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| Degradation of 2,4,6-trichloroanisole by UV/H2O2: kinetics and products |
| LUO Cong-wei1, MA Jun1, JIANG Jin1, GUAN Chao-ting1, PANG Su-yan2, LIU Hong-jun1, ZHAI Xue-dong3, WU Dao-ji4 |
1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;
2. Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province, College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China;
3. School of science and industrial technology, Harbin Institute of Technology, Harbin 150090, China;
4. School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250010, China |
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Abstract The degradation of 2,4,6-trichloroanisole (TCA) in UV/H2O2 process was investigated in the present study. Effects of water matrix (i.e., natural organic matter (NOM), carbonate/bicarbonate (HCO3-/CO32-), chloride ions (Cl-)), TCA concentration, and H2O2 dosage were evaluated. The second order rate constant of TCA react with HO· was determined to be 5.1×109L/(mol×s). The degradation efficiency of TCA was increased with increasing H2O2 dosage. The increase of TCA initial concentration (0.5~200nmol/L) and Cl- concentration (0.5~10mmol/L) had slight negative effects on TCA degradation. The removal of TCA was significantly inhibited in the presence of NOM or HCO3-/CO32-. Further, the main degradation products, including 2,4,6-trichlorophenol, 2,6-dichloro-1,4-benzoquinone and two aromatic ring-opening products, were detected in the reaction of TCA with HO·, and thus a tentative pathway was proposed.
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Received: 04 October 2016
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| [1] |
Antonopoulou M, Evgenidou E, Lambropoulou D, et al. A review on advanced oxidation processes for the removal of taste and odor compounds from aqueous media [J]. Water Research, 2014,53: 215-234.
|
| [2] |
李 勇,陈 超,张晓健,等.东江水中典型致嗅物质的调查 [J]. 中国环境科学, 2008,28(11):974-978.
|
| [3] |
焦 洁,陆纳新,王海湧,等.太湖原水藻类代谢产物中嗅味物质的去除技术研究 [J]. 中国给水排水, 2016,(11):64-67.
|
| [4] |
Qi F, Xu B, Chen Z, et al. Influence of aluminum oxides surface properties on catalyzed ozonation of 2,4,6-trichloroanisole [J]. Separation and Purification Technology, 2009,66(2):405-410.
|
| [5] |
Karlsson S, Kaugare S, Grimvall A, et al. Formation of 2,4,6-trichlorophenol and 2,4,6-trichloroanisole during treatment and distribution of drinking water [J]. Water Science and Technology, 1995,31(11):99.
|
| [6] |
Qi F, Xu B, Chen Z, et al. Ozonation catalyzed by the raw bauxite for the degradation of 2,4,6-trichloroanisole in drinking water [J]. Journal of Hazardous Materials, 2009,168(1):246-252.
|
| [7] |
Lee Y, Gerrity D, Lee M, et al. Organic Contaminant Abatement in Reclaimed Water by UV/H2O2 and a Combined Process Consisting of O3/H2O2 Followed by UV/H2O2: Prediction of Abatement Efficiency, Energy Consumption, and Byproduct Formation [J]. Environmental Science & Technology, 2016,50(7): 3809-3819.
|
| [8] |
Chu W, Gao N, Yin D, et al. Impact of UV/H2O2 Pre-Oxidation on the Formation of Haloacetamides and Other Nitrogenous Disinfection Byproducts during Chlorination [J]. Environmental Science & Technology, 2014,48(20):12190-12198.
|
| [9] |
唐建军,陈益清,李文龙.TiO2及负载Fe(Ⅲ)可见光催化H2O2降解扑草净的协同效应 [J]. 中国环境科学, 2015,35(3):777-782.
|
| [10] |
李青松,高乃云,马晓雁,等. UV/H2O2工艺降解水中17α-乙炔基雌二醇 [J]. 中国环境科学, 2006,26 (5):515-518.
|
| [11] |
徐 涛,肖贤明,刘红英. UV/H2O2光化降解水中邻二氯苯的反应机理 [J]. 中国环境科学, 2004,24(5):547-551.
|
| [12] |
Xiao Y, Zhang L, Yue J, et al. Kinetic modeling and energy efficiency of UV/H2O2 treatment of iodinated trihalomethanes [J]. Water Research, 2015,75:259-269.
|
| [13] |
Pereira V J, Weinberg H S, Linden K G, et al. UV Degradation Kinetics and Modeling of Pharmaceutical Compounds in Laboratory Grade and Surface Water via Direct and Indirect Photolysis at 254nm [J]. Environmental Science & Technology, 2007,41(5):1682-1688.
|
| [14] |
Rosenfeldt E J, Melcher B, Linden K G. UV and UV/H2O2 treatment of methylisoborneol (MIB) and geosmin in water [J]. Journal of Water Supply: Research and Technology-Aqua, 2005, 54(7):423.
|
| [15] |
Jo C H, Dietrich A M, Tanko J M. Simultaneous degradation of disinfection byproducts and earthy-musty odorants by the UV/H2O2 advanced oxidation process [J]. Water Research, 2011, 45(8):2507-2516.
|
| [16] |
谢鹏超.紫外/过硫酸盐氧化除嗅并控制消毒副产物生成的效能研究 [D]. 哈尔滨:哈尔滨工业大学, 2015.
|
| [17] |
陈海涵.UV/H2O2氧化土臭素和二甲基异冰片的试验研究 [D]. 济南:山东建筑大学, 2016.
|
| [18] |
Luo C W, Jiang J, Ma J, et al. Oxidation of the odorous compound 2,4,6-trichloroanisole by UV activated persulfate: Kinetics, products, and pathways [J]. Water Research, 2016,96:12-21.
|
| [19] |
Jiang J, Gao Y, Pang S Y, et al. Oxidation of Bromophenols and Formation of Brominated Polymeric Products of Concern during Water Treatment with Potassium Permanganate [J]. Environmental Science & Technology, 2014,48(18):10850-10858.
|
| [20] |
Zhang X, Minear R A, Barrett S E. Characterization of High Molecular Weight Disinfection Byproducts from Chlorination of Humic Substances with/without Coagulation Pretreatment Using UF-SEC-ESI-MS/MS [J]. Environmental Science & Technology, 2005,39(4):963-972.
|
| [21] |
Bader H, Sturzenegger V, Hoigné J. Photometric method for the determination of low concentrations of hydrogen peroxide by the peroxidase catalyzed oxidation of N, N-diethyl-p-phenylenediamine (DPD) [J]. Water Research, 1988,22(9):1109-1115.
|
| [22] |
张彭义,余 刚,蒋展鹏.苯甲酸类光催化降解和羟基自由基反应的关系 [J]. 中国环境科学, 1999,19(3):193-196.
|
| [23] |
Peter A, Von Gunten U. Oxidation Kinetics of Selected Taste and Odor Compounds During Ozonation of Drinking Water [J]. Environmental Science & Technology, 2007,41(2):626-631.
|
| [24] |
Luo C W, Ma J, Jiang J, et al. Simulation and comparative study on the oxidation kinetics of atrazine by UV/H2O2, UV/HSO5- and UV/S2O82- [J]. Water Research, 2015,80:99-108.
|
| [25] |
邓 靖,邵益生,高乃云,等.UV/H2O2工艺对水中典型药物卡马西平的光化学降解研究 [J]. 中南大学学报(自然科学版), 2013, (9):3933-3939.
|
| [26] |
Kim I, Yamashita N, Tanaka H. Photodegradation of pharmaceuticals and personal care products during UV and UV/H2O2 treatments [J]. Chemosphere, 2009,77(4):518-525.
|
| [27] |
Lutze H V, Bircher S, Rapp I, et al. Degradation of Chlorotriazine Pesticides by Sulfate Radicals and the Influence of Organic Matter [J]. Environmental Science & Technology, 2015,49(3): 1673-1680.
|
| [28] |
Sun P, Lee W, Zhang R, et al. Degradation of DEET and Caffeine under UV/Chlorine and Simulated Sunlight/Chlorine Conditions [J]. Environmental Science & Technology, 2016,50(24):13265-13273.
|
| [29] |
Benitez F J, Beltran-Heredia J, Acero J L, et al. Chemical Decomposition of 2,4,6-Trichlorophenol by Ozone, Fenton's Reagent, and UV Radiation [J]. Industrial & Engineering Chemistry Research, 1999,38(4):1341-1349.
|
|
|
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