ACIDOGENIC OFF GAS DIVERSION: A KEY SOLUTION OF TWO STAGE ANAEROBIC DIGESTION PROCESS FOR FOOD WASTE TO BIOENERGY

Food waste from households and commercial sources such as canteen, cafeteria and restaurant are usually disposed off in landfills. Limited space and environmental impacts viz generating greenhouse gases and polluting groundwater table are some of the major concerns of food waste disposal in landfill. However, bio processing is a promising alternative for the treatment of food waste due to its high organic content and the potential to recover value added products like biogas and soil conditioner. Two stage anaerobic digestion systems is one of the developed technology in anaerobic digestion system where more energy can be recovered from waste material. But due to its complexity and energy loss researchers need to find probable solution to this and lots of research is going on now a day to improve its energy production rate. Acidogenic off gas diversion is one of the most prominent technology acquire attentions recently. In our discussion we will discuss various prospects of this technology to increase food waste degradation rate.