陶瓷膜组合工艺对水中甲硫醚去除效果研究  

Performance of Combined Ceramic Membrane Process for Removing Dimethyl Sulfide from Water

作　　者：谢宇铭[1] 张锡辉[1] 

机构地区：[1]清华大学深圳研究生院环境工程与管理研究中心,广东深圳518055

出　　处：《环境科学与技术》2011年第8期131-133,138,共4页Environmental Science & Technology

基　　金：国家水体污染控制与治理科技重大专项(2008ZX07423);国家自然科学基金(U0773002)

摘　　要：采用顶空-固相微萃取和色谱质谱联用仪器方法调查严重污染的河流、相关水源中甲硫醚嗅味物质的分布。结果表明,河流中甲硫醚浓度高达2 907 ng/L,受污染的相关水源中甲硫醚浓度达到53 ng/L。单独陶瓷无机膜工艺对DMS去除的效果为20%左右,而臭氧氧化则具有较好的效果,臭氧-陶瓷膜组合工艺对DMS去除率达到50%～90%左右,还能够缩短处理工艺。该项研究对于掌握甲硫醚嗅味物质来源和新型技术的作用具有指导意义。Investigation of heavily polluted rivers was conducted with emphasis on dimethyl sulfide（DMS） contamination using headspace solid-phase micro-extraction（HS-SPME） together with GC-MS.The source water in association with the polluted rivers was also contaminated with source water concentration up to the range from 50 to 90 ng/L.Removing DMS,the notorious odor compound,was important in tap water production especially when the source water was contaminated.Thus ceramic membrane filtration modules were used to purify the water but only 20% DMS was removed.Ceramic membrane filtration combined with ozone-oxidation,however,could significantly upgrade DMS removal from the source water.

关 键 词：水源 嗅味物质 水厂 臭氧氧化 陶瓷膜过滤 

分 类 号：X52[环境科学与工程—环境工程]