含镉废水处理的试验研究

本文对含镉废水的治理进行了不同处理法的研究探讨。结果表明，硫化物──聚合硫酸铁沉定法、铁氧体法操作简单、效果理想，具有较好的应用前景。本研究优先推荐硫化物──聚合硫酸铁沉淀法，该法的条件易于控制、ｐＨ值适应范围大，除镉效果好，并能同时去除其它重金属离子。镉去除率达９９．６％以上，铜和锌的去除率达９９．４％以上。

STUDY ON THE TREATMENT OF CADMIUM CONTAINING WASTEWATER

This paper probes into diferent methods of cadmium containing wastewater treatment.The study indicates that either sedimentation by adding sulphide and polyferric sulphate or ferrooxidant method has sim ple operation process, perfect effects and extensive application prospects. However, the results of the studyrecommened the former. The sedimentation treatment with sulphide and polyferric sulphate is easy to control, suitable for a wider range of PH. A higher effeciency up to 99.6%, of cadmium removed can bereached with mere than 99.4% of copper and Zine being removed at the same time.