矿渣微粉基固化剂固结生活垃圾重金属研究  

Research of a Solidifying Agent Containing Miniral Slag to Consolidate Heavy Metals in Mineral and Municipal Wastes

作　　者：孙家瑛[1] 王志新[2] 乔燕[2] 

机构地区：[1]上海市市政工程研究院,上海200031 [2]上海大学环境工程学院,上海200072

出　　处：《武汉理工大学学报》2007年第3期71-74,共4页Journal of Wuhan University of Technology

基　　金：上海市科技发展种子基金(0323H1362)

摘　　要：利用矿渣微粉为主要原材料配制了一种固化剂来固结生活垃圾中的重金属,并根据固体废弃物的毒性溶出程序检验了Cu、Zn、Pb、Cd、Ni、Cr在固化剂中的固结效果。结果表明:采用矿渣基固化剂固结生活垃圾的强度可达30 MPa以上,长期强度无倒缩现象。同时固化剂对上述重金属有很好的固结效果。利用红外光谱(IR)、X射线衍射(XRD)和多级提取等测试手段对其固结机理进行分析,固化剂固结重金属的机理为物理固封和化学键连结的共同作用。A kind of solidifying agent was made to consolidate heavy metals in mineral and municipal wastes by using of slag. According to the solid waste＇s toxic leaching process, the consolidation result of Cu,Zn,Pb, Cd, Ni,Cr could be tested. Researching results demonstrated that the solidifying agent had great effect of consolidation to heavy metals. Then method of IR, XRD and sequential extraction were used to analyze the mechanism of consolidation. The result showed that the physical fixation combined with chemical link was the mechanism of consolidation.

关 键 词：矿渣微粉 固化剂 重金属 固结 

分 类 号：X705[环境科学与工程—环境工程]