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日本金属学会誌
Online ISSN : 1880-6880
Print ISSN : 0021-4876
ISSN-L : 0021-4876
製紙スラッジ焼却灰を用いた鉱山ズリの安定化
和嶋 隆昌池上 康之
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ジャーナル フリー

2008 年 72 巻 11 号 p. 903-910

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  The leaching of potentially toxic elements or the generation of acidity from mine waste often creates significant environmental pollution. A great deal of research has been undertaken to find an effective solution to the problem of acid mine drainage. An attractive solution has been proposed, not only efficient but also economical, as it uses another waste material. The objective of this study was to investigate the feasibility of stabilizing acidic mine waste using alkaline industrial waste, paper sludge ash (PSA), produced by the pulp and paper industry, under laboratory conditions. By mixing mine waste with (PSA) (the weight ratio of mine waste to (PSA) is 10:4), the eluted solution became neutral, and the concentrations of almost all metals dropped below the Japanese effluent standard. The inhibition of acid mine drainage with addition of PSA is sustainable. Although Radish sprouts did not grow on mine waste, they could be grown on the waste mixed with PSA. These results suggest that it is possible to use PSA for the remediation of a mine waste site.

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© 2008 (公社)日本金属学会
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