Pollution Control Device

BHA Group Inc.'s PrecipTech Power Guard SQ-200 automatic voltage controller, combined with a remote computer, is an automatic management system for smoke-cleaning precipitators. It is the second generation of the SQ 100 developed at Langley Research Center, and was commercialized by two NASA employees. An electrostatic precipitator cleans the smoke by removing particulate matter from smokestack gases before gases are expelled into the atmosphere. Smokestack gas is passed through a precipitator chamber and exposed to an electrostatic field; dust particles in the gas become electrically charged, migrate to collection surfaces and are captured." Developed under a NASA program seeking a way to dispose refuse the system monitors sparking automatically adjusts to changes in operating conditions and does not require a skilled operator."

Full article: http://hdl.handle.net/hdl:2060/20020087605