Interactions of microbial biofilms with toxic trace metals: 2. Prediction and verification of an integrated computer model of lead (II) distribution in the presence of microbial activity

The interfacial interactions of a toxic trace metal, Pb, with a surface modified by a marine film‐forming bacterium, Psedomonas atlantica, were predicted by a structured biofilm model used in conjunction with a chemical speciation model. The validity of the integrated model was tested for batch and...

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Bibliographic Details
Published in:Biotechnology and bioengineering 1994-06, Vol.44 (2), p.232-239
Main Authors: Hsieh, Ke Ming, Murgel, George A., Lion, Leonard W., Shuler, Michael L.
Format: Article
Language:English
Subjects:
560300 - Chemicals Metabolism & Toxicology
ADSORPTION
BACTERIA
biofilm
BIOSYNTHESIS
COMPUTERIZED SIMULATION
ELEMENTS
extracellular biopolymer
LEAD
lead microbe interaction
MANAGEMENT
MATERIALS RECOVERY
MATHEMATICAL MODELS
metal toxicity
METALS
MICROORGANISMS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
PROCESSING
PSEUDOMONAS
RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT
SIMULATION
SORPTION
SORPTIVE PROPERTIES
structured models
SURFACE PROPERTIES
SYNTHESIS
TOXICITY
WASTE MANAGEMENT
WASTE PROCESSING
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Description
Summary:The interfacial interactions of a toxic trace metal, Pb, with a surface modified by a marine film‐forming bacterium, Psedomonas atlantica, were predicted by a structured biofilm model used in conjunction with a chemical speciation model. The validity of the integrated model was tested for batch and continuous operations. Dynamic responses of the biophase due to transient lead concentration increases were also stimulated. The reasonable pre dictions achieved by the model demonstrate its utility in describing trace metal distributions in complex systems where the adsorption properties of inorganic surfaces are modified by adherent bacteria production of extracellular polymers. © 1994 John Wiley & Sons, Inc.
ISSN:0006-3592
1097-0290
DOI:10.1002/bit.260440212