HOW TO SET UP A BIOGAS PLANT

[SSEBADDUKA RONALD]

Since I am from a third world country, I figured you could help me start my biogas project using economical means.i have over 120 pigs on my farm and i need to generate enough biogas to light the entire farm, and for cooking and possibly to run the water pump. Please be kind enough to give me your advice on how i can do this

[Johan Carels]

Dear Ronald,
Only small quantities of biogas can be yielded out of manure: max 20 to 25 m3 biogas per ton pigmanure. So it is necessary to increase a potential bogasproduction by means of adding
"green" biomass like green grass, vegetables, fruitwaste, cereal waste, vegetable oil wastes,.....
A good mix is 20% manure and 80% biomass. So it will be important to be able to get everyday
also biomass added besides manure as feed for the digestor.
Do know that a quantity of 120 pigs only produce about 150 tons of manure (solid and liquid) per year.
This means that in your situation you would need to add yearly about 500 tons of biomass to get some economical quantity of biogas produced. In this situation about 6m3 to 9m3 of biogas could be achieved per hour; which would be the fuel for a little gas engine of max. 15 to 20 kWe.h
Which would produce so about (6 x 2kWe.h) or 12 kWe.h . You could use the heat of the engine to warm up the digestor constantly to about 37°C.
You would have enough electricitiy to light the entire farm and you could use some of the produced biogas for coocking ( but then less kWe would be produced).
The round (concrete) and isolated digestor size would be : Diameter 5m and high 5 mtr.
Hope this will enable you to start planning your project?
K rgds
Johan Carels
Belgium

[Pavel Severilov]

We offer small and medium biogas installations. We have own original technology with low costs. You can read about this at http://www.biogas.vn.ua.