Saturday, 6 April 2013

Types of Biomass

Scientists recognize four types of biomass:

  • Wood and agricultural products: This consists of so-called ‘home-grown' products such as wood logs and chips etc. It is important to note that almost any biological matter can produce biomass energy. Agricultural biomass come from waste products such as fruit pits, corn cobs etc.
  • Solid waste: This is everyday waste / ‘garbage' that can be used to produce energy. It is easily burnt and many plants are already using this method of generating energy.
  • Landfill gas: This is methane gas that is produced during the decaying and rotting process of biological matter. Landfills are artificial environments for these processes to take place, but are just as effective in generating gas that can compete successfully with the so-called ‘natural gasses'.
  • Alcohol fuels: Liquid fuels such as ethanol and methanol are produced using biological matter such as wheat, corn and potatoes. Once again, this is done during the decaying and fermentation processes.

    Sources of Biomass

    There are 5 distinct sources of biomass: Garbage, Wood, Waste, Landfill gases and Alcohol fuels. The biggest source of biomass currently is garbage. The day-to-day waste of households hold the biggest potential for biomass energy as it is already habit to incinerate garbage. Wood comes in at second place with the so-called ‘black liquor' its biggest contributor. Black liquor is the waste product of the pulping process.
    Hot on its heels is waste with it main contributors being municipal solid waste (MSW), manufacturing waste and landfill gas. In the last place are the liquid fuels such as ethanol and methanol which are the result of the fermentation of certain plant types such as corn and sugarcane. Together these sources of biomass have the potential to produce significant amounts of energy that could successfully replace the use of fossil fuels such as coal as a source of energy.

    How Biomass energy works?

    The process of producing biomass energy starts with the process of photosynthesis in plants. When plants absorb sunlight, the process starts with breaking down the components of sun, air and water into products that the plant uses to grow and thrive. One waste product of the process is oxygen which the plant releases into the air. This is why plants are so important as they "clean" the air of carbon dioxide and release oxygen back into the air.
    The next step comes when the plant dies and becomes a waste product. As a waste product plant matter (as well as animal waste) can be collected and burned to generate energy. Because these products are all completely natural, the waste product from the incineration process is carbon dioxide which can easily be absorbed by other, living plants. The carbon emissions are greatly reduced and in many cases not even produced.

    Omega Green Energy

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