电Fenton法处理染料废水的研究  

Research on the Treatment of Dyeing Wastewater with Fenton Process

作　　者：王喜全[1,2] 杨静[3] 韩成斌 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳114004 [2]辽宁科技大学化工学院环境工程系,辽宁鞍山114051 [3]河北建材职业技术学院,河北秦皇岛066004 [4]常州仲纳化工有限公司,江苏常州213022

出　　处：《河北化工》2011年第1期63-65,共3页Hebei Chemical Industry

基　　金：辽宁省教育厅科技攻关A类项目(高等学校科研项目);项目编号:2008334

摘　　要：采用Fenton法预处理染料废水,对影COD色度去除率的各种因素,包括内电解反应的初始pH值、铁的投加量、铁炭投加比,Fenton试剂氧化处理过程中初始pH值、H_2O_2的投加量及投加方式、反应时间等进行了研究。结果表明,内电解反应的最佳条件为:pH值为3.0,铁的投加量为25 g/L,Fe/C为1:1.3;Fenton试剂氧化处理染料废水的最佳条件为:H_2O_2投加量为30mmol/L,pH值为内电解出水pH值(4.0左右),反应时间为50min。COD去除率可达58%,色度去除率可达95%以上,B/C的值也由原来的0.08提高到0.36左右。The factors which influence the the removal efficiency of COD and chromaticity including the initial pH, dosage of Fe, the Fe/C ratio ,the dosage of H2O2, the type of activator and the reaction time were studied in the process of electro-Fenton treatment to the dyeing wastewater. The test results showed that the internal electrolysis optimal initial pH was 3.0, dosage of Fe was 25 g/L and the Fe/C ratio was 1： 1.3. The Fe3＋ from the internal electrolysis can be used in Fenton oxidation process, so can save the application amount of the reagent. The optimal terms of Fenton oxidation processes were as follows： the reaction time was 50 rain, the dosage of H2O2 was 30 mmol/L, and the pH was the internal electrolysis dying （the pH was about 4.0）. The maximum removal efficiency of CODc, may reach to 58% and the removal efficiency of chromaticity can be more than 95% as well as the ratio of BOD5/CODCr can be raised from 0.08 to 0.36 under above conditions.

关 键 词：染料废水 预处理 电FENTON 铁碳内电解法 FENTON试剂氧化法 

分 类 号：X788[环境科学与工程—环境工程]