铁炭耦合Fenton试剂预处理DMF废水的研究  

Pretreatment of DMF wastewater by iron-carbon micro-electrolysis process combined with Fenton reagent

作　　者：董磐磐[1] 程爱华[2] 李杰[1] 王亚娥[1] 周岳溪[3] 

机构地区：[1]兰州交通大学环境与市政工程学院,兰州730070 [2]西安科技大学地质与环境学院,西安710054 [3]中国环境科学研究院,北京100012

出　　处：《工业用水与废水》2012年第3期8-11,27,共5页Industrial Water & Wastewater

基　　金：国家自然科学基金(51068015);国家水体污染控制与治理科技重大专项(2008ZX07207-004)

摘　　要：N-N二甲基甲酰胺(DMF)是一种对环境危害很大的有毒有机物,其时效性较长且难以生物降解。为了降解废水中DMF并增加废水的可生化性,采用铁炭微电解耦合Fenton氧化技术作为预处理方法。结果表明,在反应时间为60 min、铁炭体积比为1∶1、海绵铁投加量为70 g/L、pH值为3、H2O2(30%)的投加量为4 mL/L的最佳预处理条件下,DMF的去除率可达到70%以上。该方法简单易行,可作为难降解DMF废水的预处理方法推广使用。N-N-dimethylformamide（DMF） is a toxic organics characterized by long-term effect and poor biodegradability,which had great impact on the environment.For the purpose of degradating DMF and improving the biodegradability of the wastewater,iron-carbon micro-electrolysis process combined with Fenton reagent was used as the pretreatment technology.The results showed that,under the optimal condition that,the reaction time was 60 min,the volume ratio of iron to carbon was 1：1,the dosage of sponge iron and H2O2（30%） were 70 g/L and 4 mL/L respectively,the pH value was 3,the removal rate of DMF was above 70%.The said technology is simple and practicable,which can be used and popularized in hard-degradable wastewater pretreatment.

关 键 词：Fenton-氧化 微电解技术 DMF 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]