Articles & Case Studies

atg UV drives value & performance into ageing UV systems

Posted: Thursday 1st October 2009

atg UV Technology were selected by Dee Valley Water to retrofit their existing Ultraviolet disinfection facility with two state of the art atg UV Technology treatment systems, complete with an associated SPECTRA control panel.

atg UV engineers minimised costs and inconvenience for Dee Valley Water, who supply water to over 250,000 people in the North West of England and the North East of Wales by modifying the chambers of their existing ageing UV system to suit atg’s advanced UV technology and SPECTRA control system. Each chamber was modified separately allowing the other stream to function as normal ensuring no disruption to the mains water supply was caused.

The new atg UV treatment package consisted of two UV disinfection systems to provide protection against water-borne pathogens such as the chemically resistant Cryptosporidium. The modification process involved fitting new UV monitor probes to the existing chambers, and then adding modified end flanges to accommodate new atg specified UV lamps. Finally an atg UV automatic quartz cleaning system was added to ensure that the UV treatment runs at optimum performance continuously.

Two atg UV’s SPECTRA control systems were included in place of the previous single control system to ensure the package was now truly a duty-stand-by package, ensuring full automatic control of the disinfection process. Using microprocessor technology, SPECTRA combines many innovative features such as fully automatic start-up and shut down, multiple lamp monitoring, process interlocks and automatic quartz cleaning. Additionally SPECTRA’s on board data logger allows engineers to easily download performance data to a PC or Laptop for review.

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