摘要：

作者对磷化废水的处理技术进行了实验研究,提出以二次氧化法降低COD_Cr值,以石灰乳脱除磷、锌等污染物的处理工艺。结果表明,采用该方案处理磷化废水,具有方法简单,净化效率高,经济实用等特点。最后排放的污水完全符合国家综合污水排放标准。

关键词: 磷化废水, 氧化工艺, 除锌, 除磷

Abstract:

The paper discusses the treatment of wastewater from bonderizing process by experiments and proposes a way of decreasing COD_Cr by oxidation for twice and the removal of Zn, P by slaked lime. The results accordes with the demands of GB8978-1988 and indicates that it is a simple, effective and economical way.

Key words: wastewater from bonderizing process, oxidation, removal of Zn, removal of P

中图分类号: 

• X703