NUTRIENT REMOVAL RESOURCES

• Community Wastewater Treatment Options Expand With Decentralized Treatment Approaches

  Sometimes conventional wastewater treatment solutions won’t work for a given application, and sometimes a nonconventional approach is simply the better choice for high-quality, cost-effective performance.

• Riviera Utilities WWTP At Wolf Creek Upgrades To State-Of-The-Art AquaNereda® Aerobic Granular Sludge Technology

  The Riviera Utilities Wastewater Treatment Plant at Wolf Creek serves its community of approximately 20,000 residents and had been operating a biological treatment system consisting of a 35-year-old extended aeration oxidation ditch process. The plant was rated for 2.0 MGD and needed to expand capacity to 3.5 MGD due to growing demand. Instead of taking the traditional approach of adding an additional oxidation ditch to increase treatment capacity, Riviera Utilities had the desire to “future-proof” the plant and prepare to meet more stringent effluent requirements, including Biological Nutrient Removal (BNR) that were anticipated to be enacted in the future.

• Biolac Long Sludge Age Treatment Combined With MRI Plate Settlers Achieves Low Nutrient Limits

  The Tri-Lakes Wastewater Treatment Facility located in Monument, CO, receives flow from the Woodmoor, Palmer Lake, and Monument Sanitation Districts. The plant discharges treated effluent to Monument Creek, which is within the Fountain Creek Water Shed. Originally, the Tri-Lakes facility consisted of a three-cell lagoon. This was replaced by a two-basin Biolac Wave-Ox system, which was installed in 1990 and later upgraded in 1998 to a three-basin system with a capacity of 4.2 MGD.

• Complete Grit Removal And Sludge Screening Solution Protects And Optimizes Plant Performance In Conway, Arkansas

  An aging wastewater treatment plant had the potential to impact the water quality of a 6,700 acre man-made fishing lake near Conway, Arkansas. The city needed a new treatment facility that was consistent with pending permit limits.  Read the full case study to learn more.

• Side-Stream SDOX® Systems Enhance Biological Function And Treatment Capacity

  Wastewater from the meat processing facility is treated using a sequence batch reactor and an aerobic lagoon that discharges to surface waters following treatment. The facility replaced surface aeration equipment with two, 350-HP the “no-splash,” side-stream SDOX® systems retrofitted to the treatment basin. Read the full case study to learn the results.

• Wastewater Nitrogen Is Causing Ecological Havoc, But The Necessary Innovative Solutions Exist

  The water quality damages associated with excessive nitrogen discharges to our surface and groundwaters that result in life-threatening harmful algae blooms (HAB), the loss of shellfish and finfish, and the degradation of our groundwater drinking water aquifers are now ubiquitous in the U.S. and worldwide. Wastewater nitrogen discharges are typically the elephant in the room when the sources of nitrogen are quantified. Septic nitrogen discharges, in particular, are the primary cause of water-quality/ecological degradation in many, especially coastal, areas.

• Addition Of inDENSE & AvN At Water Reclamation Facility Results In Drastic Changes In Plant Performance And Operations

  In the interest of utilizing their existing infrastructure, the City of Pueblo, CO, evaluated technologies that would help intensify their existing process. WWW worked with their consulting engineer and identified two biological process modifications. Selective wasting through gravimetric selection using the inDENSE™ technology and advanced aeration control using AvN™. 

• Anammox Sidestream Deammonification Process Allows Plant To Reduce Capital And Infrastructure Costs

  Pierce County’s main goal was to reduce the discharge of nitrogen to Puget Sound while also reducing plant operating costs while in nitrogen removal mode. After upgrading, the new system continues to remove greater than 80 percent of ammonia and 75 percent of total inorganic nitrogen, equating to a reduction of over 400 tons per year of nitrogen loading to Puget Sound.

• Municipality Looks To Expand Plant Capacity While Reusing Existing Systems

  Sharjah Municipality of the Untied Arab Emirates (U.A.E.) was requiring to treat more and more flow despite having very little space for new treatment systems. They were looking at wanting to expand their plants No. 4 & No. 5 plants to meet new total nitrogen limits and try to do so by having to reuse the existing systems. This type of upgrade would save on cost as well as space at the plant.

• Water Stressed City Looks At Opportunities To Reuse And Recycle Tertiary Treated Municipal Sewage For Cooling Tower Application

  Bengaluru, being a water stressed city, was looking at opportunities to reuse and recycle of tertiary treated municipal sewage for cooling tower application in a nearby power plant. Jakkur STP, being a 10 MLD plant based on conventional anaerobic + conventional activated sludge, was identified to supply about 15 MLD of recycled water for the power plant. The entire plant was designed and retrofitted as two process trains of 7.5 MLD. Read the full case study to learn more about why Integrated Fixed Film Activated Sludge technology (IFAS) was determined to be the best suitable upgrade.

• IFAS System Produces High Quality Effluent In East Central Kansas

  The City of Emporia, in East Central Kansas, recently experienced an increase in population and more stringent effluent permit requirements resulting in a strained wastewater treatment plant. Emporia retained the services of a local engineering firm to evaluate the current and future needs of the system and recommend an economical, sustainable, and effective solution. After evaluating several options, World Water Works’ Integrated Fixed Film Activated Sludge (IFAS) conformed to all the requirements and was selected.

• AquaSBR® Replaces 60-Year-Old Treatment Plant

  The Moab Water Reclamation Facility (WRF) was initially constructed in the late 1950’s to provide primary treatment of domestic wastewater for the Moab area. However, the plant could no longer keep up with the higher flows and loading due to population growth and rising tourism. In addition, with aging infrastructure and the new permit cycle in sight, upgrades to the biological treatment were necessary to ensure full compliance. Read the full case study to learn more.

• 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.

• Community Wastewater Treatment Options Expand With Decentralized Treatment Approaches

  Sometimes conventional wastewater treatment solutions won’t work for a given application, and sometimes a nonconventional approach is simply the better choice for high-quality, cost-effective performance.

• Riviera Utilities WWTP At Wolf Creek Upgrades To State-Of-The-Art AquaNereda® Aerobic Granular Sludge Technology

  The Riviera Utilities Wastewater Treatment Plant at Wolf Creek serves its community of approximately 20,000 residents and had been operating a biological treatment system consisting of a 35-year-old extended aeration oxidation ditch process. The plant was rated for 2.0 MGD and needed to expand capacity to 3.5 MGD due to growing demand. Instead of taking the traditional approach of adding an additional oxidation ditch to increase treatment capacity, Riviera Utilities had the desire to “future-proof” the plant and prepare to meet more stringent effluent requirements, including Biological Nutrient Removal (BNR) that were anticipated to be enacted in the future.

• Biolac Long Sludge Age Treatment Combined With MRI Plate Settlers Achieves Low Nutrient Limits

  The Tri-Lakes Wastewater Treatment Facility located in Monument, CO, receives flow from the Woodmoor, Palmer Lake, and Monument Sanitation Districts. The plant discharges treated effluent to Monument Creek, which is within the Fountain Creek Water Shed. Originally, the Tri-Lakes facility consisted of a three-cell lagoon. This was replaced by a two-basin Biolac Wave-Ox system, which was installed in 1990 and later upgraded in 1998 to a three-basin system with a capacity of 4.2 MGD.

• Complete Grit Removal And Sludge Screening Solution Protects And Optimizes Plant Performance In Conway, Arkansas

  An aging wastewater treatment plant had the potential to impact the water quality of a 6,700 acre man-made fishing lake near Conway, Arkansas. The city needed a new treatment facility that was consistent with pending permit limits.  Read the full case study to learn more.

• Side-Stream SDOX® Systems Enhance Biological Function And Treatment Capacity

  Wastewater from the meat processing facility is treated using a sequence batch reactor and an aerobic lagoon that discharges to surface waters following treatment. The facility replaced surface aeration equipment with two, 350-HP the “no-splash,” side-stream SDOX® systems retrofitted to the treatment basin. Read the full case study to learn the results.