Nutrient Removal Resources

41. WRF Hosts Capitol Hill, State-Of-The-Science Briefing On Harmful Algal Blooms 9/27/2019

    To make informed decisions about how to limit exposure to cyanotoxins, utilities need information to select and implement a comprehensive and technically sound management approach. The Water Research Foundation (WRF) has been actively involved in developing effective innovative solutions to help utilities address this challenge and protect public health.

42. Aerobic Treatment Unit (ATU) System Design Tips And Operations Variables 1/23/2019

    Providing a suitable environment for microorganisms to treat wastewater is what aerobic treatment units (ATUs) are all about. These advanced systems outshine alternatives on tight lots where there is no room for conventional treatment and on sites with poor soils, shallow vertical separation distances to limiting conditions, and horizontal setback restrictions. Some systems can be designed for the treatment of high-strength wastewater or where total nitrogen removal is required.

43. Aerobic Digester Reduces Nutrient Return And Improves Energy Efficiency 1/8/2019

    Many operators and engineers are turning to performance optimizers and controls automation to enhance treatment processes and reduce operating costs. 

44. Understanding And Coping With Struvite/Vivianite Formation In WWTPs 12/21/2018

    Based on wastewater properties, various types of mineral buildup can affect wastewater treatment plant (WWTP) piping. With their impacts on plant energy efficiency and potential restriction of throughput capacity, keeping pipes free-flowing is an important aspect of WWTP operations. Here’s guidance for coping with two common problems associated with phosphorus concentrations in wastewater — struvite and vivianite.

45. EPA Uses Floating Vegetated Islands To Remove Excess Nutrients From Water 12/4/2018

    Harmful algal blooms — the overgrowth of algae in water — are a major problem across the nation. Blooms occur when excess nutrients (nitrogen and phosphorus), combine with sunlight, and warm temperatures in water bodies. They can cause severe, negative impacts on aquatic ecosystems, the economy, and human health.

46. World's Largest Denitrification Plant Helps Tampa Bay Reduce Nutrient Pollution 10/2/2018

    Nutrient pollution is getting worse in many estuaries throughout the United States, especially those on the heavily populated East Coast.

47. Denitrification Filters Meet Strict, Varying Nitrogen Limits 10/1/2018

    The cities of Littleton and Englewood, CO, just south of Denver, share a wastewater plant — the Littleton/Englewood advanced wastewater treatment (AWT) plant located in Englewood. The 7886 m3/hr (50-mgd) Littleton/Englewood AWT plant serves more than 300,000 residents in the Denver metropolitan area. The facility also receives sewage from 21 districts within a 75 square mile service area. Plant effluent is discharged to the Denver metro area’s major watershed, the South Platte River.

48. Award-Winning Design Helps WWTP Protect Chesapeake Bay Watershed 9/26/2018

    Arlington County’s Water Pollution Control Plant (WPCP) in South Arlington, VA, is located on 35 acres of land squeezed into a commercial/residential neighborhood less than a mile west of Ronald Reagan Washington National Airport. The facility treats flows from nearly all of Arlington. In addition, nearly 20 percent of the plant’s flow comes from neighboring localities such as Alexandria, Fairfax County, and Falls Church. Effluent from the plant is discharged into Four Mile Run to the south, which feeds into the Potomac River and, ultimately, the Chesapeake Bay.

49. Methanol Dosing Technology Helps Denitrification System Pass Rigorous Performance Test 9/25/2018

    In 2007, Greenville, SC-based Western Carolina Regional Sewer Authority (WCRSA) conducted a rigorous performance test on a new tertiary treatment technology to assess its ability to effectively remove nitrate-nitrogen (NO3-N) without using excess amounts of methanol at its Lower Reedy Wastewater Treatment Plant (WWTP).

50. Denitrification Technology Helps Wastewater Treatment Plant Meet China's Stringent Class 1A Standards 9/25/2018

    China has implemented more stringent environmental standards in recent years. Local environmental protection departments now require urban wastewater treatment plants to apply strict enforcement measures to meet effluent discharge standards.