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WATTS NICKEL AND RINSE WATER RECOVERY VIA AN ADVANCED REVERSE OSMOSIS SYSTEM
Citation:
Ludwig, R., C. Schmidt, AND I. Erbas-White. WATTS NICKEL AND RINSE WATER RECOVERY VIA AN ADVANCED REVERSE OSMOSIS SYSTEM. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-93/150 (NTIS PB93229011), 1993.
Description:
This report summarizes the results of an eight month test program conducted at the Hewlett Packard Printed Circuit Board Production Plant, Sunnyvale, CA (H.P.) to assess the effectiveness of an advanced reverse osmosis system (AROS). he AROS unit, manufactured @y Water Technologies, Inc. (WTI) of Minneapolis, MN, incorporates membrane materials and system components designed to treat metal plating rinse water and produce two product streams; (1) a concentrated metal solution suitable for the plating bath, and (2) rinse water suitable for reuse as final rinse. aste water discharge can be virtually eliminated and significant reductions realized in the need .for new plating bath solution and rinse water. he AROS unit performed very reliably during the test program. pproximately 190,000 gallons of rinse water was treated producing 1,100 gallons of recycled concentrated plating bath and saving approximately 750,000 gallons of new deionized rinse water. n addition, approximately $13,000 in reduced wastewater treatment and disposal costs was achieved. perated at full capacity, the Unit capital cost was estimated to have a payback period of approximately 2 years.
