Ultrafiltration Equipment (UF System)

Ultrafiltration Equipment (UF System) Product Introduction

Ultrafiltration (UF) equipment is the mid-range core filtration unit in membrane systems. Driven by pressure, it uses the sieving effect of 0.001~0.1μm membrane pores to achieve efficient separation of colloids, proteins, microorganisms, and macromolecular organic matter from water. It is a mature membrane separation process positioned between microfiltration and nanofiltration. Jing'anlan ultrafiltration equipment adopts high-quality modified hollow fiber membrane elements with an integrated skid-mounted design, and can be widely used in drinking water purification, reclaimed water reuse, reverse osmosis pretreatment, advanced industrial wastewater treatment, and other scenarios. The effluent turbidity is stably below 0.1NTU, SDI≤2, making it a key process for ensuring the stable operation of downstream advanced treatment systems and extending the service life of core membrane elements.

Working Principle

Under an operating pressure of 0.1~0.5MPa, raw water flows along the surface or inner cavity of the membrane filaments. Water molecules and small-molecule dissolved substances permeate through the membrane pores to become product water, while substances with particle sizes larger than the membrane pore size—such as colloids, bacteria, viruses, and macromolecular organic matter—are retained on the concentrate side. The equipment mostly adopts a cross-flow filtration mode, reducing pollutant deposition on the membrane surface through the lateral scouring of concentrate. Combined with regular air-water backwashing and online chemical cleaning, it can maintain stable permeate flux and retention performance over the long term without frequent shutdowns for maintenance.

Core Technical Advantages

1. High retention precision and stable effluent quality. The removal rate of colloids, bacteria, and viruses can reach over 99.9%, and the effluent quality is far superior to traditional sand filtration and multi-media filtration processes, directly meeting the water quality standards for reclaimed water reuse and domestic miscellaneous water. As an RO pretreatment process, it can greatly reduce the fouling rate of reverse osmosis membranes and extend the service life of core membrane elements by more than 30%.
   

2. Excellent anti-fouling performance and long operating cycle. Mainstream models use hydrophilic membrane materials such as modified PVDF/PES. The membrane surface is smooth and not prone to pollutant adhesion, resistant to acid and alkali corrosion, and can tolerate higher concentrations of influent suspended solids. The flux recovery rate after cleaning is high, the continuous operation cycle is long, and shutdown maintenance frequency is reduced.
   

3. Modular integration and more compact footprint. The standardized column-type membrane module parallel design allows flexible capacity expansion according to treated water volume. Skid-mounted and shipped as a whole, it can be put into use on site by simply connecting the inlet/outlet water pipelines and power supply. The footprint is only 1/3~1/2 that of traditional filtration processes, making it suitable for renovation and expansion projects and sites with limited space.
   

4. High degree of automation and low O&M cost. Equipped with a fully automatic control system, it can automatically complete the entire process of filtration, backwashing, blowdown, and chemical cleaning without dedicated staffing. The operating pressure is low, energy consumption is only 1/5~1/3 that of reverse osmosis processes, chemical dosage is low, and the long-term O&M cost advantage is significant.
   

Applicable Industries and Scenarios

• Reverse Osmosis / Nanofiltration System Pre-treatment: Removes colloids, suspended solids, and microorganisms to protect downstream high-pressure membrane elements, reduce cleaning frequency, and extend service life
  

• Municipal and Building Reclaimed Water Reuse: Advanced treatment of biochemical effluent, with treated water used for landscaping, toilet flushing, and road spraying to achieve water resource recycling
  

• Advanced Drinking Water Purification: Removes bacteria, viruses, colloids, and humic substances from surface water and groundwater to enhance drinking water biological safety
  

• Advanced Industrial Wastewater Treatment: Advanced filtration after biochemical treatment of wastewater from printing and dyeing, electroplating, food, pharmaceutical, and other industries to achieve compliant discharge or production reuse
  

• Special Material Separation: Food and beverage clarification, traditional Chinese medicine extract refinement, enzyme preparation concentration, and other biochemical fields
  

Selection Guide

Ultrafiltration equipment selection requires comprehensive consideration of four core factors: feed water quality, permeate flow requirements, permeate application, and on-site operating conditions:

• Membrane Material Selection: PVDF material for conventional municipal / reclaimed water conditions; PES/PAN material for food and pharmaceutical sanitary-grade scenarios; modified corrosion-resistant materials available for highly corrosive conditions
  

• Module Configuration: Column-type pressure modules preferred for large-flow municipal / industrial projects; submerged ultrafiltration modules available for high-fouling, low-concentration wastewater
  

• Operating Parameters: Conventional operating pressure 0.1~0.5MPa, pH tolerance range 2~12 (depending on membrane material), operating temperature 5~45℃
  

• System Configuration: Optional add-ons include automatic dosing system, clean-in-place (CIP) system, water quality monitoring instruments, and PLC automatic control system
  

Based on the water quality report and permeate requirements provided by the customer, the Jing'anlan technical team can deliver a customized system configuration plan and cost estimate.

Jing'anlan Service Support

• Free water quality testing and process assessment, with tailored ultrafiltration system configuration and piping design
  

• Professional on-site installation and commissioning by our team, ensuring the system meets standards on the first startup
  

• Full range of consumables including membrane elements, cleaning chemicals, and spare parts
  

• Capable of integrating the full process chain—biological treatment, reverse osmosis, and reclaimed water reuse—to provide a one-stop solution
  

• Annual operation and maintenance hosting service with regular inspections and cleaning to ensure long-term stable equipment operation