Fenton高级氧化法深度处理焦化生化废水的实验研究  

Experimental study on the advanced treatment of bio-chemically treated coking wastewater by the advanced Fenton oxidation process

作　　者：杨水莲[1] 田晓媛[1] 吴滨[1] 王威燕[1] 杨运泉[1] 

机构地区：[1]湘潭大学化工学院,湖南湘潭411105

出　　处：《工业水处理》2014年第10期26-29,共4页Industrial Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2010ZX07212-008);湖南省自然科学省市联合基金项目(14JJ5027)

摘　　要：采用硫酸亚铁和过氧化氢所构成的Fenton试剂，对经生化处理后的焦化废水进行Fenton高级氧化深度处理。重点考察了废水初始pH，FeSO4·7H2O、H2O2及PAM投加量对焦化生化废水处理效果的影响。结果表明，采用Fenton高级氧化法可使经生化处理后的焦化废水中的COD、NH3-N和色度得到进一步有效去除。对于中等浓度的焦化生化废水，较适宜的Fenton氧化工艺条件：废水初始pH为8-10，FeSO4·7H20投加量为500mdL，H2O2投加量为3．5mUL，PAM投加量为4．0mg/L。在此条件下，COD、NH3-N和色度的去除率分别可达85．9％、97．3％和84．6％。The Fenton reagent used was made from ferrous sulphate and hydrogen peroxide. It is used in the advanced treatment of coking wastewater which was bio-chemically treated. The effects of the initial pH, and dosages of FeSO4.7H2O, H2O2 and PAM on the treatment effectiveness of the bio-ehemically treated coking wastewater have been investigated. The results show that using the advanced Fenton oxidation process can effectively remove the COD, NH3-N and chroma from this kind of coking wastewater. For bio-chemically treated coking wastewater with moderate concentration, the optimum conditions for Fenton oxidation process are as follows ： the initial pH of waste- water is 8-10, dosage of FeSO4·7H2O 500 rag/L, dosage of H2O2 3.5 mL/L, and dosage of PAM 4.0 mg/L. Under these conditions, the removing rates of COD, NH3-N and Chroma can reach 85.9%, 97.3% and 84.6%, respectively.

关 键 词：FENTON氧化 焦化废水 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]