Evaluating the effectiveness of novel chemically modified chars, in conjunction with other organic and inorganic residuals from the forestry and pulp & paper industries, for enhanced passive treatment of mine-influenced water

This research will test the efficacy of sulphate and metals removal from mine-influenced water using passive or semi-passive technologies. Critical to successful application of these technologies is creating conditions that support microorganisms that mediate precipitation of metal sulphide minerals. For this purpose, we propose to develop an effective formula of reactive constituents comprised of 1) complex organic matter (OM) that provides a food source, 2) a form of iron that mediates reductive and metal removal processes and 3) other amendments that help retain nutrients and/or buffer the pH. Our particular focus will be to leverage valorization and reuse of forestry and pulp & paper mill residues for the treatment system. Specifically, we will test 1) locally sourced OM materials such as pulp & paper biosolids, 2) different types of activated and chemically modified biochars and/or 3) waste pulp & paper ash.

Faculty Supervisor:

Susan Baldwin

Student:

Lauren Lundquist

Partner:

Teck Metals Ltd.

Discipline:

Engineering - chemical / biological

Sector:

Environmental industry

University:

Program: