活性炭对水中溴酸盐吸附性能研究  

STUDY ON ADSORPTION OF BROMATE FROM WATER BY GRANULAR ACTIVATED CARBON

作　　者：张永清[1,2] 吴清平[1] 张菊梅[1] 杨秀华[1] 

机构地区：[1]广东省微生物研究所,广东省菌种保藏与应用重点实验室,广东省微生物应用新技术公共实验室,省部共建华南应用微生物国家重点实验室,广东广州510070 [2]许昌学院食品与生物工程学院,河南许昌461000

出　　处：《水处理技术》2014年第6期36-38,42,共4页Technology of Water Treatment

基　　金：国家科技型中小企业技术创新基金(11C26244405503)

摘　　要：为控制水中消毒副产物溴酸盐,对添加溴酸盐的水进行静态吸附实验,研究活性炭（GAC）对溴酸盐的吸附性能。结果表明,2种GAC对溴酸盐的吸附规律符合Freundlich吸附等温线。25℃条件下,对于GAC1,当水中初始BrO3-的质量浓度〉50μg/L时,0.25 h达到吸附平衡,溴酸盐去除率在88.72%-97.87%;当初始BrO3-的质量浓度〈50μg/L时,24 h达到吸附平衡,溴酸盐去除率在22.54%-97.97%。对于GAC2,1 h左右基本达到吸附平衡,溴酸盐去除率在48.41%-71.78%。To control the bromate, static adsorption testing was employed by the water added with various concentrations bromate to estimate the bromate adsorption by granular activated carbon. It was found that the bromate adsorption of both GACs conformed to the Freundlich model of adsorption isotherms.The time for adsorption equilibrium for GAC1 at 25 ℃ was 0.25 h when the initial mass concentration of BrO3-were 50 μg/L, and the bromate reduction rates were between 88.72%~97.87%. When the initial mass concentration of BrO3-were 50 μg/L, the time and the reduction rates were respectively24 h and 22.54%~97.97% for GAC1. The adsorption equilibrium for GAC2 at 25 ℃ was basically attained in 1h and the removal rates of bromate were between 48.41%-71.78%.

关 键 词：溴酸盐 饮用水 活性炭 吸附等温线 去除率 

分 类 号：TQ424[化学工程] TU991.27[建筑科学—市政工程]