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Mini Bio-gas plant using food waste, decomposable organic material and kitchen waste

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Picture of Mini Bio-gas plant using food waste, decomposable organic material and kitchen waste
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I have been searching for some method of using the food waste, decomposable organic material and kitchen waste efficiently, and came across information on producing bio-gas from organic waste.

The bio-gas produced from food waste, decomposable organic material and kitchen waste, consisting of methane and a little amount of carbon di oxide is an alternative fuel for cooking gas (LPG). Also, the waste materials can be disposed off efficiently without any odor or flies and the digested slurry from the bio-gas unit can be used as an organic manure in the garden.

Components of the Bio-gas Plant

The major components of the bio-gas plant are a digester tank, an inlet for feeding the kitchen waste, gas holder tank, an outlet for the digested slurry and the gas delivery system for taking out and utilizing the produced gas.

This project is also useful for students to have a hands-on learning experience in constructing a Mini Bio-Gas Plant, using locally available material.

Material Required:

1. Empty PVC can 50 ltrs capacity: 1 No. (to be used as Digester Tank)
2. Empty PVC can 40 ltrs capacity: 1 no. (to be used as Gas Holder Tank) (Make sure the smaller can fits inside larger one and moves freely)
3. 64 mm dia pvc pipe: about 40 cm long (to be used for feeding waste material)
4. 32 mm dia pvc pipe: about 50 cm long (fixed inside gas holder tank as a guide pipe)
5. 25 mm dia pvc pipe: about 75 cm long (fixed inside the digester tank as a guide pipe)
6. 32 mm dia pvc pipe: about 25 cm long (fixed on digester tank to act as outlet for digested slurry)
7. M-seal or any water-proof adeshive
8. Gas outlet system: Please see Step 4 below for required materials and construction

Tools required

Do not require many tools here. A hack saw blade for cutting the cans & pipes and a sharp knife for cutting holes on the cans are all the tools we need.

Additional accessories

A single burner bio-gas stove or a Bunsen Burner used in school laboratories
 
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SyedI33 days ago

can i fix outlet in bottom so that slurry get out fast and where solid goes

can you explain scientific facts behind it please

antoniraj (author)  SyedI32 days ago
If you fix your outlet at the bottom, you will drain out the entire tank. Moreover the digested slurry gets lighter and raises up to the surface whereas the undigested particles stay at the bottom
teshnat4 days ago
Sir I am very happy to say that my biogas is a burnabol but they have one reason after a few second fire is stopped sir tell me what can I do more
antoniraj (author)  teshnat2 days ago
Add more weight on the tubes to get some pressure. Also make sure no outside air is getting mixed while filling the tubes
teshnat3 days ago
sir I am very happy to say that biogas burnabol now but I have one problem after few second fire is stopped
teshnat3 days ago
Sir I am very happy to say that my biogas plant now is burnable but I have small kind of problem after a few second a fire is stopped tell me sir what can do more
beruchan8 days ago

Hi Sir I would like to make a mini biogas plant for home use but there is little cow dung available. Can I use little cow dung and feed the system vegetables or do I need to feed the system cow dung again? Thank you sir.

antoniraj (author)  beruchan6 days ago
You need to feed cow dung during starting only. Afterwards you can use kitchen waste and all types of garden weeds. No need to feed cow dung afterwards. If it is available you can use cow dung along with other wastes
Thank you for the help sir.
ShwetaK29 days ago
antoniraj (author)  ShwetaK26 days ago
I could not see any comments here, it is blank
leohood7 days ago

ok sir, but will slurry be able to come out from this small space?

leohood8 days ago

sir, i have two containers, and the difference in there dia is 1cm only so they fit accurately leaving 5mm space on both side. so is it ok to use them?

antoniraj (author)  leohood8 days ago
The difference is very small. You can use them but make sure the gas tank does not get strangled with the digester tank, mostly during using the gas. The gas tank may raise up when the gas is produced but has problem when utilizing the gas to get down. You can try with about 40 to 50 kg of weight on top of gas tank to get more pressure. If you find the gas is not burning properly then add more weight
NripendraS9 days ago
ShwetaK29 days ago
teshnat12 days ago
Sir I have put it some weight on tube but biogas is not burnable I check the biogas from the direct valve see this picture and i put in some kitchen waste I don't know that what can I do
IMG_20150620_190847.jpg
antoniraj (author)  teshnat12 days ago
Don't try like this... there are chances of the gas exploding and causing injury.

How do you drain out the slurry from the drum..? Is there any chance of outside air getting mixed with biogas through the inlet or outlet ? Check them first
teshnat13 days ago
Sir you have bio gas stove pictures please send me pz
IMG_20150620_000559.jpgIMG_20150620_000613.jpg
antoniraj (author)  teshnat12 days ago
Put some weight on the tubes to get more pressure. Here are the pictures of Biogas stove. Do not worry, your biogas will burn
001.JPG002.JPG003.JPG005.JPG006.JPG
teshnat13 days ago
Sir you have bio gas stove pictures please send me pz
teshnat13 days ago
this is my biogas plant it'not a burnabol what can I do for this help me it's a be flammable
IMG_20150620_000559.jpgIMG_20150620_000613.jpg
teshnat14 days ago
sir I will disappointed becaus After a week gas tube filled with biogas, but this gas not burnable please tell me in detail what can I fo for this.the biogas will be flammable
antoniraj (author)  teshnat13 days ago

Don't worry, your biogas will burn. Keep some weight on the tube to get more pressure and use a Biogas stove

teshnat14 days ago
release from the ball valveI 4or5 time but biogas is not flammable
antoniraj (author)  teshnat13 days ago

what type of burner or stove you are using ? Biogas will not burn in normal stove used for LPG. You have to use a special stove made for burning Biogas or a Bunsen burner used in laboratories.

teshnat14 days ago
release from the ball valveI 4or5 time but biogas is not flammable
teshnat15 days ago
actually sir I will store the gas in car tyres tube its can be worked how many time oxygen gas carbon dioxide gaso open from ball valveb a day and how many cow waste to put in the drum 220 leaders please tell me in details
antoniraj (author)  teshnat14 days ago
Use about 1 to 1.5 kilogram of waste in your 220 liter drum per day. You can store the gas in car tyre tubes with proper arrangement for connecting the gas pipe line from the plant
teshnat16 days ago
sir I will make biogas in drum there's not a burning why please reply me
antoniraj (author)  teshnat15 days ago
the gas initially produced will not burn as it is mixed with lot of impurities. Release the gas three to four times from the gas holder then you will get burnable gas.

Also put some weight on top of the gas holder. Methane is lighter than air. Putting some weight on top will increase the gas pressure
Hi I want to make this plant at my home daily usage so please give me to produce more biogas formula for big size tank and how to tilt center pip line in this red tank you mentioned by the picture

Please send the information for my mail I'd n.victorharish@gmail.com
antoniraj (author)  victorharish16 days ago
please go through the attached files sent to your mail
Hi I want to make this plant at my home daily usage so please give me to produce more biogas formula for big size tank and how to tilt center pip line in this red tank you mentioned by the picture

Please send the information for my mail I'd n.victorharish@gmail.com
Hi I want to make this plant at my home daily usage so please give me to produce more biogas formula for big size tank and how to tilt center pip line in this red tank you mentioned by the picture
Dear sir
I want to try to see if i can make at home. Can you please send files to my email kuchibhotla.ramakrishna@gmail.com
Thanks
Ramakrishna
antoniraj (author)  RamakrishnaK18 days ago
please see attached file sent to your mail
DiomedesS22 days ago

por favor enviame el archivo de diseño para una feria de ciencias en mi colegio

Diomix29@gmail.com

antoniraj (author)  DiomedesS22 days ago
Please see attached file send to your mail

Por favor, ver archivo adjunto enviar a su correo
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