Composting and Anaerobic Digestion: Review on Sustainable Methods for Management of Food Waste

Abstract

Presented study is about the management of food waste which is today’s one of the major issue all around the world. The improper management process makes food waste more problematic as it creates various environment pollutions and harm human health. The two methods for better management are discussed in detail which is sustainable because these are eco-friendly, cost effective and harmless to human. These methods are anaerobic digestion and composting. In both methods the decomposition of organic waste is done by the microorganism. In anaerobic digestion it is done in the absence of oxygen while in composting oxygen is necessary for the degradation process. The product obtain from anaerobic digestion is the biogas which is used as fuel and 
digestate which is used as bio fertilizer.  From compost we get compost as product that is a natural fertilizer. So, both the methods have advantages without any harm. Various factors which affect these methods are also discussed. Both the method discussed are the way of recycling and reuse of food waste which is commonly organic in nature and can be decomposed by microorganism and give value added end product.