水泥固化污泥中重金属的浸出试验研究  

Leaching Experimental Study for the Heavy Metals in the Sludge Solidified by Cement

作　　者：王晶[1] 周永祥[1] 王伟[1] 何更新[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《建材世界》2014年第6期25-28,共4页The World of Building Materials

基　　金：国家"十二五"科技支撑计划课题"固体废弃物本地化再生建材利用成套技术"(2011BAJ04B05);国家科技支撑计划课题(2012BAB18B04)

摘　　要：通过对不同掺量比例的电镀污泥和生活污泥砂浆试样的重金属浸出试验,研究了水泥固化作用对污泥中重金属浸出的影响。研究结果表明,重金属浸出浓度随着污泥掺量比例的提高而增大;不考虑物理稀释作用,同种类污泥的砂浆试样的重金属浸出浓度比较接近;随着养护龄期的延长,重金属浸出浓度呈降低趋势。The effect of the cement solidification on the leaching of heavy metals in the sludge was studied by the leaching experiment of the heavy metals in the different proportions of electroplating sludge and sewage sludge mortar specimen.The results show that the leaching concentration of heavy metals increase with the proportion of sludge.Ig-noring with the effect of physical dilution,the leaching concentration of heavy metals of the same kind of sludge mortar specimen have no significant difference.The leaching concentration of heavy metals decrease with curing time.

关 键 词：水泥 污泥 重金属 浸出 固化 

分 类 号：TU52[建筑科学—建筑技术科学] X703[环境科学与工程—环境工程]