LEE International

Lee Engineering Enterprises International

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INDUSTRIAL PROJECTS

PRINTED CIRCUIT BOARDS

Project Reference General Description of Project Treatment Technologies Employed Portion of Work by LEE Project Dates Start Finish Prolinx  San Jose, CA 20 gpm Closed Loop system Ion exchange regeneration system Design, equipment, manufacturing, startup, training 1997 1997 ISOLA USA  Fremont, CA 10 gpm Closed Loop system Ion exchange off site regeneration Design, equipment, manufacturing, startup, training 1997 1997 ISOLA USA  N Carolina 10 gpm Ion exchange off site regeneration Design, equipment, manufacturing, startup, training 1997 1997 Extended Length Flex Corporation  Redwood City, CA Treatment of wastewater from printed circuit board manufacturing (water recycling) Ion exchange; electro recovery Treatability study; design & construction 1992 1993 General Dynamics  Sunnyvale, CA Treatment of wastewater containing heavy metals and organic substances Ion exchange; vacuum evaporation Treatability study 1989 1989 Mektec, Inc.  Milpitas, CA Treatment of wastewater chemical delivery system for production of copper waste over 3,000 ppm sludge dewatering high purity water supply Chemical treatment; vacuum evaporation; sludge dewatering; ion exchange; activated carbon absorption; UV disinfection Treatability study; design & construction 1988 1989 Amtronics, Inc.  San Jose, CA Treatment of printed circuit manufacturing waste Chemical treatment; sludge dewatering Turnkey 1985 1985 Santa Clara Circuits  North Redmond, WA Treatment of printed circuit board manufacturing waste Chemical treatment of heavy metals with complex agents; sludge dewatering Treatability study; design & construction 1985 1985 Sanmina, Inc Treatment of printed circuit board manufacturing waste Chemical treatment; sludge dewatering Turnkey 1984 1985 Citation Circuits  Stockton, CA Treatment of printed circuit manufacturing waste Chemical treatment; sludge dewatering Turnkey 1984 1984 Bay Area Circuits  Redwood City, CA Treatment of printed circuit manufacturing waste Chemical treatment; sludge dewatering Turnkey 1984 1984 Sigma Circuits  Costa Mesa, CA Treatment of hexavalent chromium, removal of heavy metal; sludge dewatering Chemical treatment; sludge dewatering Treatability study, design, construction, startup and training 1984 1984 South Bay Intl.  San Jose, CA Treatment of printed circuit board manufacturing waste Chemical treatment of heavy metal; vacuum filtration of sludge Treatability study, design, construction, startup and training 1984 1984 Advanced Printed Circuit Tech.  Tempe, AZ Treatment of printed circuit board manufacturing waste Chemical treatment of heavy metals with complex agents; sludge dewatering Treatability study, design, construction, startup and training 1984 1984 Zycon Inc.  Santa Clara, CA Treatment of printed circuit board manufacturing waste Chemical treatment of heavy metals with complex agents; sludge dewatering Treatability study, design, construction, startup and training 1984 1984 Martex Circuits  Mountain View, CA 85 MGD plant to remove copper and lead from printed circuit board manufacturing wastes Chemical treatment of heavy metals with complex agents; sludge dewatering Treatability study, design, site preparation, parking lot & landscaping design; design, manufacture & installation of equipment; construction & maintenance services 1983 1984 Sigma Circuits  Santa Clara/Costa Mesa, CA Two plants, 125 &200 gpm capacity, to remove copper, lead, nickel & hexavalent chromium from printer circuit board manufacturing wastes.  Special consideration was given to accommodate limited space & close proximity to an airport runway Chemical treatment of heavy metal; vacuum filtration of sludge Treatability study, design, manufacture of equipment, construction, startup & maintenance

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