Pentair Selects PESU Ultrafiltration Membranes to Ensure the Delivery of Clean and Safe Water

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Pentair Selects PESU Ultrafiltration Membranes to Ensure the Delivery of Clean and Safe Water

To ensure clean and safe water throughout the treatment system, UK-based company Pentair uses BASF’s Ultrason E 6020 P.

News by Rob Coker, EPPM

 

With this high-performance polyethersulfone (PESU), ultrafiltration membranes can be produced for the purification and decontamination of drinking water. Pentair uses the high-purity PESU for at-the-source membranes in water distribution systems, as well as in point-of-use filters for infection control.

In contrast to other materials, Ultrason E shows the unique combination of a high flux of water and a narrow pore size distribution. This enables UF membranes to meet drinking water standards without super-chlorination after filtration.

At-the source solution

Pentair uses Ultrason E to produce X-Flow membranes for filtration systems in hospitals, health centres and hotels to help avoid possible contamination of pathogenic waterborne bacteria such as legionella and pseudomonas. A narrow pore size distribution in UF membranes enable the high throughput production of clean and safe water at low pressure in a very efficient way.

Point-of-use solution

The BASF PESU can also be employed in point-of-use filtration for easy and reliable protection against waterborne bacteria at the point-of-use. The unique filters are designed for hospitality and medical facilities, including high-risk areas such as critical wards, ICUs or operating rooms.

Hollow-fibre UF membranes with microscopic pores form a very fine filter that protects from waterborne infection. A high-purity material with a low content of gels and oligomers, Ultrason E shows low fouling tendencies and can be easily cleaned. Repeated sterilisation with superheated steam (at 134°C), ethylene oxide and gamma-radiation is possible without harm to the pore structures.

The BASF material is usable on a wide pH-range (0-13) without degradation. It complies with FDA and European standards for food contact at repeated use.

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