Question: Suppose a wastewater sample has an initial BOD 5 equal to 1 8 0 mg / L and a reaction rate constant ( K )

Suppose a wastewater sample has an initial BOD5 equal to 180 mg/L and a reaction rate constant (K) of 0.28/day. The wastewater also contains 25 mg/L of total Kjeldahl nitrogen. If the BOD reaction follows first-order kinetics, calculate the remaining BOD after 7 days. Assume nitrification does not start before 10 days.

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