UF / MF Membrane Design — Reuse Polishing
1Duty & membrane
Results — area & TMP
| Item | Value | Basis |
|---|
2Feed quality & CEB
| Parameter | Value | Limit |
|---|
Order note
Quote the UF instruments at factory price
A UF skid is instrument-dense: permeate TMP and flow per rack, differential pressure, feed turbidity (SDI), level and CEB-dosing control. We supply them at the manufacturer's ex-works price — margin from the export rebate only.
Request a quote for this duty ← Media Filter UV Disinfection →Sources & parameter basis
| [1] | Metcalf & Eddy / AWWA — UF/MF for water reuse: recovery 85–95 %, SRT n/a (physical barrier). |
| [2] | Module area: hollow-fibre UF ~40 m²/mod (vendor catalogues), MF ~30–60 m²/mod. |
| [3] | Design flux UF 40–70, MF 30–60 LMH; TMP 0.3–1.0 bar; K=J/TMP (LMH/bar); viscosity ~2 %/°C. |
| [4] | Feed limits: UF SDI < 3, turbidity < 5 NTU; MF SDI < 5, turbidity < 10 NTU — set by pre-filtration. |
How is membrane area and module count sized for UF/MF?
Membrane area follows from the design flux and the recovery you enter, and the module count follows from the area, so the two are never sized independently.
How do flux, recovery and transmembrane pressure interact?
Flux is what the membrane passes, recovery is what you get back, and TMP is the pressure that drives it; the calculator links them so lowering flux or raising TMP is visible as a cost.
What feed SDI and turbidity limits apply?
Feed SDI and turbidity set how much fouling the membrane tolerates, and the calculator checks the feed against the limits for tropical wastewater reuse before sizing.
Is UF/MF appropriate for tertiary reuse?
Yes - the calculator is set up for tertiary reuse, where the membrane is the barrier rather than the biological step.