[1]杜萌,张敏,李宗超,等.大孔吸附树脂去除饮用水中酚类环境激素的效能[J].中国给水排水,2021,37(7):49-57.
　DU Meng,ZHANG Min,LI Zong-chao,et al.Effectiveness of Macroporous Adsorption Resin for the Removal of Phenolic Environmental Hormones in Drinking Water[J].China Water & Wastewater,2021,37(7):49-57.
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大孔吸附树脂去除饮用水中酚类环境激素的效能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第7期 页码: 49-57 栏目: 出版日期: 2021-04-01
Title:
Effectiveness of Macroporous Adsorption Resin for the Removal of Phenolic Environmental Hormones in Drinking Water
作者:
杜萌1,张敏2,李宗超2,王文丽2,刘庆伟2
(1.北京市自来水集团有限责任公司水质监测中心，北京100012;2.临沂大学药学院，山东临沂276000)
Author(s):
DU Meng1,ZHANG Min2,LI Zong-chao2,WANG Wen-li2,LIU Qing-wei2
(1. Water Quality Monitoring Center, Beijing Waterworks Group Co. Ltd., Beijing 100012, China; 2. School of Pharmacy, Linyi University, Linyi 276000, China)
关键词:
大孔吸附树脂; 酚类化合物; 环境激素; 吸附性能
Keywords:
macroporous adsorption resin; phenolic compound; environmental hormone; adsorption property
摘要:
为研究大孔吸附树脂对饮用水中酚类环境激素的去除作用，以间甲酚、2,4-二氯苯酚和2,4,6-三氯苯酚为研究对象，以吸附容量为评价指标，筛选出吸附效果最佳的LX-T28型大孔吸附树脂。利用动力学模型研究了3种酚类环境激素在LX-T28上的吸附性能，吸附动力学结果表明，3种酚类环境激素在LX-T28上的吸附过程属于快速吸附类型，准二级动力学模型可较好地拟合试验数据。该研究对影响大孔吸附树脂去除酚类环境激素的各项参数进行了优化，确定的最佳工艺条件为：酚类化合物浓度为5 μg/mL的模拟水样300 BV（树脂床体积）在pH=7.24和温度35 ℃时，以6 BV/h流速吸附，9 BV的95%乙醇以4 BV/h的流速解吸附，此时模拟水样中间甲酚、2,4-二氯苯酚和2,4,6-三氯苯酚的去除率分别为76.9%、88.1%和89.7%。
Abstract:
The effectiveness of macroporous adsorption resin for the removal of phenolic environmental hormones in drinking water was investigated. Three environmental hormones, namely m-cresol, 2,4-dichlorophenol and 2,4,6-trichlorophenol were chosen as the adsorbates, and the LX-T28 macroporous resin with the largest adsorption capacity was selected. Adsorption properties of three phenolic environmental hormones on LX-T28 were systematically explored by kinetic models. The results of adsorption kinetics indicated that the adsorption process of three phenolic environmental hormones on LX-T28 belonged to the quick adsorption type, and pseudo-second-order kinetic model could fit the experimental data well. The parameters which affected the removal efficiency of phenolic environmental hormones were optimized, and the optimum process conditions were obtained as follows: sample volume of 300 BV ( bed volume) with phenolic compounds concentration of 5 μg/mL, pH of 7.24, temperature of 35 ℃, flow velocity of 6 BV/h, and 95% ethanol volume of 9 BV with desorption flow velocity of 4 BV/h. Under the optimal conditions, the removal efficiencies of m-cresol, 2,4-dichlorophenol and 2,4,6-trichlorophenol were 76.9%, 88.1% and 89.7%, respectively.
更新日期/Last Update: 2021-04-01