Two systems were constructed to disinfect a raw water source. One of the systems was designed...

Two systems were constructed to disinfect a raw water source. One of the systems was designed as a CSTR, the other as PER (tank divided into 3, 5m long passes using vertical baffles).The flow rate is 90 m^3/day. The influent coliform is count 100. Both tanks have a volume of 30 m^3 (H= 2m, W=3m, L=5m). Chlorine is added as the disinfectant. The disinfection rates follows a first order relationship as follows

dN/dt = kN

Where N is the number of coliforms in the systems, k is the first order disinfection constant (9/day) What is the expected coliform concentration in the effluent from each system?

Expert Solution

Ally Wells answered 1 year ago

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