Types of biogas plants

TYPES OF BIOGAS DIGESTERS
Fixed dome biogas plants : This is a dome shaped with immovable gas holder and a displacement pit. ...
Floating drum biogas plants : This consists of underground digesters and movable gas holders. ...
Balloon plants : This consist of a rubber bag or balloon and it combines the digester and gas holder.

1. Lecture 4 Types of Biogas Plants – Advantages and Disadvantages

2. Biogas Plant

3. Classification of Biogas Plants Continuous and Batch types - based on mode of working Dome and Drum types - based on plant design Movable drum type Ex: KVIC Fixed dome type Ex: Janata / Deenbandhu

4. Continuous Biogas Plant A single digester Materials / feed – charged regularly One / more partitions (Single / Multi chamber ) Single chamber – entire conversion of organic matter into biogas Double chamber – acidogenesis and methanogenesis stages Produce gas continuously Small digestion chambers Lesser periods of digestion

5. Batch type Biogas Plant Empty Plant – feeding – digestion – emptying Features - gas production is intermittent - several digesters / chambers - good for long fibrous materials - addition of fermented slurry to start the digestion

6. Dome and Drum Types Floating gas holder - KVIC Fixed dome digester - Deenbandhu / Janata

7. Floating Drum Type Biogas Plants Schematic of KVIC Biogas Plants

8. IARI Plant Nepal Biogas Plant

9. Recommended Method of Joining Gas holder to Main Gas pipe

10. Biogas Plant Adopted by BIS

11. Fixed Dome Type Biogas Plants Chinese Biogas Plant Developed in China Gas is stored in upper part of Digester

12. Fixed Dome Type Biogas Plants Janata Biogas Plant

13. Fixed Dome Type Biogas Plants Deenbandhu Biogas Plant Developed by AFPRO

14. Gayathri Model Government Implements Factory, Bhuvaneshwar Eliminates the use of brick dome - pre-fabricated fibre-glass reinforced plastic Minimises cement

15. TNAU Model Four designs - fixed dome of Janata type with a flat bottom - Nepalese version with curved bottom and ferro cement dome - cubical - cylindrical Reduction in retention time - 15 days - periodic addition of micro-organisms

16. Krishna Biogas Plant Shivsadan Renewable Research Institute, Maharashtra

17. Manipal Model

18. Spherical Biogas Plant Developed by TERI, New Delhi Scum formation

19. ASTRA Model Centre of Applications of the Science and Technology in Rural Areas - IISC, Bangaluru

20. Belur Math Model Swami Vimuktananda at Ramakrishna Mission at Belur Math

21. NEERI Model Night soil Periodic sludge removal

22. Bajwa – KVIC Model Digester Bamboo strips Mild Steel round bars LDPE sheets Gas Holder HDPE sheets

23. Jyoti top loaded Digester Jyoti Solar Energy Institute at Vallabh Vidyanagar (Gujarat) Scum alleviation Eliminates the need for fine shredding and drying of the residues

24. Jwala Biogas Plant AMM Murugappa Chettiar Research Centre, Madras.

25. Mud Jar Biogas Plant Centre of Science for Villages, Wardha

26. Kachra Biogas Plant K. P. Goswami - PAU, Ludhiana Oversized agricultural residues Single type of feedstock

27. Flexible Biogas Plant Swastik , Pune

28. Pragati Model

29. Reference Mittal, K.M. 1996. Biogas system: principles and applications. New age international (P) Ltd., New Delhi . P.No : 57-92.