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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
Author(s) -
Hsieh Ke Ming,
Murgel George A.,
Lion Leonard W.,
Shuler Michael L.
Publication year - 1994
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260440212
Subject(s) - biofilm , trace metal , trace (psycholinguistics) , chemistry , environmental chemistry , lead (geology) , adsorption , metal , extracellular polymeric substance , biological system , bacteria , geology , biology , organic chemistry , paleontology , linguistics , philosophy , geomorphology
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.