Performance and contaminants risks with a blackwater-only sewer system designed for energy and nutrient recovery under cold Canadian conditions

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Globally and across Canada cities are challenged in providing sustainable water and sanitation services. With population expansion in major cities and the need to reduce greenhouse gas emissions, it has become more difficult for municipalities to keep extending existing centralized water supply lines for wastewater collection and treatment, let alone maintaining aging infrastructure. One option that improves upon economic, environmental and societal goals compared to conventional centralized services is a blackwater-only sewer (toilet and kitchen food streams) separate from household greywater. The overall objective of this CRD proposal is to develop an effective and safe psychrotrophic blackwater treatment system that can carry out complex energy and nutrient recovery from blackwater under cold Canadian conditions. Optimal operating conditions and risk management strategies will be demonstrated. The highly qualified personnel participating in this CRD Program will obtain academic and industrial knowledge and experience that will strengthen Alberta's and Canada's capacities in wastewater treatment management.