文献类型：期刊文献

中文题名：水处理活性炭吸附性能指标的表征与应用

英文题名：Adsorptive capacity indicator based method of carbon selection for treatability

作者：张巍[1] 应维琪[1] 常启刚[1] 蒋文新[1] 戴伟娣[2] 蒋剑春[2]

第一作者：张巍

机构：[1]华东理工大学资源与环境工程学院;[2]中国林业科学研究院林产化学工业研究所

年份：2007

卷号：27

期号：3

起止页码：289-294

中文期刊名：中国环境科学

外文期刊名：China Environmental Science

收录：CSTPCD;;EI(收录号：20072910702961);Scopus(收录号：2-s2.0-34447323598);北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：华东理工大学科学基金资助项目(XD20B01403)

语种：中文

中文关键词：活性炭选型;吸附容量;碘值;甲基蓝值;苯酚值;丹宁酸值

外文关键词：carbon selection; adsorptive capacity; iodine number; methylene blue number; phenol number; tannic acid number

分类号：X703

摘要：使用碘值、苯酚值、甲基蓝值和丹宁酸值4种吸附容量性能指标组成水处理活性炭选型技术.经BET测试验证,碘值可以体现活性炭中孔径略大于1.0nm微孔的发达程度,表征比表面积大小;甲基蓝值则代表孔径大于1.5nm的微孔和中孔发达程度;而丹宁酸值代表直径大于2.8nm左右的中孔数量;苯酚值体现活性炭表面化学信息,可表征活性炭对于小分子芳环类和极性有机物的吸附能力.硝基苯、甲基叔丁基醚(MTBE)、双酚A(BPA)、腐殖酸以及焦化厂二级生化出水的吸附实验结果均验证了该技术作为水处理活性炭实用选型方法的有效性.
The carbon selection method employing a set of four adsorptive capacity indicators was presented. The results of BET measurements of specific surface area and pore volume for many activated carbon samples suggested that those indicators were excellent indicators of the carbon＇s pore structure. The activated carbon samples with a high iodine number had a large specific surface area and plenty of small micropores （pore diameter 〉1.0nm）. The methylene blue number was well correlated with larger micropores of 〉1.5nm in diameter and that the tannic acid number with mesopores of 〉2.8nm. The phenol number of a carbon was a good indicator of its surface acidity due to oxygen containing organic functional groups. The activated carbon samples with a high phenol number exhibited a high capacity for small size aromatic and/or oxyenated polar organic compounds. This simple and effective method of carbon selection was successfully employed in the bench adsorption treatment for removing nitrobenzene, MTBE, BPA, humic acid from the feed streams as well as the organic constituents of a biotreated coking plant effluent.