NYS Governor's Awards for Pollution Prevention - HADCO Corporation
HADCO Corporation, Owego
HADCO Corporation-Owego Division, is a large volume manufacturer of dense, fine-line, high- technology printed circuit boards. The Owego Division employs over 850 people who produce over 40,000 square feet per week of circuit boards used in a number of computing, tele-communications, and automated industrial equipment applications.
Through implementation of pollution prevention and continuous quality improvement programs, HADCO reduced solvent emissions from a masking operation, eliminated the use of chlorinated solvents, recycled copper bearing scrap, and reduced the quantity of metal hydroxide residue sent off site for reclamation.
Methodologies and Procedures
HADCO accomplished improvements in pollution prevention using material substitution, process modifications, and by increasing their recycling programs.
Masking Solvent Emissions
HADCO began their process changes by using a modified coating formulation to reduce the use of hazardous materials. They also eliminated use of solvents considered hazardous air pollutants under the Federal Clean Air Act. Masking solvent emissions were reduced by 20 percent due to the higher solids content of the coating formulation.
Cleaners and Degreasers
By modifying existing equipment and adding a rinse station, HADCO was able to use an aqueous cleaner and eliminate use of 1,1,1-trichloroethane as a board cleaner. In addition, by purchasing a specialized screen cleaner, a non-chlorinated cleaner was substituted for methylene chloride.
HADCO installed a sludge dryer for the metal hydroxide residue generated from the treatment of various electroplating wastes which has reduced the volume and mass of residue shipped off site for reclamation.
Metal Scrap Recycling
HADCO has continued to enhance its recycling programs; one major step was to include the recycling of all copper-bearing scrap laminate.
The change in coating formulation has eliminated the use of hazardous solvents in this process, and reduced emissions by 20 percent. This change has also produced some process enhancements and savings in raw material cost.
A change to aqueous-based cleaners has resulted in reducing plant emissions of 1,1,1-trichloroethane and dichloromethane by over 100,000 pounds per year. In addition, this has reduced the generation of solvent waste over 95 percent.
The sludge dryer has reduced the generation of waste water treatment residue, reducing costs and any hazards this material may pose in transportation and reclamation. Cost savings in drying the treatment residue has produced a payback on the drying equipment of less than 16 months.
Recycling of all scrap copper laminate has eliminated the landfilling of over 100,000 pounds per year of this copper bearing material reducing solid waste disposal costs by almost $4,000 per year.
By improving the treatment process, the generation of photopolymer resist treatment residue has been reduced by 50 tons per year.
Installation of a secondary distillation process that further reclaimed a non-halogenated solvent resulted in the reclamation of over 2500 gallons per year.
Any comments or questions?
Contact us at: 625 Broadway, Albany, NY 12233-1750;
518-402-9469 (phone); 518-402-9168 (fax)
This page was last modified March 8, 1999