Taiwan Wastewater Management and Cleaner Technology for PWB Industry Jane Tran Orange County Sanitation District
Taiwan Industrial Park u Water u 95 industrial parks u 8, 000 u 41 Pollution Control Act industries industrial parks have their own treatment plants (POTWs), treatment capacity = 100. 3 MGD
Taiwan Industrial Park u NPDES permits applying to all industrial parks and industries with direct discharges (maximum discharge limits only) u Rely on self-monitoring for compliance monitoring u Currently no pretreatment controls between POTWs and IUs
Kuan-Yin Wastewater Treatment Plant u Complete primary, secondary, and tertiary treatment processes u Total capacity: 8. 2 MGD u Industrial profile: food (1%), chemical (34%), dyeing (33%), plastic (2%), metal processing (8%), electroplating (7. 5%), steel mills (2%), machinery (5. 5%), paper mills (2%), others (5. 5%)
Kuan-Yin Wastewater Treatment Pilot Plant u Operator u Perform training and evaluate feasibility study u Research u Apply and development practical and field experience for students and operators
Kuan-Yin Wastewater Treatment Pilot Plant Biological treatment system: activated sludge and contact oxidation u Chemical treatment system: cyanide destruction, chromium reduction, hydroxide precipitation, flocculation, clarification, filterpress, O&G separation u Advanced treatment system: sand filter, carbon adsorption, ion-exchange, ultrafiltration, reverse osmosis, disinfection u
Compeq u Locations: China, Taiwan, Singapore, USA u Up to 16 layers PWB mass production u 1. 9 million SQFT/month
Compeq Heavy metal streams (400 gpm): chemical precipitation, ion-exchange, electrolytic recovery (500 lbs Cu/day), RO u Organic streams: biological treatment system, electrolytic Fenton system u All systems are locally made with a team of 8 engineers u ISO-14001 Environmental Management System u
Compeq u Spill containment problems: overflow and leaks u Water reduction and reuse opportunity u Waste segregation needs u No run-off or storm water control u Pollution prevention opportunity
Nan Ya u Up to 10 layers mass production u Mining their own copper for substrates, inner layers, and ground planes u All manufacturing processes are automatic u Financial data: capital = $1. 01 B; assets = $4. 07 B; revenue = $3. 29 B; net income = $0. 31 B
Nan Ya u Industrial treatment systems: chemical precipitation, hydrogen peroxide/ferrous sulfate oxidation, and incineration technologies u Biological treatment systems: primary, secondary, and tertiary u Power generation plant
Nan Ya Lodging accommodations (3 large apartment complexes on site) u Medical facilities, supermarkets, bakery u Movie theater, full scale dining facilities u Sport facilities u Recycling program with profits directly benefiting the employees u
Design for the Environment (Df. E) PWB Project u U. S. EPA u Interconnecting and Packaging Electronic Circuits (IPC) and its member companies u University of Tennessee’s Center for Clean Products and Clean Technologies u Other interest parties: academic, research, public interest representatives
Df. E - PWB Project u “Direct metallization” technologies without the use of the electroless copper solutions u Alternatives to hot air solder leveling process that do not use lead u Cleaner surface finishing technologies: organic solder protectorates, immersion Pd, immersion Ag, immersion Sn, electroless Ni/immersion Au, electroless Ni/electroless Pd/ immersion Au
Making Hole Conductive Cleaner Technology u Carbon u Conductive Polymer u Graphite u Non-Formaldehyde Electroless Copper u Organic-Palladium u Tin-Palladium Publication: PWB Cleaner Technologies Substitutes Assessment: Making Holes Conductive, Vol. 1&2; EPA 744 -R-97 -002 a and 002 b; August 1997
Df. E Information Products u Cleaner technologies substitutes analysis: making holes conductive u Implementing cleaner technologies in the PWB industry: making holes conductive u PWB industry and use cluster profile u PWB pollution prevention and control: survey results analysis u Pollution prevention case studies and project fact sheets u Federal regulations affecting the electronics industry
To Obtain Information or Publications for the Df. E - PWB Project Pollution Prevention Information Clearinghouse (PPIC) U. S. Environmental Protection Agency 401 M Street, SW (7409) Washington, DC 20460 Tel: 202 -260 -1023 Fax: 202 -260 -4659 Email: ppic@epamail. epa. gov Df. E: www. epa. gov/dfe IPC: www. ipc. org/html/ehstypes. htm#design
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