Degradation kinetics of 2,4-dichlorophenol by gamma ray irradiation in the presence of ozone

被引：5
作者：
Yin, Ya-Nan [1 ]
Hu, Jun [1 ]
Wang, Jian-Long [1 ,2 ]
机构：
[1] Tsinghua Univ, Collaborat Innovat Ctr Adv Nucl Energy Technol, INET, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, INET, Beijing 100084, Peoples R China
来源：
NUCLEAR SCIENCE AND TECHNIQUES | 2016年 / 27卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Advanced oxidation processes; Radiolytic degradation; Chlorophenol; Decholorination; Ozonation; AQUEOUS-SOLUTION; RADIATION; WATER; 4-CHLOROPHENOL; CHLOROPHENOLS; DECOMPOSITION; REMOVAL; ACID;
D O I：
10.1007/s41365-016-0074-x
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Gamma ray-induced degradation of 2,4-dichlorophenol (DCP) in the presence of ozone has been investigated. The results show that ozone can remarkably increase the degradation rate of 2,4-DCP in aqueous solution. The degradation kinetics of 2,4-DCP can be described by the first-order reaction model, and the rate constant was 0.443, 0.490 and 1.247 h(-1), respectively, for gamma-ray irradiation only, gamma- ray irradiation + 13 mg/L O-3 and gamma- ray irradiation + 30 mg/L O-3. High-performance liquid chromatography analysis shows that the dechlorinated products are 4-chlorophenol, 2-chlorophenol and phenol; and the oxidation products are hydroquinone, benzoquinone, maleic, fumaric, acrylic, malonic, oxalic, acetic and formic acids. The possible pathways for 2,4-DCP degradation involving all these oxidation products are tentatively proposed. Combining gamma-ray irradiation with ozonation is a promising technology for removing toxic pollutants from water and wastewater.
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页数：5
相关论文
共 24 条
[1]   Comparison of reductive dechlorination of p-chlorophenol using Fe0 and nanosized Fe0 [J].
Cheng, Rong ;
Wang, Jian-long ;
Zhang, Wei-xian .
JOURNAL OF HAZARDOUS MATERIALS, 2007, 144 (1-2) :334-339
[2]   Degradation of 3-chloro-4-hydroxybenzoic acid in biological treated effluent by gamma irradiation [J].
Chu, Libing ;
Wang, Jianlong .
RADIATION PHYSICS AND CHEMISTRY, 2016, 119 :194-199
[3]   Decomposition of 2,4-dichlorophenoxyacetic acid by ozonation, ionizing radiation as well as ozonation combined with ionizing radiation [J].
Drzewicz, P ;
Trojanowicz, M ;
Zona, R ;
Solar, S ;
Gehringer, P .
RADIATION PHYSICS AND CHEMISTRY, 2004, 69 (04) :281-287
[4]   Comparison of radiation and photoinduced degradation of pollutants in water:: synergistic effect Of O2, O3 and TiO2.: A short review [J].
Getoff, N .
RESEARCH ON CHEMICAL INTERMEDIATES, 2001, 27 (4-5) :343-358
[5]   Removal of diclofenac from surface water by electron beam irradiation combined with a biological aerated filter [J].
He, Shijun ;
Wang, Jianlong ;
Ye, Longfei ;
Zhang, Youxue ;
Yu, Jiang .
RADIATION PHYSICS AND CHEMISTRY, 2014, 105 :104-108
[6]   Degradation of chlorophenols in aqueous solution by γ-radiation [J].
Hu, Jun ;
Wang, Jianlong .
RADIATION PHYSICS AND CHEMISTRY, 2007, 76 (8-9) :1489-1492
[7]   Degradation of 4-chlorophenol in aqueous solution by γ-radiation and ozone oxidation [J].
Hu Jun ;
Wang Jianlong ;
Chen Rong .
SCIENCE IN CHINA SERIES B-CHEMISTRY, 2006, 49 (02) :186-192
[8]  
Jia W. B., 2013, J RAD RES RAD PROCES, V1
[9]  
Jia W. B., 2014, J RAD RES RAD PROCES, V5, DOI [10.11889/j.1000-3456.2014.rrj.32.050301, DOI 10.11889/J.1000-3456.2014.RRJ.32.050301.(IN]
[10]   Radiation-induced degradation of cyclohexanebutyric acid in aqueous solutions by gamma ray irradiation [J].
Jia, Wenbao ;
He, Yanquan ;
Ling, Yongsheng ;
Hei, Daqian ;
Shan, Qing ;
Zhang, Yan ;
Li, Jiatong .
RADIATION PHYSICS AND CHEMISTRY, 2015, 109 :17-22
123