Determine the underflow volume of sludge wastage An activated sludge process (ASP) is designed for secondary treatment of 7500 m³/dayof municipal wastewater. After primary claritier, the ultimate BOD of the influent, whichenters into ASP reactor is 200 mgt. Treated effluent after secondary clarifier is requiredto have an ultimate BOD of 20 mg. Mix liquor volatile suspended solids (MLVSS)concentration in the reactor and the underflow is maintained as 3000 mg and 12000 mg/L.respectively.y. The hydraulic retention time and mean cell residence time are 0.2 day and10 days, respectively. A representative flow diagram of the ASP is shown below.Inflent afterPrimary carASPReturn foSecondary TreatedclarifierUnderflowShudge wastage

Given: Municipal waste water discharge Hydraulic retention time Mix Liquor Volatile Suspended Solids…

An activated sludge process (ASP) is designed for secondary treatment of 7500 m³/day of municipal wastewater. After primary claritier the ultimate BOD of the influent, which enters into ASP reactor is 200 mgt. Treated effluent after secondary clarifier is required to have an ultimate BOD of 20 mg/L. Mix liquor volatile suspended solids (MLVSS) concentration in the reactor and the underflow is maintained as 3000 mg and 12000 mg/L. respectively. T y. The hydraulic retention time and mean cell residence time are 0.2 day and 10 days, respectively. A representative flow diagram of the ASP is shown below. Influent after Primary car ASP Return fo Secondary Treated clarifier Underflow Sludge wastage

An activated sludge process (ASP) is designed for secondary treatment of 7500 m³/day of municipal wastewater. After primary claritier the ultimate BOD of the influent, which enters into ASP reactor is 200 mgt. Treated effluent after secondary clarifier is required to have an ultimate BOD of 20 mg/L. Mix liquor volatile suspended solids (MLVSS) concentration in the reactor and the underflow is maintained as 3000 mg and 12000 mg/L. respectively. T y. The hydraulic retention time and mean cell residence time are 0.2 day and 10 days, respectively. A representative flow diagram of the ASP is shown below. Influent after Primary car ASP Return fo Secondary Treated clarifier Underflow Sludge wastage

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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