A Pune-based engineer Priyadarshan Sahahrabuddhe has developed a biofuel plant called Vaayu that helps create cooking gas through organic kitchen waste.
The process is simple, he says, one just needs to feed the kitchen waste to the digestor. The bacteria in the digestor acts on this waste to create biogas which is stored in the balloons-like structures. This biogas is then transported to a pipeline in the kitchen and used as cooking gas.
Until now, his company has installed 220 such machines in society's, individual homes, marriage halls and restaurants. The project, he believes, helps tackle the problem of waste management.