Use of coal mining waste for the removal of acidity and metal ions Al (III), Fe (III) and Mn (II) in acid mine drainage

被引：12

作者：

Geremias, R. ^{[1
]}

Laus, R. ^{[1
,3
]}

Macan, J. M.

Pedrosa, R. C. ^{[2
]}

Laranjeira, M. C. M. ^{[1
]}

Silvan, J. ^{[3
]}

Favere, F. V. ^{[1
]}

机构：

[1] Univ Fed Santa Catarina, Dept Quim, BR-88040900 Florianopolis, SC, Brazil

[2] Univ Fed Santa Catarina, Dept Bioquim, BR-88040900 Florianopolis, SC, Brazil

[3] Univ Extremo Catarinense, BR-88806000 Criciuma, SC, Brazil

来源：

ENVIRONMENTAL TECHNOLOGY | 2008年 / 29卷 / 08期

关键词：

acid mine drainage; coal mining waste; metal ions; Artemia sp; Daphnia magna;

D O I：

10.1080/09593330802015409

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The coal industry may generate acid mine drainage (AMD) and mining wastes, which may adversely affect the quality of the environment. In this study we propose the use of this waste in the removal of acidity and metal ions, as well as in the reduction of the toxicity of AMD. A physico-chemical analysis of the waste shows the presence of mainly SiO(2), Al(2)O(3) and Fe(2)O(3) and a superficial area of 4.316 m(2) g(-1). The treatment of AMD with the waste resulted in an increase in pH from 2.6 to 7.8 and removed 100% of the Al (III), 100% of the Fe (III) and 89% of the Mn (II). We also observed that the high toxicity of the AMD towards Daphnia magna (LC(50) = 3.68%) and Artemia sp. (LC(50) = 4.97%) was completely eliminated after treatment with the waste. The data obtained allow us to propose that the waste can be used in the treatment of AMD, providing an economic use for the waste.

引用

页码：863 / 869

页数：7

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