A primary clarifier is to be designed to treat a municipal wastewater. The influentto the clarifier has a flow rate of 7570 m³/d and a total suspended solids concentration of 320mg/L. A laboratory settling test was performed with the following results:Suspended Solids Concentration (mg/L) at Given DepthsSampling Depth (m)Time (min)0.611.222462.442722431.833.051023026228220157195230253301151602112212304590134163179195604810213115417090295886115141(a) Determine the design overflow rate and detention time assuming 65% of the suspendedsolids are to be removed. Use typical scaling/safety factors as appropriate.(b) Determine the required diameter (to the nearest 0.1 m) and the required depth (to thenearest 0.01 m) for the clarifier.

The given data is: Flow rate=7570 m3/day Total suspended solid concentration=320 mg/l Now as 65% of…

A primary clarifier is to be designed to treat a municipal wastewater. The influen to the clarifier has a flow rate of 7570 m³/d and a total suspended solids concentration of 320 mg/L. A laboratory settling test was performed with the following results: Suspended Solids Concentration (mg/L) at Given Depths Sampling Depth (m) 1.83 262 Time (min) 3.05 282 253 230 0.61 1.22 246 2.44 272 10 230 20 157 195 230 243 30 115 160 211 221 45 90 48 134 163 179 154 195 60 102 131 86 170 90 29 58 115 141 (a) Determine the design overflow rate and detention time assuming 65% of the suspended solids are to be removed. Use typical scaling/safety factors as appropriate. (b) Determine the required diameter (to the nearest 0.1 m) and the required depth (to the nearest 0.01 m) for the clarifier.

A primary clarifier is to be designed to treat a municipal wastewater. The influen to the clarifier has a flow rate of 7570 m³/d and a total suspended solids concentration of 320 mg/L. A laboratory settling test was performed with the following results: Suspended Solids Concentration (mg/L) at Given Depths Sampling Depth (m) 1.83 262 Time (min) 3.05 282 253 230 0.61 1.22 246 2.44 272 10 230 20 157 195 230 243 30 115 160 211 221 45 90 48 134 163 179 154 195 60 102 131 86 170 90 29 58 115 141 (a) Determine the design overflow rate and detention time assuming 65% of the suspended solids are to be removed. Use typical scaling/safety factors as appropriate. (b) Determine the required diameter (to the nearest 0.1 m) and the required depth (to the nearest 0.01 m) for the clarifier.

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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