Sulfide Mineral Coating Process To Control Acid Rock Drainage

Period of Performance: 01/01/2003 - 12/31/2003


Phase 1 SBIR

Recipient Firm

Little Bear Laboratories, Inc.
5906 McIntyre Street, Building #2
Golden, CO 80403
Principal Investigator


Acid rock drainage (ARD) is a significant environmental problem. ARD is caused by chemical and biological processes (i.e., the oxidation of sulfide minerals in mine tailings and waste rock) and characterized by acidic water containing heavy metals. Existing technology for combating ARD consists of treating the acidic effluents or isolating problematic tailings or waste rock, but it does not attack the problem at the source.