Bio fuels are fuels that are derived from biological materials, mainly through the decomposition of biological materials. They are renewable fuels derived from biological matter like biogas, bio-diesel and methane. Bio fuels can exist as solids, liquids and gasses.
Bio fuels are can be produced directly from plants or indirectly from industrial, domestic and/or agricultural wastes. Ways in which bio fuels can be generated include but is not limited to: Burning of dry organic wastes like regular household waste materials, industrially and agriculturally generated waste materials, the fermentation of wet agricultural waste like animal dung in the absence of oxygen, fermentation of sugar/starch/carbohydrate containing crops to produce ethanol etc.
Bio fuels are also categorized into four major groups. These groups include:
The first generation: consisting mainly of bio fuels derived from vegetable fat/oils, animal fats/oils, starch, sugar etc. Examples of first generation bio fuels include biogas, bio diesel and vegetable oil.
The second generation: made up of bio-fuels gotten from waste biomass.
The third generation: made of bio fuels that are algae derived.
The fourth generation group of bio fuels are produced by a process where specially-raised/reared micro-organisms are used to work on CO2 to generate fuel.
Using Bio fuels is certainly a great way of reducing over dependence on fossil fuels that have a very unpredictable and unusually price. Also with the dangers non renewable fuels pose on our enviroment I see no reason why we would still want to continue using these damaging fuels.
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