Since the first municipal installation in 2002, MicroDynamics® microwave UV disinfection systems have been successfully operating across a number of applications.
Potable Water: Poland
In October 2005, two, single lamp module, closed vessel MicroDynamics® microwave UV disinfection systems were installed at a municipality in Poland to assist in the de-activation of the Chlostridium pathogen. The Chlostridium pathogen is especially virulent in the winter when the water temperature is very low. The microwave powered lamps featured in the MicroDynamics system do not require a warm up period when powered on, they instantly provide disinfection and can maintain a constant output.
Since installation, the two systems have operated continuously. Test results have shown the system to be achieving log reductions in excess of design specifications.
Wastewater: Scotland
In 2007, Scottish Water decided to upgrade the Tain WWTW with ultra-violet disinfection technology, which has proven to be particularly effective at reducing the amount of bacteria entering shellfish beds and bathing waters. Scottish Water had previously installed MicroDynamics® UV equipment at a number of its sites, including a wastewater system at Rockcliffe WWTW in 2003 and a closed vessel drinking water vessel at Larchfield in 2007. These units had all been performing well with minimal supervision and maintenance required. Based on this experience, Scottish Water awarded Severn Trent Services and Ashbrook Simon-Hartley a contract to supply three MicroDynamics OCS 660 microwave UV generation units to Tain WWTW.
The modular MicroDynamics units were installed in October 2007. More than one year after its installation at the Tain WWTW, no significant maintenance of the units has been required other than the relatively minor replacement of one fan. The equipment is still performing well and meeting the stringent requirements to the EU Shellfish Directive, while continuing to use the original lamps and components. According to Kevin McCreath, asset planning manager – Ness Region, “The performance of the MicroDynamics equipment at Tain has been excellent. A key factor for us in selecting the equipment was its reliability and ease of maintenance.”
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