Linked Life Data

19309753

Source:http://linkedlifedata.com/resource/pubmed/id/19309753

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2009-6-11
pubmed:abstractText
While biological clogging of porous systems can be problematic in numerous processes (e.g., microbial enhanced oil recovery-MEOR), it is targeted during bio-barrier formation to control sub-surface pollution plumes in ground water. In this simulation study, constant pressure drop (CPD) and constant volumetric flow rate (CVF) operational modes for nutrient provision for biofilm growth in a porous system are considered with respect to optimum (minimum energy requirement for nutrient provision) permeability reduction for bio-barrier applications. Biofilm growth is simulated using a Lattice-Boltzmann (LB) simulation platform complemented with an individual-based biofilm model (IbM). A biomass detachment technique has been included using a fast marching level set (FMLS) method that models the propagation of the biofilm-liquid interface with a speed proportional to the adjacent velocity shear field. The porous medium permeability reduction is simulated for both operational modes using a range of biofilm strengths. For stronger biofilms, less biomass deposition and energy input are required to reduce the system permeability during CPD operation, whereas CVF is more efficient at reducing the permeability of systems containing weaker biofilms.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1097-0290
pubmed:author
pubmed:copyrightInfo
(c) 2009 Wiley Periodicals, Inc.
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
103
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
767-79
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Towards optimum permeability reduction in porous media using biofilm growth simulations.
pubmed:affiliation
Department of Chemical Engineering, University of Cambridge, Pembroke Street, Cambridge, United Kingdom.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't