某工业园牛仔服装洗水废水集中处理工程实例

PROJECT CASE OF CENTRALLY TREATING JEANS-RINSING WASTEWATER IN AN INDUSTRIAL PARK

广东佛山市某工业园内污水处理厂采用混凝/生物接触氧化工艺对牛仔服装洗水废水进行集中处理,进水水量30 000 m3/d,水质ρ(COD)=411 mg/L、ρ(BOD5)=147 mg/L、ρ(SS)=313 mg/L、色度为239倍、pH=7～9,出水相应指标分别为ρ(COD)=53 mg/L、ρ(BOD5)=16 mg/L、ρ(SS)=32 mg/L、色度为8倍、pH为7.5,达到广东省地方标准DB 44/26—2001《水污染物排放限制》第二时段中的一级标准。此工艺具有工程投资少、运行稳定、处理效果好、成本低等优点。

In an industrial park of Guangdong Foshan, the sewage treatment plant uses coagulation-bio-contact oxidation process to treat jeans-rinsing wastewater centrally, quantity of incoming water is 30 000 m^3/d, COD concentration of water quality is 411 mg/L, BOD5 = 147 rag/L, SS = 313 mg/L, ehroma = 239 times and pH = 7 - 9 ; the effluent corresponding indexes are COD =53 mg/L, BOD5 = 16 rag/L, SS = 32 rag/L, chroma = 8 times and pH = 7.5, which are up to the firstorder at the second time interval of Guangdong Province ＂ Water Pollutant Emission Limit＂ （ DB 44/26-2001 ）. It has advantages of less engineering investment, stable operation, good treatment effect and low cost, etc.