Application of the BioClog model for landfill leachate clogging of gravel-packed columns

A. J. Cooke; R. Kerry Rowe; J. VanGulck; Bruce Rittmann

doi:10.1139/t05-078

Application of the BioClog model for landfill leachate clogging of gravel-packed columns

A. J. Cooke, R. Kerry Rowe, J. VanGulck, Bruce Rittmann

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

A numerical, multiple-species, reactive chemical transport model ((BioClog) developed to predict clogging in landfill leachate collection systems is used to interpret results from experiments conducted with gravel-packed columns permeated with landfill leachate. The model predicts changes to the microbial community and leachate chemistry, including the concentrations of volatile fatty acids, suspended biomass, dissolved calcium, and suspended inorganic solids. The calculated quantity and composition of the clog matter (biomass and mineral), along with the associated decrease in porosity, are compared to the measured values. The modelled clogging is in reasonable agreement with that observed in the gravel column experiments. By identifying and quantitatively linking many microbiological, chemical, and transport mechanisms, the model helps elucidate the phenomena controlling the rate and extent of clogging.

Original language	English (US)
Pages (from-to)	1600-1614
Number of pages	15
Journal	Canadian Geotechnical Journal
Volume	42
Issue number	6
DOIs	https://doi.org/10.1139/t05-078
State	Published - Dec 1 2005

Keywords

Biofilms
Clogging
Landfills
Leachate collection systems
Mineral precipitation

ASJC Scopus subject areas

Civil and Structural Engineering
Geotechnical Engineering and Engineering Geology

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10.1139/t05-078

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abstract = "A numerical, multiple-species, reactive chemical transport model ((BioClog) developed to predict clogging in landfill leachate collection systems is used to interpret results from experiments conducted with gravel-packed columns permeated with landfill leachate. The model predicts changes to the microbial community and leachate chemistry, including the concentrations of volatile fatty acids, suspended biomass, dissolved calcium, and suspended inorganic solids. The calculated quantity and composition of the clog matter (biomass and mineral), along with the associated decrease in porosity, are compared to the measured values. The modelled clogging is in reasonable agreement with that observed in the gravel column experiments. By identifying and quantitatively linking many microbiological, chemical, and transport mechanisms, the model helps elucidate the phenomena controlling the rate and extent of clogging.",

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AU - Rowe, R. Kerry

AU - VanGulck, J.

AU - Rittmann, Bruce

PY - 2005/12/1

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Application of the BioClog model for landfill leachate clogging of gravel-packed columns

Abstract

Keywords

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