# 1. The design flow for a water treatment plant (WTP) is 1 MGD (3.8x103 m'/d). The...

1. The design flow for a water treatment plant (WTP) is 1 MGD (3.8x103 m'/d). The rapid mixing tank will have a mechanical mixer and the average alum dosage will be 30 mg/L theoretical mean hydraulic detention time of the tank will be 1 minute. Determine the following: a) the quantity of alum needed on a daily basis in kg/d, b) the dimensions of the tank in meters for a tank with equal length, width, and dept c) the power input required for a G of 900 sec for a water temperature of 10 °c express the answer in kW

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