A Small-Scale Sulfate-Reducing Bioreactor for Manganese Removal from a Synthetic Mine Drainage

被引：11

作者：

Edwards, J. D. ^{[1
]}

Barton, C. D. ^{[2
]}

Karathanasis, A. D. ^{[1
]}

机构：

[1] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY 40546 USA

[2] Univ Kentucky, Dept Forestry, Lexington, KY 40546 USA

来源：

WATER AIR AND SOIL POLLUTION | 2009年 / 203卷 / 1-4期

关键词：

Mine drainage; Sulfate reduction; Manganese; Sulfate/sulfide; Bioreactor; SULFIDE PRECIPITATION; REDUCTION; METALS;

D O I：

10.1007/s11270-009-0010-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This research evaluated the efficiency of a mesocosm scale bioreactor to remove Mn from a synthetic mine drainage in the presence of selected organic and inorganic substrate combinations that could enhance sulfate reduction and induce Mn sulfide precipitation. The mine drainage tested was slightly acidic (pH 6.2) and had average Mn and SO4 concentrations of 90 and 1,500 mg/L, respectively. The substrates used were creek sediment amended with either wood mulch or a wood mulch and biosolid mixture. Greater than 90% of Mn and 70% of sulfate was removed over a 65-day test period. The results suggested multiple Mn removal mechanisms including sorption, complexation, and Mn sulfide, Mn oxide, and/or Mn carbonate precipitation.

引用

页码：267 / 275

页数：9

共 21 条

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