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浙江大学学报(理学版)  2020, Vol. 47 Issue (1): 107-114    DOI: 10.3785/j.issn.1008-9497.2020.01.016
环境科学     
饮用水中三氯甲烷与其他氯消毒副产物在活性炭上的吸附竞争研究
张平, 杨岳平, 赵丹, 武云霞, 陈莎莎
浙江大学 环境与资源学院,浙江 杭州 310058
Enantioseparation of Betti bases on chiral stationary phase by HPLC
ZHANG Ping, YANG Yueping, ZHAO Dan, WU Yunxia, CHEN Shasha
College of Environmental&Resource Science,Zhejiang University,Hangzhou 310058,China
 全文: PDF(993 KB)   HTML  
摘要: 通过等温吸附实验,探究了三氯甲烷(CHCl3)与二氯一溴甲烷(CHBrCl2)、二氯乙酸(Cl2CHCOOH)在活性炭上的竞争吸附关系,同时探究了在低浓度条件下CHBrCl2和Cl2CHCOOH浓度变化对活性炭吸附CHCl3的影响。实验结果表明,活性炭吸附CHCl3和CHBrCl2符合Freundlich模型,对Cl2CHCOOH的吸附符合Langmuir模型;活性炭对3种消毒副产物均为优先吸附,吸附能力由大到小依次为CHBrCl2、CHCl3、Cl2CHCOOH;低浓度条件下,活性炭对消毒副产物的吸附效果随体系中物质种类的增加而降低;低浓度条件下,Cl2CHCOOH的浓度变化对CHCl3的吸附效果影响不大,但吸附效果随水体中CHBrCl2浓度的升高而降低。
关键词: 活性炭饮用水三氯甲烷二氯一溴甲烷二氯乙酸竞争吸附    
Abstract: Through isothermal adsorption test, the competitive adsorption relationship between trichloromethane(CHCl3), bromodichloromethane(CHBrCl2) and Dichloroacetic acid(Cl2CHCOOH) on activated carbon was explored. The effects of the adsorption of CHCl3 by activated carbon under different concentrations of CHBrCl2 and Cl2CHCOOH were also investigated. The experimental results show that the adsorption of CHCl3 and CHBrCl2 by activated carbon conforms to the Freundlich model, and the adsorption of Cl2CHCOOH conforms to the Langmuir model. The adsorption of three disinfection by-products by activated carbon was preferential and the capacity of adsorbing CHBrCl2, CHCl3 and Cl2CHCOOH was ranged from large to small. Adsorption of disinfection by-products by activated carbon at low concentration will decrease with the increase of substances in the system. The concentration of Cl2CHCOOH has little effect on the adsorption of CHCl3 at low concentration. The adsorption of CHCl3 decreases with the increase of the concentration of CHBrCl2 in the water.
Key words: activated carbon    drinking water    CHCl3    CHBrCl2    Cl2CHCOOH    competitive adsorption
收稿日期: 2018-10-22 出版日期: 2020-01-25
CLC:  X52  
通讯作者: ORCID: http://orcid.org/0000-0002-9813-3594,E-mail:yyuep@zju.edu.cn.   
作者简介: 张平(1993—),ORCID:http://orcid.org/0000-0003-0003-3745,男,硕士研究生,主要从事饮用水安全研究.
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引用本文:

张平, 杨岳平, 赵丹, 武云霞, 陈莎莎. 饮用水中三氯甲烷与其他氯消毒副产物在活性炭上的吸附竞争研究[J]. 浙江大学学报(理学版), 2020, 47(1): 107-114.

ZHANG Ping, YANG Yueping, ZHAO Dan, WU Yunxia, CHEN Shasha. Enantioseparation of Betti bases on chiral stationary phase by HPLC. Journal of Zhejiang University (Science Edition), 2020, 47(1): 107-114.

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https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2020.01.016        https://www.zjujournals.com/sci/CN/Y2020/V47/I1/107

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