Abstract
During denitrification carried out in the presence of methanol, glycerol, acetic and lactic acids as a C-source, the microbial growth parameters such as: maximum attainable biomass production ( P x max ), “optimal” biomass residence time ( Θ x ), biomass yield coefficients ( Y N and Y C) and specific biomass loss rate constants ( b N and b C) were estimated. Also, the following process parameters: maximum attainable biomass N and C removal rates ( ΔB x, Nmax and ΔB x, Cmax ) and corresponding rate constants ( K Bx, N and K Bx, C ) were calculated. The values of these parameters were interpreted in relation to the chemical structure of the C-sources for denitrification and degree of their assimilability by the bacteria and fungi which dominated in biocenoses.
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