Business Opportunities in Agriculture: 150 Field Interviews (Book)

Parivartana Samsthe - Successfully installs cost effective and compact bio gas plant

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Successfully installs cost effective and compact bio gas plant in four villages in Gulbarga district, Karnataka


Effectual waste management, 80% reduction in burning valuable biomass and 100% stop to burning fossil fuels are the three core advantages of using bio gas plant. It is no more space, cost or time intensive instead easily affordable and manageable by any farmer even with a small land holding. It is the initiative taken by Parivartan Samsthe to make life in villages comfortable by introducing biogas in four villages in Aland taluk, Gulbarga district, Karnataka with grant assistance from NABARD under Rural innovative fund and technical collaboration with NIE Mysore. The entire concept is the brain child of Dr. G.Panduranga, President Parivartan Samsthe. The entire model is being run on kitchen waste but can be effortlessly replaced with farm green waste as well.
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Dr. G.Panduranga

Biogas – “Methane” is produced at rate of 650 liters per day which is sufficient to cook for 2.5 to 3 hours per day. The bio gas produced contains 60% methane and 5% carbon dioxide. One cubic meter of bio gas produces 20,000 kilo joules heat energy. If produced in air tight containers (like plastic drums) the gas produced in the process can be utilized to burn a bio gas stove through connecting pipes.

The compact biogas plant is fabricated using PVC tanks and locally available plumbing materials. "The mini plant mainly has 2 PVC drums of 1000 liter (called digester chamber) and 750 liter( called gas holder drum). Initially 200 kg cattle dung is mixed with 200 liters of water into digester chamber. The gas holder PVC drum fitted with a gas cock is placed inverted in the digester chamber. A pipe of suitable length to reach the kitchen is fixed, which is connected to the biogas special stove placed in the kitchen,” elaborates Dr. Panduranga on the design and structure of the plant. It takes only one day time to install the plant.
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As mentioned at the moment the plant uses kitchen waste hence 200 gm waste flour (from flour mill or waste in the house) is mixed with 400 ml water. It is then loaded through an inlet device designed in the unit. The loading of flour quantity is increased incrementally as 200, 400, 600 and so on for every third day until it reaches 1 kg. During this period the households could get biogas for cooking for 3 hours per day. In the later stage loading of flour mill is reduced to 400 gm, 200 gm and kitchen waste feed stock is increases to 200, 400, and so on. It is continued till it becomes zero quantity flour and 2 kg kitchen waste per day. The gestation period is 21 days, later to which the gas is produced everyday.


The slurry obtained in excellent source of nutrients for the farming. “Farmers have absolutely zero-cost manure available right in their farm premises. There is no need to travel farm distance for purchasing the fertilizer and of course no expenses at all,” asserts Dr. Panduranga.


2 kg starchy/sugary feed stock (kitchen waste) produces about 500 gm methane gas and the reaction (anaerobic fermentation) is completed within 20 hours. When asked about the operational and functional benefits compared with conventional biogas system, he clarifies, "In case of conventional biogas system cattle dung, sewerage etc is used about 40 kg to produce 500gm methane and it takes 40 days to complete the reaction. Whereas the conversion of feed stock to methane in our bio gas is 20 time as efficient as the conventional system and from point of view of reaction time it is 40 times more efficient. Thus the new system is 60 times as efficient as conventional biogas system."
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As the innovation has been successful with fabulous results in future Parivartan Samsthe members plans to install many such plants in rural farms as well as urban homes. He concludes, “Our mini bio gas plant is boon to convert waste into useful cooking gas. This rural innovation has both long term and short term impacts. The short term impacts can be in terms of immediate reduction of expenditure on fuel. Long term benefit includes natural rejuvenation of forest, improve the village forest flora and improve the overall environment of village due to minimizing tree felling. Hopefully it gets replicated across the country!!”


Dr. Panduranga is 1971 agricultural graduate from Agricultural University Dharwad. He has served Karnataka State Agricultural Department for 30 years in different capacities. Post retirement in 2002 he started Parivarana Samsthe along with seven other professionals.


Parivartan Samsthe is Gulberga, Karnataka based organization started in the year 2003. It is engaged in agricultural and rural development. In addition it works with Self Help Groups (SHG) to empower the people residing in rural India.


Contact details:

Parivartana Samsthe

No, 3, Sri Chandrala, Dhyananjaneya Nagar, NGO Colony, Gulbarga-585 102 Karnataka, India

Phone no. 08472-226548, 0997058434

Email: dr.pandurang2006@gmail.com
 
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Business Opportunities in Agriculture: 150 Field Interviews (Book)

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