印染废水处理工艺设计探讨

Discussion on the design for the treatment process of printing and dyeing wastewater

较高浓度印染废水属于较难治理的工业废水。为提高印染废水处理效果,通过试验提出混凝—厌氧水解—好氧处理工艺,应用于如皋协和印染厂,出水可达到纺织染整工业水污染物排放标准(GB 4287—1992)中一级标准。介绍了试验过程、设计参数及经济指标。

The highly concentrated printing and dyeing wasterwater is a kind of industrial wastewater which is hard to be treated. In order to improve the effect of printing and dyeing wastewater treatment,it is concluded a coagulant- anaerobic acidification-aerobic technique is put forward through experiments.This technique is applied to water treatment of Rugao Xiehe Printing and Dyeing Factory and the effluent has reached the First Grade Discharge Standard of Water Pollutants from Dyeing and Finishing of Textile Industry（GB 4287-1992）.It introduces experiment process, design parameter and economic index.