Nutrient Removal Case Studies and White Papers

  1. Case Study: First Municipal-Industrial Water Reuse Project In Virginia!
    7/3/2006
    Hampton Roads Sanitation District was created in 1940 to reduce pollution in the Chesapeake Bay. It currently serves a population of approximately 1.6 million with nine regional wastewater treatment plants in Hampton Roads and four smaller plants on Virginia’s Middle Peninsula. HRSD set the goal to reuse its treated wastewater for nonpotable purposes in the 1980s. An oil refinery located next to their York River Treatment Plant approached HRSD in 1996 to supply reclaimed water for the refinery’s cooling and process water. Previously, the refinery utilized increasingly expensive potable water and upgrading its own treatment facilities was too large an investment. In December 2000, HRSD signed a 20-year agreement to provide the refinery with 0.5 MGD of reclaimed water
  2. White Paper: Biological Nutrient Removal Microbiology Metabolic Pathways of Biological Nutrient Removal
    4/3/2006
    Biological Nutrient Removal (BNR) is critical for the preservation of our lakes and streams... Large amounts of waste products are passed through our sewage treatment systems on a continuous basis...
  3. Case Study: Real-time Continuous Nitrate Monitoring Provides A Window On Nutrient Loading In Lake Pontchartrain
    3/9/2006
    Louisiana's Lake Pontchartrain Basin lies at the mouth of the Mississippi Delta and squarely in the sights of water quality experts from around the world. The Lake Pontchartrain Basin is an esturarine system that has been significantly disturbed by the construction of the Mississippi River Gulf Outlet in the 1960s as well as agriculture, logging and development in the area. The lake's increasing salinity and shrinking wetlands have garnered significant attention, as has the nitrate-laden water rushing past the basin through the MRGO just below Pontchartrain's southern shore
  4. AquaSBR® System Achieves 96% BOD Removal At Rutter's Dairy
    12/14/2005

    Rutter's Dairy, located in York, Pennsylvania is operated as a pretreatment system prior to discharge to the municipal sewers. Before the installation of an AquaSBR system, Rutter's Dairy was discharging its wastewater directly to the municipality. Like many other food processors throughout the United States, Rutter's Dairy was assessed high municipal surcharges when wastewater BOD5 and TSS exceeded 300 mg/l

  5. Case Study: Optimizing Biological Phosphorus Removal From An AquaSBR® System
    1/10/2005
    Wastewater Treatment Plant located in Middlebury, Vermont treats domestic and industrial waste received from a local dairy and a brewery. Its original treatment system consisted of a flow-through activated sludge process with primary clarifiers, anaerobic digesters, and a four-train Rotating Biological Contactor system.
  6. Case Study: Optimizing Biological Phosphorus Removal From An AquaSBR® System
    1/10/2005
    Wastewater Treatment Plant located in Middlebury, Vermont treats domestic and industrial waste received from a local dairy and a brewery. Its original treatment system consisted of a flow-through activated sludge process with primary clarifiers, anaerobic digesters, and a four-train Rotating Biological Contactor system.
  7. WWTP Upgrade Increases Treatment Capacity And Improves Effluent Quality

    In recent years, the robust growth of residential and commercial development in the Outer Banks of North Carolina has put a strain on many of the wastewater services in the area. The Monteray Shores WWTP in Corolla, at the northern end of the Outer Banks, was no exception.