液/液膜吸收法处理氨氮废水过程中渗透蒸馏的抑制  

INHIBITION OF OSMOSIS DISTILLATION BY LIQUID / LIQUID MEMBRANE ABSORPTION FOR THE TREATMENT OF AMMONIA WASTEWATER

作　　者：李玲[1] 王冠平[2] 施汉昌[2] 

机构地区：[1]新疆大学化学化工学院,新疆乌鲁木齐830008 [2]清华大学环境模拟与污染控制国家重点联合实验室,北京100084

出　　处：《水处理技术》2005年第2期17-20,共4页Technology of Water Treatment

基　　金：清华大学"985"一期重点项目

摘　　要：对用液/液膜吸收法处理水中氨氮过程中,伴生的水渗透蒸馏的抑制方法进行了研究。结果表明:料液中氨氮浓度高,其水的渗透蒸馏通量小;料液中含有一定的盐分,可抑制水的渗透蒸馏;适当降低料液温度,提高吸收液温度,对抑制料液水的渗透蒸馏有一定作用,其过程对传质系数影响不大。液/液膜吸收法处理含有一定盐分的,具有高浓度氨氮的废水,是可行的,具有广泛的工业应用价值。The inhibiting method of osmosis distillation accompanied in the course of treating ammonia wastewter by liquid/liquid membrane absorption was studied. The results showed that the higher the ammonia concentration in feed, the smaller the flux of osmosis distillation; the feed containing a certain salts can inhibt the water osmosis distillation; properly lowering temperature of feed and heightening the temperature of absorption liquid have a certain inhibiting against osmosis distillation of feed; the process has no obvious influence on mass transfer coefficient. The treatment of high strength ammonia wastewater with a certain salinity by liquid/liquid membrane adsorption is feasible and has wide value of industrial application.

关 键 词：液/液膜吸收法 聚丙烯中空纤维膜 渗透 蒸馏 氨废水 氮废水 废水处理 

分 类 号：X78[环境科学与工程—环境工程]