Patapsco Wastewater Treatment Plant
Client: City of Baltimore, MD
Location: Baltimore, MD
Start Date: December 2010
End Date: December 2012
Contract Amount: $116 million
Construction, a wholly owned subsidiary of Balfour Beatty
Infrastructure, Inc., is building the world's largest fixed film
denitrification system at the City of Baltimore’s Patapsco Wastewater
Treatment Plant on the Patapsco River, a tributary of the Chesapeake
Bay. This is one of several expansions and upgrades at the plant that
will occur during the next three years. Once completed, it will be the
world's largest installed fixed-film denitrification system.
$116 million facility will be completed in 2012 and will expand the plant’s
capacity from 73 to 81 million gallons per day. Fru-Con will install
and commission the proprietary TETRA supplied denite system, which is
designed to reduce nitrate- nitrogen to 0.5 mg/l and total suspended
solids to 6 mg/l at the plants average flow rate resulting in an 80 percent
reduction in the plants discharge of total nitrogen and phosphorous
into the bay.
The construction includes the placement of over
30,000 cy of reinforced concrete supported on 200,000 lineal feet of
pipe pile ranging in sizes from 12 inches to 24 inches in diameter.
Mechanical piping, process equipment, controls and electrical work
fill the completed structures along with foundation work for the enhanced nitrogen removal facility.