Biogas at Home- Cheap and Easy

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Posted in WorkshopEnergy

Introduction: Biogas at Home- Cheap and Easy

About: Making things with my hands makes me happy! I vision a world where children experience the thrill of making things and less of addictive Dopamine producing social media.

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


Pls leave a comment

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

190 Comments

Hello sir i make a biogas plant of 20 litre but methane gas is not formed.second thing is thai if i do feeding once a time mean if i do feeding today with 1:1 and third thing is that when i do feeding second time PLZ help me i am waiting for your reply thanks alot sir

I started my bio gas project at home a few weeks ago. I experience gas forming but the gas does not burn. I have released the gas a few times but yet no result. What should I do ? E mail reply to daya.weerasinghe@gmail.com

Hello there guys and earth savers. Im starting to build one. My question is, after filling the digester with initial mixture, how many days will i wait until it will create a flamable gas? Secondly how much mixture should i add everyday after the initial gas production to continue the methane production if my tank is 100liter capacity ? Thrirdly im using quail dung, will this work? Thankyou.

please can goat and sheep droppings be used instead of cow dung?

please send the answer to my email

dzideditsogbe@gmail.com

Hi, I plan build one, but I read that you need some kind of methane purifier so you're not going to be dizzy or dead because of CO2s it produce along the methane(I'm not going to use just cow dung), any suggestion ?

thanks so much.i'm working in a eco green house in the caribean and ilike to have more information about biogas. please email me at rdm.mrr5@gmail.com.thanks a lot foryour kindness

Amazing share ! Must do and feedback

But can we use a 2 litre bottle as the digester tank and balloon s as biogas collecter??? Please reply

Hi sahas. ths is sai i need u r help bro .i make a same type digester 20 days back in my home.now its produce the gas but its not flameble(ignite) i can't understand plz help me.my mail id: lynin.sairam@gmail.com

1 reply

Biogas contains a varying ratio of Co2 which prevent the ignition of the methane and this ration can be removed by passing the gas through limewater but I recommed Monoethanolamine because it is more efficient but little bit expensive

and also there is hydrogen sulfide whch is believed to be harmful for machines and it can also dissolve in any basic solution mentioned above.

if anyone could email me an instructional video or the further explanation on the procedure that would be amazing! also how long does it take to create a flammable gas? I am doing this for a school science fair and need more detailed instructions. thanks, my email is christensenga@carbonschools.org

Hello there guys and earth savers. Im starting to build one. My question is, after filling the digester with initial mixture, how many days will i wait until it will create a flamable gas? Secondly how much mixture should i add everyday after the initial gas production to continue the methane production if my tank is 100liter capacity ? Thrirdly im using quail dung, will this work? Thankyou.
renier_basilio@yahoo.com

HI,
i have a doubt.
for the digester tank,
can we use a five liter bottle?
I'm asking just for school project.

hello sir the digester tank which you are showing in picture is which size? i mean 20 ltr,30ltr or 50 ltr.for it we need cow dunk.but i don't have cow dunk.first time i can manage but i live in city area.every time it is not available so what to do

I tried making biogas plant but unable to generate methane. How first time digester tank pushed to start working?

Those plastic Barrels are very expensive in Uganda , out of reach for many people

We have build several using this method .

Bur we replaced the barrel ,with a hole on the ground ,and a strong plastic bag .

it has large capacity and produce more gas .... And the top of bag act as a gas storage tank ..

I like u sar u r project plz give that information send to my email address
rajashe9535@gmail.com
full details sto and light connection plz plz sar

Don't click on this link. It is one of the most boring commercial adverts that I have ever listened to, it just goes on and on. It wants to sell you a bio plant. It doesn't want to show you how to make one. Just an advert like most of the other pop ups that appear on your screen. None are helpful and none offer anything free. Yes this is a positive comment. It's aim is to positively help others from wasting their time on this link.

1 reply

I've flagged his/her problem as spam, but in the future, don't reply to these comments. Just report them as spam and move on...