Browsing by Discipline
Now showing items 41-56 of 56
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Modelling soil temperature on the boreal plain with an emphasis on the rapid cooling period
(2009-10-15)To accurately model soil temperatures on the Boreal Plain, factors that influence fine-grained soils during the rapid cooling period must first be identified. The effects of air temperature, soil moisture and snow depth ... -
A novel approach to reaction modeling for photocatalytic oxidation processes
(2014)Volatile organic compounds (VOCs) are one of the major concerns for indoor air quality. A new method for treating VOCs in the air is through an advance oxidation process (AOP) known as photocatalytic oxidation (PCO). ... -
On the motion of vertical and oblique sand jets in stagnant immiscible liquids
(2019)Sand jets and particle clouds in water and viscous fluids have been a frequent subject of intense research and are pertinent to many environmental, industrial, and engineering processes. Mixing and dispersion of sand ... -
Pretreatment and conditioning of municipal wastewater secondary sludge using freezing and a combination of ultrasound and freezing
(2014-01-22)With the cost of sludge management on the rise, the volume reduction of municipal wastewater sludge is becoming an increasingly important issue for wastewater treatment plants. Current research is focused on pretreatment ... -
Pretreatment and enzymatic hydrolysis of peat and pine sawdust for bio-ethanol production / by Wei Shi.
(2010)This thesis includes three parts: 1.) effect of hydrogen peroxide on delignification of peat; 2.) pre-treatment of pine sawdust using various methods, including organosolv extraction, ultrasonic treatment, and sodium ... -
Production of bio-crude from forestry waste by hydro-liquefaction in sub-/super-critical methanol and upgrading of bio-crude by hydro-treating
(2009)Bio-energy is renewable and clean (with trace amount of sulfur and neutral in terms of CO2 emission), and abundant in resource, thus it could be a securable and sustainable energy for future. Due to the declining reserve ... -
Reversibility of PVDF membrane performance and structure caused by cold water temperature and elevated conditioning water temperature
(2018)Thousands of dollars are wasted each year due to the impact that cold temperature has on membrane filters. There are many areas around the world that are subjected to cold climate, and the study of how cold temperature has ... -
Source tracking of escherichia coli in a freshwater lake in Northwestern Ontario (Boulevard Lake, Thunder Bay)
(2013-02-01)Escherichia coli is regularly used as a fecal indicator bacteria (FIB) in recreational waters but its persistence in the environment brings its use into doubt. A secondary FIB known as Bacteroides has been under a lot of ... -
Submerged anaerobic membrane bioreactors for Kraft evaporator condensate treatment : feasibility and membrane fouling studies
(2008)In this study, the primary goal was to develop better treatment technologies for energy recovery from Kraft evaporator condensate (EC) using thermophilic and mesophilic submerged anaerobic membrane bioreactors (SAnMBRs). ... -
Sulfonation of kraft lignon to water soluble value added products
(2014-12-11)Kraft lignin is water insoluble and has limited end-use applications. The main objective of this MSc studies was to rend kraft lignin water soluble, and various value-added products including dispersants and flocculants. ... -
Synthesis, characterization and photocatalytic application of TiO2 nanosized particles / by Dongliang Liao.
(2007, c200)In this thesis, effects of surfactant composition and concentration on shape, size, zeta potential, and photocatalytic activity of TiO2 nanosized particles are reported. Spherical, cubic, rod, ellipse and leaf-like shaped ... -
Tall oil production process and characterization
(2017)Existing kraft pulp mills have seen the necessity to branch out from traditional pulp and paper products to alternative value-added products such as bioenergy and biomaterials as a result of increasing competition in the ... -
Thermophilic anaerobic membrane bioreactor for pulp and paper sludge treatment
(2018)Pulp and paper mills generate a significant amount of organic waste (primary and secondary sludge) that requires treatment and disposal. Currently, pulp and paper sludge (PPS) is either dried for incineration or used for ... -
Toxic and precious metals removal from wastewater using freeze concentration and electrodeionization
(2018)Industrial wastewater may contain metals such as chromium (VI), nickel, cobalt and palladium. These metals are toxic to aquatic organisms and also have an adverse impact on human health and environment. Due to limited ... -
Understanding aging impact on membrane structure and seasonal variation of natural organic matter in water from a membrane drinking water treatment plant
(2018)An autopsy of hollow fiber (HF) PVDF membrane samples at different ages from a full-scale drinking water treatment was performed to investigate the membrane aging impact on membrane structures and properties. Scanning ... -
Validation of discrete ordinate radiation model for application in UV air disinfection modeling
(2014)This study investigated one of the most important aspect of ultra-violet (UV) air disinfection modeling which is radiation modeling. Radiation modeling is a topic of interest in the domain of UV air disinfection research. ...