Largest Municipal ATAD — Class A Biosolids at Middletown WWTP
Faced with excessive odor complaints, looming regulatory action, and an overall concern with the long-term viability of its existing biosolids management plan, the City of Middletown commissioned a biosolids utilization study that resulted in a new sludge stabilization facility at its 26-mgd wastewater treatment plant.
The new 2nd generation Autothermal Thermophilic Aerobic Digestion (ATAD) facility boasts a processing capacity of 34,000 dry pounds per day and is the largest in North America. Since coming online in May 2009, the facility has reduced solids volume, eliminated odor and regulatory complaints, and continues to practice beneficial reuse via land application.
Keywords: Autothermal Thermophilic Aerobic Digestion (ATAD); Biosolids; Biosolids Management Plan (BMP); Digestion; Middletown; Process to Further Reduce Pathogens (PFRP); Process to Significantly Reduce Pathogens (PSRP); Sludge; ThermAer
Document Type: Research Article
Publication date: 01 January 2010
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