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Heritage Complex
2662 Riva Road
Annapolis, MD. 21401
(410) 222-7500

 

 

Department of Public Works - Bureau of Engineering 
  
 

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Broadwater Water Reclamation Facility ENR

Information
Project ManagerKen Wiswall
Phone number410-224-1270
ContractorsHoward Robson, Inc
Project Investment$9.7 million
Notice to ProceedApril 2012
Completion DateJune 2015
 
Updates
Dec. 201395% complete
 
DPW Customer Relations
410-222-7582 
pwcust00@aacounty.org
 
 
 
 
 
 
 

 

Background

This is one of seven Enhanced Nutrient Removal (ENR) projects that the County is pursuing in compliance with the State’s Bay Restoration Program. When complete, nitrogen concentrate levels will be reduced from 8mg/L to 3 mg/L and phosphorus from 2 m/L to 0.3 mg/L.

Project

The current Virginia Initiative Treatment Process at the plant was based on past nutrient removal goals. The new design uses a step-feed process followed by denitrification filters.  Existing reactors will be modified to introduce wastewater into several different locations within the reactors and to improve reliability during maintenance shutdowns. A new intermediate pumping station will convey flow to new denitrification filters to optimize nitrogen/phosphorus removal.

Benefits

  • Meet pollutant load limits set in the State's Bay Restoration Program.
  • Significantly reduce nitrogen released after treatment process from 8 mg/L to 3 mg/L.
  • Significantly reduce phosphorous released after treatment process from 2 mg/L to 0.3 mg/L.

Project Status

95% complete.
 

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