Waste to Energy Conversion (Biogas, Bio-CNG)

Waste to Energy Conversion

Waste-to-energy (WtE) or energy-from-waste (EfW) is the process of generating energy in the form of electricity, and/or heat from the primary treatment of waste, or the processing of waste into a fuel source. WtE is a form of energy recovery. Most WtE processes generate electricity and/or heat directly through combustion, or produce a combustible fuel commodity, such as methane, methanol, ethanol or synthetic fuels.

Waste to Energy Conversion

We are dealing in Bio-Methanation process by which organic material is microbiologically converted under anaerobic conditions to biogas and further it is compressed to Bio-CNG.Bio-CNG is a renewable fuel that produced by purifying raw Biogas. The raw biogases are obtained from Municipal solid waste, Food Waste, Agricultural waste, Sludge etc. through microbial activities in the anaerobic digestion chamber. These raw biogases obtained from anaerobic digestion chamber contain Methane and various other gases such as CO2, H2S, N2 and Ammonia etc. along with it.

Biogas containshigh methane content (40–70%) that can further be upgraded to natural gas quality (75–99% methane content). The upgraded biogas can be injected into a natural gas grid or used as a transport fuel. Further, pure methane is extracted by purifying these raw biogases which will further used as a Bio fuel termed as a Bio-CNG. The quality and quantity of the Bio-CNG are highly depends upon the type of waste used as a feedstock. As per the studies, it is observed that food waste yield higher percentage of methane in the biogas and produce higher amount of biogas generation. Further, it is also observed that food waste in combination with other subtract such as agricultural waste, sludge from STP, and grasses etc. can produce huge amount of methane rich biogas.