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Providing
Innovative Solutions
for Our Clients
since 1965
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Projects - Avon - Vail ATAD Facility
Avon, Colorado, USA
Dayton & Knight Ltd., in association with
Montgomery Watson of USA, undertook pre-design, detailed design and
commissioning for the Avon ATAD facility, which combines sludge treatment for
both the Vail and Avon Wastewater Treatment Plants.
The ATAD is designed for a capacity of 80,000
equivalent population.
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Eagle River Water
and Sanitation District owns and operates the Vail and Avon Wastewater
Treatment Plants, which has a combined Wastewater flow of 16,300 m3/d
(4.3 US mgd).
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The Avon site is restricted. ATAD reactors are
small by comparison to conventional aerobic digesters. The ATAD
process produces Class A biosolids, which fit in the Vail Valley Biosolids handling program.
This process reduces bio-mass by 35% and volatile content by 65%. Volatile solids reduction
is generally accomplished even at low average degree day (470
degree-day). The dewatered product meets
pasteurization requirements as per EPA 503 Rule, and reaches an average 26% dry cake off the
centrifuges.
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