Limestone Neutralisation of Arsenic-Rich Effluent from a Gold Mine

被引：5

作者：

de Beer, M. ^{[1
,2
]}

Mathews, E. H. ^{[1
]}

Krueger, D. ^{[1
]}

Maree, J. ^{[2
]}

Mbhele, N. ^{[2
]}

Phalanndwa, M. ^{[2
]}

Novhe, O. ^{[2
]}

机构：

[1] North West Univ, CRCED Pretoria, ZA-0040 Lynnwood Ridge, South Africa

[2] CSIR, ZA-0001 Pretoria, South Africa

来源：

MINE WATER AND THE ENVIRONMENT | 2008年 / 27卷 / 01期

关键词：

Sludge; Arsenic; Acid Water; Toxicity Characteristic Leach Procedure; Limestone Powder;

D O I：

10.1007/s10230-007-0023-3

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Traditionally acid mine water is neutralised with lime. Limestone is a cheaper alternative for such applications. A case study showed that limestone can be used effectively to replace lime for the neutralization of arsenic rich acid water. The cost of limestone treatment is 45.8% less than that of lime. The acidity can be removed from 33.5 to 0.06 g/L (as CaCO3). The study also showed no significant differences in the TCLP characteristics of the resultant sludge when water is treated with lime or with limestone. Sludge from the limestone treatment process can be disposed of on a non-hazardous landfill site.

引用

页码：46 / 51

页数：6

共 9 条

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