二硝基苯胺类农药生产废水预处理及伴生废物减量  

Pretreatment of dinitroaniline pesticide wastewaterand reduction of the associated waste

作　　者：闾文景 王超 王珏 陶健 章志成 姚俊[4] LüWenjing;Wang Chao;Wang Jue;Tao Jian;Zhang Zhicheng;Yao Jun(Zhejiang Gaoneng Environmental Engineering Technology Co.,Ltd.,Ningbo 315000,China;Zhejiang Renxin Environmental Science Academy Co.,Ltd.,Ningbo 315000,China;Taizhou Qingyi Environmental Engineering Co.,Ltd.,Taizhou 318000,China;Department of Environmental Engineering,Taizhou College,Taizhou 318000,China)

机构地区：[1]浙江高能环境工程技术有限公司,浙江宁波315000 [2]浙江仁欣环科院有限责任公司,浙江宁波315000 [3]台州市清逸环保工程有限公司,浙江台州318000 [4]台州学院环境工程系,浙江台州318000

出　　处：《工业水处理》2020年第4期64-66,75,共4页Industrial Water Treatment

基　　金：浙江省博士后科研项目(BSH1301014)。

摘　　要：通过酸析—铁碳微电解—Fenton氧化组合工艺对二硝基苯胺类农药生产废水进行预处理,并对工艺参数进行优化。酸析处理最佳工艺条件:pH为2.0;铁碳微电解最佳工艺条件:m(Fe)∶m(C)为2,投加量2.0 g/L;Fenton氧化处理最佳工艺条件:pH为2.5,H2O2投加量为293.8 mmol/L,无需额外投加Fe^2+。经预处理后,废水COD从24610 mg/L降至2543.4 mg/L,去除率达89.7%。BaCl2和PAM的投加可降低酸析废物的含水率,将酸析废物减量33.0%。Dinitroaniline pesticide wastewater is pretreated by the combined process of acid precipitation-Fe/C micro electrolysis-Fenton oxidation.The parameters of the treatment process are optimized.The optimum condition of acid precipitation is pH 2.0.The optimum condition of micro electrolysis treatment are m(Fe)∶m(C)=2,the dosage 2.0 mg/L.The optimum conditions of Fenton oxidation are:pH 2.5,dosage of H2O2293.8 mmol/L.No additional Fe2+is required.After the pretreatment,the COD of the wastewater decreases from 24610 mg/L to 2543.4 mg/L,and the removal rate reaches 89.7%.The moisture content of the acid precipitation waste can be reduced by adding BaCl2 and PAM,which can reduce the acid waste by 33.0%.

关 键 词：二硝基苯胺 农药生产废水 预处理 酸析废物 减量化 

分 类 号：X703[环境科学与工程—环境工程]