加热酸化-Fenton氧化处理乳化液废水  

Treatment of emulsion wastewater with heating and acidification-Fenton oxidation

作　　者：蒲维肖[1,2] 刘丹丹[1,2] 王志强[1,2] 陈文清[1,2] 

机构地区：[1]四川大学建筑与环境学院,成都610065 [2]川大-日立环境应用研究中心,成都610065

出　　处：《环境工程学报》2013年第10期4027-4031,共5页Chinese Journal of Environmental Engineering

摘　　要：采用加热酸化-Fenton氧化处理乳化液废水,在加酸量为1.0 mL 98%H2SO4/100 mL乳化液、加热温度95℃、加热时间1 h条件下,初始COD>20万mg/L,浊度>8 000 NTU的乳化液COD降低到46 592 mg/L,浊度降低到20 NTU,加热和酸化的联合过程达到了良好的破乳效果;破乳后的出水在ρ(Fe2+)/ρ(H2O2)=1∶30、ρ(H2O2)/ρ(COD)=1.4、pH=4的条件下进行Fenton氧化,处理后的出水COD可降到18 600 mg/L,去除率达61.4%,其B/C可由破乳后的0.11提高到0.43,废水的可生化性大大提高,为后续处理创造了可能。The heating and acidification-Fenton oxidation process was used in the treatment of emulsion wastewater. Under the conditions of heating time of 1 h, heating temperature of 95℃ and H2SO4 （98%） dosage of 1.0 mL in 100 mL emulsion, emulsion with an initial COD over 200 000 mg/L and turbidity over 8 000 NTU was reduced to 46 592 mg/L COD and 20 NTU turbidity, which shows the associated process of heating and a- cidification can get a good demulsification effect. Then in the Fenton oxidation, under the conditions of the initial pH of 4, H2 O2/COD of 1.4, Fe2＋/H2 O2 of 1/30, the COD of the effluent arrived 18 600 mg/L and the removal rate reached 61.4%. In addition, the B/C of wastewater increased to 0.43 from 0.11 after Fenton oxidation, which makes it possible for further treatment.

关 键 词：乳化液 加热 酸化 破乳 FENTON氧化 

分 类 号：X703.1[环境科学与工程—环境工程]