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Abstract

Selenium waste from mining is addressed using wastewater treatment systems, often resulting in selenium-laden sludge that is disposed of as hazardous waste. At the same time, selenium is a critical element in agriculture, healthcare, energy, electronics, and advanced materials. The paradox of selenium simultaneously being an environmental liability and a valuable resource highlights the need for a fundamental shift in its management. The Bradshaw Research Institute for Minerals and Mining (BRIMM) at UBC recognizes the need for better selenium management and is pioneering strategies to reduce the costs, risks, and environmental impacts of selenium waste management. This paper introduces the selenium bioeconomy, a framework that applies synthetic biology, bioprocess engineering, and materials chemistry to the selective recovery of selenium from waste streams and its conversion into high-value products. The scale of selenium pollution in Canada will be evaluated using public data. Initiatives led by BRIMM to develop interdisciplinary partnerships and create a centre for selenium research will then be showcased.