December
2003
Advances in Wastewater Treatment
Photo Chemical Machining (PCM) is a
manufacturing process that plays a key role in the
production of countless precision and decorative
parts, such as circuitry components, heat sinks,
optical attenuators. grids, meshes, hardware,
jewelry, ornaments, and commemorative pieces. A
wide variety of metals and alloys are common to
the PCM industry. Federal, State, and local
agencies regulate many ofthese metals and alloys,
such as cadmium, chromium, copper, lead, nickel,
silver, and zinc due to their qualitative
characteristics.
Mark K. Racicot and Derek W. Sykes, Capaccio Environmental Engineering, Inc.
