Construction Details of Biogas Plants
This section provides detailed information on materials and devices used in the construction
of biogas plants:
• Checklist for construction
• Agitation
• Heating
• Piping systems
• Plasters and Coats
• Pumps
• Slurry equipement
• Underground water
Checklist for building a biogas plant
1. Finishing the planning, i.e. site evaluation, determination of energy demand and
biomass supply / biogas yield, plant sizing, selection of plant design, how and where to
use the biogas, etc., in accordance with the planning guide
2. Stipulate the plant’s location and elaborate a site plan, including all buildings, gas
pipes, gas appliances and fields to be fertilized with digested slurry
3. Draft a technical drawing showing all plant components, i.e. mixing pit, connection to
stabling, inlet / outlet, digester, gas-holder, gas pipes, slurry storage
4. Preparation of material / personnel requirements list and procurement of materials
needed for the chosen plant:
• bricks / stones / blocks for walls and foundation
• sand, gravel
• inlet / outlet pipes
• metal parts (sheet metal, angle irons, etc.)
• gas pipes and fittings
• paint and sealants
• gas appliances
• tools
• mason and helper
• unskilled labor
• workshop for metal (gas-holder) and pipe installation
5. Material / personnel assignment planning, i.e. procedural planning and execution of:
• excavation
• foundation slab
• digester masonry
• gasholder
• rendering and sealing the masonry
• mixing pit - slurry storage pit
• drying out the plant
• installing the gas pipe
• acceptance inspection
6. Regular building supervision
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