Browse > Article

Pilot Study on the Advanced Treatment of Combined Wastewater with Sewage as a Cosubstrate  

Kim, Mee-Kyung (Water Environment Research Department, National Institute of Environmental Research)
Seo, Sang-Jun (Dongmyeong Engineering Consultant & Architecture)
Rhew, Doug-Hee (Water Environment Research Department, National Institute of Environmental Research)
Jung, Dong-Il (Water Environment Research Department, National Institute of Environmental Research)
Publication Information
Journal of Korean Society on Water Environment / v.25, no.2, 2009 , pp. 227-234 More about this Journal
Abstract
In this research, a retrofitting process, which consists of a pretreatment system (coagulation) for dye wastewater combined with a biological nutrient system (MLE process using media), for a sewage treatment plant that has to treat dye wastewater efficiently with domestic wastewater were developed and a pilot plant was operated for verifying adoptability and performance of the developed advanced process for dye wastewater. From the results of the pilot plant operation, BOD 52.9%, $COD_{Cr}$ 55.9%, and color 71.3% were removed in pretreatment of coagulation process and the biodegradability of dye wastewater was improved to $0.32{\sim}0.59BOD/COD_{Cr}$ of the coagulated wastewater from $0.29{\sim}0.43BOD/COD_{Cr}$ of the raw dye wastewater. The final effluent concentrations were BOD of 8 mg/L, $COD_{Cr}$ of 43 mg/L, $COD_{Mn}$ of 18 mg/L, T-N of 8 mg/L, and T-P of 1.3 mg/L, respectively. Color was removed from 1655 to 468 unit by coagulation and then to 123 unit by MLE process. The HPLC analysis of aromatic amines in wastewater showed that decolorization was achieved by cometabolism while aromatic amines were produced by cleavage of azo bonds under anaerobic conditions and these products were removed in an aerobic tank subsequently. Nitrification rates of attached and suspended microorganisms were evaluated comparatively and the acclimating conditions of bacteria on media were validated by the scanning electron microscope.
Keywords
Advanced treatment process; Coagulation; Dyeing wastewater; Modified Ludzack and Ettinger process; Retrofitting;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Panswad, T. and Luangdilok, W. (2000). Decolorization of Reactive Dyes with Different Molecular Structures under Different Environmental Conditions. Water Research, 34(17), pp. 4177-4184   DOI   ScienceOn
2 김미경, 서상준, 신응배(2006a). 염색폐수의 생물학적 색도제거 연구. 수질보전 한국물환경학회지, 22(2), pp. 333-341
3 Carliell, C. M., Barclay, S. J., Naidoo, N., and Burcley, C. A. (1995). Microbial Decolorization of a Reactive Azo Dye under Anaerobic Conditions. Water SA., 21(1), pp. 61-69
4 환경부(2004). 수질오염공정시험방법(환경부고시 제2004-188호)
5 Frank, P. Z. and Santiago, V. (2005). Combined anaerobicaerobic treatment of azo dyes-A short review of bioreactor studies. Water Research, 39, pp. 1425-1440   DOI   ScienceOn
6 김미경, 서상준, 안재환, 신응배(2006b). 염색폐수의 생물학적 처리에 미치는 Cosubstrates의 영향 및 색도제거 기전 연구. 대한환경공학회지, 28(7), pp. 738-745   과학기술학회마을
7 Zissi, U. and Lyberatos, G. (1996). Azo-Dye Biodegradation under Anoxic Conditions. Water Science and Technology, 34(5-6), pp. 495-500   DOI   ScienceOn
8 APHA, AWWA and WPCF (1998). Standard methods for the examination of water and wastewater, 20th Ed., Washington, D.C., U.S.A
9 환경부(2007). ’06년 하수종말처리시설 운영관리실태 분석. http://www.me.go.kr
10 Flores, E. R., Luijten, M., Donlon, B. A., Lettinga, G., and Field, J. A. (1997). Complete Biodegradation of the Azo Dye Azodisalicylate under Anaerobic Conditions. Environmental Science Technology, 31, pp. 2098-2103   DOI   ScienceOn