Acid mine drainage (AMO) is a significant environmental concern at many hard rock mines. Laboratory-based predictive tests are used to determine if AMO will be generated by mine wastes, but these tests do not generally examine the role of microbes in acid-generating processes. This study will extend the capabilities of the advanced customizable leaching columns (ACLCs) developed by M.A. Okane Consultants Inc. to include microbiological factors. We will use a combination of geochemical, mineralogical, and microbiological analyses to compare the ACLC tests to field waste rock conditions.
Because of the crack’s appearance in concrete over time, the concrete strength decrease. To prevent deterioration and heavy costs of reparation, concrete chemical additives are usually added but their cost are prohibitive and not very sustainable along time. Successful research projects have been using encapsulated bacteria in the concrete which reactivate at the contact of air and water -when cracks appear. These bacteria multiplicate in the cracks and die which create a precipitation and fill the cracks.
In this project, in order to analyze aerial deposition of contaminants resulting from oil and gas activities in west-central Alberta, samples of snowpack will be collected from the Fox Creek area for chemical analysis. Using the chemical analyses results, a map of the contaminants deposition and their potential sources of release will be delineated.
Recent studies have highlighted the need to investigate potential for acid generation and metal(loid)s release froth treatment tailings generated at oil sands mining operations. In addition to residual hydrocarbons, froth treatment tailings contain minerals that make them geochemically distinct from sulfide-bearing tailings generated at metal-mining operations. The proposed research will integrate field studies, laboratory experiments, and modelling to investigate the geochemical implications of potential reclamation approaches for froth treatment tailings.
This proposal details an approach for evaluating a planned project led by SII called Participatory Cities: a new inclusive, system-based approach to stimulating and supporting dense networks of practical ‘participation culture’ in cities around the world. With proof of concept developed and tested in London, UK, by the Participatory City Foundation, the model will now be implemented in Montreal and Halifax, as well as the two Toronto communities at the centre of this proposal: Alexandra Park and Regent Park.
Northwest Hydraulic Consultants Ltd. (NHC) is often involved in the restoration and design of steep streams. To date when assessing these river channels, NHC has relied upon experimental results conducted with fixed vertical river banks and a series of assumptions have been used to figure out how to make river channels with sloped banks. These assumptions introduce risk into the design process and likely result in the rock used to make the channel banks being over-sized. We plan to address this issue through a combination of physical experiments and field data collection.
A novel technology that will allow transplant surgeons to obtain accurate measurements of liver fat content during donor surgeries has been developed. These results will be immediate and will guide the transplant surgeon in deciding whether the liver is acceptable for transplantation. This will lead to fewer discarded livers, reduced waitlists for liver transplantation and improved quality of life for many individuals with end-stage liver disease. Our alpha prototype has been proved to detect fat at concentrations greater than 5%.
The COVID-19 pandemic has been caused by a novel coronavirus, SARS-CoV-2. Viral infections cause the human immune system to respond in two ways: a fast, non-specific response, and a slow response that produces antibodies that will target the infecting virus. Each antibody will recognize a small segment of the virus, called an epitope. If the best segments to target can be identified, it is possible to manufacture antibodies to test for the infection and help the immune system to boost its response when fighting the infection.
Lithium products are projected to be among the most sought-after chemicals in the next decade due to the increasing use of Li-ion batteries in electric vehicles. To meet the demand for such products and because of increase in Li products price, unconventional resources such as Li-bearing oilfield brines have been touted as a new source of Li; however, the required extraction and concentration technologies are completely different than those used in conventional evaporation ponds, which are typically deployed in warmer regions with higher concentrations of Li.