活性炭强化混凝去除水中的土臭素及2-甲基异莰醇
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2020-03-19 11:48:45
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第9卷第6期2015年l2月供水技术WATERTECHNOLOGYVo1.9No.6Dec.2015活性炭强化混凝去除水中的土臭素及2一甲基异莰醇区良益一,麦锦欢一,杨文杰,赵志伟,王晓,麦秀珊,李俊民4,孙天一(1.瀚蓝环境股份有限公司,广东佛山528200;2.广东省城市水循环与水质安全保障技术企业重点实验室(产学研>培育基地,广东佛山528200;3.哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090;4.吉林建筑大学市政与环境工程学院,吉林长春130118)摘要:以饮用水嗅味污染的典型物质土臭素及2一甲基异莰醇作为研究对象,分别考察了水厂常规工艺混凝沉淀、活性炭与不同混凝剂(聚合氯化铝、硫酸铝、氯化铁)强化混凝对嗅味物质的去除效果,并结合uV:浊度指标考察了3种混凝剂对投加活性炭后水体的净化效果。结果表明,常规工艺对嗅味物质的去除率较低,活性炭强化混凝对土臭素及2一甲基异莰醇的去除率较高,其中对GSM的去除率均达到90%以上,对2一MIB的去除率均达到80%左右,改变活性炭投加量及吸附时间对嗅味物质的去除率影响较大,而改变混凝剂的种类及浓度对嗅味物质的去除率影响不大,3种混凝剂中聚合氯化铝对投炭后水体的净化效果最好。关键词:活性炭;混凝剂;土臭素;2一甲基异莰醇中图分类号:TU991.24文献标志码:A文章编号:1673—9353(2015)06—0017—05doi:10.3969/j.issn.1673—9353.2015.06.004Removalofgeosminand2-methylisoborneolfromwaterbyactivatedcarbonenhancedcoagulationOuLiangyi一,MaiJinhuan,YangWenjie,ZhaoZhiwei,WangXiao一,MaiXiushan.LiJunmin.SunTianyi(1.GrandblueEnvironmentCo.,Ltd.,Foshan528200,China;2.GuangdongProvincialKeyLaboratoryofUrbanWaterCycleandWaterQualitySecurityTechnology,Foshan528200,China;3.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China;4.SchoolofMunicipalandEnvironmentalEngineering,jilinJianzhuUniversity,Changchun130118,China)Abstract:Takingthegeosminand2-methylisobomeolassubjects,whichwerethemainsubstancesofthetasteandodorcontaminationindrinkingwater,theremovaleffectofwaterworksconventionalprocess,suchascoagulation,sedimentationandenhancedcoagulationwithactivatedcarbonanddifferentcoagulants,suchaspolyaluminumchloride,aluminumsulfateandferricchloride,ontasteandodorsubstanceswereinvestigatedcombiningwithUV254andturbidityrespectively.Theresultsindicatedthattheremovalratewaslowerontasteandodorsubstancesbyconventionalprocess.Theremovalratesofgeosminand2-methylisoborneolwerehigherbyactivatedcarbonenhancedcoagulation.TheremovalrateofGSMwasabove90%.andof2-MIBwasabout80%.Thevariationofactivatedcarbondosageandadsorptiontimehadmoreinfluenceontheremovalrateoftasteandodorsubstances.Thevariationofcoagulanttypesandconcentrationhadlesseffectonremovalrateoftasteandodor·17·第9卷第6期供水技术
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