Industrial UF Ultrafiltration Membrane Series LEFILTER Pre-RO Filter Module

As essential front pretreatment equipment for all deep desalination systems, filter cartridge UF membrane series, also called Ultrafiltration membrane module, efficiently traps colloidal impurities, algae, microorganisms and tiny suspended particles mixed in raw industrial water. Installed directly upstream of the RO membrane system, the UF membrane module slows down the fouling speed of Reverse Osmosis membrane greatly, extending RO service life and lowering regular chemical cleaning frequency. Combined with front-end High Flow Filter, the Ultrafiltration membrane forms two-stage security pre-filtration, stabilizing inlet water quality for all types of RO membrane element modules.

Working Principle of UF Membrane Module

Raw feed water flows into the membrane housing and passes through dense hollow fiber tubes of the UF membrane. Small water molecules and dissolved mineral ions penetrate the hollow fiber wall and flow out as clear ultrafiltration permeate water. Colloids, bacteria, macromolecular organic matter and tiny rust particles are completely intercepted on the outer surface of the Ultrafiltration membrane. Timely cross-flow backwashing flushes accumulated dirt from the membrane outer layer, maintaining stable constant flux of the UF membrane module during months of continuous industrial operation without frequent shutdown maintenance.

Standard Technical Index

• Common Module Sizes: 4-inch standard UF membrane module, 8-inch large-flow UF membrane module

• Core Membrane Material: Hydrophilic PVDF hollow fiber filament

• Nominal Interception Precision: 0.01 micron ultra-fine separation grade

• Max Safe Operating Pressure: 0.6 MPa (87 psi)

• Continuous Working Temperature Range: 5℃ ~ 40℃

• Matching Downstream Equipment: All specifications of RO membrane element and industrial water filter housings

Every batch of finished UF membrane module undergoes flux stability and anti-fouling testing before shipment, fully compatible with all complete industrial Water Filter Element (RO & UF Membrane) water treatment systems.

Four Major Product Advantages

1 Ultra-Fine Interception Performance
0.01μm hollow fiber UF membrane fully traps colloids and microorganisms that easily block downstream RO membrane element.

2 Permanent Hydrophilic Property
Modified PVDF Ultrafiltration membrane resists organic dirt adhesion, easy to regenerate via regular water backwashing without complex chemical agents.

3 Universal Standard Module Size
Standard housing interface of the UF membrane module allows quick assembly before any brand Reverse Osmosis membrane system without custom modification.

4 Low Long-Term Operation Cost
Long service cycle of the Ultrafiltration membrane reduces spare part replacement frequency and overall water system maintenance expense.

Main Application Fields

This industrial UF membrane module is widely applied as pretreatment for pure water equipment, industrial wastewater recycling lines, food beverage raw water purification and chemical process water treatment. As the necessary front filter of the RO membrane, the Ultrafiltration membrane stabilizes long-term water production efficiency and cuts the total operating cost of the whole desalination station for industrial customers worldwide.

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FAQ About UF Ultrafiltration Membrane

Q1 Why must UF membrane be installed upstream of RO membrane?
A1 The UF membrane module intercepts colloids, algae and tiny organic particles which cause rapid fouling of Reverse Osmosis membrane, drastically reducing RO cleaning times each year.

Q2 What raw material is adopted for standard industrial Ultrafiltration membrane?
A1 Standard product uses hydrophilic PVDF hollow fiber filament; this UF membrane owns excellent acid and alkali resistance for industrial water cleaning cycles.

Q3 How frequent is backwashing required for UF membrane module?
A3 Cross-flow backwashing every 2–4 hours under normal raw water turbidity to clear dirt accumulated on the outer surface of the Ultrafiltration membrane.

Q4 Can this UF membrane module be used for industrial wastewater reuse pretreatment?
A4 Yes, matched with front-stage high flow filter cartridge, the UF membrane module is the ideal pre-filtration solution for industrial sewage recycling and zero-discharge water projects.