An activated sludge system is composed of four aeration tanks, each of 18 m length 12 m width and 4.5 m depth. It treats sewage at an average flowrate of 9000 m³/day Calculate; (a) Sludge age, (b) F/M ratio, and (3) recirculation ratio. Use the followin data; • Influent BOD=200 mg/L. • MLVSS=2080 mg/L. • Recirculation flowrate= 4500 m³/day. • Flowrate of waste sludge= 150 m³/ day. • VSS in waste sludge= 6880 mg/L.

An activated sludge system is composed of four aeration tanks, each of 18 m length 12 m width and 4.5 m depth. It treats sewage at an average flowrate of 9000 m³/day Calculate; (a) Sludge age, (b) F/M ratio, and (3) recirculation ratio. Use the followin data; • Influent BOD=200 mg/L. • MLVSS=2080 mg/L. • Recirculation flowrate= 4500 m³/day. • Flowrate of waste sludge= 150 m³/ day. • VSS in waste sludge= 6880 mg/L.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Give valid reasons to study civil engineering. Guide Questions:Why is it important to study civil engineering and etc
How do we design Building Water Supply systems? a. Cold Water System b. Hot Water System How do we design Building Sewage systems?
Define each term in three sentences only. 1. Transportation 2. Transportation Engineering 3. Transportation System
A set of customs, rules, or regulations dealing with formality or precedence O Protocols Standards O Architecture O Network
How do the standards and codes (example: ASTM, NSCP, etc.) establish, help a Civil Engineer in his path?
Question: Why Occupational Safety and Health is important? Note: -NO PLAGIARISM PLEASE!!! -100 words or more.
What is Industrial Ecolog?
How do structural engineers assist in: designing buildings that can withstand earthquakes. constructing buildings that can withstand earthquakes. o predicting earthquakes. developing a plan for earthquake disaster management, including relief and recovery.
Civil Engineering As a project manager, you have been given task to complete. Discuss with a sketch the life cycle of a project you are going to use to complete the task.
What are sub-disciplines of civil engineering? Write study fields for each