复配药剂用于印染废水提标改造工程

Application of Compound Chemicals to Upgrading and Reconstruction of Printing and Dyeing Wastewater Treatment Project

广东某纺织制衣公司原有废水处理系统采用厌氧/好氧/臭氧氧化/加氯脱色工艺,出水COD和TP不能满足排放要求,因此在原有接触氧化池后增加絮凝工艺,同时投加复配药剂,并利用原有沉淀及臭氧氧化工艺,可以使最终出水水质达到《纺织染整工业水污染物排放标准》(GB 4287—2012)表3标准,且省去了原有的加氯脱色工艺。整个工程改造只需增加钢结构的絮凝反应池及配套加药系统,改造进度快、投资费用低、处理效果好。

As COD and TP in effluent of anaerobic/aerobic/ozone oxidation/chlorine bleaching process in a textile clothing company in Guangdong Province failed to meet the new discharge standards, flocculation process was added after original contact oxidation tanks, and compound chemicals were used. With the addition of compound chemicals and using the original sedimentation and ozone oxidation proces- ses, the effluent quality could meet the table 3 standards in Discharge Standards of Water Pollutants for Dyeing and Finishing of Textile Industry （GB 4287 -2012） , and chlorine bleaching process could be e- liminated. Only flocculant tanks with steel structure and matching chemicals dosing system were needed in the whole project reconstruction. It was proved that this reconstruction was fast, cheap and efficient.