印染废水处理的成功改造

Successful Reconstruction of the Printing and Dyeing Wastewater Treatment

广东某纺织制衣有限公司的生产和生活的综合污水原工艺采用缺氧—厌氧—生物接触氧化法工艺,单套工艺系统处理能力为104m3/d,总处理能力105m3/d。运行的头两年水质都达到了广东省地方标准DB4426中的一级标准。但运行几年后,处理的排放水质浓度逐渐升高,经常有COD超标排放的现象。后经工程改造,大大提高污水在生化系统的降解率,保证了污水达标排放。

The comprehensive wastewater of production and life that produced by a Guangdong textile garment Co. Ltd., using anaerobic - anaerobic - biological contact oxidation process. The processing capacity of single process system was 104 m3/d, and the total processing capacity of 105 m3/d. The first two years water quality can reach the level of Guangdong provincial standard DB4426 standard. But after a few years, processing discharge water quality concentration gradually raised, often have the phenomenon of excess emissions of COD. After the reconstruction, greatly improve the degradation rate in the biochemical system to ensure that the sewage can be discharged standard.