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A REVIEW OF ACID COPPER PLATING BATH LIFE EXTENSION AND COPPER RECOVERY FROM ACID COPPER BATHS
Citation:
Bless*, D R. A REVIEW OF ACID COPPER PLATING BATH LIFE EXTENSION AND COPPER RECOVERY FROM ACID COPPER BATHS. PLATING AND SURFACE FINISHING JOURNAL 88(10):58-63, (2001).
Impact/Purpose:
Information.
Description:
Large quantities of hazardous waste, most in aqueous solution or sludges, are being produced at numerous metal plating and processing facilities in the U.S. Regulatory pressures, future liability, and limited landfill space have driven the cost of metal waste disposal to levels where it is becoming nonviable. For metal finishing operations to remain competitive and in compliance with environmental requirements, companies must focus their efforts on pollution prevention to reduce waste generation and disposal costs, limit liability and restore maximum profits.
By applying the pollution prevention concept, metal finishers can reduce the generation of metal bearing wastes at the source.1 When waste cannot be reduced in the process, the preferred alternative is the recovery/recycling of metals and the maintenance of process solutions used in the metal finishing and primary metals industries. Even though many innovative technologies exist, there is a need to develop and improve sorption-based separation technologies to reduce the discharge of chemicals and minimize the need for wastewater treatment. In 1995, EPA established a Common Sense Initiative (CSI) Subcommittee for the Metal Finishing Industry. The Subcommittee developed a consensus package of cleaner, cheaper, and smarter policy actions for the industry as a whole to test innovative ideas and approaches. For this reason, metals recovery/recycle is an important aspect to consider when the risk to human health and ecological consequences are involved. To maximize pollution prevention: A) water use must be minimized; B) metals must be source reduced or recycled "in-process" or recovered C) contaminants must be removed from the process bath to extend the bath life. This literature search will focus mainly on copper recovery/recycle in acid copper electroplating processes.
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A REVIEW OF ACID COPPER PLATING BATH LIFE EXTENSION AND COPPER RECOVERY FROM ACID COPPER BATHS
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