fbpx

More Efficient Anaerobic Digestion

04.16.2015

Nestlé’s Fawdon factory in the UK is using a new anaerobic digestion system to turn chocolate and sugar confectionery waste from the site into renewable energy and clean water.

The system involves mixing rejected chocolates and sweets that are not suitable for sale with waste residues such as starch and sugar and partially dissolving them with waste liquids from the site’s cleaning processes to make a ‘chocolate soup’. This mixture is fed into an airtight tank where anaerobic digestion occurs.

The by-products of this process, including biogas, a renewable gas comprised largely of methane and carbon dioxide, can be used to contribute towards the site’s energy demands.

This technique has been used in agriculture and industry for centuries, but the Fawdon system has been adapted to handle a high volume of solid and liquid waste within a short time.

“The system allows us to add tougher residues like starch-based compounds to the process, along with reject product and other materials,” says Inder Poonaji, Nestlé UK and Ireland’s head of sustainability.

“As long as the material is biodegradable, the anaerobic conversion process can take place. The waste we are converting here would otherwise be disposed of externally.”

Article cited from: http://goo.gl/H0vSmo

 

News/Events 

  1. Waste No Waste: Time to Embrace Biogas
  2. Is Big Gas finally learning to love biogas?
  3. We need to get behind Renewable Natural Gas
  4. Difference between a Turbo and Positive Displacement Blower
  5. The Difference between Methane and Natural Gas
  6. First Dairy Biogas Project in Connecticut
  7. Does Renewable Natural Gas Have a Future in Energy?
  8. Biogas Offtake Opportunities For Digesters
  9. Wisconsin Dairy Begins Production of Renewable Natural Gas
  10. Anaerobic Digestion Sector Forming a Clearer Picture
  11. Brightmark to Expand Western New York Dairy Biogas Project
  12. Biogas - The Energy Wonder That's Under Our Noses
  13. Power Generation Achieved by a Self-Assembled Biofuel Cell
  14. Less Carbon Dioxide from Natural Gas
  15. Project Uses Renewable Electricity for RNG Production
  16. Smithfield Hog Farm Provides Natural Gas to Missouri City
  17. From Waste to Gas
  18. Gas Clash Threatens Australian Export
  19. Maximizing Opportunities of Anaerobic Digestion from Wastewater
  20. Catalyst to Speed up Conversion of Biomass to Biofuel
  21. How It Works: Ethanol
  22. Anaerobic Digestion - the Next Big Renewable Energy Source
  23. Anaerobic Additions
  24. Three (3) Tech Solutions for Modern Landfills
  25. The Costs and Benefits of Anaerobic Digesters
  26. Bacteria Farts Power Wastewater Plant in Fort Wayne
  27. Europe’s First Poultry Manure Biogas Plant
  28. Electricity Using Pig Manure
  29. $38-Million Biodigester coming to Grand Rapids
  30. Biochar Could Benefit Anaerobic Digestion of Animal Manure

For additonal reading, please visit us at: News Worthy

Difference between a Turbo and Positive Displacement Blower