Alexandria Sanitation Authority  Jobs (Visit website)
Facility - Building Owners
Company Description:

Our plant is an Advanced Waste Treatment (AWT) facility with a design capacity of 54 million gallons per day (MGD). It is located on a 30-acre site on the north bank of Hunting Creek near its junction with the Potomac River. We provide sewage treatment for 350,000 people in a service area of 51 square miles, which includes the City of Alexandria and portions of Fairfax County. The Authority also owns and operates three pump stations and three interceptor sewers.

Current processes include preliminary, primary, and secondary treatments followed by chemical addition (metal salt) for phosphorus removal, sedimentation, filtration, ultraviolet (UV) disinfection and post aeration. Solids processing includes gravity thickening of primary and tertiary sludges, mechanical thickening of waste activated sludge, centrifuge dewatering, prepasteurization, anaerobic digestion and land application.




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