Pall Aria™ System Installations for Groundwater Treatment
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Some Pall Aria Installations for Groundwater Treatment
| Project Location | Application | Pretreatment | Flux (GFD at 20°C) | Flow (mgd) |
|---|---|---|---|---|
| Fallon, NV | As removal | FeCl3w/ CO2 | 75 | 0.5 |
| Holladay, UT | GWUDI | None | 65 | 2.5 |
| Orleans,MA | Fe & Mn removal | NaOCl & KMnO4 | 60 | 3 |
Typical performance is 75-100 gal/ft2/day.
Spring water treated to lower turbidity
Stricter government regulations and poor-quality spring water prompted the Holliday Water Company to build the Spring Creek water treatment plant in 2002. Until then, the 15,000 residents of Holladay, Utah received their potable water from springs that were under the influence of surface waters from seasonal runoff. The spring water had a turbidity of 0.3 NTU, the maximum allowed by the US EPA. The goal was to reduce turbidity below the maximum.
The Pall Aria system was selected for water treatment because of its features and its performance during pilot testing. “It was cost effective, modular to fit our limited area, had a quiet backwash, and was capable of filtering prechlorinated water,” the plant manager said of the system's performance during the pilot studies.
The full-scale Pall Aria system installed at the Spring Creek plant includes 78 modules, with 50 square meters of effective filtration surface area per module. It processes 1.2 mgd of the feedwater, with 95% recovered. The Pall Aria system was successful at lowering turbidity; in this case, from 0.3 NTU to 0.021 NTU, well below the US EPA's upper limit.
