A complete-mix anaerobic digester is used to treat the sludge from primary sedimentation tank. The sludge flowrate is 130 m3 /d and the bCOD loading is 6000 kg/d. The sludge has a solid content of 5% and a specific gravity of 1.03. Solid retention time (SRT) is 12 days and the temperature in digester is at 35 °C. Methane conversion factor at 35 °C is 0.40. Efficiency of waste utilization E is 0.65. Y = 0.06 kg VSS/kg bCOD utilized and kd = 0.02 d-1. Digester gas contains 63 percent methane. Determine the digester volume. Calculate the quantity of volatile solids and total gas produced per day in the digester.
A complete-mix anaerobic digester is used to treat the sludge from primary sedimentation tank. The sludge flowrate is 130 m3 /d and the bCOD loading is 6000 kg/d. The sludge has a solid content of 5% and a specific gravity of 1.03. Solid retention time (SRT) is 12 days and the temperature in digester is at 35 °C. Methane conversion factor at 35 °C is 0.40. Efficiency of waste utilization E is 0.65. Y = 0.06 kg VSS/kg bCOD utilized and kd = 0.02 d-1. Digester gas contains 63 percent methane. Determine the digester volume. Calculate the quantity of volatile solids and total gas produced per day in the digester.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
A complete-mix anaerobic digester is used to treat the sludge from primary sedimentation tank. The sludge flowrate is 130 m3 /d and the bCOD loading is 6000 kg/d. The sludge has a solid content of 5% and a specific gravity of 1.03. Solid retention time (SRT) is 12 days and the temperature in digester is at 35 °C. Methane conversion factor at 35 °C is 0.40. Efficiency of waste utilization E is 0.65. Y = 0.06 kg VSS/kg bCOD utilized and kd = 0.02 d-1. Digester gas contains 63 percent methane. Determine the digester volume. Calculate the quantity of volatile solids and total gas produced per day in the digester.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
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