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Landfill Gas

1-tonne (or approximately 2,200-pounds) of degradable trash produces about 400-500 cubic metres (106,000-132,000 gallons (approximately) of landfill gas. As a result the gas emissions from landfill sites must be constantly monitored for many years after the sites have stopped accepting rubbish.

Landfill gas is a complex mix of various different gases created by the action of micro-organisms within a landfill.

Landfill gas is approximately 40% to 60% percent methane (CH4), with the remainder being mostly carbon dioxide (CO2). Trace amounts of other volatile organic compounds comprise the remainder (<1%). These trace gases include mainly simple hydrocarbons.

Landfill gases are the result of three primary processes:

  1. Evaporation of volatile organic compounds (e.g., solvents)
  2. Chemical reactions between waste components, and 
  3. Microbial action, especially methanogenesis.

The first two processes depend to a great extent on the nature of the waste.

The primary process in most landfills is the third process whereby anaerobic bacteria decomposes organic waste (i.e.anaerobic digestion) to produce biogas, which consists of methane and carbon dioxide together with traces of other compounds.

Despite the heterogeneity of waste, the evolution of gases follows well defined patterns. Formation of methane (CH4) and Carbon Dioxide (CO2) takes approximately six months after depositing the landfill material. The evolution of gas reaches a maximum after about 20 years, and then declines over the course of time.

 At TMC Fluid Systems, we offer a complete line of ATEx and Explosion-Proof blowers specifically designed for use to mitigate landfill gas.

News/Events 

  1. Difference between a Turbo and Positive Displacement Blower
  2. The Difference between Methane and Natural Gas
  3. First Dairy Biogas Project in Connecticut
  4. Does Renewable Natural Gas Have a Future in Energy?
  5. Biogas Offtake Opportunities For Digesters
  6. Wisconsin Dairy Begins Production of Renewable Natural Gas
  7. Anaerobic Digestion Sector Forming a Clearer Picture
  8. Brightmark to Expand Western New York Dairy Biogas Project
  9. Biogas - The Energy Wonder That's Under Our Noses
  10. Power Generation Achieved by a Self-Assembled Biofuel Cell
  11. Less Carbon Dioxide from Natural Gas
  12. Project Uses Renewable Electricity for RNG Production
  13. Smithfield Hog Farm Provides Natural Gas to Missouri City
  14. From Waste to Gas
  15. Gas Clash Threatens Australian Export
  16. Maximizing Opportunities of Anaerobic Digestion from Wastewater
  17. Catalyst to Speed up Conversion of Biomass to Biofuel
  18. How It Works: Ethanol
  19. Anaerobic Digestion - the Next Big Renewable Energy Source
  20. Anaerobic Additions
  21. Three (3) Tech Solutions for Modern Landfills
  22. The Costs and Benefits of Anaerobic Digesters
  23. Bacteria Farts Power Wastewater Plant in Fort Wayne
  24. Europe’s First Poultry Manure Biogas Plant
  25. Electricity Using Pig Manure
  26. $38-Million Biodigester coming to Grand Rapids
  27. Biochar Could Benefit Anaerobic Digestion of Animal Manure
  28. Getting More out of Anaerobic Digestion
  29. Biogas prevents 20 million tonnes of CO2 emissions per year
  30. Converting to green gas grid ‘could be vital’

 

For additonal reading, please visit us at: News Worthy

Difference between a Turbo and Positive Displacement Blower