Biogas usage
Practical Action
The flame from the
cooker is not enough.
Even the light from
the lamp is very dim!
The most likely reason
Not enough gas coming from the digester
Solution
Make the gas nipple bigger
The amount of gas is
reducing day by day.
In a few days time we
might not even
The most likely reasons
1. Gas leaking from the pipe (first check
and make sure)
2. Gas leaking from the lid (first there will
be bubbles in the water over the lid
3. Adding too much or too little raw
material (in the Indian and Chinese
methods).
4. Not mixing the water and the raw
material properly before adding into
the digester (Chinese and Indian
methods).
5. The cow dung solidifying inside the
digester.
6. Sand and pieces of rock entering the
digester.
Solution
Apply a soap/water mixture onto the areas of
concern (the pipe connections). If there are
bubbles then correct the problem.
After you notice this apply another layer of clay.
Compare the amount that you should put in
daily against the amount you currently add.
Make sure you only add the required amount of
raw material.
You should mix the two at a ratio of 1:1 (one
bucket of water with one bucket of cow dung).
Remove the lid and take away this material
completely.
Remove the lid and check the digester with a
stick. If there seem to be a layer of sand empty
the digester completely and fill it again.
7. Cracks in the digester, air leaking from
the walls of the digester.
Empty the entire digester and check this.
Getting assistance from your technical advisor
is suitable at this stage.
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