Wastewater Treatment Case Studies and White Papers

  1. CleanFlo™ Monoscreen® Case Study

    When the polar bears at the Brookfield Zoo were introduced to their new habitats at the Great Bear Wilderness, they had no idea how much more fulfilling their life would become.

  2. Asset Lifecycle Information Management For Water And Wastewater Networks

    Water and wastewater leaders are unsung heroes. Clean, safe water is essential to human life and to the well-being of the environment, yet it is grossly underfunded. Limited resources lead to deferred maintenance and difficult decisions.

  3. High Turbidity Water Treatment Reached With Mobile Water System

    Starting in 2010, the drinking water plant in Wellsboro, PA, began experiencing high turbidity and algae in the water which caused emergency notices for citizens to boil their water before use.

  4. Valuable Lessons Learned With Unknown Septage

    When SAWS in San Antonio sought to upgrade their septage collection system they faced challenges beyond what might be normally seen in a typical WWTP. By partnering with Huber Technology SAWS was able to navigate through challenges and put together a world class system.

  5. Automatic Dissolved Oxygen System Results In Energy Savings

    Scheid Vineyards, located in Greenfield, California, captures wastewater influent from the winery in three aeration ponds to supply the needed biological oxygen demand (BOD) to treat the effluent prior to being used for irrigation. In 2009, the wastewater plant processed over 8 million gallons of wastewater. The existing aeration system was inefficient and maintenance intensive leading the facility to explore alternative solutions.

  6. Development Of MBR Suitable For Retrofit With Flat Sheet Membrane

    In sewage works of Japan near bay areas, the tightening of restrictions on nitrogen and phosphorus has resulted in greater needs for reconstruction and replacement of infrastructure, to switch from the conventional activated sludge process to the advanced treatment process without newly expanding aeration tanks.

  7. UV System Saves Energy And Reduces Maintenance

    After a 17-year run, a plant’s UV disinfection system was limping toward the finish line. The city needed to identify a replacement UV system that fit into the same channel, offered lower power consumption, and contained a practical ease of maintenance to reduce the amount of labor consumed on the equipment. The new system requires dramatically less power to run while simultaneously streamlining upkeep.

  8. In-Situ Oxygenation System Enables Increase In Capacity For Municipal Wastewater Treatment Facility

    To increase capacity within the existing footprint of a wastewater treatment facility in Michigan, two existing tanks were converted to aeration tanks with pure-oxygen aeration provided by Praxair’s In-Situ Oxygenation (I-SOTM) System.

  9. Jet Aeration Systems: A Tool For Improved SBR Operation

    Sequencing Batch Reactors (SBRs) are a variation of the activated sludge process that combine treatment steps into a single basin. Based on a fill-and-draw method, major phases of the SBR process include a cycle of fill (with or without aeration), react, settle, decant, and idle. Today, successful flow control strategies have made SBRs state-of-the-art technology. SBRs are commonly used today and are especially beneficial for many industrial applications.

  10. Case Study: New Pumps Make Excess Water Removal More Efficient For Power Generation Facility
    The Progress Energy Lee Plant, a power generation facility located in Goldsboro, NC, originally enlisted nine vertical sump pumps to assist in yard drainage. The pumps removed excess water that accumulated from rainfall and storm drains, equipment wash down, and general water overflow, and redirected it to a retention settlement basin. They featured a vertical design, wherein the motor is located above the pump, and a line shafts extends down into the length of the sump. As the pumps aged, they became increasingly expensive to maintain. Plant management began to question the long-term feasibility of efficiently maintaining the pumps to meet the plant's operational expectations