The effect of temperature on the ability of wetlands to remove nitrates is captured through the relationship of the time constant with temperature, which is given by k = k₂₀θ ^(T-20) Here, k₂₀ is the removal rate coefficient at 20 ^οC, is the temperature factor whose value in such systems is 1.15, and T is in ^οC. How will the performance of the wetland in Example 20.1. change if the temperature drops to 4 ^οC ?

Example 20.1: 

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Example 20.1 A wetland may be modeled as reactors in series. Using such an approach, the capacity of a wetland to remove nitrates may be represented by the following equation: G-C = (1 + K²) -* N→∞ exp(-ktn/h)