NUTRIENT REMOVAL RESOURCES

• Supporting Innovations To Reduce Nitrogen Pollution From Septic Systems

  Septic systems are common in coastal marine communities on the East Coast of the United States. Septic systems consist of subsurface wastewater treatment structure and use a combination of natural processes and technology to treat residential sanitary waste and greywater from bathrooms, kitchen drains, and laundry. Partially cleaned wastewater is discharged from septic tanks into drain fields, where the water is further treated through biological processes as it travels through gravel, soil, and can eventually reach groundwater. Groundwater linkages with surface waters can then transport any nutrients and contaminants that are present in discharge directly into coastal waters.

• AquaNereda® Aerobic Granular Sludge Technology

  The AquaNereda® Aerobic Granular Sludge (AGS) Technology is an innovative biological wastewater treatment technology that provides advanced treatment using the unique features of aerobic granular biomass. An aerobic granular biomass is comprised of compact granules that provide advantages compared to other secondary treatment processes.

• Abbottstown Retrofitted A Flow-Through System With An AquaSBR® System To Meet Stringent Effluent Requirements

  The Abbottstown-Paradise Joint Sewer Authority was incorporated in 1973 and utilized a continuous flow activated sludge system with an average daily design flow of 0.21 MGD. At that time the plant was only required to reduce total suspended solids (TSS) and effuent ammonia to required levels to serve the area population of about 2000. Due to urban growth and increased storm flow runoffs, the plant was in need of an expansion and upgrade by the late 1990s. 

• AquaDiamond Cloth Media Filters Achieve 0.1 mg/L Total Phosphorus Limit

  With the current national emphasis on restoring the water quality of America’s urban waterways, the City of Brockton, Massachusetts, Advanced Water Reclamation Facility (AWRF) wanted to stay ahead of the regulatory cycle – in particular, phosphorus discharge limits set forth by the National Pollution Discharge Elimination System (NPDES) program of the United States Environmental Protection Agency (U.S. EPA). For this region of the country, the U.S. EPA has proposed total phosphorus (TP) discharge limits of 0.1 mg/L.

• Integrated Solutions Drive Resource Recovery And System Resiliency

  Traditional approaches or wait-and-see tactics, which at times can save the day, too often result in missed opportunities for incremental improvements that could act as building blocks of a long-term strategy. Integrated solutions can reveal this strategy road map for a resilient and reliable water infrastructure system.

• How To Utilize Electrocoagulation For Efficient Phosphorus Removal In Wastewater

  In this article, we will discuss what phosphorus is, the effects of elevated phosphorus levels on an ecosystem, and how innovative electrocoagulation technology can be sustainably used for effective phosphorus removal in wastewater and water sources.

• Your Sewage Is Valuable Muck

  A world without phosphorus is a world without life. But phosphorus is a finite resource, so researchers are recovering it from sewage.

• Technologies To Meet Smaller Footprint And Stringent Nitrogen And Phosphorous Requirements

  The Buxahatchee Wastewater Treatment Plant in Calera, Alabama was built in 1960. It upgraded in 1985 to a 0.75 MGD capacity extended aeration system with integrated clarifier and traveling aeration bridge for nitrification.

• Sidestream Enhanced Biological Phosphorus Removal Made Easier

  Some excellent progress has been made in recent years on sidestream enhanced biologic phosphorus removal, but a current project promises to advance the practice even further.

• AquaSBR® System Treats High Strength Vegetable Processing Waste

  In early 1993, Birds Eye Foods was faced with a difficult decision, to construct a new wastewater treatment facility or to retrofit their existing flow-through extended aeration treatment system