Elijah
Electronic Theses and Dissertations
According to the World Health Organization, 785 million people lack access to basic drinking water facilities, and 144 million people rely on surface water which is prone to microbial contamination. Point-of-use (POU) water disinfection technologies can be adopted to help address these issues by treating water at the household level; however, navigating various POU disinfection technologies for a given water source or location can be difficult. While numerous conventional POU technologies exist (e.g., boiling water, POU chlorination), new emerging POU technologies (e.g., using novel materials or advanced processes) have been coined by developers to be lower cost with higher treatment …