3.4 TS and VS, COD and BOD - Humanitarian Sanitation Hub

Biogas Sanitation

Biogas Sanitation: Course at a Glance
1 Basics of Anaerobic Digestion
14 Topics | 8 Quizzes
1.1 What is anaerobic digestion?
Quiz
1.2 What is biogas?
Quiz
1.3 Methane and Contribution to global warming
Quiz 1
Quiz 2
1.4 Feedstock Materials and Biogas Production
Quiz
1.4.1 Biodegradability of various feedstock
Quiz
1.5 Process of anaerobic digestion
Quiz
1.6 What are the benefits and limitations of anaerobic digestion?
Quiz
1.7 What are the possible applications for biogas?
1.7.1 Cooking
1.7.2 Lighting
1.7.3 Electricity Generation
1.7.4 Cooling
1.7.5 Biomethane Fuel
1.7.6 Thermal Application
2 Digestion Technologies and Types
9 Topics | 8 Quizzes
2.1 Digestion Technologies and Types
2.2 General Classifications
Quiz
2.3 Overview of different digesters
Quiz
2.3.1 Fixed Dome Digester
Quiz
2.3.2 Floating Dome Digester
Quiz
2.3.3 Balloon-Type Digester
Quiz
2.4 Overview of different types of biogas sanitation units
Quiz
2.4.1 Anaerobic baffled reactor with biogas capture
Quiz
2.4.2 Anaerobic Lagoon
Quiz
3 Process Parameters
13 Topics | 12 Quizzes
3.1 The Process Parameters
3.2 Temperature
Quiz
3.3 Feedstock C:N ratio
Quiz
3.4 TS and VS, COD and BOD
3.4.1 Total and Volatile Solids
Quiz
3.4.2 Chemical Oxygen Demand (COD) & Biochemical Oxygen Demand (BOD)
Quiz
3.4.3 pH
Quiz
3.4.4 Organic loading rate
Quiz
3.4.5 Hydraulic and solid retention time
Quiz
3.5 What is biological methane potential, and why is it important?
Quiz
3.6 What is the difference between biomethane potential, methane yield, and methane production?
Quiz
3.7 What is the biogas potential of various substrates?
3.8 How to measure or estimate the biogas or biomethane potential?
Quiz 1.1
Quiz 1.2
Quiz 2
4 Biogas Installation Planning
10 Topics | 2 Quizzes
4.1 Social acceptance
4.2 Feedstock availability
Quiz
4.3 Feedstock quality
4.4 Biogas Plant Design: An Exercise
4.4.1 Potential Biogas Generation, Utilisation and treatment
4.4.2 Sizing of the digester
4.4.3 Sizing of gasholder
4.4.4 Planning Effluent Management
4.4.5 What is to be done if there is no available space for post-treatment?
4.4.6 Planning Sludge Management
Quiz
5 Operation and Maintenance
4 Topics | 2 Quizzes
5.1 Initial Testing
5.2 Startup
5.3 O&M Tasks
Quiz
5.4 Safety
Quiz
6 Sanitation Biogas Plants in Rohingya Refugee Camp
10 Topics | 9 Quizzes
6.1 Biogas Generation
Quiz
6.1.1 Biogas Potential
Quiz
6.2 Use of Biogas
Quiz
6.3 Treatment Performance
Quiz
6.4 Identified Challanges and Possible Solutions
6.4.1 Clogging
Quiz
6.4.2 Accumulation of Condensed Water Within the Gas Pipes
Quiz
6.4.3 Hydrogen Sulphide
Quiz
6.4.4 Gas Leakages
Quiz
6.4.5 Effluent Management
Quiz
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3.4 TS and VS, COD and BOD

Biogas Sanitation 3 Process Parameters 3.4 TS and VS, COD and BOD

It is essential to know the following feedstock characteristics to understand the loading rate, determine the size of the digester, and monitor the adequate quantity of feedstock provided to the digester.

  • Total Solids (TS)
  • Volatile Solids (VS)
  • Chemical Oxygen Demand (COD)
  • Biochemical Oxygen Demand (BOD)
  • pH
  • Temperature
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