Ultrafiltration (UF) Membrane Filter System

How Does Our Ultrafiltration (UF) Membrane Filter System Function?

The working principle of UF is simple, but the engineering behind it is important when choosing a supplier for a large project.

Step 1: Feedwater Entry

Untreated or pre-filtered water enters the Ultrafiltration (UF) module at a low pressure, usually between 0.04 and 0.3 MPa. One of the best advantages of a UF system over an RO system is the low pressure, resulting in lower energy consumption and operating cost throughout the project lifetime without compromising filtration performance.

Step 2: Outside-In Hollow Fiber Filtration

Oxymo Technology UF modules use an outside-in flow setup: feedwater surrounds the hollow fiber on the outside, and clean filtered water (permeate) is collected on the inside. The design can handle high-turbidity feedwater and remain stable even in the event of seasonal or industrial load changes in the inlet water quality.

Step 3: Physical Membrane Barrier

The PVDF hollow-fiber filtration membrane provides a reliable physical barrier for effective filtration. It filters particles, bacteria, viruses, and colloids on the surface of the membrane or within the fiber wall, with a pore size of 0.03-0.05 µm. Water molecules and dissolved minerals smaller than the pores are allowed to pass through, ensuring the permeate turbidity remains below 0.2 NTU.

Step 4: Dead-End or Cross-Flow Operation

The system operates in two modes, depending on the feedwater quality and use. Dead-end mode filters the entire feed through the membrane and is best used for low-turbidity feed and high-recovery objectives. Cross-flow mode sweeps water across the membrane surface, producing less fouling — the popular choice for industrial effluent and wastewater reuse.

Step 5: Backwash and Chemical Cleaning (CIP/CEB)

As time passes, solids become deposited on the surface of the membrane. The system controls this with regular backwashing, chemically enhanced backwash (CEB), and full clean-in-place (CIP). Oxymo Technology membranes withstand up to 5,000 ppm NaClO and operate across pH 1-13 without harming the membrane structure or shortening its working life.

Key Benefits of UF Membrane Filters for Industrial & Municipal Projects

Oxymo Technology is a leading ultrafiltration membrane filter manufacturer and provides high-efficiency UF solutions for B2B users.

Low-Pressure, Energy-Efficient Design

UF systems have a TMP of 0.04-0.3 MPa — far less than RO or NF. This low pressure saves power throughout the project life; in large 24/7 plants, those savings add up to significant operating cost reductions without affecting filtration performance or output quality of the ultrafiltration system.

Consistent High-Quality Filtration Output

Oxymo Technology UF membranes are effective at removing bacteria, viruses, turbidity, and colloids with a pore size of 0.03-0.05 µm and MWCO of 130K-150K. Permeate turbidity remains below 0.2 NTU, which is critical for drinking water projects, RO pre-treatment, or any application requiring uniform inlet quality to the UF membrane filter for stable downstream performance.

Chemically Resistant PVDF Hollow Fiber Construction

Oxymo Technology membranes are made with foam-structure PVDF hollow fiber. PVDF is resistant to the most common industrial membrane cleaners, such as chlorine, acids, and alkalis. This chemical stability improves membrane life, reduces cleaning frequency, and lowers long-term maintenance costs in aggressive or variable-quality feedwater.

Wide pH & Temperature Operating Range

The membranes are effective for the pH range 1-13 and the temperature range 5°C-50°C. The broad range is appropriate for municipal water treatment and for more demanding industrial applications, where the feed chemistry varies. No heavy pre-treatment is necessary — the membrane can withstand a wide range of inlet conditions and has a low fouling rate.

OEM-Friendly Modular Sizing

Modules come in diameters of 90-250 mm and membrane areas of 8-75 m²/module. This versatility allows them to be easily incorporated into skid-mounted, containerized, or turnkey ultrafiltration membrane system configurations. This equates to reduced engineering complexity, faster assembly, and increased scalability for the OEM manufacturers and EPC contractors as the project flow increases.

Reduced Chemical Pre-Treatment Dependency

Physical membrane filtration removes the need for coagulants, flocculants, and other pre-treatment chemicals, which are costly and add complexity. Fewer chemicals result in easier dosing, lower consumable costs, and reduced chemical waste, making the system leaner, cleaner, and easier to operate.

Application Areas of UF Membrane for Global B2B Projects

Drinking Water & Municipal Treatment

Oxymo Technology UF modules support surface water, groundwater, and municipal treatment by removing pathogens and turbidity — from large plants to decentralized and containerized systems, delivering dependable ultrafiltration water treatment.

Industrial & Wastewater Reuse

UF modules are well suited for tertiary treatment, effluent polishing, and process reuse, which effectively removes biomass and suspended solids, thus creating stable, reusable feed for downstream RO and NF.

Food, Beverage, Pharma & High-Purity Water

OEMs use UF to generate high-purity water and ingredients while ensuring mineral content and product integrity by removing particles and controlling microbial contamination.

Desalination & RO Pre-Treatment

UF is highly utilized as RO pre-treatment to decrease SDI, turbidity and fouling, which result in longer RO membrane life, lower chemical use, and improved performance for seawater and brackish-water systems.

UF vs. MF vs. NF vs. RO: Which Membrane Technology Is Right for Your Project?

Selecting the appropriate filtration membrane requires knowledge of the position each one occupies in the filtration spectrum:

Technology	Pore Size	Typical Pressure	Removes	Passes
MF (Micro)	0.1-10 µm	~0.1-2 bar	Suspended solids, protozoa, some bacteria	Viruses, dissolved salts
UF (Ultra)	0.01-0.1 µm	~1-7 bar (0.04-0.3 MPa)	Bacteria, viruses, colloids, suspended solids	Dissolved salts
NF (Nano)	0.001-0.01 µm	~3.5-30 bar	Divalent ions (hardness), organics	Most monovalent ions
RO (Reverse Osmosis)	< 0.001 µm	~8-80 bar	Nearly all dissolved salts & organics	Water only

The takeaway for B2B buyers: UF is a key bridging solution — far more effective at removing contaminants than conventional filtration, yet needing a fraction of the energy and pressure of RO. It is the most cost-effective step in the stack for most pre-treatment and water-reuse applications.

Manufacturing, Quality Control & Certifications

Oxymo Technology is a vertically integrated manufacturing company that designs and manufactures its UF membranes in Foshan, China, with the assistance of invention patents and cooperation with research institutions. Production and management processes are ISO 9001 & ISO 14001 compliant, and the membranes comply with the CE certification requirements, providing municipal, industrial, and OEM customers with confidence in every batch and every membrane.

Global Supply & Project Support

As a global supplier and experienced exporter, Oxymo Technology supplies ultrafiltration membranes to OEM manufacturers, EPC contractors, and international distributors worldwide, assisting with standard and fully customized projects. Our global distribution network manages export documentation and logistics, ensuring the UF order comes ready for installation in the destination market.

This global distribution reach, with direct factory-price sourcing, makes Oxymo Technology a dependable global supplier and long-term partner for UF distributors and OEM programs — covering any bulk requirement from a single trial module to a large recurring bulk order supply.

OEM, Wholesale & Bulk Supply

Oxymo Technology offers UF membrane and module OEM/ODM services such as customized module configuration, private-label branding, and application-specific design (flux and TMP data and cleaning-process instructions included). We are a wholesaler and direct factory, providing competitive wholesale pricing and bulk order supply to system integrators and equipment makers.

Wholesale price tiers are based on the volume of orders, allowing a distributor or equipment manufacturer to assemble a UF product line around a patented and certified product platform. Transparent UF membrane price, ultrafiltration membrane price, and ultrafiltration system price are quoted per project — contact us with your flow rate and module needs for a detailed figure.

Why Choose Oxymo Technology as Your Ultrafiltration Membrane Supplier?

Selecting the right ultrafiltration membrane supplier is one of the most important things to consider when undertaking a water treatment project, as it will affect system performance, project timing, and long-term operating cost. Oxymo Technology is a reputable ultrafiltration membrane supplier providing proven solutions with real industry experience and on-site technical support.

All UF modules are built to operate non-stop in filtration mode, with little maintenance, and are balanced to operate in a wide range of water conditions and challenging industrial applications. With Oxymo Technology, you have not only a product but also a reliable supply chain, strong technical support, and many OEM solutions that reduce project risk, control project costs, and provide better results for your customers.

Value for Distributors, OEMs & EPC Contractors

It is a beneficial business decision for distributors, OEMs, and EPC contractors to obtain a UF water filter range directly from a specialist manufacturer. You get factory-direct quality with the margin room that comes from true factory price sourcing, plus a certified, patented ultrafiltration membrane system platform you can put your own brand on. As Oxymo Technology is a true manufacturing company, it has its own production team, and partners work directly with its engineers, who design and test the fibers.

As a wholesaler and direct factory, Oxymo supports this with batch-to-batch consistency, module size customization, and volume-based, wholesale pricing. A wholesaler supplying a standard UF water filter line benefits from repeat replacement module orders, and an EPC contractor receives one source of a reliable water filter line system with an ultrafiltration membrane to ease procurement for an entire build program.

Frequently Asked Questions

How long is an Oxymo Technology UF membrane module expected to last?

PVDF UF membranes can offer approximately 5-10 years of service life when used properly and cleaned (backwash, CEB, and CIP). The chemical resistance of PVDF gives significantly longer life to membranes than other materials.

Can UF membranes handle high-turbidity feedwater?

Yes. Oxymo Technology modules can withstand high-turbidity feedwater in an outside-in flow configuration, with consistent flux and periodic backwashing even under challenging conditions.

Can UF be used as a standalone solution?

UF is very efficient at eliminating bacteria, suspended solids, turbidity, and microorganisms but will not remove dissolved salts or heavy metals. Where dissolved solids must be removed, UF is used as pre-treatment before RO or NF.

Does Oxymo Technology support OEM and private-label projects?

Yes. Oxymo Technology provides OEM partners and international distributors with custom branding, custom module configuration, and application-specific customization, plus technical support such as flux/TMP design data and cleaning-process instructions.

What is the price of a UF membrane or system?

The UF membrane price and ultrafiltration system price depend on module size, membrane area, configuration, and volume. Contact Oxymo Technology with your specification and quantity for a factory price and wholesale prices on bulk orders.

Get in Touch

Need a trustworthy and reliable ultrafiltration membrane filter manufacturer & supplier for your next project? Oxymo Technology is a China-based factory and an experienced exporter — the right partner for factory price sourcing, customizing OEM membranes or systems, and bulk order supply for UF membranes and systems. Share your flow rate, feedwater quality, and module needs plus any bulk requirements, and our team will respond with specifications, ultrafiltration membrane prices, and wholesale prices.