Award Data

THE PURPOSE OF THE PROPOSED PROJECT IS TO PROVIDE A PROOF OFCONCEPT EVALUATION OF AN INSTRUMENT CAPABLE OF MEASURING NO,02, AND SO2 USING UV ABSORPTION AND A PHOTODIODE ARRAY SPECTROPHOTOMETER. IF SUCCESSFUL, THIS INSTRUMENT WOULD SATISFY ALL THE REQUIREMENTS OF A CONTINUOUS EMISSION MONITORING SYSTEM REQUIRED BY THE ENVIRONMENTAL PROTECTION AGENCY. SINCE ALL THREE GASES WOULD BE MEASURED WITH A S ...

IN NOVEMBER OF 1984 THE PRESIDENT SIGNED INTO LAW A SET OF FAR-REACHING AMENDMENTS TO THE RESOURCE CONSERVATION AND RECOVERY ACT OF 1976. UNDER THE NEW LAW, LAND DISPOSAL OF ALL HAZARDOUS WASTES IS TO BE BANNED OVER THE NEXT FIVE YEARS. WASTE REDUCTION, RECYCLE, AND INCINERATION ARE EMPHASIZED. PARTICULARLY TARGETED ARE WASTE STREAMS CONTAINING HALOG ENATED SOLVENTS AND ARSENIC DUE TO THE THREATS ...

COMMERCIALLY AVAILABLE IN-STACK TRANSMISSMETERS FOR OPACITY MEASUREMENT PRESENTLY ONLYHAVE THE CAPABILITY OF A ONE POINTDYNAMIC UPSCALE CHECK OR NO DYNAMIC UPSCALE CHECK DURING OPERATION. IN ORDER TO PERFORM NECESSARY MULTI-POINT AUDITSOF LINERARITY CHECKS, THE INSTRUMENT MUST BE REMOVED FROM SERVICE OR AT THE LEAST BE MANUALLY FITTED WITH AN EXTERNAL AUDIT DEVICE. THIS REQUIRES ACCESS TO THE INST ...

THE OBJECTIVES OF THIS RESEARCH ARE THREE-FOLD: (1) TO DEV ELOP TECHNIQUES FOR RAPID START-UP OF ANAEROBIC DIGESTERS; (2) TO DEVELOP PROCEDURES FOR RAPID RECOVERY OF UPSET DIGESTERS WHICH HAVE BEEN SHOCKED BY OVERLOADING, TOXIC SUBSTANCES, OR PH DEPRESSION PROBLEMS; AND (3) TO INCREASE THE OVERALL KINETICS OF ANAEROBIC DIGESTION. REACTION KINETICS MAY BE IMPROVED BY ENHANCING THE GROWTH OF METH AN ...

IRON AND SULFUR BACTERIA ARE PRINCIPAL CAUSES OF BIO FOULING OF WELL SCREENS, PUMPS, TREATMENT AND PROCESSING EQUIPMENT, AND IN EXTREME CASES, DISTRIBUTION SYSTEMS. ASSOCIATED PROBLEMS ARE HIGH-PUMPING COST, RAPID PUMP AND VALVE DETERIORATION, CORROSION OF ALL FERROUS MATERIAL IN CONTACT WITH THE WATER, INCREASED DISEASE RISK (SHIELDING, NURTURING MEDIA), AND BAD TASTE ODOR AND COLOR. THE PROBLEM ...

CHROMIC ACID IS USED FOR ETCHING PLASTICS FOR ELECTROPLATINGAND ELECTROMAGNETIC INTERFERENCE (EMI) SHIELDING. MORE THAN A MILLION POUNDS OF CHROMIC ACID IS USED EVERY YEAR IN THE UNITED STATES OF AMERICA FOR ETCHING PLASTICS. HEXAVALENT CHROMIUM IS HIGHLY TOXIC. REQUIRES EXPENSIVE EQUIPMENT FOR ITS RECOVERY FROM THE WASTEWATER AND THE SLUDGE REQUIRES PR PROPER DISPOSAL. PLASTIC PLATERS ARE SEEKING ...

IT IS PROPOSED THAT LEE SCIENTIFIC INVESTIGATES AND DEVELOPSNEW AND IMPROVED INSTRUMENTAL METHODS FOR THE ANALYSIS OF N NON-VOLATILE ORGANIC COMPOUNDS IN COMPLEX ENVIRONMENTAL MA MATRICES BY CAPILLARY COLUMN SUPERCRITICAL FLUID CHROMATO GRAPHY (SFC). NON-VOLATILE COMPOUNDS OF SPECIFIC INTEREST INCLUDE HEAVY-MOLECULAR-WEIGHT, POLAR, AND THERMAL-LABILE SPECIES WHICH HAVE PROVEN TO BE DIFFICULT OR IM ...

A PROPOSAL IS PRESENTED OUTLINING A RESEARCH STUDY DIRECTED TOWARD TREATMENT OF CHEMICAL MILLING WASTE FOR RECOVERY OF COBALT, CHROMIUM, AND NICKEL. THE APPLICATION OF A NEW TECH NOLOGY IS PROPOSED THAT IS SELECTIVE AND COST EFFECTIVE FOR RECOVERY OF THESE THREE ELEMENTS. THE PROCESS IS ON OF SOL SOLUTION PURIFICATION BY SELECTIVE PHOSPHATE PRECIPITATION. THE PRECIPITATION IS SELECTIVE TOWARD TRIV ...

A HIGH RATE DOWNFLOW SPARGED BIOLOGICAL FIXED FILM REACTOR DESIGN HAS BEEN PROPOSED. THIS SYSTEM OFFERS AN IMPROVEMENT OVER PREVIOUS DESIGNS IN THAT INSTEAD OF CONSTANT AIR S SPARGING, THE AIR SPARGING TO THE PACKED SEED IS PULSED TO OFFER MORE EFFICIENT OXYGEN UTILIZATION. ANOTHER IMPROVEMENTIS THAT BECAUSE OF THE PULSING AIR, THE AIR HEADER SUPPLY C CAN BE LOCATED BELOW THE MEDIA TO PERMIT FULL ...

RADON DAUGHTERS IN INDOOR AIR REPRESENT A GREATER RADIOLO LOGICAL HAZARD TO THE POPULATION THAN ANY OTHER NATURALLY OCCURRING OR MAN-MADE RADIATION SOURCE. A SYSTEM TO DETECT THE ALPHA PARTICLES EMITTED BY THESE RADIOLOGICALLY ACTIVE RADON DAUGHTERS IS PROPOSED. A KEY ELEMENT OF THIS WORK IS TO PROVIDE A SUITABLE CALIBRATION BETWEEN DETECTED ALPH A ENERGY AND INDOOR RADIOLOGICAL HAZARD. THE INSTRU ...