Press Release

Calgon Carbon's C3500-D Announces Evolution of Low Pressure High Output UV Disinfection Technology for Water Reuse

PITTSBURGH, PA  –  10/12/2009

Calgon Carbon Corporation (NYSE:CCC) brings its leading UV technology — the C3500™D — to the market during the 82nd Annual Water Environment Federation Technical Exhibition and Conference (WEFTEC) in Orlando, FL, October 10-14, 2009.

The C3500™D offers an advanced sensor-based control system, which helps achieve unparalleled efficiency in water reuse disinfection applications. The C3500™D utilizes 500 watt lamps in the smallest footprint available to provide overall efficiency and economic savings compared to other Low Pressure High Output (LPHO) systems.

According to Bill Sotirakos, Product Manager, UV Technologies, Calgon Carbon Corporation, the company tapped its research and development infrastructure to develop a technology that would meet or exceed the water reuse guidelines established by the National Water Research Institute (NWRI). Sotirakos added that a completed Validation Report was submitted in July 2009 to the California Department of Public Health.

“Calgon Carbon was able to access its deep research and development capabilities in Computational Fluid Dynamics (CFD) to identify the best possible and most energy efficient system, which, moreover, would meet the NWRI requirements of providing safe, clean water,” said Sotirakos.

The high wattage C3500™D system depends on a unique patent-pending design, which hydraulically “mixes” water across three sets of Delta-shaped (D) wings while minimizing the head loss and exposing the water to a high UV dose to efficiently treat the water.

“Because of the swirling action generated by the three sets of Delta-shaped wings the water is more uniformly exposed to the UV light,” said Sotirakos.

Sotirakos added the C3500™D utilizes calibrated UV sensors and flow rate to control the dose, helping to minimize operating costs and provide longer lamp life. And, because the C3500™D uses fewer lamps than other LPHO systems, that means a smaller footprint as well as decreased installation, and operation and maintenance costs.

“In addition to the ongoing importance of clean, safe water, the economic downturn has further compelled municipalities and businesses to explore next-generation technologies, such as the C3500™D, to better utilize UV disinfection for water reuse,” said Sotirakos.

Technical experts will speak about C3500™D technology in the Calgon Carbon booth (Booth #4945 in Hall B). In addition, Calgon Carbon will give live presentations at the booth on water reuse solutions.

For more information about Calgon Carbon’s leading technology solutions for municipalities and industries,

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