| Over millions of years, natural processes in the earth transformed organic matter into fossil fuels, which are not renewable. There are many renewable sources, such as sunlight, wind, and biomass. Agricultural wastes represent an important source of bio-energy. The anaerobic digestion process is one of the technologies used to produce energy. The effluent from this process can be used to produce a stabilized and odor free fertilizer (compost). Biogas can be used for heating and agitating during the biomethanation process. Solar energy can additionally be introduced in order to increase the net energy production. The utilization of solar energy in production of biogas from agricultural wastes is an important issue for Egyptian agricultural and environmental sectors. |
