Solutions / Iron fouling

    Iron removal for chilled water systems

    Our patented Halbach-array magnetic treatment aggregates fine iron oxide for capture by downstream filtration.

    01 / Installation

    Where it installs

    Deployed on side-stream filter piping or upstream of sand filters in bypass loop configuration. The magnetic field promotes iron aggregation so particles can be captured by existing filtration.

    1. Treatment
    2. Flocculation
    3. Downstream filter

    What a trial can measure

    Mass capture
    Grams captured per 1,000 gallons filtered
    Flow rate
    Treated vs control leg comparison
    Iron concentration
    PPM trend via lab sampling
    Differential pressure
    Filter loading trend over time
    Site context
    Approved secondary measures when applicable

    02 / LAX Terminal 5

    Field observations

    1. Bag filter saturated with iron oxide precipitate; iron-rich material observed near magnetic treatment devices

    2. LAX readings fell from 3.9 ppm in June 2024 to 0.51 ppm in December. Later readings were higher

    3. Two-filter test/control series used flow totalization and weighed filters for validation

    4. Microbial outcomes require separate site testing; HydroFlux is not a biocide

    Five HydroFlux bracelets installed on the Terminal 5 filter side stream at LAX
    Fig. 1 / Five HydroFlux bracelets on the Terminal 5 filter side stream
    Iron-rich sludge captured in the filter housing after HydroFlux treatment
    Fig. 2 / Iron-rich sludge captured in the filter housing
    A HydroFlux magnetic link after removal, holding captured iron precipitate
    Fig. 3 / One magnetic link after removal, holding iron
    View complete study

    03 / Transparency note

    Planning your trial

    We agree on success measures before testing. Where practical, we compare treated and untreated water under similar conditions. We record cleaning, filter changes and other operating changes when assessing the result.

    A trial on your loop

    Get data from your own system, measured so the result can be traced to the treatment.

    Discuss your system