Award Data

Replacements for the halocarbons banned by the Montreal Protocol will be producedby technologies which generate spent catalysts as a waste byproduct. These spentcatalysts contain tin, a valuable metal resource, in a matrix that willundoubtedly be classified as hazardous with regard to its disposal.Chemical & Metal Industries, Inc., proposed in this Phase I effort to investigatetwo alternative tec ...

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CHROMATE CONVERSION COATINGS ARE ROUTINELY APPLIED TO CADMIUM IN ELECTROPLATING. THIS METAL FINISHING PROCESS GENERATES LARGE QUANTITIES OF HAZARDOUS HEXAVALENT CHROMIUM AND HEAVY-METAL WASTE. THIS IS A MAJOR ENVIRONMENTAL CONCERN. CONSEQUENTLY, AN ENVIRONMENTALLY BENIGN COATING FINISH IS PROPOSED AS A SUITABLE ALTERNATIVE TO THE CHROMAT CONVERSION COATING. THIS COATING WILL BE APPLIED USING THE U ...

SELENIUM IS PRESENTLY THE PRIMARY WASTEWATER TREATMENT CHALLENGE FOR MANY WEST COAST PETROLEUM REFINERIES, AND SELENIUM IS ALSO PRESENT IN SIGNIFICANT QUANTITIES IN WASTEWATERS FROM COAL-FIRED POWER PLANTS. A SUSPECTED CARCINOGEN, SELENIUM IS ALSO HARMFUL TO FISH AND FOWL WHEN PRESENT IN SURFACE WATERS. PROCESSES DEVELOPED FOR SELENIUM REMOVAL FROM DRINKING WATER (ANION EXCHANGE AND ACTIVATED ALUM ...

WIDELY USED CHLORINATED HYDROCARBONS (CHCS) SUCH AS TRICHLOROETHYLENE, PERCHLOROETHYLENE AND METHYLENE CHLORIDE ARE RECOGNIZED AS CARCINOGENS AND MUTAGENS, AND CONTRIBUTE TO GLOBAL WARMING AND OZONE DEPLETION. THEREFORE, THERE IS AN INCREASING NEED FOR LOW COST AND EFFICIENT METHODS FOR THE CONTROL OF CHC EMISSIONS. CATALYTIC INCINERATION IS GENERALLY THE TECHNOLOGY OF CHOICE BECAUSE IT HAS LOW EN ...

The final prototype of the Microcircuit Board Repair apparatus will be capable of laying down or lifting metal strips with micrometer dimensions. Under real time computer control, the translation stages will be fully automated or manually controlled. The end user will monitor the process in real time using a camera attached with the source. Laying down the metal lines will be done using Laser C ...

Breathable release coatings that can withstand processing conditions up to 750F are needed for use on ceramic tooling. In situ removal of volatiles in solvent-based composite processing is a critical issue that will enable production of high quality parts at lower cost per part. Current release coatings meet neither the temperature nor the solvent transport requirements of solvent-based composit ...

Q-DOT proposes to develop a unizue, lower-power, low-cost beamformer for portable imaging sonars. The original two chip set will form 100 beams from 100 input channels. A 0.3 cm2 BiCMOS chip comprises a low noise amplifier (LNA), a time-gain control (TGC), an apodizer and a Delta-Signma modulation (ADC) for each channel. A 0.66 cm2 CMOS chip accepts 100 digital input channels and produces 100 d ...

Pattern recognition systems using optical correlation are being developed. The optical correlator is a powerful tool since it simultaneously processes large data arrays. This capability reduces data handling and process control, makes the system less susceptable to obstruction and increases throughput. An optical correlator is also a phase sensitive detector. It can read an optical phase mask ...

Drinking water filtration plants nationwide are failing to adequately reduce the public health risk due to exposure to sometimes lethal Cryptosporidium and other microbial particle levels. New regulations also will require reduction of dissolved organic carbon (DOC) to minimize the risk from potentially carcinogenic reaction by-products resulting from disinfection. Particle and DBP precursors ar ...