Effects of Intermixed Soils and Decomposition on Hydraulic Conductivity of Municipal Solid Waste in Bioreactor Landfills
Publication: Journal of Materials in Civil Engineering
Volume 24, Issue 10
Abstract
To estimate the generated leachate and design of a leachate recirculation system, a clear understanding of the hydraulic conductivity of municipal solid waste with degradation, and the effects of intermixed cover soils, is necessary. Two sets of laboratory-scale bioreactor landfills were simulated and sampled at various phases of decomposition. The state of decomposition was quantified by methane yield, pH, and volatile organic content. The matrix structure of the degradable solid waste component was broken down because of decomposition. However, daily cover soil, a nondegradable constituent of municipal solid waste, remained constant. Therefore, interaction between daily cover soil and municipal solid waste particles are expected to affect hydraulic characteristics resulting from degradation. The current study shows that the hydraulic conductivity of municipal solid waste with cover soil is lower than that without any intermixed cover soils. Based on experimental results, hydraulic conductivity of municipal solid waste samples in (aerobic) phase I is , and drops to and , with 20 and 30% cover soils, respectively. Hydraulic conductivity decreases with increasing soil percentage. Therefore, the effects of cover soils on municipal solid waste hydraulic conductivity should be evaluated and taken into consideration during the design and operation of a landfill recirculation system.
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References
American Public Health Association (APHA). (1992). Standard methods for the examination of water and wastewater. 18th Ed, American Public Health Association, Washington, DC.
ASTM. (2006). “Standard test method for amount of material in soils finer than no. 200 () sieve.”, West Conshohocken, PA.
ASTM. (2007). “Standard test method for particle-size analysis of soils.”, West Conshohocken, PA.
Barlaz, M. A., Ham, R. K., and Schaefer, D. M. (1990). “Methane production from municipal refuse: a review of enhancement techniques and microbial dynamics.” Crit. Rev. Environ. Contr., 19(6), 557–584.
Barlaz, M. A., Schaefer, D. M., and Ham, R. K. (1989). “Bacterial population development and chemical characteristics of refuse decomposition in a simulated sanitary landfill.” Appl. Environ. Microbiol., 55(1), 55–65.
Bleiker, E. D., McBean, E., and Farquhar, G. (1993). “Refuse sampling and permeability testing at the Brock West and Keele Valley landfills.” Proc., 16th Int. Madison Waste Conf., Dept. of Engineering Professional Development, Madison, WI, 548–567.
Chen, H. T. (1995). “Hydraulic conductivity of compacted municipal solid waste.” Bioresour. Technol., 51(1–2), 205–212.
Gabr, M. A., and Valero, S. N. (1995). “Geotechnical properties of solid waste.” Geotech. Test. J., 18(2), 241–251.
Hossain, M. S. (2002). “Mechanics of compressibility and strength of solid waste in bioreactor landfills.” Ph.D. thesis, Dept. of Civil Engineering, North Carolina State Univ., Raleigh, NC.
Hossain, M. S., Gabr, M. A., and Barlaz, M. A. (2003). “Relationship of compressibility parameters to municipal solid waste decomposition.” J. Geotech. Geoenviron. Eng., 129(12), 1151–1158.
Jhang, Y.-S., Kim, Y.-W., and Lee, S. I. (2002). “Hydraulic properties and leachate level analysis of Kimpo metropolitan landfill, Korea.” Waste Manage., 22(3), 261–267.
Oni, O. A. (2009). “Daily soil cover: A preliminary study of its impact on the landfill of municipal solid waste.” J. Appl. Sci. Res., 5(4), 359–371.
Powrie, W., and Beaven, R. P. (1999). “Hydraulic properties of household waste and applications for landfills.” Proc. ICE Geotech. Eng., 137(4), 235–247.
Powrie, W., Beaven, R. P., and Hudson, A. P. (2005). “Factors affecting the hydraulic conductivity of waste.” International work shop, Hydro-Physico-Mechanics of Landfills, LIRIGM Grenoble Univ. of France, 1–4.
Reinhart, D. R., and Townsend, T. G. (1998). Landfill bioreactor design and operation, Lewis Publishers, New York.
Tchobanoglous, G., Theisen, H., and Vigil, S. (1993). Integrated solid waste management-Engineering principles and management issues, McGraw-Hill, Boston, MA.
Thorneloe, S. A, Reisdorph, A., Laur, M., Pelt, R., Bass, R. L., and Burklin, C. (1999). “The U.S. Environmental Protection Agency’s landfill gas emissions model (LandGEM).” Proc., Sardinai 99 6th Int. Landfill Symp., 11–18, CISA Publisher, Padova, Italy.
U.S. Environmental Protection Agency (EPA). (2005). “Basic facts: Municipal solid waste.” 〈http://www.epa.gov/epaoswer/non-hw/muncpl/facts.htm〉 (Aug. 2009).
Vilar, O. M., and Carvalho, M. F. (2002). “Shear strength properties of municipal solid waste.” Environmental Geotechnics: Proc., 4th Int. Congress, Taylor and Francis, New York, 59–64.
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© 2012 American Society of Civil Engineers.
History
Received: Oct 13, 2010
Accepted: Dec 14, 2011
Published online: Dec 19, 2011
Published in print: Oct 1, 2012
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