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Title: Dynamics of Coupled Contaminant and Microbial Transport in Heterogeneous Porous Media: Purdue Component

Abstract

Dynamic microbial attachment/detachment occurs in subsurface systems in response to changing environmental conditions caused by contaminant movement and degradation. Understanding the environmental conditions and mechanisms by which anaerobic bacteria partition between aqueous and solid phases is a critical requirement for designing and evaluating in situ bioremediation efforts. This interdisciplinary research project, of which we report only the Purdue contribution, provides fundamental information on the attachment/detachment dynamics of bacteria in heterogeneous porous media. Fundamental results from the Purdue collaboration are: (a) development of a matched-index method for obtaining 3-D Lagrangian trajectories of microbial sized particles transporting within porous media or microflow cells, (b) application of advanced numerical methods to optimally design a microflow cell for studying anaerobic bacterial attachment/detachment phenomena, (c) development of two types of models for simulating bacterial movement and attachment/detachment in microflow cells and natural porous media, (d) application of stochastic analysis to upscale pore scale microbial attachment/detachment models to natural heterogeneous porous media, and (e) evaluation of the role nonlocality plays in microbial dynamics in heterogeneous porous media

Authors:
;
Publication Date:
Research Org.:
University of South Carolina (US)
Sponsoring Org.:
(US)
OSTI Identifier:
792910
Report Number(s):
DOE/ER/62355
EMPS 54681; OSTI 765221; TRN: US200206%%86
DOE Contract Number:  
FG07-97ER62355
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; BACTERIA; POLLUTANTS; LAGRANGIAN FUNCTION; ENVIRONMENTAL TRANSPORT; BIODEGRADATION; REMEDIAL ACTION; PLANNING; POROUS MATERIALS; BIOREMEDIATION; HETEROGENEOUS POROUS MEDIA; MATCHED-INDEX METHOD; LAGRANGIAN TRANJECTORIES; MICROFLOW CELL; STOCHASTIC ANALYSIS; NONLOCALITY

Citation Formats

Cushman, J.H., and Madilyn Fletcher. Dynamics of Coupled Contaminant and Microbial Transport in Heterogeneous Porous Media: Purdue Component. United States: N. p., 2000. Web. doi:10.2172/792910.
Cushman, J.H., & Madilyn Fletcher. Dynamics of Coupled Contaminant and Microbial Transport in Heterogeneous Porous Media: Purdue Component. United States. doi:10.2172/792910.
Cushman, J.H., and Madilyn Fletcher. Thu . "Dynamics of Coupled Contaminant and Microbial Transport in Heterogeneous Porous Media: Purdue Component". United States. doi:10.2172/792910. https://www.osti.gov/servlets/purl/792910.
@article{osti_792910,
title = {Dynamics of Coupled Contaminant and Microbial Transport in Heterogeneous Porous Media: Purdue Component},
author = {Cushman, J.H. and Madilyn Fletcher},
abstractNote = {Dynamic microbial attachment/detachment occurs in subsurface systems in response to changing environmental conditions caused by contaminant movement and degradation. Understanding the environmental conditions and mechanisms by which anaerobic bacteria partition between aqueous and solid phases is a critical requirement for designing and evaluating in situ bioremediation efforts. This interdisciplinary research project, of which we report only the Purdue contribution, provides fundamental information on the attachment/detachment dynamics of bacteria in heterogeneous porous media. Fundamental results from the Purdue collaboration are: (a) development of a matched-index method for obtaining 3-D Lagrangian trajectories of microbial sized particles transporting within porous media or microflow cells, (b) application of advanced numerical methods to optimally design a microflow cell for studying anaerobic bacterial attachment/detachment phenomena, (c) development of two types of models for simulating bacterial movement and attachment/detachment in microflow cells and natural porous media, (d) application of stochastic analysis to upscale pore scale microbial attachment/detachment models to natural heterogeneous porous media, and (e) evaluation of the role nonlocality plays in microbial dynamics in heterogeneous porous media},
doi = {10.2172/792910},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}