A chlorination unit with a chlorine dosing rate of 0.3 kg/hr can produce an inactivation efficiency of

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Question:

A chlorination unit with a chlorine dosing rate of 0.3 kg/hr can produce an inactivation efficiency of 99.9% for a water flow of 200 m3 /hr. As the water flow rate increases to 250 m 3 /hr, the chlorine dosing rate should change to what (kg/hr) approximately to maintain a similar disinfection efficiency.