An overview on properties and internal characteristics of anaerobic bioreactors of food waste

Since a large amount of food resources comes to waste when are processing in the factories, recently more attention is being targeted to use anaerobicdigestion.1 Currently, huge amount of organic waste is generated including forest, wood industries, human, animal and agricultural crops. Furthermore they saved solar energy in different forms. This saved energy can be harvested by many ways like biochemical conversion, thermochemical conversion etc and may release CH4, H2, CO, CO2 etc. Treatment of food waste is carried out in a single phase anaerobic digestion chamber in which decomposition of waste arises from anaerobic microorganism.2 Anaerobic digestion is an advantageous way of waste treatment in which both recycling energy and control of contamination in consideration. Anaerobic digestion is defined as the decomposition of biomass by active micro flora in absence of oxygen. Till date, several methods biological treatments and the study results related to organic materials were available. Comparison between aerobic and anaerobic processes shows that later is more usable in treatment due to its low-energy consumption and produced final waste. Therefore, anaerobic processing of industrial wastes with toxic compounds and domestic waste has been showing upwards trends. Achieving the ability of environmental protection and anaerobic treatment along with bioreactors have been taken in consider recently.3