River water is filtered for use in an electronic disk manufacturing facility in Hokkaido, Japan

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Courtesy of New Logic Research, Inc.

New Logic International installed its Vibratory Shear Enhanced Processing (VSEP) Phase I system in July, 1997, and the Phase II system in August 1998 at a major international electronic disk manufacturing facility at Hokkaido Island located in Northern Japan. The VSEP is used for treatment of river water for ultrapure water production at this facility. The VSEP system uses an ultrafiltration membrane module and is able to treat river water in order to remove or reduce color, turbidity, permanganate consumption, and total iron below the required limits. The economics of installing this system are very attractive. The application of VSEP membrane technology to treat river water for ultrapure water production at electronic disk fabrication facilities is found to be an attractive economic alternative to conventional water treatment technology.

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