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A NEW METHOD FOR REMOVING ACID RAIN PRECURSORS FROM COAL-FIRED BOILERS HAS BEEN CONCEIVED. THE CONCEPT INVOLVESA TAIL-END SCRUBBER RETROFIT FOR INSTALLATION IN PLANTS WHICH PRE-DATE THE 1970 CLEAN AIR ACT. THE CONCEPT IS HIGHLY INNOVATIVE AND HAS MANY ADVANTAGES OVER OTHER SORBENTINJECTION PROCESSES. HETEROGENEOUS REACTIONS BETWEEN SO2 AND CALCIUM-BASED SORBENTS ARE AFFECTED BY THE MASS TRANSFER B ...

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COAL TAR IS A BY-PRODUCT OF THE COAL GASIFICATION PROCESS USED WIDELY BETWEEN 1820 AND 1950 TO PRODUCE A NATURAL GAS SUBSTITUTE. DURING THAT TIME, BILLIONS OF GALLONS OF TAR WERE PRODUCED AT MORE THAN 1500 GAS MANUFACTURING FACILITIESLOCATED THROUGHOUT THE U.S. A LARGE PORTION OF THIS WASTE TAR REMAINS IN STORAGE OR WAS DISPOSED OF BY INJECTION INTO SUBSURFACE SITES. COAL TAR IS A MIXTURE OF HYDRO ...

RECENT PROMISING DEVELOPMENTS IN THE PETROLEUM INDUSTRY "PROFILE MODIFICATION TECHNOLOGY" (PMT) WILL BE EVALUATED FOR THEIR APPLICATION TO LEAKING LANDFILL SITES. PROFILE FLOW MODIFICATION TREATMENTS ARE USED TO INCREASE FLOW RESISTANCE IN HIGH PERMEABILITY AREAS FAR (75 FEET TO AS MUCH AS 1000 FEET) FROM THE INJECTION WELLBORE. THESE TREATMENTS CAN WITHSTAND FORMATION PRESSURES AND TEMPERATURES U ...

OPERATING STRATEGIES HAVE BEEN DEVELOPED FOR BIOLOGICAL SEQUENCING BATCH REACTOR (SBR) TREATMENT OF BOTH MUNICIPAL WWASTE (I.E. LOW-STRENGTH WASTES) AND INDUSTRIAL WASTES (I.E.HIGH-STRENGTH WASTES CONTAINING DIFFICULT TO DEGRADE ORGANICS). SBR SYSTEMS SHOULD ALSO OFFER ADVANTAGES FOR BIOLOGICAL TREATMENT OF MIXED MUNCIPAL AND INDUSTRIAL WASTEWATERS THAT ARE RELATIVELY LOW STRENGTH, BUT CONTAIN INO ...

NEW IDEAS ARE PRESENTED ON THE COVALENT ATTACHMENT OF CHELATING FUNCTIONALITIES TO A COMMON, INEXPENSIVE SORBENT MATERIAL, WHICH CAN THEN COMPLEX HEAVY METAL IONS IRREVERSIBLY. THE EFFICIENT REMOVAL OF LEAD, CADMIUM, CHROMIUM, MERCURY, ZINC, NICKEL, COBALT, IRON, AND COPPER ISANTICIPATED. THE COVALENTLY ATTACHED LIGANDS ARE EXPECTED TO BE STABLE TOWARDS HYDROLYSIS AND PH VARIATIONS. THE CAPACITY O ...

THE PHASE I RESEARCH WILL COMPLETE DEVELOPMENT OF A MATHEMATICAL MODEL AND CONDUCT CONTINUOUS FLOW BENCH-SCALE STUDIES TO EVALUATE THE FEASIBILITY AND APPLICABILITY OF A PROPOSED ALTERNATIVE OFFGAS VOC CONTROL STRATEGY. THE PROPOSED SYSTEM UTILIZED OFFGAS CAPTURE FROM WASTEWATER TREATMENT AND STORAGE UNITS FOR RECYCLE TO AN AEROBIC BIOLOGICAL TREATMENT PROCESS. THE RECYCLED GAS PHASE WILL INCREASE ...

STUDIES INDICATE THAT STRAIGHT SEPTAGE INTRODUCTION TO ACT IVATED SLUDGE PLANTS CAUSES SHOCK LOADING AND SUBSEQUENT VIOLATION OF EFFLUENT PERMIT STANDARDS. THIS PROJECT INTENDS TO EVALUATE DEWATERING OF SLUDGE BY THEUSE OF WIRE CLOTH SCREENING TO DETERMINE IF THE DEWATERED SLUDGE MEETS LANDFILL ACCEPTABILITY STANDARDS. IT INTENDS A ALSO TO DETERMINE IF THE RETURN OF THE FILTRATE TO THE S SEPTIC TA ...