16 MLD of water is flowing through a $2.5 \mathrm{~km}$ long pipe of diameter $45 \mathrm{~cm} .$ The chlorine at the rate of $32 \mathrm{~kg} / \mathrm{d}$ is applied at the entry of this pipe so that disinfected water is obtained at the exit. There is a proposal to increase the flow through this pipe to 22 MLD from 16 MLD. Assume the dilution coefficient, $\mathrm{n}=1 .$ The minimum amount of chlorine (in $\mathrm{kg}$ per day) to be applied to achieve the same degree of disinfection for the enhanced flow is
(A) 60.50
(B) 44.00
(C) 38.00
(D) 23.27
16 MLD of water is flowing through a $2.5 \mathrm{~km}$ long pipe of diameter $45 \mathrm{~cm} .$ The chlorine at the rate of $32 \mathrm{~kg} / \mathrm{d}$ is applied at the entry of this pipe so that disinfected water is obtained at the exit. There is a proposal to increase the flow through this pipe to 22 MLD from 16 MLD. Assume the dilution coefficient, $\mathrm{n}=1 .$ The minimum amount of chlorine (in $\mathrm{kg}$ per day) to be applied to achieve the same degree of disinfection for the enhanced flow is
(A) 60.50
(B) 44.00
(C) 38.00
(D) 23.27