f2Dr. Muhammad Abdulredha & MS.c Buraq A. MohammedSanitary and Environmental EngineeringExample 7: A water plant treating 30000 m/day. The rapid mixing is used tank blend 35mg/L of alum with the flow and is to have a detention time of 2 min. The tankis to have a square cross-section with vertical shaft and a flat blade impeller.Determine the following:1- Quantity of alum added (Kg/day)2- Dimensions of tank by using upper limits of specifications.Example 8: A flocculation basin is designed to treat water of 1 m/s flow rate. The length ofthe basin is 30 m and width is 12.25 m and the basin depth is 4.5 m. The basinis provided by four axes (shafts) a long its length, each shafts has two blades,the width of each blade is 0.3 m with 12 m length, the distance between thecenter of shaft and the center of each blade is 2 m, the coefficient of drag is 1.8,the velocity of blade in the basin 2.5 rpm. use (u = 1.312* 10-3) N.s/m?, p =1000 Kg/m³. calculate:1- The power requirement in unit of (KW).2- Flocculation time in unit of (min).3- The volume of G of each blade.Example 9: A rectangular flocculator is to be designed with one rotating paddle, assumedimension time is 20 min, Gt = 15*10', CD = 1.2, rpm = 2, dia./w = 0.5, 25%losses in velocity, area of one paddle = 20% cross section area. Find:3. Dimensions of the tank L, W and H (m).4. Power for mixing (kW).5. Velocity gradient (sec!).

The water treatment plant is used to remove bacteria or pathogenic substances from the tank.…

A water plant treating 30000 m³/day. The rapid mixing is used tank blend 35 mg/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 shaft and a flat blade impeller. Determine the following: 1- Quantity of alum added (Kg/day) 2- Dimensions of tank by using upper limits of specifications.

A water plant treating 30000 m³/day. The rapid mixing is used tank blend 35 mg/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 shaft and a flat blade impeller. Determine the following: 1- Quantity of alum added (Kg/day) 2- Dimensions of tank by using upper limits of specifications.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Dr. Example 7: A water plant treating 30000 m³/day. The rapid mixing is used tank blend 35 mg/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 shaft and a flat blade impeller. Determine the following: 1- Quantity of alum added (Kg/day) 2- Dimensions of tank by using upper limits of specifications.