Municipal Water
Membrane elements for municipal drinking water and utility-scale water supply.
Municipal Water membranes.
OSPURA membranes are installed and operational in large-scale municipal drinking-water projects. Our NF elements were selected in 2021 for a 10,000 m³/d potable water plant in Shanghai as a national demonstration water project.
Hundreds of our ULP elements are running at a Xi'an tap-water plant.
Wave Cyber composite pressure tanks, membrane pressure vessels, and OSPURA elements carry NSF 58/61 certification, conforming to US municipal drinking-water requirements.
What drives element selection.
- 01NSF/ANSI 61 drinking-water material compliance is the procurement gate for any US municipal application.
- 02Boron and selective-ion rejection matters on elevated-boron source waters — SW-HR variants are purpose-built for this duty.
- 03Multi-train element-to-element consistency drives long-term train balance at utility scale.
- 04Recovery 75–85% typical, with concentrate-management strategy driven by inland vs. coastal discharge.
- 05Nanofiltration replaces conventional softening for color, hardness, and DBP-precursor removal without full desalting.
When to choose what.
General municipal brackish duty defaults to the BW series. For lower-pressure source water where energy is the dominant cost, ULP and XULP cut pumping load meaningfully. Specify NF where the treatment target is hardness, color, or DBP precursors rather than full salt rejection — common on surface-water plants. Where source water carries elevated boron or TDS, SW or BW-HR variants give the additional rejection headroom.
- Flow
- 11,100 GPD
- Rejection
- 99.6%
- Flow
- 11,100 GPD
- Rejection
- 99.6%
- Flow
- 10,500 GPD
- Rejection
- 99.7%
- Flow
- 10,500 GPD
- Rejection
- 99.7%
- Flow
- 11,900 GPD
- Rejection
- 99.6%
- Flow
- 11,400 GPD
- Rejection
- 99.7%
- Flow
- 11,800 GPD
- Rejection
- 98%
- Flow
- 11,800 GPD
- Rejection
- 98%
- Flow
- 2,850 GPD
- Rejection
- 98%
- Flow
- 7,900 GPD
- Rejection
- 95%
- Flow
- 7,900 GPD
- Rejection
- 95%
- Flow
- 2,100 GPD
- Rejection
- 95%
Questions procurement engineers ask.
Talk to an expert about your municipal water project.
An OSPURA applications engineer will review your feed-water analysis, target recovery, and project schedule and recommend the right element specification within one US business day.