含高比例印染和制革废水的城市污水深度处理研究  

Advanced Treatment of Municipal Wastewater with High Content of Printing and Dyeing Wastewater and Tannery Wastewater

作　　者：朱爽[1] 韩万玉[1] 毛加[1] 余浩[1] 

机构地区：[1]华东勘测设计研究院,浙江杭州310014

出　　处：《中国给水排水》2012年第23期111-113,共3页China Water & Wastewater

摘　　要：海宁市某污水处理厂进水中的印染和制革废水比例超过80%,其生化处理出水不能达到GB 18918—2002的一级B标准。鉴于此,分别采用Fenton试剂氧化法、Fenton试剂氧化+生化法、臭氧氧化法、臭氧氧化+生化法对其进行深度处理。结果表明,Fenton试剂氧化法、臭氧氧化法、臭氧氧化+生化法这3种工艺的出水水质均不能达到一级B标准。而对于Fenton试剂氧化+生化法,在进水pH值为3、Fenton反应时间为1 h、COD∶Fe2+∶H2O2=8∶1∶2、生化池的HRT为6 h的最优条件下,出水COD、BOD5、SS、NH3-N和TP的浓度分别为57.32、9.85、8.17、0.87和0.36 mg/L,pH值为7.12,可以达到一级B标准;另外,采用氢氧化钙代替氢氧化钠调节pH值,可使处理成本由0.627元/m3降至0.481元/m3。The proportion of printing and dyeing wastewater and tannery wastewater was over 80% in the influent of a wastewater treatment plant in Haining. The effluent could not meet the first level B criteria specified in GB 18918 -2002. Based on this situation, Fenton reagent, Fenton reagent ＋ bio- chemistry, ozonation, ozonation ＋ biochemistry were used to undergo advanced treatment. The results showed that the effluent quality from processes using Fenton reagent, ozonation and ozonation ＋ bio- chemistry could not meet the first level B criteria. When the optimum conditions were ： pH = 3, Fenton reaction time = 1 h, COD ： Fe2＋： H202 =8 ： 1 ： 2 and HRT of biochemistry tank =6 h, the concentra- tions of COD, BOD5, SS, NH3 -N and TP in the effluent from the Fenton reagent ＋ biochemistry process were 57.32, 9.85,8.17, 0.87 and 0.36 mg/L respectively, and the effluent pH =7.12, which could meet the first level B criteria. Besides, the treatment cost could reduce from 0. 627 yuan/m3 to 0. 481 yuan/m3 when pH was adjusted by Ca（ OH）2 instead of NaOH.

关 键 词：印染和制革废水 城市污水 深度处理 FENTON试剂 臭氧 

分 类 号：X79[环境科学与工程—环境工程]