Xylem Wastewater Case Studies

  1. New Generation Pump Clears Clogs At City's Lift Station 2/14/2020

    Frequent clogs forced Waupaca’s Public Works Department to be dispatched on a 24-7 basis. The Flygt N-pump helped improve efficiency and ease blockages.

  2. Advanced Technologies Stop Plant Bypasses 2/14/2020

    Hoping to avoid bypassing 1.6 million gallons of raw sewage into nearby streams, Thief River Falls relied on Flygt pumps “N” technology to maintain consistent flow path through the pump.

  3. 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. 

  4. Sludge Handling In The Sooner State 5/18/2018

    Smaller Oklahoma city upgrades their wastewater treatment plant’s sludge handling system using the latest intelligent equipment. The new pumps went into service in April and May 2017 and the staff is thrilled that they have experienced no clogging.

  5. New Jersey Town Sticks With A Winner 5/1/2018

    A northern New Jersey town decided to upgrade their main station utilizing the same equipment that has provided them with decades of reliable and trouble free service. When replacement options arose, the city immediately elected to stay with Flygt due to their positive experience with the quality and reliability of the equipment, combined with the availability of local service. Read the full case study to learn more.

  6. Successful Trials With Flygt Adaptive Mixing Technology 4/2/2018

    Albion, MI, completed the update of several components of its four-MGD plant in the fall 2017. Afterwards, the plant superintendent became interested in testing the impact that optimizing his mixing might have on other aspects of his conventional activated sludge process with enhanced biological phosphorus removal. Read the full case study to learn how the test showed that there can be dramatic opportunities for right sizing mixer thrust, when the equipment is available to take advantage of it.

  7. Historic Town Remedies FOG Problem 2/21/2018

    Among the pump stations managed by Branford, CT, is a long-term problematic station located at Burban Street. There were two primary problems at this station: 1) clogging from modern day trash and raggy, stringy materials, and 2) fats, oils, and grease (FOG) from a nearby nursing home and restaurants, which accumulate and float on the water surface, resulting in a horrendous mess.

  8. Wet Well Wonder In A Deep Sewer Tunnel 12/7/2017

    This wet well is a critical piece of a system designed to intercept wet weather overflows, and it demands powerful, high-quality pumps to handle the load. Designed to reduce environmental impacts resulting from Combined Sewer Overflows (CSOs) in Columbus, Ohio, the Olentangy-Scioto- Interceptor-Sewer Augmentation Relief Sewer (OARS) is the key component in meeting this goal. This sewer tunnel will intercept wet weather overflows that currently empty into the Scioto River and instead carry the flows to the city’s Jackson Pike and Southerly wastewater treatment plants.

  9. Optimizing Chemical Dosing Reduces Chemical Use While Meeting Effluent TP Limits 11/9/2017

    The city of Black River Falls in Wisconsin used chemical treatment with ferric chloride (FeCl3) to achieve their effluent total phosphorus (TP) permit of 1.0 mg/l. Historically, the chemical dosing rate was manually adjusted on a daily basis based on the measured effluent TP concentration. The plant was upgraded with an OSCAR process performance optimizer control system with phosphorus controller, which uses continuous measurement of orthophosphate. Read the full case study to learn more.

  10. Do More With Less: Integrating Nutrient Removal Control Improves Treatment Capacity And Efficiency 11/9/2017

    Wastewater treatment plants (WWTP) are facing many challenges. Permits on nitrogen and phosphorus in the effluent water are progressively becoming stricter in order to protect surface waters from eutrophication. At the same time, plants are required to reduce both energy and chemical consumption and are often challenged with limited time and staff. In total, they are required to do more with less. In order to meet these challenges, a plant with a Sequencing Batch Reactor (SBR) in Green Lake, Wisconsin was upgraded with an advanced process control system – the OSCAR process performance optimizer with NURO controller.