电化学处理黄姜生化尾水研究

第33卷第8期2013年8月环境科学学报ActaScientiaeCircumstantiaeVol.33,No.8Aug.,2013基金项目:国家自然科学基金优秀青年基金项目(No.51222802)SupportedbytheNationalNaturalScienceFoundationofChina(No.51222802)作者简介:卢凯歌(1986—),男,E-mail:lukaige.happy@163.com;∗通讯作者(责任作者),E-mail:zhaoxu@rcees.ac.cnBiography:LUKaige(1986—),male,E-mail:lukaige.happy@163.com;∗Correspondingauthor,E-mail:zhaoxu@rcees.ac.cn卢凯歌,李新宝,吕建波,等.2013.电化学处理黄姜生化尾水研究[J].环境科学学报,33(8):2174-2180LuKG,LiXB,LüJB,etal.2013.Electrochemicaltreatmentofbiotreatedeffluentofturmericwastewater[J].ActaScientiaeCircumstantiae,33(8):2174-2180电化学处理黄姜生化尾水研究卢凯歌1,2,李新宝1,吕建波2,3,赵旭2,∗1.华北水利水电学院环境与市政工程学院,郑州4500112.中国科学院生态环境研究中心环境水质学国家重点实验室,北京1000853.天津城市建设学院环境与市政工程学院,天津300384收稿日期:2013-02-05修回日期:2013-03-21录用日期:2013-03-21摘要:黄姜提取皂素过程中会产生大量废水,传统的生化方法难以去除这些废水中的难降解有机污染物.因此,本文以黄姜皂素生化尾水为研究对象,分别采用DSA+铁电极组合、不锈钢+铁电极组合、单独钛钌网电极(DSA)对其进行深度处理.结果表明,在原水CODCr为150mg·L-1,色度为200度,Cl-浓度为3338mg·L-1的情况下,不锈钢+铁电极组合、单独DSA电极处理后CODCr去除率分别为35%和43%,色度去除率分别为78.7%和84.6%.相较而言,DSA+铁电极组合在电流密度为95A·m-2、初始pH=7.28时处理30min后,CODCr和色度的去除率分别达到62%和99.5%.采用紫外光谱、三维荧光光谱和凝胶色谱对水质变化进行了详细分析.结果表明,水中难降解有机组分被降解矿化,生成分子量较小的脂肪酸.关键词:黄姜废水;难降解有机物;电混凝;电氧化文章编号:0253-2468(2013)08-2174-07中图分类号:X703.1文献标识码:AElectrochemicaltreatmentofbiotreatedeffluentofturmericwastewaterLUKaige1,2,LIXinbao1,LÜJianbo2,3,ZHAOXu2,∗1.InstituteofEnvironmentalandMunicipalEngineering,NorthChinaUniversityofWaterResourcesandElectricPower,Zhengzhou4500112.StateKeyLaboratoryofEnvironmentalAquaticChemistry,ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing1000853.SchoolofEnvironmentalandMunicipalEngineering,TianjinInstituteofUrbanConstruction,Tianjin300384Received5February2013;receivedinrevisedform21March2013;accepted21March2013Abstract:LargeamountsofwastewaterareproducedintheextractionprocessforDiosgen.Therefractoryorganiccomponentsinthewastewatercannotbeefficientlyremovedbyconventionalbiologicalmethods.Inthisstudy,treatmentofturmericwastewaterbyelectrochemicalprocesswithvariouselectrodeswereperformedandcompared.ThecontentofCODCr,colordegr