You have been asked to provide a design for a rapid mix tank at a water treatment plant which has an average water temperature of 50°F. The tank is to have a detention time (ta = HRT) of 1.5 seconds, a mixing intensity (G) of 2,000/second, and treat a flow (Q) of 10 mgd. a. Identify the volume of reactor required (in ft and gallons) b. Find the reactor dimensions (i.e., Depth and Diameter, in feet) if the rapid mix tank is cylindrical with a depth 2x the basin diameter. Calculate the water power required (in HP) to achieve the desired mixing. d. If motors are available with an efficiency of 68%, what motor power is required (in HP)? с.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Part d

You have been asked to provide a design for a rapid mix tank at a water treatment plant which
has an average water temperature of 50°F. The tank is to have a detention time (ta = HRT) of 1.5
seconds, a mixing intensity (G) of 2,000/second, and treat a flow (Q) of 10 mgd.
a. Identify the volume of reactor required (in ft and gallons)
b. Find the reactor dimensions (i.e., Depth and Diameter, in feet) if the rapid mix tank is
cylindrical with a depth 2x the basin diameter.
c. Calculate the water power required (in HP) to achieve the desired mixing.
d. If motors are available with an efficiency of 68%, what motor power is required (in HP)?
5.
Transcribed Image Text:You have been asked to provide a design for a rapid mix tank at a water treatment plant which has an average water temperature of 50°F. The tank is to have a detention time (ta = HRT) of 1.5 seconds, a mixing intensity (G) of 2,000/second, and treat a flow (Q) of 10 mgd. a. Identify the volume of reactor required (in ft and gallons) b. Find the reactor dimensions (i.e., Depth and Diameter, in feet) if the rapid mix tank is cylindrical with a depth 2x the basin diameter. c. Calculate the water power required (in HP) to achieve the desired mixing. d. If motors are available with an efficiency of 68%, what motor power is required (in HP)? 5.
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