煤渣吸附水中氟和砷的研究  

Study on adsorption of fluorine and arsenic in water by coal cinder

作　　者：李娟[1] 刘新春[1] 余志晟[1] 易鑫[1] 琚宜文[2] 

机构地区：[1]中国科学院大学资源与环境学院,北京100049 [2]中国科学院大学地球科学学院,北京100049

出　　处：《中国科学院大学学报（中英文）》2014年第4期471-476,共6页Journal of University of Chinese Academy of Sciences

基　　金：国家科技重大专项(2011ZX05060-005)资助

摘　　要：采用煤渣静态吸附水中氟和砷.考察煤渣投加量、震荡时间、进水浓度和pH值对煤渣吸附性能的影响.实验结果表明,每100 mL污水较为合适的煤渣用量为6 g;煤渣对氟和砷的最佳吸附时间为3 h;对高氟水的吸附效果较好,对低氟水的去除效果相对较差;对高浓度及低浓度的砷均具有较好的吸附效果,去除率均达到95%以上;pH值对氟和砷的吸附影响不大.The adsorption characteristics of coal cinder to fluorine and arsenic were studied with static adsorption experiments, and the influences of oscillation time, sorbent dosage, initial concentration,and pH on the adsorption characteristics were investigated. The results show that in the optimal processes sorbent dosage is 6 g and adsorption time is 3 h. Adsorption of fluorine by coal cinder is more effective at higher concentration of fluorine than at lower concentration. However,adsorption rates of arsenic are always more than 95%,whatever the initial concentrations. The acidity has little influence on the adsorption characteristics of fluorine and arsenic.

关 键 词：煤渣 氟 砷 

分 类 号：X52[环境科学与工程—环境工程] TE992.2[石油与天然气工程—石油机械设备]