ENERGY RECOVERY

Waste materials hat cannot be recycled can be converted into different forms of energy by using variety of processes. These processes include combustion, anaerobic digestion, gs recovery from landfills, and pyrolysis. pyrolysis is term for the transformation of a substance by the action of heat. Pyrolysis can transform the organic matter in municipal garbage into oil, gas, and carbon. Another example of energy recovery is when biomass is processed to provide electricity.
                                                Some non-recycled plastics, which may contain higher energy value than coal, can also be converted into energy, such as electricity, or into alternative fuels like synthetic gas.