One plant. Multiple productive uses.
Kerarapon 16 m³ system
A 16 m³ fixed-dome plant feeding a household kitchen, an oven, a water heater, a generator and a chaff cutter from a single digester.
- Capacity
- 16 m³
- Technology
- fixed dome
- Location
- Kerarapon, Kajiado
- Completed
- 2023
- Sector
- farm
- Feedstock
- Cow manure, Food waste
- Applications
- Cooking, Baking, Water heating, Electricity, Chaff cutting
- Technical review
- approved
Client challenge
The homestead was buying cooking fuel while manure accumulated on site and required disposal.
Site conditions
Gently sloping ground with firm soil, adequate space downslope of the cattle boma and a short carrying distance to the kitchen.
Feedstock assessment
Daily cattle manure supplemented with kitchen waste, mixed with water at approximately 1:1 by volume before feeding.
Energy demand
Family cooking, baking, hot water and intermittent mechanical loads for fodder chopping.
Engineering response
A fixed-dome digester with an expansion chamber, sized for the measured daily manure load and the combined appliance demand.
Construction sequence
Setting out, excavation, foundation, dome masonry, gas-tight plastering, inlet and outlet construction, backfilling and pipe installation.
Gas handling
Dome take-off to a main valve, condensate trap at the pipeline low point, H2S filter before the engine, and a manometer for operator pressure checks.
Appliance connections
Household cooker, oven, water heater, generator and converted chaff-cutter engine on a branched low-pressure network.
Slurry or effluent management
Digested slurry overflows to a lined store and is applied to fodder and vegetable plots.
Commissioning
Charged with manure and water, leak tested, first gas flared, then appliances commissioned and the operator trained.
Documented outcomes
Household cooking fuel purchases reduced
Evidence: Client-reported
Plant operating on daily manure feeding
Evidence: Company site observation
Outcomes are labelled by evidence type: measured, company estimate, client-reported or unverified historical claim. Unverified claims are never published as fact.