Biogas at Home- Cheap and Easy

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Introduction: Biogas at Home- Cheap and Easy

Hi there, I am Sahas chitlange, aging 14, from India. here is my homemade cheap and easy to build mini Biogas plant. It burns for approx. 20-30 mins on a bunsen burner. you can add anything from your kitchen waste ( Exept Onion peels and eggshells). In 12 hours the Gas is ready for use. It is very easy and cost effective to build (only 2-3 dollars) and gives many useful products.

the end products of this system are:
1) Methane : (Can be used as a fuel)
2) Slurry     : (the spent slurry is exellent manure)

The main components oof this system are:

1)  Inlet pipe
2) digester tank
3) gas holder tank
4) slurry outlet pipe
5) gas outlet pipe


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Step 1: Chose the Correct Container

You will have to chose a correct size container which will act as a digester tank. My one is liters tank. I got it from scrap.

Step 2: Make Holes

Make holes in the tank for Inlet and outlet. For this I took a old iron rod and heated it to make holes. CAUTION: rod is really very hot.

Step 3: Fix the Inlet and Outlet Pipes

Glue the Inlet pipe and the Outlet pipe with any water proof adhesive. 

Step 4: Making the Gas Holder Tank

I took a paint bucket of 20 lts for making a gas holder tank. this tank holds the gas produced. The tank is overturned and fixed with a valve used for plumbing purposes.

Step 5: Time to Mix the Cow Dung !

mix the cow dung (5kg for 50 liters) and add water to  make a fine slurry. Now put the slurry in the digester tank.

Step 6: Almost Finished!

Put the gas holder tank overturned in the digester tank after adding the slurry . REMEMBER: open the valve while putting the gas holder tank. the mini plant takes 10-15 days for the first time to get output. For the first time, the gas in the tank wont burn as it contains Carbon Dioxide gas, if fortunately it burns then good or wait for the second time. You can detect how much gas is there in this system, the gas holder tank will rises up as the gas is produced.  

Step 7: Working Photos

The photos of the system working are provided....... the heat is so much that it melts a thin sheet of tin in just 2 mins!!!! if you like this i'able please like and comment....

Step 8:

3 People Made This Project!

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4 Questions

hello, thanks alot for your training.

we live in city not in village.we have not cow dung.can we use 2 or 3 kilogram garbages home for making biogase?

Hi Sahas, I am in India, in Karnataka and someone ask me to help. I saw you create a biogas, it is possible to get in touch? Or you can help us to create with us? Thanks for your response. Anja

Did you cover the inlet pip and the outlet pip?

Hi good day my name is Ernest from Cameroon I'm a serious guy aim at doing something useful to my self and also a graduate from agric school now my question sir pls help and teach me on how to build a homemade boigas

2 Comments

Hi Sahas, I am in India, in Karnataka and someone ask me to help. I saw you create a biogas, it is possible to get in touch? Or you can help us to create with us? Thanks for your response. Anja