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Title: Biologically reactive multispecies transport in sanitary landfill

Abstract

This study proposes a numerical model for gas- and water-phase solute transport describing the change in leachate quality and gas production by microbial activities in a sanitary landfill. The proposed model includes gas and water flows, multispecies transport of gas and water phases, interphase mass transfer of solids and water-phase solutes, microbial growth and death, and aerobic and anaerobic biodegradation. In simulations of gas-phase flow and transport, the influence of gas temperature and composition on flow and transport phenomena area incorporated by changing the gas viscosity and diffusivity. Simulation results using the proposed model are very close to the results of the BIOF and T model and analytical solutions on test problems. Finally, the model is applied to simulate the leachate quality and three gas compositions of a waste decomposition experiment using a lysimeter. The results of the simulation explain the dynamic fluctuation of gas composition with time and match the leachate quality and three gas compositions measured in a limited time span.

Authors:
; ;
Publication Date:
Research Org.:
Seoul National Univ. (KR)
OSTI Identifier:
20075767
Alternate Identifier(s):
OSTI ID: 20075767
Resource Type:
Journal Article
Journal Name:
Journal of Environmental Engineering (New York)
Additional Journal Information:
Journal Volume: 126; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 0733-9372
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; SANITARY LANDFILLS; SOLUTES; ENVIRONMENTAL TRANSPORT; B CODES; LEACHATES; PHASE STUDIES; BIODEGRADATION

Citation Formats

Suk, H., Lee, K.K., and Lee, C.H. Biologically reactive multispecies transport in sanitary landfill. United States: N. p., 2000. Web. doi:10.1061/(ASCE)0733-9372(2000)126:5(419).
Suk, H., Lee, K.K., & Lee, C.H. Biologically reactive multispecies transport in sanitary landfill. United States. doi:10.1061/(ASCE)0733-9372(2000)126:5(419).
Suk, H., Lee, K.K., and Lee, C.H. Mon . "Biologically reactive multispecies transport in sanitary landfill". United States. doi:10.1061/(ASCE)0733-9372(2000)126:5(419).
@article{osti_20075767,
title = {Biologically reactive multispecies transport in sanitary landfill},
author = {Suk, H. and Lee, K.K. and Lee, C.H.},
abstractNote = {This study proposes a numerical model for gas- and water-phase solute transport describing the change in leachate quality and gas production by microbial activities in a sanitary landfill. The proposed model includes gas and water flows, multispecies transport of gas and water phases, interphase mass transfer of solids and water-phase solutes, microbial growth and death, and aerobic and anaerobic biodegradation. In simulations of gas-phase flow and transport, the influence of gas temperature and composition on flow and transport phenomena area incorporated by changing the gas viscosity and diffusivity. Simulation results using the proposed model are very close to the results of the BIOF and T model and analytical solutions on test problems. Finally, the model is applied to simulate the leachate quality and three gas compositions of a waste decomposition experiment using a lysimeter. The results of the simulation explain the dynamic fluctuation of gas composition with time and match the leachate quality and three gas compositions measured in a limited time span.},
doi = {10.1061/(ASCE)0733-9372(2000)126:5(419)},
journal = {Journal of Environmental Engineering (New York)},
issn = {0733-9372},
number = 5,
volume = 126,
place = {United States},
year = {2000},
month = {5}
}