Browse > Article

Refractory Textile Wastewater Treatment Using Cell-Immobilized Polyethylene glycol Media  

Han, Duk-Gyu (Department of Civil & Environmental Engineering, Hanyang University)
Cho, Young-Jin (Department of Civil & Environmental Engineering, Hanyang University)
Bae, Woo-Keun (Department of Civil & Environmental Engineering, Hanyang University)
Hwang, Byung-Ho (Institute of Construction Technology, Kumho Engineering & Construction)
Lee, Yong-Woo (Samsung Engineering, Corp.)
Publication Information
Journal of Korean Society of Environmental Engineers / v.28, no.3, 2006 , pp. 345-350 More about this Journal
Abstract
This study investigated the removal of recalcitrant organics in dyeing wastewater using a fluidized bed reactor(FBR) that contained cell-immobilized pellets. The pellets were manufactured and condensing the gel phase by mixing PEG-polymer and cells to form micro-porous PEG-polymer pellets whose size were ${\Phi}\;4mm{\times}H\;4mm$ on average. An industrial activated sludge without any pre-adaptation was used for the cell immobilization because it gave an equivalent removal efficiency to a pre-adapted sludges. The feed was obtained from an effluent of a biological treatment plant, which contained $SCOD_{Cr}$ of 330 mg/L and $SBOD_5$ of 20 mg/L. The $SCOD_{Cr}$ removal efficiency was over 45% and the effluent $COD_{Mn}$ concentration was less than 100 mg/L at HRTs from 6 to 24 hrs. The optimum HRT in the FBR was determined as 12 hrs considering the removal efficiency and cost. When a raw wastewater containing 768 mg/L of $COD_{Cr}$ was fed to the FBR, the effluent $COD_{Cr}$ concentration increased only slightly, giving a 70% of $COD_{Cr}$ removal or a 97% of $BCOD_5$ removal. This indicated that the FBR had an excellent capability of biodegradable organics removal also. In conclusion, the FBR could be applied to textile wastewater treatment in place of an activated sludge process.
Keywords
Immobilized Media; Textile Wastewater; Polyethylene Glycol;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Gibell, S., Environmental Pollution Control Textile Processing Industry, EPA Environmental Research Imformation Center, EPA-625/7-78-002, 121-126(1978)
2 Grady, Jr. C. P., Daigger, G. T., and Lim, H. C., Biological wastewater treatment revised and expanded, 2nd ed., Dekker, New York(1999)
3 Crank, J., 'The Mathematics of Diffusion,' 2nd ed., Clarendon Press, Oxford(1975)
4 Shaul, G. M., 'Fate of water soluble Azo dyes in the Activated Sludge Process,' Chemosphere, 22, 107-119 (1991)   DOI   ScienceOn
5 Paulsen, J. E., Oppen E., and Bakke R., 'Biofilm morphology in porous media, a study with microscopic and image techiques,' Water Sci. Technol., 36, 1-9(1997)   DOI   ScienceOn
6 김현경, '특수 미생물 포괄 친수성 PEG 담체의 합성연 구', 한양대 학교 석사학위 논문(2003)
7 Hashimoto, N. and Sumino, T., 'Waste treatment using activated sludge entrapped in polyethylene glycol prepolymer,' J. Ferment. Bioeng., 86(4), 424-426(1998)   DOI   ScienceOn
8 Porter, J. J. and Shinder, E. H., 'Long term biodegrada-bility of textile chemicals,' Textile Chem. Color., 48(9), 2199-2206(1976)
9 Nicolaou, M. and Hadjivassilis, I., 'Treatment of wastewater from the textile industry,' Water Sci. Technol., 25(1), 31-35(1992)
10 Vandevivere, P. C., Bianchi, R., and Verstraete, W., 'Treatment and Reuse of Wastewater from the Textile Wet-Processing Industry: Review of Emerging technologies,' J. Chem. Technol. Biotechnol., 72, 289-302(1998)   DOI   ScienceOn
11 Tyagi, R. D. and Vembu, K., Wastewater treatment by immobillized cells, CRC Press, Boston(1982)
12 角野立夫 外 3人,'包括固定化微生物を用いた廢水處理', 用水と廢水,' 34, 935-940(1992)
13 김홍태, 김규창, '염색폐수 처리성능에 대한 호기성 고정 및 유동층 생물막공법과 회전매체를 가진 완전혼합 활성 슬러지 공법의 비교연구', 한국환경과학회지, 8(4), 525-532(1999)