Fe/C微电解-超声波/Fenton氧化-活性炭吸附处理仲丁灵农药废水  

Treatment of Butralin production wastewater by iron-carbon microelectrolysis,Fenton oxidation and activated carbon adsorption

作　　者：邱俊[1] 朱乐辉[1] 裴浩言[1] 孙娟[1] 

机构地区：[1]南昌大学环境与化学工程学院,江西南昌330031

出　　处：《环境污染与防治》2009年第4期53-56,共4页Environmental Pollution & Control

摘　　要：采用Fe/C微电解-超声波/Fenton氧化-活性炭吸附处理高色度、高COD、高盐分、高毒性的仲丁灵农药废水。试验结果表明:(1)Fe/C微电解处理仲丁灵农药废水的最佳条件:pH为4,铁屑投加量为0.5mol/L,Fe与C摩尔比为2∶1,反应时间为4h。(2)Fenton氧化的最佳条件:pH为4,FeSO4.7H2O投加量为0.03mol/L,H2O2投加量为0.4mol/L,反应时间为2h。(3)在Fenton氧化的最佳条件下,超声波/Fenton氧化对COD去除率最高(平均约为80%)。(4)当吸附时间为2h、pH为6、活性炭投加量为20g/L时,COD去除率可达90.5%。(5)采用Fe/C微电解-超声波/Fenton氧化-活性炭吸附处理后,COD、色度均可达到《污水综合排放标准》(GB8978—1996)中的一级标准。A highly colored and salty Butralin production wastewater of very high COD and low biodegradability was sequentially treated by iron-carbon micro electrolysis, Fenton oxidation with and without enhancement by UV or ultrasound, and activated carbon adsorption. Many series of experimental runs were performed to optimize each of the three treatment steps. The ultrasound was much more effective than UV irradiation for enhancement of the Fenton oxidation. Operating under the most effective treatment conditions （pH, Fe ： C, contact time, Fenton regents, ultra-sound, reaction time, activated carbon dose） the final effluent of the combined treatment met the first class national wastewater discharge standard of COD〈100 mg/L （GB 8978-1996）.

关 键 词：FE/C微电解 超声波/Fenton氧化 活性炭吸附 仲丁灵农药废水 

分 类 号：X703[环境科学与工程—环境工程]