分析化学实验废液中Pb^(2+)、Bi^(3+)的回收与再利用

Recycling and using again Pb^(2+)、Bi^(3+) waste liquid of analytical experiment

本文研究了用硫化钠作沉淀剂回收并重新利用分析化学实验中Pb2+、Bi3+废液的方法,该法操作简便、成本低廉、回收率高等特点。

The article studies the way that recycles and uses again Pb^2＋、Bi^3＋ of analytical experiment regarding Na2S as sediment.this way is simple and convenient in operation and cheap in cost, through this the rate of recycling Bi^3＋ can Reach 94.28% and the rate of Pb^2＋recycling 97.17%.