【摘要】 采用"气浮-混凝沉淀-水解酸化-生物接触氧化-混凝沉淀-过滤"组合工艺处理洗瓶废水,处理规模50m3/d,原水COD 1500mg/L、BOD5600mg/L、NH3-N 30mg/L、SS 150mg/L,处理后出水水质满足《城镇污水处理厂污染物排放标准》(GB18918-2002)规定的一级A类标准,即COD≤50mg/L、BOD5≤10mg/L、NH3-N≤5(8)mg/L、SS≤10mg/L。实践表明:该工艺运行稳定可靠、易于操作、无二次污染,还可节约水资源。更多还原

【Abstract】 The combined process of gas flotation,coagulating sedimentation,hydrolytic acidification,biological contact oxidation,coagulating sedimentation and filtration process was used to treat the bottle washing sewage with a treatment capacity of 50 m3/d.The influent COD,BOD5,NH3-N and SS are 1500 mg/L,600 mg/L,30 mg/L and1000 mg/L.After treatment,the effluent quality meets the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002),that is,COD≤50 mg/L,BOD5≤10 mg/L,NH3-N≤5(8)mg/L and SS≤10 mg/L.Meanwhile,it runs stably and reliably and saves water resources without seconday pollution.更多还原