Drinking Water Treatment Case Studies and White Papers

  1. White Paper: Comparing Conventional Settling Basin Clarification To Leopold Clari-DAF System Clarification
    The source waters for the Greenville Water System were so clear that for over 70 years the water from the mountain reservoirs was unfiltered and only treated with chlorine. However, in the mid-1980s, the Adkins Plant, designed at 30 MGD and employing conventional settling basin clarification technology, was built to filter water drawn from Lake Keowee. Increasing regulations required all surface water systems to be filtered, so a new state-of-the-art filter plant was placed in service to provide filtration for all of the water drawn from the Table Rock and Poinsett Reservoirs. This paper compares the performances of the two treatment processes, given the fact that the source water is very similar and the treatment chemicals are identical
  2. High Efficiency Media Filtration And Ultraviolet (UV) Disinfection Is Becoming A Crucial Component For Today's Cooling Tower Needs

    An increasing number of technology industries are turning to cooling towers to remove excess heat from buildings or processes. Server farms or server clusters are typically located between the system switches and routers, the removal of heat from these facilities is critical to their optimal performance.

  3. The Most Misunderstood Fact Behind Dissolved Oxygen Sensors (It’s The Pressure, Not The Concentration)

    A dissolved oxygen sensor ought to be simple to understand. Whether it is membrane or optically based, it gives a signal that is proportional to the concentration of oxygen concentration in water.

  4. Meeting The Growing Demand For Large Size Degasification Modules

    Sun Chemical Advanced Materials’ parent company, the DIC Corporation, is pleased to announce that it has expanded production capacity of its large size degasification module (LDM), SEPAREL® EF-120, by building a new plant.

  5. Clarification And Filtration Upgrades Using ACTIFLO Technology

    The City of Somersworth has a historical background dating back to the early 1900s when it became the first community to start using chlorine to disinfect it’s drinking water.

  6. Case Study: Aquatech Supplies One Of Most India's Largest Tertiary Treated Sewage Recycle Plants
    The water supply body in Mumbai having increased water charges to almost a dollar per cubic meter of water in year 1998-99, and the huge water quantities demanded for processing of fertilizers, RCF required a solution wherein it could effectively recycle the sewage water to be made available by the Municipal body. By Aquatech International Corporation
  7. How To Clean And Handle pH Sensors

    For a pH sensor to maintain an accurate reading, the sensor must remain clean. Specifically, the glass measuring electrode cannot become coated, and the reference electrode assembly must not become coated, plugged or otherwise contaminated by the process solution. Here’s how to clean pH sensors to ensure correct operation.

  8. Technical Paper: Pretreatment Using Micro-Media Filtration

    This paper describes a filtration system that uses a unique micro-media. The small particle size of this media ensures a high level of filtration efficiency, while still maintaining the benefit of a relatively lower capital cost and high solids loading. Case studies are presented for the treatment of various waters. By Michael Sheedy, Phillip Simmons, Rusi Kapadia, Eco-Tec Inc.

  9. Arsenic Removed From Drinking Water With Iron Oxide Adsorption Treatment

    When high levels of arsenic were found in the drinking water in the community of Alto Lampa outside of Santiago de Chile, municipal water provider Aguas Adinas faced a predicament. AdEdge Water Technologies was contacted to design a treatment approach. This case study describes how iron oxide adsorption helped Alto Lampa reduce arsenic levels in treated water to non-detectable concentrations.

  10. White Paper: High-Efficiency Reverse Osmosis Treats Gray Water For Power Generation

    Recycling of gray wastewater as boiler make- up water was the challenge where silica value was typically 85 ppm in this secondary treated wastewater. This paper describes a new design called the High-Efficiency Reverse Osmosis selected for that task, discusses the project technical considerations and highlights the actual performance of the system.