Field data
LAX Terminal 5 iron removal study
We installed HydroFlux on a working chilled water system at LAX Terminal 5 and measured what happened over 10 months. Here is what we found, and how we measured it.
In short
01 / System context
Iron fouling at LAX Terminal 5
Iron deposits were building up in the terminal’s chilled water equipment. We installed HydroFlux bracelets on the filter side stream so the existing filtration could capture the iron.
This is our own field study. Every system is different, so we measure the results at your site with you before you decide.
02 / The result
Field result
- Lower iron
- 87%
- 3.9 to 0.51 ppm
03 / Field observations
Filter capture and iron readings
When we opened the bag filter, it was saturated with iron-rich material. We hadn’t metered the side-stream flow in that first phase, so our next test added flow meters.
Iron in the chilled water system came down from 3.9 ppm to 0.51 ppm.
- Starting level
- 3.9 ppm
- Reduced to
- 0.51 ppm
04 / Second test
Treated and untreated filters
Next we ran two filters side by side, one treated and one untreated, with flow meters on both. We weighed each filter after every run. The two filters sat in different positions, so their flows weren’t identical.
| Metric | Treated | Control |
|---|---|---|
| Total flow | 2,082,882 gal | 2,159,924 gal |
| Captured material | 912 g | 867 g |
| Grams per 1,000 gal | 0.4379 g | 0.4014 g |
These totals combine our best-performing runs and compare captured material per 1,000 gallons filtered. They aren’t a single-pass removal rate or a measure of filter life.
05 / What we learned
How we run trials now
In your trial, we
- Agree on success measures with you before testing
- Use comparable flow and filter placement wherever we can
- Measure flow and captured material the same way throughout
- Record cleaning, filter service and other operating changes
Measure results at your site
We'll agree a baseline, comparisons and success measures with you before a trial starts.