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

被引：0
|
作者：
Ya-Nan Yin [1 ]
Jun Hu [1 ]
Jian-Long Wang [1 ,2 ]
机构：
[1] Collaborative Innovation Center for Advanced Nuclear Energy Technology,INET,Tsinghua University
[2] Beijing Key Laboratory of Radioactive Waste Treatment,INET,Tsinghua University
来源：
NuclearScienceandTechniques | 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;
D O I：
暂无
中图分类号：
X703 [废水的处理与利用];
学科分类号：
083002 ;
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 was0.443,0.490 and 1.247 h,respectively,for γ-ray irradiation only,γ-ray irradiation+13 mg/L Oand γ-ray irradiation+30 mg/L O.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 γ-ray irradiation with ozonation is a promising technology for removing toxic pollutants from water and wastewater.
引用
收藏
页码：98 / 102
页数：5
相关论文
共 50 条
  • [1] Degradation kinetics of 2,4-dichlorophenol by gamma ray irradiation in the presence of ozone
    Yin, Ya-Nan
    Hu, Jun
    Wang, Jian-Long
    NUCLEAR SCIENCE AND TECHNIQUES, 2016, 27 (03)
  • [2] Degradation kinetics of 2,4-dichlorophenol by gamma ray irradiation in the presence of ozone
    Ya-Nan Yin
    Jun Hu
    Jian-Long Wang
    Nuclear Science and Techniques, 2016, 27
  • [3] Anaerobic degradation kinetics of acetic acid in the presence of 2,4-dichlorophenol (2,4-DCP)
    Ning, Z
    Fernandes, L
    Kennedy, KJ
    WATER SCIENCE AND TECHNOLOGY, 1998, 38 (8-9) : 333 - 340
  • [4] Anaerobic degradation kinetics of 2,4-dichlorophenol (2,4-DCP) with linear sorption
    Ning, Z
    Kennedy, KJ
    Fernandes, L
    WATER SCIENCE AND TECHNOLOGY, 1997, 35 (2-3) : 67 - 75
  • [5] DEGRADATION OF 2,4-DICHLOROPHENOL IN METHANOGENIC SYSTEMS
    JAIN, V
    BHATTACHARYA, SK
    UBEROI, V
    ENVIRONMENTAL TECHNOLOGY, 1994, 15 (06) : 577 - 584
  • [6] Characterization of 2,4-dichlorophenol degradation pathway
    Chemical & Engineering News, 1991, 69 (01)
  • [7] DISAPPEARANCE KINETICS OF 2,4-DICHLOROPHENOL AND 3,4-DICHLOROPHENOL IN A FLUVIAL SYSTEM
    CAREY, JH
    FOX, ME
    BROWNLEE, BG
    METCALFE, JL
    PLATFORD, RF
    CANADIAN JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY, 1984, 62 (08) : 971 - 975
  • [8] Enhanced mineralization of 2,4-dichlorophenol by ozone in the presence of trace permanganate: effect of pH
    Xiao, Hua
    Xu, Yuxin
    Yu, Man
    Zhang, Qi
    ENVIRONMENTAL TECHNOLOGY, 2010, 31 (11) : 1295 - 1300
  • [9] Degradation of 2,4-dichlorophenol using combined approach based on ultrasound, ozone and catalyst
    Barik, Arati J.
    Gogate, Parag R.
    ULTRASONICS SONOCHEMISTRY, 2017, 36 : 517 - 526
  • [10] Degradation of 2,4-dichlorophenol by immobilized iron catalysts
    Sabhi, S
    Kiwi, J
    WATER RESEARCH, 2001, 35 (08) : 1994 - 2002
12345