通过对湘乡制革厂废水处理工艺存在的问题进行分析和研究, 对其废水处理工艺在原有传统处理工艺的基础上进行了改造。废水经该工艺处理, 水质各项指标优于国家二级排放标准, 部分指标优于国家一级排放标准, 废水处理成本大幅度下降。同时可以从铬泥中回收金属铬, 回收率高。取得了良好的经济效益、社会效益和环境效益。

A traditional tanning wastewater treatment process has been improved by analyzing and studying the problems existed in Xiangxiang tanning factory. After the wastewater has been treated by this process, every index of water quality exceeds the second grade of discharge standand in China, part of the indexes exceed the first grade of discharge standard in China, and the cost of wastewater treatment is lessened to a great extent. The metal chromium can be recovered from chromium mud. The recovery rate of chromium is high at the same time. Better economic, social and environmental benefits have been obtained.