Engineering Commons^™

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

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

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 …

Methods Of Determining And Predicating Community Annoyance Due To Aircraft Noise, Kevin Zielinski

Electronic Theses and Dissertations

As the importance of the aviation industry continues to grow, airports continue to expand, andincrease operations; noise generated from aircraft is becoming a growing concern to people livingwithin the communities surrounding the airports. Community members have shown concern throughcomplaints and annoyance due to the disturbances that aircraft noise cause in their everyday life. Thepurpose of this study is to determine which factors most affect community annoyance towards aircraftnoise. There are two main factors to be considered when analyzing annoyance due to aircraft noise.The first is the acoustic factors caused by the aircrafts themselves, such as the noise the aircraft emitsor …

Hydrogen Production During The Dark Fermentation Of Glycerol, Guochen Zhang

Electronic Theses and Dissertations

The focus of this thesis was on the production of H2 from glycerol by mixed anaerobic cultures through dark fermentation. Laboratory scale experiments were conducted to demonstrate H2 production from glycerol. The impact of various factors was evaluated using different analytical and statistical methods. Three pH levels (5.5, 6.5, and 7.5) were examined to determine the effects of the initial pH on H2 production from glycerol. A hydrogen yield of 0.33 ± 0.03 mol H2 mol–1 glycerol was observed in cultures with the initial pH set at 5.5.

Further experiments were focused on increasing the H2 yield using long chain …