What is biogas?

Biogas is a byproduct of the decomposition of organic matter by anaerobic bacteria.

It is typically composed of 60% methane and 40% CO2. It is similar to natural gas which is composed of 99% methane.

It is a clean and renewable energy that may be substituted to natural gas to cook, to produce vapor, hot water or to generate electricity.

How does it work?

Organic waste is put into a sealed tank called a digester (or bioreactor) . In the absence of oxygen anaerobic bacteria consume the organic matter to multiply and produce biogas.

What type of waste produces biogas?

Any organic waste has the ability to produce biogas: human excreta, manure, animal slurry, fruit and vegetable waste, slaughterhouse waste, meat packing waste, dairy factory waste, brewery and distillery waste, etc.

Fiber rich wastes like wood, leaves, etc. make poor feedstocks for digesters as they are difficult to digest.

How much biogas can I get out of my waste?

1 kg of food/veg waste can produce approximately 200 liters of biogas which is equivalent to about 100 grams of LPG.

Since methane is a potent greenhouse gas, isn’t it stupid to produce biogas?

Methane has a greenhouse gas (GHG) heating factor 21 times higher than CO2.

Combustion of biogas converts methane into CO2 and reduces the GHG impact by over 20 times.

By extracting methane out of waste and using it to produce heat and/or electricity we ensure that the waste will not degrade in an open environment therefore reducing direct methane atmospheric emissions. Moreover, the energy provided by the biogas is likely to displace fossil fuel which is the main contributor to GHG emissions.

Biogas energy is considered carbon neutral, since carbon emitted by its combustion comes from carbon fixed by plants (natural carbon cycle).

How much energy is in biogas?

Each cubic meter (m3) of biogas produces about 6000-6500 KCAL.

What happens to the waste after digestion?

Despite popular belief, the amount of waste going in the digester is almost equal to the amount coming out. However the quality of the waste is altered for the better (no odor, better organic fertilizer rich in micronutrients)

How difficult is it to run a biogas plant?

A biogas plant is like a human. You must feed it every day and feed it the right stuff in the right amount. The biggest advantage is that our biogas plant will take all the rotten, left over and waste food as input to give you useful biogas.

What will happen if I do not feed my biogas plant for a month?

Typically, a biogas plant has living helpful micro-organisms. If you do not feed them for a month, it will reduce in population and move to hibernation. So once you start feeding it again after a month, it will reproduce automatically.

OK I’m interested. Send me info on your technology.

Green connect resource management solutions provides biogas plants to treat waste from 1 kg to 1000 kg per day. Kindly mail us @ info@greenconnectd.in