文献类型：期刊文献

中文题名：印染废水生化出水中各类有机物在Fenton氧化过程中的去除效果

英文题名：Removal effect of different organic fractions from bio-treated effluent of dye wastewater by Fenton reagent

作者：李新[1];刘勇弟[1];孙贤波[1];徐宏勇[1];钱飞跃[1];李欣珏[1];李暮[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2012

卷号：6

期号：11

起止页码：3953

中文期刊名：环境工程学报

外文期刊名：Chinese Journal of Environmental Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家"863"高技术研究发展计划重点项目(2009AA063904)

语种：中文

中文关键词：印染废水生化出水;Fenton试剂氧化;树脂分离

外文关键词：bio-treated effluent of dye wastewater; Fenton reagent; resin separation

摘要：考察了Fenton氧化法处理印染废水生化出水时,不同因素对色度去除效果的影响。在最佳处理条件下,即[H2O2]∶[Fe2+]为6∶1,反应初始pH为4.0,H2O2和FeSO4的投加量分别为3.6 mmol/L和0.6 mmol/L,反应时间为30min,UV254、DOC和COD的去除率分别达到了84%、52%和84%,ADMI7.6和稀释倍数表征的色度去除率分别达到了94%和96%。通过XAD-8/XAD-4吸附树脂联用技术将印染废水生化出水中溶解性有机物分为疏水酸、非酸疏水物质、弱疏水物质及亲水物质4类有机物。实验结果表明,对于该印染废水的生化出水,疏水性物质是引起色度的主要物质,所占比例以ADMI7.6表征时为92%,其中以非酸疏水物质的贡献最大,达到53%。Fenton试剂氧化处理对此水样中的非酸疏水物质和疏水酸均有较好的去除效果,对弱疏水性有机物和亲水性有机物去除率较低。
The influences of different factors on the color removal effect of bio-treated effluent of dye wastewater by Fenton oxidation were studied.Removal rates of UV254,DOC and COD are 84%,52% and 84%,respectively under optimal conditions,i.e.∶ of 6∶ 1,initial pH of 4.0,H2O2 dosage of 3.6 mmol/L,FeSO4 dosage of 0.6 mmol/L and reaction time of 30 min.The color removal rates of ADMI7.6 and dilution rate reach 94% and 96%,separately.DOM of bio-treated effluent of dye wastewater was fractioned by XAD-8 and XAD-4 resins to four types of organic matter,hydrophobic acids,non-acid hydrophobics,transphilics and hydrophilics.Results showed that hydrophobic substance is the major color-caused fraction,accounting for 92% of ADMI7.6,in which 53% is non-acid hydrophobics.Fenton reagent oxidation can effectively remove non-acid hydrophobics and hydrophobic acids,but its removal rate for transphilics and hydrophilics is low.