贵金属深加工的废水处理方案

The Treatment of Waste Water from the Deep Processing Procedure of Precious Metals

金银等贵金属实现其工业用途的前提是对其进行深加工,在深加工过程中产生的大量含酸、碱、重金属和氰化物的废水对环境造成的危害已经成为社会极为关注的问题。本文对这类废水的来源和常用处理方法进行了论述,提出一套适合于以金银作为深加工对象的废水处理方案,在保证充分回收贵金属的前提下,合理地使废水中的氰化物、重金属、酸和碱得到有效的处理。本方案具有经济、简便和实用的特点。

The deep processing procedure (DPP) on precious metals has created a great deal of wastewater containing acid and base, heavy metals and cyanide. The harmfulness from the wastewater, pollution on the environment has paid more and more attentions all around the world. In this paper, the source and the most frequently - used treating methods on such wastewater have been reviewed in detail, and a successful process to treat the DPP waste water of silver and gold has been put forward herein, it is efficiency in treating wastewater containing acid and base, heavy metals and cyanide, as well as in recovering precious metals. This process is economical and convenient, and suitable for middle and little scale enterprises.