Nutrient Removal Case Studies and White Papers

  1. Envirex® Energy Efficient Activated Sludge Process Meets Stringent Regulations While Minimizing Costs

    The Town of Elkton, Maryland, located in Cecil County near the head of the Chesapeake Bay, has a population of approximately 15,000 and an average elevation of 9.1 m (30 ft). Elkton is an economically strong, stable community that is very conscientious about environmental issues. In an effort to protect the Chesapeake Bay aquatic life, new stringent wastewater effluent regulations were implemented requiring very low nutrient levels in wastewater treatment plant discharge.

  2. The Benefits Of Reusing Wastewater

    Since water is an essential element in food or beverage operations, reusing it can reduce a business’s water usage ratios, help meet sustainability goals, lower supply risk and contribute to cost savings, making it a top priority for many companies today.

  3. Headworks Bio Commissions First IFAS System In Costa Rica

    In late 2013, Headworks Bio Inc. was awarded a contract with General Contractor Soluciones Tecnicas Ambientales, S.A. (SOLAMSA) to supply an IFAS system to upgrade the existing Ptar El Roble conventional activated sludge (CAS) treatment facility in Puntarenas, Costa Rica — the first IFAS installation in the country.

  4. Sturbridge POTW: Greater Capacity For High Flow Events, Enhanced Clarification For New Regulations

    Sturbridge, Massachusetts historically suffered from periodic blooms of filamentous bacteria that caused bulking in the secondary clarifiers of their three activated sludge package plants.

  5. Concord, Massachusetts WWTP - A Low-Cost, 20-Year Solution To Ever-Tightening Phosphorus Limits

    Prior to 2007, Concord, Massachusetts wastewater treatment plant operated under a NPDES permit that allowed a seasonal phosphorus limit of 0.7 mg/L. But with the issuance of a new five-year permit with a phosphorus limit of 0.2 mg/L and the probability that future limits could reach as low as 0.05 mg/L, Concord needed a treatment solution that would be reliable and cost-effective today and over the long term.

  6. Sustainable Nutrient Removal With IFAS

    With the AnoxKaldnes Hybas IFAS system, the City of Cocoa Beach, FL, met the challenges of tighter nutrient regulations, site constraints, and operating conditions. And the project met the city’s goals to meet these challenges with a simultaneous decrease in energy use. On top of that, the city did not need to increase operations time or staffing to meet these goals. With the AnoxKaldnes Hybas IFAS system, the city is now meeting stricter nutrient regulations – and doing it sustainably.

  7. AnoxKaldnes Hybas™: Meeting New Limits

    In 2008, AnoxKaldnes Hybas™ designs were completed by Veolia for the upgrade of the Field’s Point Wastewater Treatment Facility to meet new seasonal effluent limits for TN and TIN.

  8. A Radical Solution: Lagoon Management Utilizing Natural Biological Processes

    The city of Davisboro is located in Washington County, Georgia. The 2012 census population was 1,793 at the 2013 census. The population includes Washington State Prison, approximately 1,500 prisoners.

  9. VLR® System For Biological Treatment Case Study

    Economic development has its price and sometimes calls for major upgrades to a community’s wastewater treatment facilities.

  10. New And Innovative Rare Earth Technology For Low-Level Phosphorus Removal

    With environmental regulations continuing to restrict the discharge of phosphorus from wastewater treatment facilities, traditional methods of phosphorus removal are proving inadequate.