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Laminar Water - Model UF -Ultrafiltration System
Ultrafiltration (UF) is a pressure-driven separation process that uses a membrane for physical separation. It is highly effective at removing suspended solids, colloids, bacteria, protozoa, and some viruses through size exclusion.
With membrane pore sizes typically ranging from 0.01 to 0.1 micrometers, UF provides an absolute barrier to fine particulate matter. UF membranes often employ a similar pressurized, hollow-fiber configuration to Microfiltration (MF), the key distinction is UF`s smaller pore size, which allows for removal of smaller contaminants.
The operational cycle typically runs for 20-60 minutes, followed by a critical backwashing step to restore permeability. During a backwash, filtrate is sent backward through the membrane to dislodge accumulated foulants from the surface. This process is often aided by air scouring to provide turbulence and draining of the vessel to ensure the removal of the dislodged solids. UF is particularly valuable as a pre-treatment step ahead of reverse osmosis (RO) or nanofiltration (NF) because it removes particulates and microorganisms that cause fouling.
- Removal of Suspended Solids and Pathogens from Surface Water
- Pre-treatment for RO and NF systems
- Lagoon Effluent Polishing
- Industrial Wastewater Reuse
- Suspended Solids
- Pathogens (Bacteria, Protozoa)
- Turbidity & Colloids
- Some Viruses
- Dissolved Solids (TDS)
- Nitrate
- Fluoride
- Small organic molecules