Problem

A completely mixed aerated lagoon is being considered for pretreatment of a strong industr...

A completely mixed aerated lagoon is being considered for pretreatment of a strong industrial wastewater with k = 0.70 at 20°C and 0 = 1.035, using a detention time of 4 days. What is the BOD reduction at 20°C based on Eqs. (12.99) and (12.100)7 If the waste­water temperature is 10°C, compute the detention time required to achieve the same degree of treatment.

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