Degradation of trace nitrobenzene in water by microwave-enhanced H2O2-based process
Honghu ZENG, Lanjing LU, Meina LIANG, Jie LIU, Yanghong LI
Degradation of trace nitrobenzene in water by microwave-enhanced H2O2-based process
To evaluate possible use of microwave-enhanced H2O2-based (MW/H2O2) process to degrade trace nitrobenzene (NB) in water, a series of batch experiments were conducted. The results showed that 2450MHz microwave irradiation significantly enhanced oxidative decomposition of nitrobenzene (NB) in a H2O2 system. About 90% NB was degraded by the MW/ H2O2 process in 30 min. Moreover, the MW/ H2O2 process could enhanced the oxidative degradation of NB even at relatively low temperature (50°C). When the initial concentration of NB was 300μg/L, the optimum ratio of H2O2 to NB and MW power were 70 and 300 W respectively. The presence of humic acid significantly increased H2O2 dosage. The ultraviolet absorbance at 254 nm (UV254) indicated degradation of NB was stepwise and some intermediates were produced. The gas chromatography-mass spectrometric (GC-MS) analysis showed that main intermediates were nitrophenolic and carbonyl compounds.
microwave / hydrogen peroxide / nitrobenzene / humic acid
[1] |
Xing H J, Wang D K, Zhang C H, XU S W. Study on the accumulation toxicity and oxidative damage of nitrobenzene. Environmental Science, 2009, 28(2): 229-232 (in Chinese)
|
[2] |
Bhatkhande D S, Pangarkar V G, Beenackers A A C M. Photocatalytic degradation of nitrobenzene using titanium dioxide and concentrated solar radiation: chemical effects and scaleup. Water Research, 2003, 37(6): 1223-1230
CrossRef
Pubmed
Google scholar
|
[3] |
Qian Y. The Characteristics of Water Particles and Refractory Organics and the Principles of Control Technologies. Vol. 2: Refractory organics. Beijing: China Environmental Science Press, 2000 (in Chinese)
|
[4] |
Yin J J, Zhang P Y. Removal of trace nitribenzene in water by VUV/TiO2/O3. Environmental Science, 2009, 30(1): 134-139 (in Chinese)
|
[5] |
Xie J, Qu C T, Wang X Q, Liang W. Decomposition of nitrobenzene using ultrasound/H2O2/ CuO process. Journal of Xi’an University of Science and Technology, 2008, 28(3): 527-530 (in Chinese)
|
[6] |
Nomiya K, Hashino K, Nemoto Y, Watanabe M. Oxidation of toluene and nitrobenzene with 30% aqueous hydrogen peroxide catalyzed by vanadium(V)- substituted polyoxometalates. Journal of Molecular Catalysis A Chemical, 2001, 176(1-2): 79-86
CrossRef
Google scholar
|
[7] |
Klán P, Vavrik M. Non-catalytic remediation of aqueous solutions by microwave-assisted photolysis in the presence of H2O2. Journal of Photochemistry and Photobiology, 2006, 177(1): 24-33
CrossRef
Google scholar
|
[8] |
Rodríguez M, Kirchner A, Contreras S, Chamarro E, Esplugas S. Influence of H2O2 and Fe(III) in the photodegradation of nitrobenzene. Journal of Photochemistry and Photobiology, 2000, 133(1-2): 123-127
CrossRef
Google scholar
|
[9] |
Shen J M, Chen Z L, Li X Y, Qi F, Ye M M. Effect and mechanism of degradation of nitrobenzene in aqueous solution by O3/H2O2. Environmental Science, 2006, 27(9): 1791-1797 (in Chinese)
Pubmed
|
[10] |
Zhang J, Ma J, Yang Y X, Wang S J, Qin Q D. Degradation of trace nitrobenzene in aqueous solution by ozone with catalysis of nanosized TiO2 supported on Haydite. Environmental Science, 2007, 28(10): 2208-2212 (In Chinese)
Pubmed
|
[11] |
Ravera M, Buico A, Gosetti F, Cassino C, Musso D, Osella D. Oxidative degradation of 1,5-naphthalenedisulfonic acid in aqueous solutions by microwave irradiation in the presence of H2O2. Chemosphere, 2009, 74(10): 1309-1314
|
[12] |
Ju Y M, Yang S G, Ding Y C, Sun C, Gu C G, He Z, Qin C, He H, Xu B. Microwave-enhanced H2O2-based process for treating aqueous malachite green solutions: intermediates and degradation mechanism. Journal of Hazardous Materials, 2009, 171(1-3): 123-132
CrossRef
Pubmed
Google scholar
|
[13] |
Han D H, Cha S Y, Yang H Y. Improvement of oxidative decomposition of aqueous phenol by microwave irradiation in UV/H2O2 process and kinetic study. Water Research, 2004, 38(11): 2782-2790
CrossRef
Pubmed
Google scholar
|
[14] |
Eskicioglu C, Prorot A, Marin J, Droste R L, Kennedy K J. Synergetic pretreatment of sewage sludge by microwave irradiation in presence of H2O2 for enhanced anaerobic digestion. Water Research, 2008, 42(18): 4674-4682
CrossRef
Pubmed
Google scholar
|
[15] |
Sheng J. Xie i, Zhai G M, Zhang C J, Zhou Q. Liquid-liquid extraction / GC determination of nitrobenzene and its degradation products and study on its affecting factors. Water Purification Technology, 2007, 26(3): 69-73 (in Chinese)
|
[16] |
Horikoshi S, Serpone N. Photochemistry with microwaves. Journal of Photochemistry and Photobiology, 2009, 10(2): 96-110
CrossRef
Google scholar
|
[17] |
Serpone N, Horikoshi S, Emeline A V. Microwaves in advanced oxidation processes for environmental applications. A brief review. Journal of Photochemistry and Photobiology, 2010, 11(2-3): 114-131
CrossRef
Google scholar
|
[18] |
Yang S Y, Wang P, Yang X, Wei G, Zhang W Y, Shan L. A novel advanced oxidation process to degrade organic pollutants in wastewater: microwave-activated persulfate oxidation. Journal of Environmental Sciences (China), 2009, 21(9): 1175-1180
CrossRef
Pubmed
Google scholar
|
[19] |
Polshettiwar V, Varma R S. Aqueous microwave chemistry: a clean and green synthetic tool for rapid drug discovery. Chemical Society Reviews, 2008, 37(8): 1546-1557
CrossRef
Pubmed
Google scholar
|
[20] |
Ighigeanu D, Calinescu I, Martin D, Matei C. A new hybrid technique for the volatile organic compounds removal by combined use of electron beams, microwaves and catalysts. Nuclear Instruments & Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2008, 266(10): 2524-2528
CrossRef
Google scholar
|
[21] |
Tu Q Y, Zhou C S, Tang J P. Microwave assisted-semibionic extraction of lignan compounds from Fructus Forsythiae by orthogonal design. Journal of Central South University of Technology, 2008, 15(1): 59-63
|
[22] |
Yang Y, Wang P, Shi S J, Liu Y. Microwave enhanced Fenton-like process for the treatment of high concentration pharmaceutical wastewater. Journal of Hazardous Materials, 2009, 168(1): 238-245
CrossRef
Pubmed
Google scholar
|
[23] |
Remya N, Lin J G. Microwave-assisted carbofuran degradation in the presence of GAC, ZVI and H2O2: influence of reaction temperature and pH. Separation and Purification Technology, 2011, 76(3): 244-252
CrossRef
Google scholar
|
[24] |
Liu J, Wang J, Chen Y H, Lippold H, Lippmann-Pipke J. Comparative characterization of two natural humic acids in the Pearl River Basin, China and their environmental implications. Journal of Environmental Sciences (China), 2010, 22(11): 1695-1702
CrossRef
Pubmed
Google scholar
|
[25] |
Alcántara-Garduño M E, Okuda T, Nishijima W, Okada M. Ozonation of trichloroethylene in acetic acid solution with soluble and solid humic acid. Journal of Hazardous Materials, 2008, 160(2-3): 662-667
CrossRef
Pubmed
Google scholar
|
[26] |
Jiang S J, Liu Z Y. The meaning of UV254 as an organic matter monitoring parameter in water supply and wastewater treatment. Journal of Civil, Architectural and Environmental Engineering, 2002, 24(2): 61-65 (in Chinese)
|
/
〈 | 〉 |