Different Leaching Procedures for Heavy Metal Toxicity of Waste PCBs
废弃线路板重金属浸出毒性方法的比较研究

The purpose of this paper is to evaluate the hazardous of heavy metals of waste printed circuit boards(PCBs) by using four kinds of methods(GB 5086.1-1997,GB 5086.2-1997 from China and 1311(TCLP),1312(SPLP) from USA),and the four kinds of methods are compared to choose a better way to identify toxicity characteristics of waste PCBs.The results show that the leaching concentrations of heavy metals(Cu,Pb,Ni,Mn,Zn and Fe) in the leachate after TCLP are much higher than that after the other three kinds of metho...