Membrane Filtration System

Ultrafiltration and microfiltration for fine particle removal and water recycling.

5-200 m3/h UF/MF Membrane Water Reuse 0.01-0.1 µm
Membrane type: UF/MF hollow fiber Pore size: 0.01-0.1 µm Material: PVDF/PES Operating pressure: 0.1-0.3 MPa Recovery rate: 85-95% Backwash: Automatic
Membrane Filtration System by Soto Machinery

Membrane filtration removes particles, bacteria, and colloids that conventional sand filters can’t catch. The result: crystal-clear water suitable for recycling, cooling tower make-up, or further RO treatment.

Key Features

Superior Filtration

Removes particles down to 0.01 microns, including bacteria and viruses.

Automatic Operation

PLC-controlled backwash system runs 24/7 with minimal supervision.

Compact Design

Skid-mounted units save space and install in hours, not days.

Water Recycling

Treated water meets reuse standards for cooling, washing, and irrigation.

Technical Specifications

ModelMF-5 to MF-200
Flow rate5-200 m3/h
Membrane area10-200 m2
Operating pressure0.1-0.3 MPa
Backwash interval30-60 min
MaterialPVDF
pH range2-11

Applications

Process water Cooling water make-up RO pre-treatment Wastewater recycling Swimming pool Food & beverage
Membrane filtration system detail

What Is Membrane Filtration System?

A membrane filtration system uses semi-permeable membrane fibers to separate particles, bacteria, and colloids from water at the microscopic level. Hollow fiber membranes with precise pore sizes act as physical barriers, allowing water molecules to pass through while trapping everything larger than the pore size.

Unlike conventional filtration that relies on gravity and media depth, membrane filtration achieves absolute separation based on size. This produces consistently high-quality effluent suitable for water reuse, RO pretreatment, and strict discharge standards.

  • Removes bacteria, viruses, and colloids
  • Produces water clear enough for reuse
  • Fully automatic with self-cleaning backwash

Why Choose Our Membrane System?

Four advantages that set our membrane filtration systems apart from conventional treatment methods.

01

Superior Water Quality

Absolute filtration removes 99.9% of bacteria and particles down to 0.01 microns. Effluent turbidity below 0.1 NTU consistently.

02

Water Reuse Capability

Treated water meets reuse standards for cooling, washing, irrigation, and RO feed. Save 70-90% on freshwater costs.

03

Compact & Automated

Skid-mounted design with small footprint. PLC-controlled with automatic backwashing. Runs 24/7 with minimal operator attention.

04

Long Membrane Life

PVDF hollow fiber membranes last 3-5 years with proper maintenance. Chemical cleaning restores full flux when needed.

Three Levels of Membrane Filtration

Choose the membrane type based on your target water quality and what you need to remove.

UF Ultrafiltration

Pore size: 0.01-0.1 µm. Removes bacteria, viruses, colloids, and macromolecules. Produces crystal-clear water suitable for reuse and RO pre-treatment.

MF Microfiltration

Pore size: 0.1-1 µm. Removes suspended solids, bacteria, and large particles. More economical than UF when virus removal is not required.

NF Nanofiltration

Pore size: 0.001-0.01 µm. Removes hardness, heavy metals, and some dissolved organics. Ideal for water softening and partial desalination.

Systems Built for Your Application

Every membrane system we build is tailored to your specific feed water quality, recovery target, and site conditions. We select the right membrane type, module configuration, and cleaning strategy for maximum performance and membrane life. OEM and private label options available for system integrators.

  • Flow rates from 5 to 200+ m3/h
  • PVDF or PES membrane material options
  • Skid-mounted with pumps, valves, and CIP
  • PLC with HMI touchscreen and remote monitoring
  • Private label / OEM branding available
Custom membrane filtration system by Soto

Common Questions About Membrane Filtration

Answers to frequently asked questions about our membrane filtration systems.

How long do the membranes last?

With proper pre-treatment and maintenance, PVDF hollow fiber membranes typically last 3-5 years. The actual lifespan depends on feed water quality, cleaning frequency, and operating conditions. We provide CIP (clean-in-place) systems to maximize membrane life.

What pre-treatment is required before membrane filtration?

We recommend pre-filtration to at least 100 microns, and ideally below 5 mg/L suspended solids. Depending on your raw water, this may include a DAF system, sedimentation tank, or multi-media filter. We design complete treatment trains including all pre-treatment steps.

What is the water recovery rate?

Typical recovery rates are 85-95%, meaning 85-95% of the feed water becomes clean permeate. The remaining 5-15% is concentrate (reject) that carries away the filtered contaminants. Higher recovery rates are possible with concentrate recycle options.

Can the system be installed outdoors?

Yes, but we recommend providing a shelter or equipment room to protect the membrane modules and electrical components from direct sun, rain, and freezing temperatures. We can design the skid for outdoor installation with appropriate insulation and heating where needed.

Contact Us for Membrane System Pricing

Tell us your feed water quality and target recovery. We will send a detailed proposal within 24 hours.

Phone / WhatsApp +86 18653221918
Factory Qingdao, Shandong, China

Request a Free Quote

Fill in the form and our engineer will contact you within 24 hours.

Contact Form
Contact Form

Ready to Recycle Your Water?

Talk to us about your filtration needs. We’ll recommend the right membrane system for your application.