When we feed the system, the excess digested slurry will fall out through the outlet pipe, which can be collected, diluted and used as organic manure. We can add some weight on top of the gas holder to increase the gas pressure. The gas holder will rise along the guide pipes based on the amount of gas produced. Subsequently, food waste, decomposable organic material and kitchen waste will be diluted with water and used to feed the system. Initially, cow-dung mixed with water will be fed in to the system, which will start the gas formation process. Wait for a day or two before feeding the system, allowing all joints to get cured and become leak-proof. I have removed the gas pipe, so that the joints will get cured without any stress: Additional accessories A single burner bio-gas stove or a Bunsen Burner used in school laboratoriesĬompleted unit. 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. Gas outlet system: Please see Step 4 below for required materials and construction Tools required Do not require many tools here. 32 mm dia pvc pipe: about 25 cm long (fixed on digester tank to act as outlet for digested slurry) 7. 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 50 cm long (fixed inside gas holder tank as a guide pipe) 5. 64 mm dia pvc pipe: about 40 cm long (to be used for feeding waste material) 4. (to be used as Gas Holder Tank) (Make sure the smaller can fits inside larger one and moves freely) 3.

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. 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. 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. 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). 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.

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