Comparison of Bioenhancement of Nonaqueous Phase Liquid Pool Dissolution with First- and Zero-Order Biokinetics
Publication: Journal of Environmental Engineering
Volume 131, Issue 1
Abstract
Dissolution is one of the key physiochemical processes controlling subsurface remediation of nonaqueous phase liquid (NAPL) pools. One process that can accelerate NAPL pool dissolution is in situ biodegradation. The bioenhancement of NAPL pool dissolution has been studied previously using an analytical solution for the case of first-order biodegradation kinetics. However, data suggest that at typical NAPL source zone concentrations, mathematical description of dissolution bioenhancement may require biokinetic models ranging from first to zero order. In this work, it was determined that an -order approximation could be derived using the first-order case and bioenhancement was compared under first- and zero-order conditions. Two example scenarios demonstrate that predictions of the potential magnitude of the bioenhancement effect are erroneously high when the first- and zero-order cases are incorrectly applied.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 131 • Issue 1 • January 2005
Pages: 165 - 169
Copyright
© 2004 ASCE.
History
Received: Jun 4, 2002
Accepted: Mar 2, 2004
Published online: Jan 1, 2005
Published in print: Jan 2005
Notes
Note. Associate Editor: Jiayang (Jay) Cheng
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