结晶膜蒸馏处理吸收炼矿烟气酸性废水的研究  

Research on Treatment of Acidic Waste Water of the Flue Gas Absorbed by Crystal Membrane Distillation

作　　者：王鹤[1] 李滦宁[2] 张凤君[1] 张孝生[3] 王顺义[1] 沙娜[1] 戴宁[1] 

机构地区：[1]吉林大学环境与资源学院,长春130026 [2]吉林大学化学学院,长春130026 [3]长春市环保局,长春130023

出　　处：《吉林大学学报（地球科学版）》2006年第S1期144-146,共3页Journal of Jilin University：Earth Science Edition

基　　金：吉林省科技厅资助项目(20040577);吉林省环保局项目(2004-11)

摘　　要：采用天然碳酸钙中和烟气吸收酸性废水,研究中空纤维结晶膜蒸馏技术对中和后废水处理的效果。考察了料液温度、起始浓度、流速、pH值等因素对膜通量的影响。在选定的条件下对水样进行连续膜蒸馏处理。结果表明,在料液温度50℃,料液速度为18.5mL/min,pH值为7,运行18h后,浓缩溶液开始出现结晶,结晶效果较好。截留率均接近100%。The treatment effect of acidic waste water of the flue gas absorbed,neutralized by crude calcium carbonate,was studied by crystal membrane distillation.Effect of some factors,such as the temperature,the original concentration,the velocity of flow and the pH of feed solution,on the process of the membrane distillation and crystallization was observed.The results showed that CaCl_(2) crystal in the concentrated feed solution began to appear after 18 hours running in the condition of the temperature 50℃,the ve...

关 键 词：中空纤维膜 膜蒸馏 膜通量 酸性废水 

分 类 号：X703[环境科学与工程—环境工程]