|
|
|
| Copper oxide-catalyzed reduction of N-nitrosodimethylamine with zero-valent iron in water |
| HAN Ying1, WANG Ji-he1, LI Jun2, LI Wei-wei1, JIANG Bei-bei1, YAO Jie1 |
1. College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, China;
2. College of Environment, Zhejiang University of Technology, Hangzhou 310014, China |
|
|
|
|
Abstract To remove the environmental pollution of N-nitrosodimethylamine (NDMA), copper oxide (CuO) was utilized to catalyze the NDMA reduction with zero-valent iron. The reaction efficiency, the influences of the CuO dosage, pH value, dissolved oxygen concentration and rotation speed were investigated. The products were analyzed and the kinetic laws and reaction mechanism were also discussed. The results indicated that CuO could effectively catalyze the reduction of NDMA with zero-valent iron. The removal efficiency could be greater than 99% after 18h. The reaction proceeded faster with higher dosage of CuO and lower pH value. Oxygen-enriched state inhibited the reduction of NDMA. The reaction will be affected when the reactor speed was too fast or too slow.1,1-dimethylhydrazine (UDMH) and dimethylamine (DMA) formed with the degradation of NDMA. Catalytic hydrogenation was proposed as the mechanism.
|
|
Received: 03 January 2017
|
|
|
|
|
|
| [1] |
吕娟,沈静,曹先仲,等.药物对A/A/O系统中NDMA及其总前体物去除的影响[J]. 中国环境科学, 2015,35(5):1335-1342.
|
| [2] |
杨娟,李咏梅.纳米零价铁去除水中微量N-亚硝基二甲胺的研究[J]. 中国环境科学, 2014,34(7):1696-1702.
|
| [3] |
Mitch W A, Sharp J O, Trussell R R, et al. N-Nitrosodimethylamine (NDMA) as a drinking water contaminant:a review[J]. Environmental Engineering Science, 2003,20(5):389-404.
|
| [4] |
Planas C, Palacios O, Ventura F, et al. Analysis of nitrosamines in water by automated SPE and isotope dilution GC/HRMS-Occurrence in the different steps of a drinking water treatment plant, and in chlorinated samples from a reservoir and a sewage treatment plant effluent[J]. Talanta, 2008,76(4):906-913.
|
| [5] |
Bei E, Shu Y, Li S, et al. Occurrence of nitrosamines and their precursors in drinking water systems around mainland China[J]. Water Research, 2016,98:168-175.
|
| [6] |
Asami M, Oya M, Kosaka K. A nationwide survey of NDMA in raw and drinking water in Japan[J]. Science of the Total Environment, 2009,407(11):3540-3545.
|
| [7] |
Krauss M, Longrée P, Dorusch F, et al. Occurrence and removal of N-nitrosamines in wastewater treatment plants[J]. Water Research, 2009,43(17):4381-4391.
|
| [8] |
Ma F, Wan Y, Yuan G, et al. Occurrence and source of nitrosamines and secondary amines in groundwater and its adjacent Jialu river basin, China[J]. Environmental Science & Technology, 2012,46(6):3236-3243.
|
| [9] |
Wang W, Hu J,Yu J, et al. Determination of NDMA in drinking water by UPLC-MS/MS[J]. Journal of Environmental Sciences, 2010,22(10):1508-1512.
|
| [10] |
Luo Q, Wang D, Wang Z. Occurrences of nitrosamines in chlorinated and chloraminated drinking water in three representative cities, China[J]. Science of the Total Environment, 2012,437(20):219-225.
|
| [11] |
王文成,吴德礼,马鲁铭,等.零价金属还原降解水中污染物的应用研究综述[J]. 四川环境, 2007,26(3):99-103.
|
| [12] |
Gui L, Gillham R W, Odziemkowski M S. Reduction of N-Nitrosodimethylamine with granular iron and nickel-enhanced iron. 1. pathways and kinetics[J]. Environmental Science & Technology, 2000,34(16):3489-3494.
|
| [13] |
Li B, Qu J, Liu H, et al. Effects of copper(Ⅱ) and copper oxides on THMs formation in copper pipe[J]. Chemosphere, 2007, 68(11):2153-2160.
|
| [14] |
Zhang H, Andrews S A. Factors affecting catalysis of copper corrosion products in NDMA formation from DMA in simulated premise plumbing[J]. Chemosphere, 2013,93(11):2683-2689.
|
| [15] |
陈忠林,徐冰冰,齐虹,等.高效液相色谱测定水中痕量亚硝基二甲胺[J]. 中国给水排水, 2007,23(8):84-87.
|
| [16] |
韩莹,陈忠林,沈吉敏,等.高效液相色谱法测定水中痕量偏二甲肼[J]. 哈尔滨工业大学学报, 2013,45(8):34-38.
|
| [17] |
Han Y, Chen Z, Shen J, et al. The role of Cu(Ⅱ) in the reduction of N-nitrosodimethylamine with iron and zinc[J]. Chemosphere, 2017,167:171-177.
|
| [18] |
Bransfield S J, Cwiertny D M, Roberts A L. Influence of copper loading and surface coverage on the reactivity of granular iron toward 1,1,1-trichloroethane[J]. Environmental Science & Technology, 2006,40(5):1485-1490.
|
| [19] |
Davie M G, Reinhard M, Shapley J R. Metal-catalyzed reduction of N-Nitrosodimethylamine with hydrogen in water[J]. Environmental Science & Technology, 2006,40(23):7329-7335.
|
| [20] |
唐顺,杨宏伟,王小亻毛,等.铸铁还原氯乙酸的影响因素与机制研究[J]. 环境科学, 2014,35(3):972-978.
|
| [21] |
Odziemkowski M S, Gui L, Gillham R W. Reduction of N-Nitrosodimethylamine with granular iron and nickel-enhanced iron. 2. mechanistic studies[J]. Environmental Science & Technology, 2000,34(16):3495-3500.
|
| [22] |
Han Y, Chen Z, Tong L, et al. Reduction of N-Nitrosodimethylamine with zero-valent zinc[J]. Water Research, 2013,47(1):216-224.
|
| [23] |
Lund H, Krabisch L, Zimmer E C. Electroorganic Preparations. Ⅲ. Polarography and Reduction of N-Nitrosamines[J]. Acta Chemica Scandinavica, 1957,11:990-996.
|
|
|
|
