UNA-600AB UF Membrane Asahi Kasei Microza Equivalent

Product Introduction

The UNA-600AB UF Membrane Module is an industrial-grade ultrafiltration solution, meticulously engineered to serve as a direct and high-performance equivalent to the Asahi Kasei Microza UNA-600AB membrane. Designed for large-scale water treatment systems, this module offers reliable filtration, long membrane life, and superior compatibility in both new installations and replacement scenarios.

Built with polyethersulfone (PES) hollow fiber membranes, the UNA-600AB module delivers exceptional performance in removing turbidity, suspended solids, microorganisms, and colloidal impurities. It is widely applied in municipal drinking water treatment, industrial water recycling, reverse osmosis (RO) pretreatment, and process water applications. The membrane design ensures high flux, durability, and operational simplicity with reduced energy and maintenance costs.

Working Principle

The UNA-600AB membrane functions on the principle of outside-in ultrafiltration using a pressurized hollow fiber configuration. This ensures highly efficient separation with minimal clogging and energy consumption.

How It Works:

1.    Feed Water Flow: Contaminated or pretreated water flows over the exterior surface of the hollow fibers.

2.    Selective Permeation: Water molecules and low-molecular-weight solutes pass through the membrane pores (approximately 0.01–0.03 µm), while bacteria, viruses, and suspended particles are retained outside.

3.    Clean Water Collection: The filtered water is collected from inside the hollow fiber and directed through the permeate outlet.

4.    Cleaning Cycle: Periodic backwashing, air scouring, and chemical cleaning restore performance and prevent fouling.

This membrane system enables a continuous supply of high-quality water while maintaining energy efficiency and long-term operational reliability.

Key Features

·         ✅ Perfect Replacement
Fully compatible with Asahi Kasei Microza UNA-600AB in form, fit, and function. No design changes or adjustments are necessary during replacement.

·         ✅ Excellent Filtration Performance
Capable of removing >99.99% of bacteria, viruses, and suspended solids. Ideal for producing ultra-clear, low-SDI water.

·         ✅ Advanced PES Membrane Material
Made from high-strength polyethersulfone (PES), offering chemical resistance, thermal stability, and consistent pore size.

·         ✅ Outside-In Filtration
Supports higher solid loading with less fouling, enabling longer filtration cycles and reducing downtime.

·         ✅ Backwashable Design
Equipped with automated backwash and air scour features to extend membrane life and maintain flux.

·         ✅ Corrosion-Resistant Housing
The module casing is made from robust, chemically resistant ABS or FRP to ensure safe long-term operation under varied conditions.

Technical Specifications

Applications

1.    Municipal Drinking Water Plants
Guarantees safe and clean water by effectively removing pathogens, organic particles, and turbidity from surface or groundwater sources.

2.    Industrial Wastewater Recycling
Treats and reclaims process water for reuse in manufacturing, minimizing environmental discharge and conserving resources.

3.    Reverse Osmosis (RO) Pretreatment
Significantly reduces RO membrane fouling by lowering turbidity and silt density index (SDI), thereby improving RO performance and lifespan.

4.    Desalination Pre-Filtration
Protects downstream desalination systems by removing particulates, algae, and microorganisms.

5.    Electronics and Semiconductor Industries
Ensures ultra-pure process water by eliminating fine particles and biological contaminants.

6.    Food and Beverage Processing
Provides hygienic and safe water input for various food and beverage production processes requiring strict quality standards.

FAQ

1. What does “equivalent to Asahi Kasei UNA-600AB” mean?
It means this module is designed to exactly match the specifications of the original UNA-600AB in terms of size, connection ports, materials, and performance, ensuring seamless replacement.

2. What kind of water can it treat?
The module can treat surface water, groundwater, municipal tap water, industrial process water, and wastewater for reuse.

3. What level of microorganism removal can I expect?
The UF membrane typically provides over 4-log removal (>99.99%) of bacteria and over 2-log removal of viruses.

4. Is pre-filtration necessary before the UF system?
Yes, coarse filters (typically 100–200 µm) are recommended upstream to remove large debris and extend membrane life.

5. How often do I need to clean the membrane?
Automated backwash and chemical cleaning are usually done based on transmembrane pressure (TMP) trends. CIP is recommended every few weeks depending on fouling rate.

6. Can I use the module in my existing UF skid?
Yes, if your system was originally configured for Microza UNA-600AB, this module fits directly without modification.

7. What’s the typical lifespan of this membrane?
With proper maintenance and operating conditions, the membrane typically lasts 5–7 years.

8. What chemicals are safe for cleaning this UF membrane?
Standard cleaning agents include sodium hydroxide (NaOH), citric acid, and diluted sodium hypochlorite (NaOCl), depending on the type of fouling.

Conclusion

The UNA-600AB UF Membrane Module offers a high-quality, cost-effective solution for water and wastewater treatment applications that require reliable, long-lasting ultrafiltration. Designed to match the trusted Asahi Kasei Microza UNA-600AB, it offers outstanding performance in particle and microorganism removal, RO pretreatment, and water reuse. Whether you're retrofitting an existing system or building a new one, the UNA-600AB module ensures operational excellence with reduced total cost of ownership.