Dow UF Membrane

DOW™ Ultrafiltration (UF) modules are made from high mechanical strength, PVDF hollow fiber membranes. The modules provide excellent performance and industry leading membrane area.

These modules have the following properties and characteristics:

• 0.03 µm nominal pore diameter for removal of bacteria, viruses, and particulates including colloids to protect downstream processes such as RO

• PVDF polymeric hollow fibers for high mechanical strength and chemical

resistance providing long membrane life and reliable operation.

• Hydrophilic PVDF fibers for easy cleaning and wettability that help maintain long term performance

• Outside-In flow configuration allowing a wide range of solids in the feed water

minimizing the need for pretreatment processes and reducing the backwash

volume compared to Inside-Out configurations U-PVC housing, helping to

eliminate the need for costly pressure vessels.

The 2660 membrane module is ideal for systems with capacities of 50 mhr (220 gpm) and below. The 60-inch-long membrane module can handle a variety of incoming water more efficiently than longer membrane modules. In addition, the membrane module has a diameter of 6 inches and is small in size, allowing for a relatively compact design, making it ideal for applications where space is limited.

The 2860 which is shorter in length is recommended for smaller systems and where building height is of concern. The 2880 has higher membrane area for the same footprint offering a more economical design.

DOW Ultrafiltration Modules can be used for a wide variety of treatment applications such as surface water, seawater, and industrial and municipal wastewaters.

2660

Product Specifications：

Operating Parameters - 2660

2860/2880

Product Specifications：

Operating Parameters - 2860

Operating Parameters - 2880

Important lnformation

Proper start-up of an ultrafiltration system is essential to prepare the membranes for operating service and to prevent membrane damage. Following the proper start-up sequence also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved.

Before initiating system start-up procedures, membrane pretreatment, installation of the membrane modules, instrument calibration and other system checks should be completed.

Operation Guidelines

Avoid any abrupt pressure variations during start-up, shutdown, cleaning or other sequences to prevent possible membrane damage. Flush the ultrafiltration

system to remove shipping solution prior to start-up.Remove residual air from the system prior to start-up.Manually start the equipment. Depending on the  application, filtrate obtained from initial operations should be discarded.

Please refer to the  Product Manual.

General Information

 lf operating limits and guidelines given in this bulletin are not strictly followed, the limited warranty will be null and void..

 lf operating limits and guidelines given in this bulletin are not strictly followed, the limited warranty will be null and void..

Please refer to the Product Manual and Technical Service Bulletins.

Regulatory Note

NSFIANSl 61 and 419 certified drinking water modules require specific conditioning procedures prior to producing potable water. Please refer to the product technical manual flushing section for specific procedures. Drinking water modules may be subjected to additional regulatory restrictions in some countries.Please check local regulatory guidelines and application status before use and sales.