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Biogeochemistry of acid mine drainage and a method to control acid formation.

Authors
Kleinmann-RLP; Crerar-DA; Pacelli-RR
Source
Min Eng 1981 Mar; 33(3):300-305
NIOSHTIC No.
10002035
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 Fe3+ 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.
Keywords
Mining-industry; Bacteria; Waste-treatment; Environmental-pollution
CODEN
MIENAB
Publication Date
19810301
Document Type
OP; Journal Article
Fiscal Year
1981
NTIS Accession No.
NTIS Price
Identifying No.
OP 25-81
Issue of Publication
3
ISSN
0026-5187
NIOSH Division
PRC
Source Name
Mining Engineering
State
PA
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