摘要
砷钙渣是矿山和冶炼酸性含砷废水处理的沉淀产物,研究对比了焙烧结晶法、铁盐固化法和固化处理法三种砷钙渣稳定化处理方法,考察了各种工艺条件对砷钙渣中As浸出毒性的影响。结果表明,固化处理法处理效果优于其它两种方法,最佳固砷率为99.5%,As浸出毒性结果 <0.3 mg/L,符合国标《生活垃圾填埋场污染控制标准》(GB 16889-2008)要求。
Comparing the roasting crystallization, iron salt curing and curing processing method, the influence of various process conditions on the arsenic leaching toxicity of arsenic - calcium slag were examined. Results show that the performance of curing treatment method was better than the other two, the best arsenic fixing rate was 99.5% with the As leaching toxicity 〈 0.3 mg/L, in
出处
《矿产保护与利用》
2013年第3期51-54,共4页
Conservation and Utilization of Mineral Resources
基金
福建省区域重大项目(No.2011H4025)
关键词
砷钙渣
稳定化处理
As浸出毒性
砷
arsenic -calcium slag
stabilizing treatment
arsenic leaching toxicity
