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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 3, 2007
Accepted February 9, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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오존을 산화제로 사용한 다양한 고급산화 공정에 의한 TNT Red Water의 처리

Treatment of TNT Red Water by the Ozone-based Advanced Oxidation Processes

전정철 권태옥 문일식^†

Jun Chul Jun Tae Ouk Kwon Il Shik Moon^†

순천대학교 공과대학 화학공학과, 540-742 전남 순천시 매곡동 315

Department of Chemical Engineering, Sunchon National University, 315 Maegok-dong, Suncheon, Jeonnam 540-742, Korea

ismoon@sunchon.ac.kr

Korean Chemical Engineering Research, June 2007, 45(3), 298-303(6), NONE Epub 25 June 2007

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Abstract

오존을 중심으로 한 다양한 조합의 고급산화 공정(advanced oxidation process: AOP)을 이용하여 2,4,6-trinitrotoluene(TNT) 제조 공정에서 발생되는 난분해성 폐수인 red water(RW)의 유기물 및 색도 제거 연구를 수행하였다. 적용된 고급산화 공정은 O3, UV/O3, UV/O3/H2O2, UV/O3/H2O2/Fe2+ 공정이었으며, 유기물 및 색도 제거 효과는 O3

Several combinations of ozone based advanced oxidation processes were tested for the treatment of red water (RW) containing recalcitrant chemical pollutants produced from 2,4,6-trinitrotoluene (TNT) manufacturing process. O3, UV/O3, UV/O3/H2O2, UV/O3/H2O2/Fe2+ processes were tested for the treatment of RW. The order of organic and color removal efficiency was found to be : O3 ≤ UV/O3 < UV/O3/H2O2 < UV/O3/H2O2/Fe2+. The optimum conditions for the removal of organic and color in the UV/O3/H2O2/Fe2+ process were 0.053 g/min of ozone flow rate, 10 mM of H2O2 concentration and 0.1 mM of FeSO4 concentration. Organic and color removal efficiencies were 96 and 100 % respectively in the UV/O3/H2O2/Fe2+ process. tert-butyl alcohol (t-buOH) was used as the hydroxyl radical scavenger. Enhancement of hydroxyl radical production was achieved by the combination of ozone with several oxidants such as UV, H2O2, Fe2+.

Keywords

2,4,6-trinitrotoluene Red Water AOP Ozone Hydroxyl Radical

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