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How Landfill Gas Extraction assists
in Reducing Global Warming


Biomass & Landfill Sites

Renewable energy relates to energy which is derived from resources that are essentially inexhaustible and thus can be used indefinitely, and are replenished rapidly by natural processes. Renewable energy sources include; Wind power, Solar power, Wave/Tidal power, Geothermal power, Hydro-power and Biomass.

Organic material, such as carbohydrates, fats, proteins and minerals, are synthesized by plants when utilizing the sun's energy during the photosynthesis process. This organic material is often referred to as Biomass and it is a renewable energy source, as it is primarily derived from the sun. The chemical energy in biomass gets passed on through to animals and humans when they eat plants. Sources of biomass include plant matter, such as wood and crops and animal matter, such as manure. Some portion of garbage (municipal solid waste), such as lawn clippings, leaves and food scraps, are also examples of biomass sources.

The most common method of releasing the stored chemical energy is by burning biomass, for example burning wood waste or municipal solid waste, which releases the energy in the form of steam to heat homes or for generating electricity. However, this method releases vast amounts of Carbon Dioxide (a Greenhouse Gas) into the atmosphere.

Others methods of releasing the chemical energy in biomass include the fermentation of corn or sugar to produce ethanol, or using vegetable oil, greases/fats to produce Biodiesel. Ethanol and Biodiesel are also known as Transportation fuels, as they can be combined with petroleum fuels or used on their own.

Lastly, biomass can also be converted into Methane Gas, another usable form of energy. The decomposition of biomass on municipal waste sites (landfill sites) releases a biogas or landfill gas called methane. This gas, if released into the atmosphere, contributes to the Greenhouse Effect and Global Warming. However, via waste-to-energy plants, methane can be captured from landfill sites and processed to create electricity.

The benefits of methane extraction from landfill sites include:
  • A significant decrease in odour emanating from the site.
  • Minimizing the Greenhouse Effect and Global Warming by capturing the gas.
  • Capturing the gas stops it from escaping into the atmosphere.
  • Improved conditions for plant life to regenerate.
  • Significantly improving the visual impact of the site with re-vegetation.
  • Less of a dependability on the consumption of fossil fuels to generate electricity.

 

The Greenhouse Effect & Global Warming

This short video clip explains the Greenhouse Effect and identifies factors which have brought about Global Warming. It also further details, how LGP's core business assists in reducing Global Warming.