A water-treatment plant is to process 30,000 m³/d. The rapid mixing tank will blend 35mg/l of alum with the flow and is to have a detention time of 2 min. The tank is to have a square cross-section with vertical baffles and a flat blade impeller. Determine the following: (a) Quantity (Kilograms per day) of alum added (b) Dimensions of the tank (c) Power input (kilowatts) necessary for a G value of 900 sec¹ Use dynamic viscosity of 1.139 10³ Pa.sec

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A water-treatment plant is to process 30,000 m³/d. The rapid mixing tank will blend
35mg/l of alum with the flow and is to have a detention time of 2 min. The tank is to have a
square cross-section with vertical baffles and a flat blade impeller. Determine the following:
(a) Quantity (Kilograms per day) of alum added
(b) Dimensions of the tank
(c) Power input (kilowatts) necessary for a G value of 900 sec¹
Use dynamic viscosity of 1.139 10 Pa sec
Transcribed Image Text:A water-treatment plant is to process 30,000 m³/d. The rapid mixing tank will blend 35mg/l of alum with the flow and is to have a detention time of 2 min. The tank is to have a square cross-section with vertical baffles and a flat blade impeller. Determine the following: (a) Quantity (Kilograms per day) of alum added (b) Dimensions of the tank (c) Power input (kilowatts) necessary for a G value of 900 sec¹ Use dynamic viscosity of 1.139 10 Pa sec
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