Cellulose nanocrystals (CNC), a form of cellulose, shows a lot of promise in the development of sustainable materials thanks to its unique properties such as high performance, large surface area, is readily available, renewable, and biodegradable. Early methods to synthesize CNC have not been very successful. In order to isolate CNC, to make them ready for fast production of industry needs, these challenges need to be resolved by chemical modifications.
Ce projet propose de définir les enjeux socio-environnementaux et socio-économiques reliés à la présence de microplastiques (MP) marins dans l’estuaire et le golfe du Saint-Laurent, une région hydrologique complexe sous-étudiée vis-à-vis cette problématique. Ceci permettra d’orienter les décisions visant à protéger l’environnement tout en soutenant les secteurs maritimes, notamment ceux reliés aux ressources marines commerciales.
La production mondiale annuelle de plastiques est estimée à plus de 335 millions de tonnes et risque de doubler d’ici 20 ans. De cette production, moins de 26 % est actuellement recyclé; plus de 74 % de ces plastiques sont donc redirigés à l’enfouissement ou relargués dans l’environnement. Il est clair que l’accumulation des plastiques dans les eaux de surface pose un enjeu important sur la santé publique et menace les écosystèmes aquatiques.
Modern pesticides have revolutionized agriculture. However, growing concerns with pest resistance, environmental run-off, and a lack of capacity to deal with abiotic stresses associated with drought or extreme heat (critical issues with regards to climate change) demand new solutions. Suncor has developed new plant immune aids that address these challenges by fortifying the immunity of plants, with demonstrated efficacy in crop models. However, current formulations suffer from low bioavailability and low leaf retention, resulting in the need for frequent and costly re-applications.
Forests in British Columbia have significant areas that need to be managed to limit the danger of fire and disease. Under current management approaches, there are few cost-effective options available to areas that are not already regularly harvested. A holistic analysis of pelletization of these materials could show that the sale of wood pellets, as well as the reduction in fire suppression and forest management costs and the increase in tax base would generate a net profit to the province and the businesses associated with the management.
Occupying the large tailings ponds is the most significant environmental issue for oil sand conventional extraction process. Making Green Ceramic/building materials is the most promising method to reduce the size of tailings ponds. This not only leads to consumption of tailings but also results in valuable products for the construction industries.
The shortage and quality of food to feed the existing and growing population is an issue of global concern. There is also serious problem with the fungal and bacterial pathogens which result in losses of billions of dollars of annual loss of agricultural products. This project is an attempt to mitigate this with the use of X-ray treatment of seeds and organic products in stead of gamma rays or electron beams of a few MeV energies.
Driven by climate change induced water scarcity, further enhanced by rapid urbanization and population growth, potable water reuse initiatives are gaining interest. Potable reuse involves the indirect or direct use of highly treated municipal wastewater as a municipal drinking water source. Historically, the most commonly installed potable reuse train consisted of microfiltration, reverse osmosis (RO), and ultraviolet (UV) as treatment stages.
Canada Pump & Power (CPP) is an Alberta specialized industrial marine company. CPP has a novel proprietary dredge propulsion method based on a set of winch-driven cables: the patented Autonomous Mighty Dredge. Control strategies to date have delivered adequate performance in some operating conditions; the goal is to have the dredge capable of performing to a slurry rate specification under automatic control in a wide range of operating conditions (variable deposits, density, obstacles).
A two-year study on brazing technologies used for sintered tungsten carbide tiles is proposed to address the following technical objectives: 1) brazing metallurgy for sintered tungsten carbide and substrate high strength steel, 2) adherence mechanisms between different braze compositions and carbide tiles, 3) brazing parameters for optimized brazed joint performance, and 4) the mechanical stresses developed through the brazing process.