Betaco manufactures heat exchangers and flexible couplings used in air conditioning and refrigeration equipment. As part of a site assistance visit from the TNRCC, several suggestions were implemented to reduce the generation of hazardous waste at Betaco. The major hazardous waste was generated from using a lacquer based coating on the heat exchangers. A satisfactory water based coating system was found that eliminated this waste stream. Other projects included the replacement of aerosol spray paints with paint-stick markers, elimination of 1,1,1 trichloroethane (TCA) as a cleaning solvent and using drawing soap instead of lacquer on their tube mills.
A coating manufacturer, Rexcell Coating in El Paso, was able to formulate a water based coating for Betaco to use. Rexcell was also a company visited by the site assistance program, which got these two companies together to solve their hazardous waste problem.
Over the last five years Betaco has gone from a large quantity generator of hazardous waste to a conditionally exempt small quantity generator. The water based paint program alone has eliminated the generation of approximately 200 gallons of hazardous paint waste and 220 gallons of TCA a year.
Details of Reductions
Additional Information :
The water based paint is a little cheaper than the lacquer based system and saves the disposal of approximately four drums of hazardous waste a year. This is an immediate savings of a couple of thousand dollars a year to Betaco.