文献类型：期刊文献

中文题名：颗粒活性炭吸附去除水中三氯乙烯的研究

英文题名：Granular carbon adsorption technology for removal of trichloroethylene

作者：黄流雅[1];胡娟[1];张巍[1];杨植东[1];林匡飞[1];应维琪[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2009

卷号：31

期号：9

起止页码：34

中文期刊名：环境污染与防治

外文期刊名：Environmental Pollution & Control

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家"863计划"项目(No.2007AA06Z331);上海市重点学科建设项目(No.B506)

语种：中文

中文关键词：三氯乙烯;活性炭;吸附容量;穿透实验;MCRB

外文关键词：trichloroethylene （TCE）; activated carbon; adsorptive capacity; breakthrough experiment; micro column rapid breakthrough （MCRB）

摘要：通过吸附容量实验及微型快速穿透(MCRB)实验,考察了7种活性炭对水样中三氯乙烯(TCE)的去除效果。结果表明,表征活性炭对小分子化合物吸附容量的苯酚值可以预测各种活性炭对TCE的吸附容量;国内常用炭型对TCE的吸附性能与国际常用炭型相当,性价比更高;不同TCE初始浓度及低浓度甲醇对TCE吸附容量没有明显的影响,而自来水中天然有机物(NOM)的竞争吸附作用会降低活性炭对TCE的吸附容量;MCRB实验数据提供了较为准确的TCE平衡吸附容量,验证了各种活性炭对TCE的相对吸附容量,并显示使用2个串联活性炭炭床可以提高吸附容量利用率,节省处理费用,确保出水达标。
Series of batch adsorption equilibrium capacity experiments and continuous flow breakthrough experiments, employing the efficient micro column rapid breakthrough （MCRB） method, were conducted to rank 7 GACs in removing TCE and to devise the most cost effective GAC treatment process. The TCE absorb capacities of carbons could be represented by their phenol numbers （a small adsorbate capacity indicator） ; the coconut GACs with rich mi- cro pore exhibited higher capacities than others. The initial TCE concentration and presence of methanol （〈0.1%） did not affect the TCE adsorptive capacity, which was notably reduced by the naturally occurring organic compounds present in tap water. The equilibrium adsorptive capacities were better estimate by MCRB procedure results, the data confirmed the relative adsorptive capacities of carbons for TCE and showed that two serial adsorbers treatment as the most cost effective process scheme to produce a high quality effluent.