Prevention of formation of acid drainage from high‐sulfur coal refuse by inhibition of iron‐ and sulfur‐oxidizing microorganisms. I. Preliminary experiments in controlled shaken flasks
作者:
P. R. Dugan,
期刊:
Biotechnology and Bioengineering
(WILEY Available online 1987)
卷期:
Volume 29,
issue 1
页码: 41-48
ISSN:0006-3592
年代: 1987
DOI:10.1002/bit.260290107
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractChanges of pH and sulfate concentration in high‐sulfur coal refuse slurries are used as measurements of microbial pyrite oxidation in the laboratory. Sodium lauryl sulfate (SLS), alkylbenzene sulfonate (ABS), benzoic acid (BZ) and combinations of SLS plus BZ and ABS plus BZ effectively inhibited formation of sulfate and acid when added in concentrations greater than 50 mg/L to inoculated 20 or 30% coal refuse slurries. Here 25 mg/L concentrations of SLS, ABS, and ABS + BZ stimulated acid production. Formic, hexanoic, oxalic, propionic, and pyruvic acids at 0.1% concentrations were also effective inhibitors. Four different lignin sulfonates were only slightly effective inhibitors at 0.1% concentrations. It was concluded that acid formation resulting from microbial oxidation in high‐sulfur coal refuse can be inhibi
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