Introduction: Biogas at Home- Cheap and Easy

Picture of 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

Pls leave a comment

Step 1: Chose the Correct Container

Picture of 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

Picture of 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

Picture of 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

Picture of 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 !

Picture of 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!

Picture of 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

Picture of 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:


awanh2 (author)2018-01-12

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

sarwee (author)2017-11-30

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

AdeyemoS (author)2017-11-28

I love it

sunil kumarp2 (author)2017-10-28

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.

Newel (author)2017-09-04

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

please send the answer to my email

KristiantoA1 (author)2017-05-01

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 ?

MairaR4 (author)2017-04-14

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 a lot foryour kindness

alex-india (author)2017-03-22

Amazing share ! Must do and feedback

Atharva pande (author)2017-02-23

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

lyninsairam (author)2017-01-05

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

khaled tech (author)lyninsairam2017-02-17

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.

gabba1414 (author)2017-01-04

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

bong basilio (author)2016-12-02

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.

Avyakth12 (author)2016-12-02

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

yadu nathK (author)2016-11-03

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

ArtiH (author)2016-09-26

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

GeorgeM196 (author)2016-06-04

2 or 3 dollars to make? The cost of a used barrel with a perfect seal? Here about a $100. Then the pipe and fittings, another $50 or $80. Also different glues work with different plastics, you need to source the right kind especially if you are trying to glue dissimilar plastics. I am looking for practical ideas for a developing country, and a barrel like the one used here is almost impossible to find even if someone can afford it

RickH106 (author)GeorgeM1962016-09-15

Thin hose , fittings . and Silicone Sealant
was the total Purchase cost $20 Us dollars .
PVC pipes replaced by cut plastic bottles .extended with plastic bag

Very low-cost Materials , is all about ... Money is in short supply .
I live in Australia always helping to improve lives in Africa .. .

GeorgeM196 (author)RickH1062016-09-15

Hi Rick,

That sounds interesting, I am trying to visualize how you extend the bottles with bags, and join everything together. Do you have some pictures or a video? I am trying to make things from waste plastic, but now am having a problem with so called biodegradable plastic. I don't know what it degrades into, probably small pieces of plastic. Even some PET bottles are made from biodegradable preforms, and are not identified as such. The way I know the bags are biodegradable is in a couple of weeks they rip. Sometimes I don't know which way to jump.

What other projects are you working on?

RickH106 made it! (author)GeorgeM1962016-09-16

Last month Kampala pipe water was cut of .for 4 days .

Pipe water is very unsafe to drink from the tap .

This system give them all the 100% Pure water they need ..5litrs per day .they don't have to buy drinking water anymore .

Now they have replaced the green leaves with a bucket of bad water ,and get perfect pure drinkable water 100% Pure from Sun distilled water .

RickH106 made it! (author)GeorgeM1962016-09-16

Most of thick plastic ,of industrial deliverie's is recyclable , not biodegradable Extra strong garbage bags are suitable .this plastic can be sealed and make into any type of bags using a hot Iron between sheets of paper ,the edge can be folded for extra seal . A small amount of silicone seal will do a perfect job ..

RickH106 (author)GeorgeM1962016-09-14

HI ..You can replace the barrell

a hole on the ground ,,, use strong plastic bag instead of plastic barrel same .. Or a plastic bag contained inside strong box . soo the bag wont split ..

GeorgeM196 (author)RickH1062016-09-15

Hi Rick, I have seen things like that, even a trench with a long poly tube instead of a bag, but the developing country I am in has a limited selection of affordable materials. I managed to get some used 1,000 Liter plastic tanks with a valve at the bottom and a tight fitting cap so hopefully we can make something practical for about a $100. I don't understand why he says it cost $2 to $3 unless he got confused by the conversion from their currency. Don't you have problems with mice and rats chewing on them? I have seen them chew the insulation off live electrical wires and bucket lids.

Are you familiar with using charcoal in composting toilets and with animal bedding? If not, look up biochar. When we get set up we will do a study about the effects of charcoal on gas production, I can't find any info about that

RickH106 (author)2016-09-14

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 ..

RajasheP (author)2016-09-04

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

MobyD1 (author)2016-04-24

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.

Yonatan24 (author)MobyD12016-08-22

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...

jaunty2 (author)2015-12-12

It looks excellent, but step 8 is missing. I hope this works for a friend in Uganda.

Chitlange Sahas (author)jaunty22016-08-22

I was young at that time. Click, click, publish.... By mistake left it...


mtn190 (author)2016-08-14

Hello i'm Mr Bukky i like your work.....please i want you to give me full details of this project....thanks

Chitlange Sahas (author)mtn1902016-08-14

How exactly could I help you please?
You want what Information?

hello sahas, this is srinidhi from bangalore. Ccan u plsss send me the copy of ur work to my e-mail id??. my dessertation work is on Biomethanation.

E-mail id:


MaximusF1 (author)2016-08-18

Bro can you send me a copy

IdowuA (author)2016-08-01

hello dear. i am Ben from Nigeria. i will like to teach my collegues and friends this method to generate biogas from kitchen waste and animal dung. I will appreciate if I can get more detailed instruction manual on how to make this home made Biogas if possible with video .

Much appreciated

My email addressess

jOker58 (author)2016-07-30

I really like this project I've been looking to do something like this for a while

muthupandirv (author)2016-06-29

nice you done , encorage your friends to do like you and save environment

Kaneisharu (author)2016-06-29

Good day! This is amazing! Can you please email your procedure to

GaothopheL (author)2016-06-21

Please send me the procedure at topslee342@Gmail. Com

MakeShiftMaker (author)2016-06-20

i found the cost to be a little off i admire your ingenuity in tool improvisations (hot rod in place of a hole saw) and just building the system in general i am impressesd bravo

raghavendrav1 (author)2016-06-12

excellent work sir can you please mail this procedure to my gamil

pradeepend (author)2016-06-07

Sir please send me detail how to make Bio Gas plant at below email- ; ph 9944445009

josé antonioc3 (author)2016-04-27

the last picture confuses me, why the paint bucket is "floating". i belive that it must be well atachet and sealed inside the tank. i mean, i believe the tank must be completly sealed, except by inlet pipe, outlet pipe and the vale. if the gas holder thank is floating over the slurry, how much gas it can contain and how much gas scape from digester tank?

Last question, why do you put that bricks over the gas holder tank?

sincerely i hope you can answer. i am very interested in this proyect, but need more information and alternatives to use the cow dung. i live in the middle of the city and can't get it.

thanks for your attention

Abdelali2 (author)2016-04-26

nice work . please can you send me the instraction by emai to .

jamal10 (author)2016-04-24

well done

Andreiafouto (author)2016-04-18

Does this need emptying from time to time?

Andreiafouto (author)2016-04-18

How far above does the waste pipe have to be from the contents inside? If I just use the containers lid does this pipe need to be closed to avoid gas escaping through it?

SurabhiM1 (author)2016-04-08

Dear Sir,

I have no basic idea about dairy farm, But I am planning to open
a cattle farm with 10 cows. Kindly
let me know, What are other way to earn the money such as generating power
and bio gas for supplying to neighbor.


TariraiM (author)2016-04-03

hie bro, my name is Tarirai from Zimbabwe i like the innovation my brother . can you help how can i use your idea suppose i want to use the home sower as a the digester. and how can i connect gas holder to the sower in the event that i need to use for domestic purposes . You may email me at thank you very much domes domesti

TonnyM3 (author)2016-04-03

hello my name is Bosco from Uganda, what i didn't understand is the gas holding container is place with open top? or with a cover?

JamesC325 (author)2016-04-01

What are good & effective alternative house waste if I have no access to cow dung (and it smells, doesn't it?) since we live in city. I like you simple system. Keep up the good work as this will greatly change the way we generate green energy cheaply everywhere with little investment.

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