资源描述：
《臭氧_复合滤料生物滤池深度处理饮用水试验研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、第27卷第5期中国给水排水Vo.l27No.52011年3月CHINAWATER&WASTEWATERMar.2011臭氧/复合滤料生物滤池深度处理饮用水试验研究刘玮,武道吉,张青林(山东建筑大学市政与环境工程学院,山东济南250101)摘要:利用陶粒/颗粒活性炭组成新型复合滤料,同时结合臭氧氧化作用深度处理饮用水,考察了臭氧/复合滤料生物滤池深度处理饮用水的效果及有关参数对处理效果的影响。试验结果-表明,该生物滤池对浊度、UV254、COD
2、Mn、NO2-N的平均去除率分别为69.1%、43.2%、65.4%和+75.8%,对NH4-N的平均去除率可高达91.2%。随着空床接触时间的延长,对各污染物的去除率逐渐增大,综合对各指标的去除情况及经济因素,空床接触时间以15min左右为宜。对污染物的去除主要集中在滤池上部,去除效果的变化趋势与溶解氧浓度沿滤料层的变化趋势基本一致。+该生物滤池对污染物的去除效果与进水污染物浓度有关,经拟合,对CODMn和NH4-N的去除率与进水CODMn浓度呈对数关系,当CODMn为0~20mg/L时,随着进水CODM
3、n浓度的增大,对CODMn+的去除率逐渐增大,而对NH4-N的去除率逐渐降低。关键词:饮用水;臭氧/复合滤料生物滤池;深度处理;空床接触时间中图分类号:TU991文献标识码:C文章编号:1000-4602(2011)05-0047-04Ozone/BiofilterwithCompositeMediaforAdvancedTreatmentofDrinkingWaterLIUWei,WUDao-ji,ZHANGQing-lin(SchoolofMunicipalandEnvironm
4、entalEngineering,ShandongJianzhuUniversity,Jinan250101,China)Abstract:NewcompositefiltrationmediawerecomposedofceramsiteandGACandcombinedwithozoneforadvancedtreatmentofdrinkingwater.Thetreatmentefficiencyofozone/biofilterwithcom-positemediaandtheinfluen
5、ceoftherelevantparametersonthetreatmentefficiencywereinvestigated.-+Theresultsshowthattheaverageremovalratesofturbidity,UV254,CODMn,NO2-NandNH4-Nare69.1%,43.2%,65.4%,75.8%and91.2%respectively.Theremovalratesofallpollutantsarein-creasedwiththeincreaseofempt
6、ybedcontacttime(EBCT).TheEBCTshouldbe15minconsideringboththeremovalefficiencyandtherunningcos.tTheremovalofpollutantsmostlyoccursattheupperpartofthebiofilter,whichshowsthesametrendoftheDOconsumptiondistribution.Theremovalofpo-llutantsisrelatedwiththepollut
7、antsconcentrationintheinfluen.tTherelationshipbetweentheinfluent+CODMnconcentrationandtheremovalefficienciesofCODMnandNH4-Ncanbefittoalogarithmicfunc-tion.WhentheinfluentCODMnconcentrationisincreasedfromzeroto20mg/L,theremovalrateof+CODMnisincreasedbutthat
8、ofNH4-Nisdecreased.Keywords:drinkingwater;ozone/biofilterwithcompositemedia;advancedtreatmen;temptybedcontacttime(EBCT)47第27卷第5期中国给水排水www.watergasheat.com针对水中污染物的特性,根据饮用水深
