THE AIR FORCE HAS SEVERAL LARGE AIRCRAFT MAINTENANCE FACILITIES STRIPPING PAINT FROM AIRCRAFT AND GENERATING LARGE QUANTITIES OF PHENOLIC STRIPPING WASTEWATER.

THE AIR FORCE HAS SEVERAL LARGE AIRCRAFT MAINTENANCE FACILITIES STRIPPING PAINT FROM AIRCRAFT AND GENERATING LARGE QUANTITIES OF PHENOLIC STRIPPING WASTEWATER. DISCHARGE OF THESE WASTES INTO PUBLICLY OWNED TREATMENT WORKS (POTW) IS A PREFERRED ALTERNATIVE TO ONSITE TREATMENT. THE PRIMARY OBJECTIVE OF THIS PROGRAM IS TO DETERMINE EXPERIMENTALLY THE CONDITIONS UNDER WHICH PHENOL CAN BE REMOVED FROM THE WASTEWATER IN A SEWAGE/SEWER SYSTEM, PRIOR TO TREATMENT IN THE POTW. THE LABORATORY PROGRAM INVOLVES DETERMINING THE KINETICS OF PHENOL BIO-OXIDATION AND ADSORPTION RELATIVE TO SEWAGE, AND ESTABLISHING THE CONTROLLING BIO-OXIDATION RATES. THE MAJORITY OF THE TESTS WILL BE CARRIED OUT IN A BATCH REACTOR WHERE THE FOLLOWING TEST VARIABLES WILL BE CONTROLLED: WASTEWATER AND SEWAGE COMPOSITION, PROPORTION OF WASTEWATER AND SEWAGE, TEMPERATURE, DISSOLVED OXYGEN LEVELS AND THE DEGREE OF STERILIZATION OF THE SEWAGE. THE EFFECT OF OXYGEN TRANSFER FROM THE HEADBOARD SPACE IN A SEWER TO THE MIXED SEWAGE/WASTEWATER FLOW WILL BE STUDIED UNDER DYNAMIC CONDITIONS IN A CLOSED-CIRCUIT CONTINUOUS FLOW REACTOR.