Browse > Article
http://dx.doi.org/10.7857/JSGE.2013.18.1.078

A Study on Remediation of Chlorinated Hydrocarbons and Explosives using Pulsed-UV System  

Lee, Han-Uk (Department of Chemistry and Environmental Sciences, Korea Army Academy)
Han, Jonghun (Department of Chemistry and Environmental Sciences, Korea Army Academy)
Yoon, Yeomin (Department of Civil and Environmental Engineering, University of South Carolina)
Lee, Jongyeol (Beautiful Environmental Construction Co.)
Her, Namguk (Department of Chemistry and Environmental Sciences, Korea Army Academy)
Publication Information
Journal of Soil and Groundwater Environment / v.18, no.1, 2013 , pp. 78-84 More about this Journal
Abstract
This study was conducted in order to evaluate the removal process for long-term contamination sources including chlorinated hydrocarbons (TCE and PCE) and explosive compounds (TNT, RDX, and HMX) in underground water using a pulsed-UV system. Crystallized cells containing the contaminants were placed 10, 20, and 40 cm away from a lamp that emits pulsed-UV rays in order to examine how the removal efficiency is influenced by the distance between the source of the light and the compounds. Chlorinated hydrocarbons were completely removed in 30 minutes with a distance of 10 cm, while PCE was completely removed even with a distance of 20 cm. In the case of explosive compounds, removal efficiencies slightly varied depending on the compounds. The majority of the compounds were perfectly removed with a contact time of 10 minutes. In particular, for RDX, the results showed that complete removal was obtained within one minute, regardless of the distance from the UV source. The amount of light energy is in inverse proportion to the distance, and thus the energy reaching the compounds severely diminishes as the distance increases. Therefore, the removal efficiency decreased with increasing distance in the system.
Keywords
Pulsed-UV; AOP; Water treatment; Chlorinated hydrocarbon; Explosive;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Ahn, Y.S., Yang, D.J., Chae, S.H., Lim, J.L., and Lee, K.H., 2009, Characteristics of Disinfection and Removal of 2-MIB Using Pulse UV Lamp, Korean society of water and wastewater, 23(1), 69-75.   과학기술학회마을
2 Brill, T.B. and Kenneth, J.J., 1993, Kinetics and Mechanism of Thermal Decomposition of Nitroaromatic Explosives, Chem. Rev., 93, 2567-2592.   DOI   ScienceOn
3 Choi, K.S., 2010, Assessment of natural organic matter (NOM), chlorine residual, and disinfection by-products formaion in pulsed UV treatment, Master's Thesis, Graduate School of Kookmin University, Seoul, Korea.
4 Drijvers, D., Langenhove, V.H., and Beckers M., 1999, Decomposition of phenol and trichloroethylene by the ultrasound/$H_{2}O_{2}$/ CuO process, Water Res., 33(5), 1187-1194.   DOI   ScienceOn
5 Fang, M., Li, Z., and Fu, Y., 2008, Substituent Effect of the CNO2 and N-NO2 Bond Dissociation Energies of Nitroaromatic Molecules, Chinese Journal of Chemistry, 26, 1112-1128.
6 Jung, E.T., Sohn, J.S., Park, S.H., and Kyung, K.S., 2012, Removal of taste and odor causing compounds in drinking water using Pulse UV System, Proceedings of Korean Water Congress 2012, Korean Society on Water Environment, KINTEX, Korea, 741-742.
7 Kazama, M., Ohno, S., and Kenmoku, Y., 1987, Treatment technology of organic waste water using low-pressure ultraviolet method, PPM, 18(2), 1-15.
8 Michal, P. and Zden k, F., 2010, Characterization of C-$NO_{2}$ Bonds in Nitroaromatic Compounds: A Bond Disproportionation Approach, Central European Journal of Energetic Materials, 7(2), 131-144.
9 Movahedyan, H., Seid Mohammadi, A.M., and Assadi, A., 2009, Comparison of different advanced oxidation precesses degrading p-chlorophenol in aqueous solution, Iran. J. Environ. Health. Sci. Eng., 6(3), 153-160.
10 Mullen, K. and Carron, K., 1994, Adsorption of Chlorinated Ethylenes at 1-Octadecanethiol-Modified Silver Surfaces, Analytical chemistry, 66(4), 478-483.   DOI
11 Park, J.S., Sung, C.D., and Park, S.H., 2012, Removal Characteristics of Non-biogradable Organics in RO Brine by Pulse UV System, Proceedings of Korean Water Congress 2012, Korean Society on Water Environment, KINTEX, Korea, 840-841.
12 Pruden, L.A. and Ollis, F.D., 1983, Photoassisted heterogeneous catalysis: the degradation of trichloroethylene in water, J. Catal., 82, 404-417.   DOI   ScienceOn
13 Shirayama, H., Tohezo, Y., and Taguchi, S., 2001, Phothdegradation of chlorinated hydrocarbons in the presence and absence of dissolved oxygen in water, Water Res., 35(8), 1941-1950.   DOI   ScienceOn
14 Shao, J., Cheng, X., and Yang, X., 2006, The C-$NO_{2}$ bond dissociation energies of some nitroaromatic compounds: DFT study, Struct. Chem., 17(5), 547-550.   DOI
15 Stasinakis, A.S., 2008, Use of selected advanced oxidation processes (AOPs) for wastewater treatment - a mini review, Global NEST Journal, 10(3), 376-385.
16 Zhao, G.Z. and Lu, M., 2012, Theoretical Studies on Nitramine Explosives with -NH2 and -F Groups, Bull. Korean Chem. Soc., 33(6), 1913-198.   DOI   ScienceOn
17 Vogelpohl, A. and Kim, S.M., 2004, Advanced oxidation processes (AOPs) in wasterwater treatment, Ind. Eng. Chem., 10(1), 33-40.