demand.
Development of renewable and sustainable energy source
is the best solution to the country’s energy demands [1]. It is
much desirable that the renewable energy to be developed
has no adverse effects on the environment. Surely,
productions of renewable energy from materials that are
readily and locally available are extremely advantageous and
reduce the cost of its production. Environmentally friendly
individuals may choose to compost their food waste to
acquire a useful fertilizer or soil amendment; however, this
process does not allow a means to capture the energy that is
locked up in waste. Many municipal waste management
programs do attempt to harness organic waste energy
through combustion in waste-to-energy plants and methane
collection from microorganism activity in landfills. While
such systems make use of the energy available in food waste,
they do not directly benefit the individuals who produce the
waste, and may also involve additional costs to those
individuals related to collection [2].
Biogas-generating technology is a favorable dual-purpose
technology at present: the biogas generated can be used to
meet energy requirements while the organic residue is a
useful fertilizer. Biogas is a type of renewable energy that
can be produced from the decomposition of animal and plant
wastes and is composed of methane, carbon dioxide and
trace impurities like hydrogen, hydrogen sulfide and some
nitrogen [3].
The production of methane during the anaerobic digestion
of biologically degradable organic matter depends on the
amount and kind of the material added to the system. So,
leftover foods, fruit and vegetable wastes and cow manure
may be subjected to anaerobic digestion for energy
production in a variety of ways. The leading concepts
now-a-days are: single-phase digestion, two phase digestion,
dry fermentation and co-digestion [4].An interesting option
for improving yields of anaerobic digestion of wastes are
co-digestion, which employs a co- substrate that has the
benefit of improving the biogas yields due to positive