Biofilm growth and mineral precipitation in synthetic leachate columns

A. J. Cooke; R. K. Rowe; B. E. Rittmann; J. VanGulck; S. Millward

doi:10.1061/(ASCE)1090-0241(2001)127:10(849)

Biofilm growth and mineral precipitation in synthetic leachate columns

A. J. Cooke, R. K. Rowe, B. E. Rittmann, J. VanGulck, S. Millward

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

38 Scopus citations

Abstract

The results of a numerical model developed to describe the clogging of the leachate collection systems are compared with data from column experiments conducted with synthetic landfill leachate. A biofilm kinetic model is used to calculate the utilization of organic substrates (acetate and propionate) and growth of active clog material, and the substrate removal is then linked to mineral precipitation. Calculated changes in the chemical oxygen demand and Ca²⁺ of the effluent leachate and the porosity profiles along the length of the column show encouraging agreement with measured values. Means to obtain reasonable parameter values are presented. The favorable outcome represents completion of an essential first step toward being able to predict what controls clogging in landfill leachate collection systems.

Original language	English (US)
Pages (from-to)	849-856
Number of pages	8
Journal	Journal of Geotechnical and Geoenvironmental Engineering
Volume	127
Issue number	10
DOIs	https://doi.org/10.1061/(ASCE)1090-0241(2001)127:10(849)
State	Published - Oct 2001
Externally published	Yes

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Environmental Science(all)

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10.1061/(ASCE)1090-0241(2001)127:10(849)

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title = "Biofilm growth and mineral precipitation in synthetic leachate columns",

abstract = "The results of a numerical model developed to describe the clogging of the leachate collection systems are compared with data from column experiments conducted with synthetic landfill leachate. A biofilm kinetic model is used to calculate the utilization of organic substrates (acetate and propionate) and growth of active clog material, and the substrate removal is then linked to mineral precipitation. Calculated changes in the chemical oxygen demand and Ca2+ of the effluent leachate and the porosity profiles along the length of the column show encouraging agreement with measured values. Means to obtain reasonable parameter values are presented. The favorable outcome represents completion of an essential first step toward being able to predict what controls clogging in landfill leachate collection systems.",

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AU - Rowe, R. K.

AU - Rittmann, B. E.

AU - VanGulck, J.

AU - Millward, S.

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AB - The results of a numerical model developed to describe the clogging of the leachate collection systems are compared with data from column experiments conducted with synthetic landfill leachate. A biofilm kinetic model is used to calculate the utilization of organic substrates (acetate and propionate) and growth of active clog material, and the substrate removal is then linked to mineral precipitation. Calculated changes in the chemical oxygen demand and Ca2+ of the effluent leachate and the porosity profiles along the length of the column show encouraging agreement with measured values. Means to obtain reasonable parameter values are presented. The favorable outcome represents completion of an essential first step toward being able to predict what controls clogging in landfill leachate collection systems.

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Biofilm growth and mineral precipitation in synthetic leachate columns

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