In situ bioremediation of high sulphide environments

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Canada's water supply is under threat due to diminishing quantities of clean, non-toxic water for supporting wildlife and also for domestic livestock such as cattle. In some parts of Canada, high concentrations of sulphur compounds are responsible for creating environments toxic to many species. These include mine affected environments such as mine pit lakes and tailing ponds. In other areas, such as the Okanagan, BC, there is a shortage of drinking water for cattle due to naturally high sulphate concentrations. In addition, some stratified lakes high in sulphide have very low diversities and are uninhabitable by fish. Thus, our work is directed at studying biological and other environmental factors that regulate sulphur cycling in these systems with a view to developing in situ bioremediation strategies for improving water quality.