Membrane Filtration Systems to Address Water-Borne Diseases due to Heavy Rain Events

Climate change is expected to introduce higher incidence of extreme rain events across Canada. These events may increase the risk of water-borne diseases due to the accumulation of pathogens in water sources and surrounding environments. Studies have indicated that pathogens accumulate in soils during dry periods and can be flushed into water systems with the first heavy rains. Some systems are overwhelmed and drinking water is contaminated. Membrane filtration systems for water treatment plants (e.g., membrane-filtration system in Revelstoke, BC) are possible adaptation strategies for this problem. The filtration process removes pathogens and particulate matter present in source water to make it easier to treat. In addition, water quality is maintained while reducing the need for excessive amounts of chlorine treatment which may be harmful.

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