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Wasatch, UT

Green-waste composting (1405)

MILE-HIGH GREEN WASTE

Before adopting aerated static pile (ASP) composting with Bioworks’ Airfloor® technology, the Wasatch Integrated Waste Management District (WIWMD) in Layton, UT, relied on conventional windrow composting (CWC), a method with a larger carbon footprint that required 3 to 6 months to produce finished compost. However, after implementing ASP technology in June 2013, WIWMD significantly enhanced its operations, achieving Process to Further Reduce Pathogens (PFRP) in just two weeks and producing a finished compost product in five weeks.

The switch to the ASP system not only improved process management but also addressed odor issues. Previously, CWC operations had to be suspended for a month following over 60 odor complaints. In contrast, after installing the ASP system with Airfloor® aeration technology, WIWMD recorded zero odor complaints during the first four months of operation, even while processing compost mixes with high concentrations of grass feedstock. This technological upgrade also contributed to a reduced carbon footprint and increased the efficiency of the composting process.

Key Benefits:

  • Faster Processing: Achieved PFRP in two weeks and a finished product in just five weeks.
  • Improved Odor Control: Zero complaints in the first four months, even with high grass content.
  • Reduced Carbon Footprint: More efficient than conventional windrow composting.
  • Enhanced Process Management: Consistent, reliable performance with better control of composting parameters.
  • Regulatory Compliance: Met PFRP standards while improving environmental sustainability.