Browse > Article

Treatment of Garbage Leachate with Two-phase Anaerobic Digestion Coupled with Ultra Filtration  

Lee, Eun-Young (Department of Environmental Engineering, Inha University)
Kim, Hyung-Kuk (Department of Environmental Engineering, Inha University)
Giang, Luu Thi Thuy (Department of Environmental Engineering, Inha University)
Bae, Jae-Ho (Department of Environmental Engineering, Inha University)
Bae, Young-Shin (Sudokwon Landfill Site Management Corp)
Won, Jong-Choul (Sudokwon Landfill Site Management Corp)
Lee, Jae-Hoon (Hyundai Engineering CO., Ltd.)
Park, Seung-Kyun (Hyundai Engineering CO., Ltd.)
Cho, Yong-Wan (Hyundai Engineering CO., Ltd.)
Publication Information
Journal of Korean Society of Environmental Engineers / v.31, no.11, 2009 , pp. 997-1006 More about this Journal
Abstract
Organic removal efficiency and methane production rate, a feasibility of power generation from biogas, and the optimum conditions for membrane operation were evaluated for the pilot scale (5 tons/day) two-phase anaerobic digestion coupled with ultra filtration (TPADUF) system fed with garbage leachate. The TPADUF system is consisted of a thermophilic acidogenic reactor, a mesophilic methanogenic reactor, and an UF membrane. When garbage leachate with 150 g/L of TCOD was fed to the TPADUF up to organic loading rate (OLR) of 11.1 g COD/L/d, the effluent TCOD was lower than 6 g/L and the average removal efficiencies of TCOD and SCOD were higher than 95%. The methane composition of the gas was 65%, and the methane yield was 39 $m^3/m^3$ garbage leachatefed, 260 $m^3$/tons $COD_{added}$, or 270 $m^3$/tons $COD_{removed}$, even there was some gas leak. The power production per consumed gas was 0.96 kWh/$m^3$ gas or 1.49 kWh/$m^3$ methane. This lower power production efficiency mainly due to the small capacity of gas engine (15 kW class). The membrane was operated at the average flux of 10 L/$m^2$/hr. When the flux decreased, washing with water and chemical (NaOCl) was conducted to restore the flux. In the TPADUF system, optimum pH could be maintained without alkali addition by recycling the membrane concentrate or mixed liquor of the methanogenic digester to the acidogenic reactor. Also, partial production of methane in the acidogenic reactor had a positive effect on lowering the OLR of the methanogenic reactor.
Keywords
Garbage leachate; Two-phase anaerobic digestion with ultra filtration; Biogas; Power generation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 허안희, 이은영, 김희준, 배재호“, 실험실 규모 2상 혐기성 소화를 이용한 음식물 쓰레기 탈리액의 처리,”대한환경공학회지, 30(12), 1231-1238(2008)
2 남광건설“, Food Waste Recycling System,”2007 음식물류폐기물자원화연찬회발표자료(2007)
3 McCarty, P. L., “Anaerobic waste treatment fundamentals, Part 3: toxic materials and their control,”Public Works, 91-94(1964a)
4 Suzuki, H., Yoneyama, Y., and Tanaka, T., “Acidification during anaerobic treatment of brewery wastewater,”Water. Sci. Technol., 35(8), 265-274(1997)   DOI   ScienceOn
5 APHA, Standard methods for the examination of water and wastewater, 20th Eds., New York(1998)
6 Smith, D. P., and McCarty, P. L., “Factors governing methane fluctuations following shock loading of digesters,”WPCF, 62, 58-64(1990)
7 McCarty, P. L., “Anaerobic waste treatment fundamentals, Part 2: environmental requirement and control,”Public Works, 123-126(1964b)
8 Kugelman, I. J., and Chen, K. K., “Toxicity, synergism, and antagonism in anaerobic waste treatment processes,”Anaerobic Biological Treatment Processes, Advances in Chemistry, Series 105, American Chemical Society(1971)
9 Parkin, G. F., and Miller, S. W., “Response of methane fermentation to continuous addition of selected industrial toxicants,”Proceedings of the 37th Purdue Industrial Waste Confenrence, Lafayette, Ind.(1982)
10 환경부, 음식물류 폐기물 처리시설 발생폐수 육상처리 및 에너지 화종합대책, 2008-2012(2007)
11 환경부고시제2004-188호“, 수질오염공정시험방법”(2006)
12 Mosey, S. E., and Fernandes, X. A., “Patterns of hydrogen in biogas from the anaerobic digestion of milk-sugars,”Water. Sci. Technol., 21, 187-196(1989)
13 환경관리공단, 음식물류폐기물 및 발생폐수의 에너지화를 위한 방법별최적모델및설치∙운영지침최종보고(2008)
14 Asinari Di San Marzano, C. M., Binot, R., Bol, T., Fripiat, J. L., Hutschemakers, J., Melchior, J. L., Perez, I., Naveau, H., and Nyns, E. J., “Volatile fatty acids, an important state parameter for the control of reliability and the productivities of methane anaerobic digestions,”Biomass, 1, 47-59(1981)   DOI   ScienceOn