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THE PLATING AND ELECTRONICS INDUSTRIES ARE REQUIRED BY STATEAND FEDERAL REGULATIONS TO REMOVE TOXIC, HEAVY METALS FROM WASTEWATER STREAMS BEFORE DISCHARGE. THE SEMICONDUCTOR AND AND PRINTED CIRCUIT INDUSTRY ALONE REMOVED OVER 7.2 TONS OF HEAVY METALS FROM WASTEWATER IN 1983. MUCH OF THE RECOVERED METALS ARE DISCARDED AS SLUDGES, BECAUSE TECHNIQUES FOR RECOVERING AND SEPARATING THE METAL IONS ARE U ...

THE CONTRACTOR SHALL DEVELOP A FUZZY SET METHODOLOGY FOR UNCERTAINTY ANALYSIS IN PROBABILISTIC SEISMIC SAFETY ASSESSMENT OF NUCLEAR POWER PLANTS. FUZZY SET LOGIC WILL BEUSED FOR COLLECTING, QUANTIFYING AND PROPAGATING SUBJECTIVE,ENGINEERING JUDGEMENT USED IN THE UNCERTAINTY ANALYSIS. IN PHASE I, FEASIBILITY OF THE PROPOSED APPROACH WILL BE DEMONSTRATED BY APPLYING IT TO SELECTED PARTS OF A PROBABI ...

INCREASED EMPHASIS ON THE PROBLEMS ASSOCIATED WITH ING UNDERGROUND STORAGE TANKS AND UNDERGROUND POLLUTION IN GENERAL HAS CREATED A NEED FOR TECHNOLOGY TO REDUCE OR ELIM-INATE THE ASSOCIATED CONTAMINATION. TO DATE, PACKAGE AIR GENERAL HAS CREATED A NEED FOR TECHNOLOGY TO REDUCE OR ELIMINATE THE ASSOCIATED CONTAMINATION. TO DATE, PACKAGE AIR STRIPPING UNITS SEEM TO HAVE RECEIVED THE BROADEST AC- CE ...

IONICS RESEARCH INC. (IRI) HAS DETERMINED THAT UNCOATED CAPILLARY COLUMNS CAN BE USED TO CONCENTRATE ORGANICS FROM WATER. THE METHOD IS EXCEEDINGLY SIMPLE AND RAPID (10 MINUTES PER 100 ML), YET EFFECTIVE. IRI PLANS TO INVESTIGATE THE POTENTIAL OF THIS TECHNIQUE FOR THE DEVELOPMENT OF AN INSTRUMENT SUITABLE FOR THA NALYSIS OF ORGANICS AT THE PART-PER-TRILLION LEVEL IN WATER AND WASTEWATER. SUCH AN ...

THIS PROPOSAL IS CONCERNED WITH THE ECONOMIC REMOVAL OF HYDROGEN SULFIDE, A TOXIC MATERIAL, FROM SOUR NATURAL GAS AND PETROLEUM PRODUCTS. THE CURRENT STATUS OF H2S PROCESSING IS REVIEWED. THE CHEMISTRY OF SULFUR AND SULFIDE IN AQUEOUS SOLUTIONS AND PRELIMINARY WORK ALREADY CARRIED OUT IN THE CONTINUOUS ELECTROLYSIS OF H2S TO YIELD HYDROGEN AND SULFUR ARE BRIEFLYDISCUSSED. THE ESTIMATED ECONOMIC GA ...

Trusted biometric validation of individual identities has never been more important. Several contributing factors are the increase in global terrorism, identity theft and the increase in legislation which are driving the accelerated adoption of biometric technology. Unfortunately, the biometrics industry has not actively responded to the changing market conditions being driven by the explosion in ...

X-ray fluorescence spectroscopy is a widely used and extremely sensitive analytical technique for qualitative as well as quantitative chemical analysis. Superconducting Transition Edge Sensor (TES) microcalorimeter detectors have now been developed that achieve an energy resolution of 2 eV (full width at half maximum) for 1.5 keV X-rays, which is sufficient to enable the measurement of the small s ...

This EPA SBIR Phase I proposal addresses the need for more widespread electricity usage conservation and user cost reduction via behavioral changes and via efficiency improvement. Efficiency improvements are through equipment and appliance change out but also via long term efficiency monitoring. This needs to be a sustaining level of conservation and efficiency verification as opposed to a one t ...

New pollution control technologies are needed for small oil- and coal-fired industrial boiler located throughout the United States. Although each unit is relatively small, the vast number of these units creates a significant air pollution source, especially in heavily populated areas, that emits particulate matter (PM) and other air pollutants. In the EPA boiler MACT regulations, it was estimate ...