Printed-circuit-board manufacturer maximizes recycling opportunities

Journal Article · Mon Feb 01 00:00:00 EST 1993 · Hazmat World; (United States)

OSTI ID:5532024

Edelstein, P ^[1]

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1. CP Chemicals Inc., Fort Lee, NJ (United States)

A major New England printed-circuit-board manufacturer has avoided land disposal of several metallic wastes for more than 15 years by recycling them offsite. For example, the company uses ammoniacal etchant to etch copper. Waste generated by this process is used by an offsite recycler to produce copper compounds for pressure-treated lumber and for use as a catalyst. Sodium persulfate and peroxide-sulfuric micro-etchants are used at the facility, generating a crude copper sulfate solution, and copper sulfate also is the basis for the company's electroplating process. Wastes from all of these processes are used by an offsite recycler to produce copper compounds that are sold for use in wood treatment and as mining reagents. Finally, metal hydroxide sludge generated by the company's wastewater treatment system contains substantial amounts of copper, which is sent for refining at a copper smelter.

• OSTI ID: 5532024
• Journal Information: Hazmat World; (United States), Vol. 6:2; ISSN 0898-5685
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COPPER
RECYCLING
PRINTED CIRCUITS
MANUFACTURING
INDUSTRIAL WASTES
ELECTRONIC CIRCUITS
ELEMENTS
METALS
TRANSITION ELEMENTS
WASTES
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management