Example of a Technology Connection Request
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
A company that conducts nondestructive testing of machine parts is looking for ways to meet the federal air toxic regulation (the "Solvent Cleaning Standard") for halogenated solvent cleaning machines under the Clean Air Act. The company is currently using a trichloroethylene (TCE) degreasing machine and is concerned about the level of emissions. The company may be interested in developing an alternative to TCE for the degreasing process. Please respond via e-mail within seven days.
Excerpts From Responses Received
“The cleaning process with trichloroethylene is required because of the lubricant being used to work the metals. Substitute the lubricant with environmentally safe Pantera-Oil (molybdenum suspended in soy oil), and cleaning is accomplished with warm water and soap. Pantera-Oil is currently in use in deep-draw, bearing/lapping, and machining/metal removal processes. Pantera-Oil is proven to use less than 50 percent of the amount currently used with petroleum products.”
“TCE can be effectively removed from vapor phase and water by FORAGER Sponge, Type O. This product is described on the Dynaphore Web site . Samples can be provided for evaluation. Current selling price of the Type O Sponge is $135 per cubic foot. When the Type O Sponge saturates with TCE, it can be regenerated by mild heating to 50 degree Celsius.”
University of Illinois
Newmark Civil Engineering Laboratory
Patrick D. Sullivan
“The Activated Carbon Fiber Cloth/Electrothermal Desorption process uses a new high-performance adsorbent, which is regenerated by direct electrical heating. This process yields a solvent recovery system that uses seven times less adsorbent and about half the energy of conventional solvent recovery systems. The process is especially well suited to TCE recovery. This technology is being developed through efforts supported by the University of Illinois, the U.S. Army, and the U.S. Air Force."
Closed-loop vapor degreaser with vacuum drying technology
Verification: CT DEP Pollution Prevention Case Study With PERO and CT Spring & Stamping Corp.
“The PERO Corporation is a manufacturer of closed-loop cleaning and degreasing equipment for industrial parts. We offer systems with immersion, flooding, rinsing, ultrasound, and vapor cleaning cycles. Many systems are outfitted with vacuum drying, ultrafiltration, and automatic loading options. We comply with National Emissions Standards for Hazardous Air Pollutants (NESHAP), and state and local regulations for hazardous air pollutants. We use EPA Significant New Alternatives Policy (SNAP)-approved solvents. We have over 1,500 systems installed worldwide.”