Wastewater Treatment Case Studies and White Papers

  1. Belt Dryer Is A Game-Changer For The Sludge Handling Process

    A wastewater plant uses an activated sludge secondary process that utilizes a biological process that introduces microbes as soon as the flow enters the plant.

  2. Fluence Aerators Improve Lagoon Aeration at Recycled Paper Plant

    Pronal, a recycled paper plant, produces craft paper. The plant produces an average flow of 14,000 m3/day (3.7 MGD) of wastewater with high contents of Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Suspended Solids (TSS).

  3. The Basics Of Disinfection

    From utility water to wastewater, whether used in industrial processes or for drinking, disinfection plays a prominent role in providing safe and useable water. Water free from pathogens and other microorganisms ensures processes run efficiently and people are kept safe from disease. By Harland R Pond, Business Development Manager – Water Treatment

  4. Avoiding The Deadly Legacy Of Hydrogen Sulfide

    Workplace fatalities are devastating to families, friends, and employers alike, and they are especially tragic when resulting from a preventable incident. Whether it be a lapse in safety judgement, a lack of proper monitoring equipment and protocol, or the pervasiveness of human error, employers must always be attentive to factors that could lead to severe worker injuries or death.

  5. How The Industry Can Take On Wipes In The Waste Stream – And Win

    This is the first of a three-part series examining wipes in the waste stream. This first installment looks specifically at the growth of disposable wipes usage within the last decade.

  6. Organic And Nutrient Monitoring For Industrial Process Optimization

    Beyond community drinking water treatment and wastewater treatment plants dealing with effluent regulatory requirements, many industries also need to concern themselves with organics and/or nutrient monitoring in source water, process flows, or effluent. Here are several ideas for how choosing the right analyzer technology can help optimize both the performance and costs of industrial processes.

  7. How Do You Know If Your Ozone Contacting System Is Well Mixed?

    Mixing is something that is often taken for granted when designing systems for water and wastewater treatment. Perhaps “taken for granted” is too harsh a term. Let’s instead say that while designing a treatment unit operation or process, mixing as a phenomenon is automatically assumed to occur — an assumption that forms the basis for process controls, performance guarantees and measurement methods and locations.

  8. City Of Tacoma, Washington Continues To Choose Polyblend® Dry Polymer Preparation Systems After 25 Years Of Reliable, Consistent Performance

    Serving over 200,000 ratepayers, the City of Tacoma operates two award-winning wastewater treatment plants. The Central Wastewater Treatment Plant and the North End Wastewater Treatment Plant are considered state-of-the-art, but operate differently.

  9. ICEAS SBR Technology Improves Effluent Water Quality For St. Joseph WWTP

    St. Joseph Sanitary District No. 1, near La Crosse, WI, operated a wastewater treatment plant (WWTP) that served approximately 1,000 residential customers.

  10. A Small Town With Big Challenges

    Aqua America water treatment plant in Tiffin, Ohio, was built in the 1920s and is situated on the Sandusky River. The plant processes 3.4 million gallons per day and was facing challenges of producing high-quality drinking water. A full measure of seasonal variety, combined with the runoff from a thriving agricultural environment, caused the small-town water facility to constantly encounter adverse conditions. In an effort to remain compliant, Aqua America enhanced coagulation, but this increased sedimentation rates and exacerbated sludge blanket depths.