Free replacement for broken UF membranes

A new generation of its patented and break-proof Multibore membranes will be exhibited by inge watertechnologies AG at WEFTEC in Orlando, USA, during October 12-14, 2009.

With permeability boosted by almost one third while maintaining the same levels of virus and bacteria retention, this new membrane design is not only safe, but also extremely effective and energy-efficient.

A leading ultrafiltration (UF) membrane maker, inge claims to have maintained a clear competitive edge due to the ability of its Multibore membrane to withstand fiber breakage, a feature that the company guarantees. The changes that have now been made to the membrane’s chemical composition have also had an impact on its mechanical properties, making the membrane even more flexible and resistant under heavy loads and the UF process even more reliable.

Martin Heijnen, head of membrane development at inge, explains further: “We are now even more confident than before that our membrane can withstand even the heaviest loads, which is why we have decided to offer a ‘No Membrane Breakage’ guarantee. Should fiber breakage occur, we will replace the module at no cost, meaning that the customer involved would not be required to pay any repair costs.”

The increased permeability of the new membrane marks another milestone in UF technology, Heijnen maintains. “The permeability and virus retention of UF membranes depends not only on pore size, but also on pore length, pore density and pore distribution. We have made major improvements to all these factors.”

Flow rate has been increased by almost one-third while maintaining the same high rate of virus and bacteria retention. Tests carried out by the independent IWW Water Centre in Mühlheim an der Ruhr, Germany, have shown that the new Multibore membrane provides retention levels for MS2 phages even greater than log 4, which corresponds to a retention rate of more than 99.99%. This superb retention performance is a decisive criterion, particularly for drinking-water purification.

Higher permeability means that lower transmembrane pressure (TMP) is required for treatment plant operations and longer intervals between backwashing. This makes the plant more effective and energy-efficient.

For more information, contact: inge watertechnologies AG
Tel: +49 8192 997-700
Email: [email protected]