Engineering Commons^™

Using Tio2 To Optimize The Photocatalytic Degradation Of Kraft Black Liquor Using Response Surface Methodology, Zihan Wang

Major Papers

The Canadian pulp and paper industry has been concerned with reducing annual emissions of pollutants into water bodies, air and landfills. Black liquor is a major byproduct from pulp mills such as Kraft. Black liquor is utilized in boilers to produce steam and electricity. Black liquor is a low-value chemical and researchers have employed thermal and chemical processes to produce products such as oils, adhesives, and dispersants. In recent years, photocatalysis has become an alternative to degrade black liquor into short chain carbon chemicals.

This study aims to optimize the performance of black liquor photocatalytic degradation using the TiO_{2 …}

Energy Supply Chain Of Co-Firing System To Generate Electricity, Abinash Panda

Major Papers

The problem of air pollution on the streets of the national capital of India, New Delhi is a major concern. Majority of the pollutants are generally originated from either the vehicles on the roads or the burning of crops from the neighbouring states of the National Capital Region (NCR). To improve the condition of the air quality by the vehicles, implementation of the Electric Vehicles (EVs) in an energy supply chain is a suitable plan. The objective of this paper is to plan a supply chain of generation of electricity by the process of co-firing that prompts benefits both in …

Review Of Polymer Gels For Conformance Control In Oil Reservoirs, Saman Kazemi

Major Papers

Excess water production due to conformance problems is a serious issue in oil extraction with severe environmental and economic implications. This is mainly due to the heterogeneity of the reservoir and existence of thief zones which uptake the injected water. Polymer gels have been successfully used to improve the sweep efficiency and to mitigate excess water production. However, due to the complexity of the reservoir, reservoir temperature, salinity, pH, lithology, and permeability, selection of proper gel system is still challenging. This paper aims to provide a literature review on six widely applied polymer gel systems used for conformance control applications. …

Methane Production Using Photocatalytic Degradation Byproducts From Black Liquor, Christina Joy Jung

Electronic Theses and Dissertations

The focus of this thesis was on the production of methane from black liquor (BL) using a two-step degradation process; that being, photocatalytic pretreatment of BL followed by anaerobic digestion. Photocatalytic degradation efficiency was optimised based on the following factors: lignin type (BL, black liquor with sulfide removal (BL-S), alkaline lignin (AL), and sodium lignosulfonate (LS)), lignin concentration (500 and 1000 mg COD/L), catalyst type (titanium dioxide (TiO2) and reduced graphene oxide titanium dioxide nanotubes (RGO TNT)), and initial concentration of strong oxidizing agent (0, 0.001, 0.005, and 0.01 mol/L of H2O2). The process efficiency was evaluated based on biodegradation …

Analysis Of A Garment-Oriented Textile Recycling System Via Simulation Approach, Reyhaneh Yavari

Major Papers

The textile industry is one of the polluting industries on the planet. Public awareness has increased manufacturers responsibility and forced them to shift from linear to the circular production line to reduce the amount of environmental impact such as; energy and freshwater consumption, toxic and fertilizer usage and cutting down the use of raw material. Also, some new business strategies like fast fashion which is a recent trend in the fashion industry by offering fast changing trend and inexpensive designs accelerate the process of purchasing new clothes that end up in landfills. Recycling, remanufacturing and reusing are some practices that …