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The kinetics of dissolved contaminant biodegradation are discussed in chapter 4 Wiedemeyer, section 4.4 pages 178-186. There are three mathematical models used to describe biodegradation kinetics:

1. Zero order (i.e. biodegradation rate is constant with time).

2. First order (i.e. biodegradation rate is directly proportional to dissolved contaminant concentration).

3. Monod kinetics.

 These three kinetic expressions are discussed in section 4.4. The concurrent assignment using the BIOSCREEN model will provide additional background on biodegradation kinetic concepts.

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