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  • Volume 37, Issue 12, December 2021

    More content from Volume 37, Issue 12, December 2021

    Photo courtesy Vaughan Company.
    A few of Vaughan Company’s many available chopper pump configurations.
    Vaughan Company started with one simple question, “What could make this better?” In the service bay of the gas station he owned in Elma, Wash., Jim Vaughan spent hours repairing...
    Dec. 16, 2021
    Photos courtesy Evoqua.
    Getting the driest sludge can lead to the least amount of expenses for operation and transportation.
    Evoqua’s Michael Jagger discusses the benefits of rotary presses for WWTP operation in this Q&A session.
    Dec. 16, 2021
    Photos courtesy Owini.
    The village of Ombala yo Mungu is located far from developed infrastructure, which created unique challenges for developers seeking to build water treatment solutions in the area.
    In Western Africa, the village of Ombala yo Mungu operates a self-sustaining desalination facility through solar power.
    Dec. 16, 2021
    Photos courtesy Aqua-Aerobic Systems.
    A conceptual view of the Portland, Ind., Wastewater Treatment Plant’s two AquaDisk filter installations.
    The Portland, Ind., WWTP replaced their six decades-old granular-media filter units with new cloth media filters, boosting capacity by 540 percent.
    Dec. 16, 2021
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    With the infrastructure bill comes a much stricter series of Buy American requirements — which will likely have far-reaching repercussions for the water sector.
    Dec. 16, 2021
    Photos courtesy Energy Trust of Oregon.
    The City of Gresham’s Wastewater Facility is the first in the Pacific Northwest to generate the same amount of electricity as it consumes in a year.
    In Oregon, wastewater treatment plants are using cogeneration engines to convert methane into renewable energy.
    Dec. 16, 2021
    Photo courtesy VBT.
    Air Control Valves (ACV) are commonly used in water, wastewater and sewage systems to increase efficiency and reliability of pipelines.
    Considerations when picking an air valve will generally be: type of media, pressure rating of the device, mounting method, air flow requirements, surge protection requirement ...
    Dec. 16, 2021