Biogeochemistry of Acid Mine Drainage and a Method to Control Acid Formation
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 6
- File Size:
- 444 KB
- Publication Date:
- Jan 1, 1982
Abstract
A bacterium, Thiobacillus ferrooxidans, is of prime importance in the formation of acid drainage from pyritic material. Above pH 4.5, T. ferrooxidans increases initial acidification; below pH 4.5, it allows acidification to continue by oxidizing Fe2 +. Below a pH of approximately 2.5, the activity of F3+ is significant and results in steady-state cycling between oxidation of pyrite by Fe3 + and bacterial oxidation of Fe2 +. Laboratory and field tests demonstrate that inhibition of T. ferrooxidans by controlled release of anionic detergents can inexpensively reduce pyrite oxidation and acid formation.
Citation
APA: (1982) Biogeochemistry of Acid Mine Drainage and a Method to Control Acid Formation
MLA: Biogeochemistry of Acid Mine Drainage and a Method to Control Acid Formation. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1982.