There are different types of biodigester in use. The widely used model is the fixed dome digester buried under the ground. The fixed dome biodigester consists of digester with a fixed nonmoveable gasholder,which sits on top of the digester. In this biogas process,a source of renewable energy is generated such as methane(CH4),bio-slurry,gas for cooking,lightening and much more.
This biodigester size is having from 4m3 to 15m3 with biogas production 800 to 4,000 litters which need to fill the dung from 20kg-100kg per day for the household with 5-15 people.
This biodigester size is having from 2m3 to 3m3 with biogas production 600 to 800 litters which need to fill the dung from 15kg-20kg per day for the household with 3-5 people household.
This new composite biodigester become the popular model for BCs/BCAs and farmer due to it is fast to install and has reasonable price.
This type is for the pig farms (with 600- 4,200 pig heads) connecting with generator produce electricity for pig cooling system- EVAP.
The support and cooperation from the Project Building Adaptive Capacity through the Scaling-up of Renewable Energy Technologies in Rural Cambodia (hereinafter referred to as "S-RET"), and the Ministry of the Agriculture, Forestry and Fisheries (MAFF) to NBP is crucial to achieve the project’s objective and outputs. NBP believes that the project is able to contribute to greater scaling up of the Renewable Energy Technology (RET) esp. biodigesters in Cambodia among rural potential farmers. Project feedback demonstrates that the plant owners are interested in NBP technology with multiple benefits received from biodigesters esp. the connecting generators instead of consuming the fuels and the biogas heating lamp.
Water pumping machines have been modifying (convert from gasoline to biogas) with the VW Gas Company.
Biogas heating lamp was very useful for chicken warming/brooding purpose.