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Treatment of metal-contaminated water using bacterial sulfate reduction: results from pilot-scale reactors.

Authors
Dvorak DH; Hedin RS; Edenborn HM; McIntire PE
Source
Proceedings American Society of Mining and Reclamation, May 14-17, 1991, Durango, Colorado. Champaign, IL: America Society of Mining and Reclamation, 1991 May; :109-122
NIOSHTIC No.
10011747
Abstract
Pilot-scale biological reactor systems were installed to treat metal-contaminated water in an underground coal mine and at a smelting residues dump in Pennsylvania. The reactors consisted of barrels and tanks filled with spent mushroom compost, within which bacterial sulfate reduction became established. Concentrations of Fe, Zn, Mn, Nni, and Cd were lowered by over 95 pct as these metals were precipitated in the reactors. The formation of insoluble metal sulfides by reaction with bacterially generated H2S was identified as an important metal-retaining process in the reactors. This paper examines the chemistry of the reactor systems and opportunities for enhancing their metal-retaining and alkalinity-generating potentials.
Keywords
Author Keywords: anaerobic reactors; heavy metal sulfides; spent mushroom compost
Publication Date
19910514
Document Type
OP
Fiscal Year
1991
NTIS Accession No.
NTIS Price
Identifying No.
OP 125-91
NIOSH Division
PRC
Source Name
Proceedings American Society of Mining and Reclamation, May 14-17, 1991, Durango, Colorado
State
PA
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