水资源与水工程学报2011，Vol.22Issue(2)：20-24,5.
改性活性炭对饮用水中铬酸盐的去除特性研究
Study on chromate temoval properties by modified activated carbon in drinking water
摘要
Abstract
This paper investigated the effect of cationic polymers ( CTAC, MTAB and DTAB) on granular activated carbon (GAG) and Cr(VI) removal by these modified carbons. The purpose was to develop an adsorbent that could effectively remove Cr(VI) . Adsorption balance tests were conducted to compare the adsorption capacities of virgin GAG and GAGs modified to three cationic polymers. The results showed that cationic polymer modification was able to greatly improve carbon＇s adsorption for Cr (VI). In addition, CTAC modified GAG manifested higher capacities than MTAB and DTAB. The langmiur adsorption balance model and pseudo-second-order kinetics models were found to describe well the Cr(VI) adsorption behavior on activated carbon. Also, the stability of polymer on carbon was another important issue.Results indicated that polymer attached strongly to carbon surface and less than 3％ of the polymer desorbed during Cr(VI) adsorption.关键词
阳离子聚合物/活性炭/铬酸盐/饮用水Key words
cationic polymer/ activated carbon/ chromate/ drinking water分类
资源环境引用本文复制引用
顾雪琼,陈维芳..改性活性炭对饮用水中铬酸盐的去除特性研究[J].水资源与水工程学报,2011,22(2):20-24,5.基金项目
上海市科学技术委员会浦江人才计划(10PJ1407900) （10PJ1407900）
上海教委科研创新项目(11YZ115) （11YZ115）
