MidiRO on the big screen
Oxfordshire, UK-based Optical Filters, a manufacturer of electromagnetic interference (EMI) screening systems for displays in military vehicles, tempest monitors and industrial equipment, has installed a reverse osmosis plant from Elga Process Water to solve a production problem with the company’s optical screen meshes.
The blackened copper mesh screens are produced to a high tolerance and the final water rinse is critical to product quality. In spite of softening the hard local mains water, the rinse left streaks on the surface of the mesh resulting in unusable product. Elga Process Water, part of Veolia Water Solutions & Technologies (VWS), recommended replacing the old water softener with an enhanced system consisting of a selectron softener and carbon filter followed by a MidiRO 750 reverse osmosis unit. Not only does the system soften the water, but the membranes in the MidiRO also remove more than 95% of the dissolved salts in the water along with any particulate material and bacteria.
“The higher-quality water produced by the system has enhanced our process and improved product rejection by about 70%,” says Optical Filters’ technical sales manager, David Payne.
The MidiRO range consists of five freestanding models, which produce from 90 to 800L/h of permeate and are equipped with a 1µm prefilter and a control panel which gives a clear display of water conductivity, temperature and operational status, and alarm logging facilities.
All models feature an automatic timed re-circulation rinse to avoid membrane fouling during inactive periods and automatic treated water diversion on start up until normal operating quality is reached. The controller can also output conductivity values to a PLC.
Contact T + 44 1628 897000 {encode="sales.uk@veoliawater.com" title="sales.uk@veoliawater.com"} www.elgaprocesswater.co.uk