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Reaction kinetics in biofilms
Author(s) -
Lewandowski Zbigniw,
Walser Gabriele,
Characklis William G.
Publication year - 1991
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.260380809
Subject(s) - biofilm , kinetics , chemistry , biology , bacteria , physics , quantum mechanics , genetics
A novel in situ microtechnique allows evaluating parameters of diffusion‐controlled reactions in biofilms. A microprobe, 15 μm in diameter, was used to simultaneously measure the dissolved oxygen concentration and the optical density at different depths in a submerged biofilm. Based on the results, the biofilm diffusion coefficient for dissolved oxygen, D f the dissolved oxygen flux through the biofilm surface, J 02 , and the half velocity coefficient, K s , have been calculated.