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    • Wastewater Mechanical Aeration Systems

    VLR® Systems for Biological Treatment

    VLR® Systems utilize a vertical loop based design with looped reactors in series that allows DO stratification. As such, it is suited for simultaneous nitrification/denitrification; biological phosphorus removal and storm water treatment.

    VLR
    VLR® system tanks are similar to oxidation ditches that have been flipped on their sides.  There is an upper and lower compartment, separated by a horizontal baffle running the length of the tank.  The process has been adapted from our proven Orbal® technology and uses the same surface mounted discs to provide mixing and to deliver oxygen.  Typically, two or more basins make up the VLR system, with the first tank operating as an aerated anoxic reactor.
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    Features and Benefits

     

    • Common wall construction – lower construction costs
    • Small footprint – less land area required
    • Dual aerator design – operating flexibility
    • Lengthy aeration retention time  – low power costs
    • Coarse bubble diffusers – easy to meet peak oxygen demands
    • DO stratification – process adaptability
    • Handles excessive storm water treatment – peak flows five times the design flow

     

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    Contact Us

    Casey Whittier
    Product Manager - BNR Processes
    262.521.8506
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    Product Documentation

    Brochure:
    Vertical Loop Reactor For Biological Treatment  (pdf)

    Siemens Superior Aeration Technologies (pdf)

    Articles:
    Biotreating Process Wastewater: Airing The Options - Chemical Engineering, Oct. 2005

    New Aeration System Also Provides Biological Nutrient Removal - WE&T, Nov. 2005 

    Hybrid Aeration Process Provides Power Savings - Waterworld, Oct. 2001

    Parts & Services

    For Parts and Service call 800.931.1755
    or e-mail: envirexparts.water@siemens.com

    Highlights

     Brand New Technologies Attract International Visitors

    Featured Case Studies

    Vertical Loop Reactor (VLR®) - Texas City, TX

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