直流电与交流电凝聚法处理偶氮染料废水的对比研究_赵玉华.pdf

2 0 1 1 1 ( ) 　 Jan.　20 1 1 27 1　 JournalofShenyangJianzhuUniversity(NaturalScience) Vo.l27, No.1 :167 1-2021(20 11)01-0 125-05 1 1 2 1 1 赵玉华,苍晓艺,赵首权, 金德才, 董瑞蛟 (1., 110168;2., 266033 ) 　: 考查直流电凝聚法和交流电凝聚法对偶氮染料废水处理效果的差异.探索电流 密度对处理效果的影响. 以 皮为阳极,石墨柱为阴极, 改变电流密度, 分别用直流电和 交流电进行电凝聚对比试验. 直流电凝聚法对染料质量浓度的去除率随电流密度的增大 2 而增大,当电流密度为 0.083 mA/cm时, 染料质量浓度的去除率达到 97.63%.同时, 色度、 COD、氨氮也有一定的去除效果.而交流电凝聚法对偶氮染料废水的处理能力较差,其染料 Cr 质量浓度的最大去除率为 16.0 1%.直流电凝聚法在电解、絮凝等共同作用下可有效的处 理偶氮染料废水,而交流电凝聚法对偶氮染料废水的处理无明显效果. :;;; X-3 B :TQ610.9　　　:A　　　 ComparisonofRemovalEffectsinAzoDyedWastewaterbetween DirectCurrentandAlternatingCurrentElectrocoagulation 1 1 2 1 1 HAOYuhua, CANGXiaoyi, HAOShouquan, JINDecai, DONGRuijiao (1.SchoolofMunicipalandEnvironmentalEngineering, ShenyangJianzhuUniversity, Shenyang, Chin,a11016 8:2.Qingdao FirstMunicipalEngineeringLtd., Qingdao, China, 266033) Abstrac:tThepaperamiedtocomparethedifferenteffectsofremovingazodyeinwastewaterbetweend-i rectcurrent(DC)andalternatingcurrent(AC)electrocoagulationmethod,sandexploredthemipactofcurrent densityonthetreatmenteffec.tInthisexpermien,tironwasservedasanod,egraphitecolumnwasservedas cathod,ethecurrentdensitywaschanged, contrastiveexpermientswerecarriedoutwithDCandACelectro- coagulationmethod.sTheresultsshowedthattheremovalratioofazodyeconcentrationincreasedwiththe 2 increaseofthecurrentdensity, whenthecurrentdensitywas0.083 mA/cm, theremovalratioofazodye concentrationarrivedat97.63%, whichalsoremovedcolority, COD, NH-Ntoacertaindegree.Butthe