An activated sludge system (bioreactor with recycling) has a flow of 5,000 m³/day with X = 3,000 mg SS/L and So= 200 mg/L (BOD). The microbial kinetic constants are Y = 0.6 (mg SS/mg BOD), m = 2 d¹ and K, = 100 mg/L (as BOD, Neglect the death rate). We need to design an aeration system that will remove 90% of the BOD. (1) What is the volume of bioreactor (aeration tank) and HRT? (2) How much amount of WAS (waste activated sludge) is produced per day?
An activated sludge system (bioreactor with recycling) has a flow of 5,000 m³/day with X = 3,000 mg SS/L and So= 200 mg/L (BOD). The microbial kinetic constants are Y = 0.6 (mg SS/mg BOD), m = 2 d¹ and K, = 100 mg/L (as BOD, Neglect the death rate). We need to design an aeration system that will remove 90% of the BOD. (1) What is the volume of bioreactor (aeration tank) and HRT? (2) How much amount of WAS (waste activated sludge) is produced per day?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Wrong answers will be downvoted
An activated sludge system (bioreactor with recycling) has a flow of 5,000 m³/day with X = 3,000 mg SS/L and So= 200 mg/L (BOD). The microbial kinetic constants are Y = 0.6 (mg SS/mg BOD), m = 2 d¹ and K, = 100 mg/L (as BOD, Neglect the death rate). We need to design an aeration system that will remove 90% of the BOD.
(1) What is the volume of bioreactor (aeration tank) and HRT?
(2) How much amount of WAS (waste activated sludge) is produced per day?
(3) Determine the recycling flow rate when the biomass concentration in the clarifier (Xr) is 12,000 mg SS/L.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps with 5 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning