强化混凝超滤组合工艺对有机污染物去除效能的研究_刘百仓
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2020-05-04 15:03:30
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给水排水Vol.37增刊201123强化混凝超滤组合工艺对有机污染物去除效能的研究刘百仓1,2陈洁1,2梁英1,2张永丽1,2王争辉3马军3(1四川大学建筑与环境学院,成都610065;2四川大学水力学与山区河流开发保护国家重点实验室,成都610065;3哈尔滨工业大学市政环境工程学院,哈尔滨150090)摘要为了进一步提高水质处理效果,采用强化混凝超滤的组合工艺对湖水进行处理,考察该组合工艺对有机物的去除效能,及影响有机物去除效能的因素。试验结果表明:①强化混凝超滤组合工艺对原水浊度的去除效果较好,对TOC和UV254的去除效果也明显优于传统水处理工艺;②原水中UV254含量的波动,对UV254的去除率和滤后水UV254含量影响并不大。原水中TOC含量的波动,对TOC的去除率有很大的影响,对滤后水TOC含量的影响并不大。TOC的去除率普遍高于UV254的去除率;③根据原水和滤后水SUVA值的变化发现,强化混凝超滤组合工艺对亲水性有机物的去除率大于该工艺对疏水性有机物的去除率。在一定范围内,pH的变化对TOC和UV254去除率变化趋势相反。关键词强化混凝超滤地表水有机物去除效能TheremovalefficiencyoforganicmattersbyenhancedcoagulationandultrafiltrationprocessesLiuBaicang1,2,ChenJie1,2,LiangYing1,2,ZhangYongli1,2,WangZhenghui3,MaJun3(1.CollegeofArchitectureandEnvironment,SichuanUniversity,Chengdu610065,China;2.StateKeyLabofHydraulicsandMountainRiverEng.,SichuanUniv.,Chengdu610065,China;3.SchoolofMunicipalandEnvironmentalEngineering,HarbinInstituteofTechnology,Harbin150090,China)Abstract:Inordertoimprovethewatertreatmentquality,enhancedcoagulationultrafiltrationprocesseswereemployedtotreatlakewater.Theresearchstudiestheremovalefficiencyoforganicmattersinthecombinedprocessesandtheinfluencefactorswhichaffecttheremovaloforganicmatters.Theresultsshowthat:(1)theremovalefficiencyofturbidityisveryhigh,andtheTOCandUV254removalefficiencyisbetterthanthatintraditionaltreatmentprocess;(2)theremovalefficiencyandtheamountofUV254arenotsensitivetothevariationsofUV254ofrawwater.There-movalefficiencyofTOCissignificantlyaffectedbytheTOCofrawwater,andtheTOCconcentra-tionafterultrafiltrationisnotsensitivetotheTOCofrawwater.TheremovalefficiencyofTOCishigherthanthatofUV254;(3)theremovalefficiencyofhydrophilicorganicmatterishigherthanthatofhydrophobicorganicmattersinenhancedcoagulationultrafiltrationprocessesbasedonthevariationsofSUVAinrawwaterandafterultrafiltration.ThevariationofpHisoppositewiththeremovalefficiencyofTOCandUV254tosomeextent.Keywords:Enhancedcoagulation;Ultrafiltration;Surfacewater;Organicmatter;Removalefficiency中央高校基本科研业务费四川大学青年教师科研启动基金资助项目(2009SCU11046);水资源与水电
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