家用废弃干电池重金属浸出性探究

Inquiry on Leachability of Heavy Metal in Used Household Alkaline Dry Batteries

为了探究废旧干电池的浸出毒性,利用蒸馏水对2种破碎程度（1%和100%）的某品牌碱性干电池进行了分级浸取研究,对浸出液分别进行了汞、镉、铅、锌的测定。结果表明此品牌电池在实验条件下,汞未检出,但镉、铅、锌均可以检出,而且浸出液中的Zn浓度超过了污水综合排放标准。目前已有废旧电池回收利用技术,建议从我做起,积极分类回收废旧电池。

In order to explore the leaching toxicity of used household alkaline dry batteries,broken rate of 1% and 100% batteries were leached graded through distilled water and mercury,cadmium,lead and zinc were determined respectively.Research results showed that mercury was not detected in the leached solution,but cadmium,lead,zinc could be detected and concentration of zinc in the liquid was higher than integrated wastewater discharge standard.Waste batteries should be recycled positively.