To adequately describe biofilm system, mass transfer resistance must be included. Recent models have combined mass transport phenomena with substrate removal kinetics to describe biofilm system.
But these models are seldom applied to the design of reactor due to the difficulties in solving the equations, and in measurement of related parameters. Currently most models can describe substrate utilization kinetics,but are lack in the explanation of biofilm growth, and in the prediction of the attacherd biomass.
The objectives of this study were to investigate methods to measure parameters, and to develop a model which could be used easily for the design and operation of biofilm reactor.
From the study, the following results were obtained.
1. A model for substrate removal was developed as
2. A model for attached biomass was revealed as
3. Parameters measured in this experimental condition were found to be reasonable, and they were as followings.
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