||Degreaser System Pollution Prevention Evaluation.
Szabo, M. F. ;
Nutter, M. T. ;
||PEI Associates, Inc., Cincinnati, OH.;Air Force Engineering and Services Center, Tyndall AFB, FL. Engineering and Services Lab.
||1 Sep 90
||EPA-68-02-4284; 3788; 30; AFESC/ESL-TR-90-33 ;
Air force ;
Pollution abatement ;
Environmental protection ;
Air pollution ;
Industrial hygiene ;
Emission control ;
Environmental chemical substitutes ;
Air pollution abatement ;
Occupational safety and health ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The purpose of this project was to investigate the capability of various engineering changes to an existing vapor degreaser to reduce solvent emissions to the atmosphere while remaining within the established Air Force exposure limits for 1,1,1-trichloroethane (TCA). A 1970 vintage vapor degreasing system had been converted from trichloroethylene to TCA and fitted with a lip vent exhaust system to decrease worker exposure. Solvent consumption with this configuration was two to three 55-gallon drums weekly, all presumed to be emmitted to the atmosphere via the lip vent. In sequence, various modifications to the degreaser and operating procedures were instituted to define their capability to reduce emissions and comply with exposure limit requirement. They include decrease and elimination of lip vent suction, a freeboard extension, add-on chiller, and a freeboard extension plus add-on chiller.
|NTIS Title Notes
||Final rept. Nov 89-Sep 90.
||68A; 68G; 71Q; 57U; 74E
||PC A06/MF A02