Reduce the concentration in the lake below

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Reference no: EM13562610

A lake is stricken due to phosphorus excess leading to eutrophication and low dissolved oxygen. The target P concentration in the lake is <0.025 mg/l

The currect P inputs are as follows:

Creek A: Q=315 L/s, P=0.045 mg/l

Creek B Q=20L/s, P=0.048 mg/l

Creek C Q=28L/s, P=0.053 mg/l

Other non point sources: P in =221 kg/yr

Loading from an internal lake sediments P in =2158 kg/yr

Settling rate within the lake P out = 2030 kg/yr

A) calculate the steady state P concentration in the lake

B)Creek A has been identified as the easiest to control. What would the P concentration have to be reduced to in Creek A, in order to reduce the concentration in the lake below 0.025 mg/l?

Reference no: EM13562610

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