How to build biogas digesters
Dug with cement is built around, then the top seal, leave a hole of about 50cm*50cm, to produce biogas materials to facilitate the join, then seal the fermentation to produce biogas, biogas can be used for cooking guide out of plastic pipe, fire etc.!But now there is a special mold, only need to dig a pit directly into the mold can be put into the production of biogas,
The previous practice is directly to find a piece of land, dug into round or square holes, the volume can be according to their own needs, small 3m*3m*2m, look at your own needs,
Can now be used to make plastic digesters, cheap, the state subsidies. Very hot.
