摘要
高氟地下水在我国分布广泛,直接作饮用水对当地居民健康产生很大危害.为了开发出经济高效的PRB介质,研究了沸石、骨炭、黏土矿物(海泡石、蒙脱石、高岭土、硅藻土等)、活性氧化铝、石灰石、分子筛、PAM、树脂等介质材料的特点,分析了PRB用于高氟地下水修复的技术关键———PRB介质选择.结果表明:活性氧化铝结构及出水氟含量稳定、吸附容量较大;改性沸石结构及除氟性能稳定、出水水质好、再生容易、原料价廉易得,其在PRB修复高氟地下水中具有广泛的应用前景.
The high-fluorine groundwater distributes widely in China.As drinking water,it has a great hazard to the health of local residents.In order to develop economic and efficient PRB media,the characteristics of zeolite,bone char,clay minerals（sepiolite,montmorillonite,kaolin,diatomaceous earth,etc.）,activated alumina,limestone,molecular sieve,PAM,resin and other media were studied.Then the key technology of PRB used in repairing high-fluorine groundwater was analyzed,namely,PRB media selection.The results showed that structure of activated alumina and fluoride content of flow were stable and its adsorption capacity was relatively big.The results also manifested that the structure of modified zeolite and its performance of fluoride removal were stable,the effluent quality was good,recycling was easy and raw materials were readily available and cheap.So activated alumina and modified zeolite had extensive prospect in the application of PRB to repairing high-fluoride groundwater.
出处
《华北水利水电学院学报》
2011年第5期138-141,共4页
North China Institute of Water Conservancy and Hydroelectric Power
基金
国家水体污染控制与治理科技重大专项项目:南水北调中线总干渠水质安全保障关键技术与工程示范课题(2009ZX07212-003)
关键词
氟
PRB
地下水
活性氧化铝
沸石
fluoride
PRB
groundwater
activated alumina
zeolite
