City of St. Helens, OR pre-selected pressure membrane filtration over conventional filtration and other options to reliably meet long-term potable regulatory compliance. Qualifying 3 manufactures, Microfiltration (MF) was piloted concurrent with procurement accelerating schedule to 18 months. The MF supplier was selected on life-cycle cost and O&M considerations confirmed during piloting. DHS allows consumption of filtrate from Backwash Water Recovery which reduced waste to ? 0.5%, thus enhancing overall economics. The 6 MGD facility treating water from collector wells along the Columbia River was constructed on a small site and addressed neighbors concerned with visual and noise impacts.
This presentation is available to AMTA Members only.
- Bryan Black, P.E.
- HDR Engineering, Inc.
- AMTA Technology Transfer Workshop, Portland, OR
- AMTA Technology Transfer Workshop
- Microfiltration, Surface water treatment, Backwash water recovery.