摘要
将含砷污泥和粘土按一定比例混合制砖,并对样品砖的毒性浸出进行了研究,结果表明对As、Zn、Pb、Cd离子的固化效果好,浸出毒性低于国家标准。还分析了浸出液的pH值、Eh和溶解氧对重金属离子浸出浓度的影响。
The arsenical sludge clay were mixed up with a defined ratio and were made the brick. The paper introduces the study on toxicity extraction from arsenical sludge bricks, it is found the result of stabilization/solidification for As,Zn,Pb ,Cd is very good and the leachate toxicity of arsenical sludge bricks was lower than that set up by the national standard. And the, other factors such as pH, Eh and DO of leaching concentration of heavy metal are discussed.
出处
《能源环境保护》
2006年第2期40-43,共4页
Energy Environmental Protection
基金
教育部科学技术研究重点项目(2003-77-03102)
关键词
含砷污泥
制砖
浸出毒性
arsenical sludge
making brick
toxicity of leachate
