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The Bush Administration recently proposed a 90 percent reduction of air pollution emissions from off-road diesel equipment. The Administration indicated that diesel emissions are responsible for large amounts of particulate and NOx emissions from off-road construction, farm, mining, and locomotive and marine engines. A primary approach used to reduce NOx emissions is exhaust gas recirculation (E ...

The Bush Administration recently proposed a 90 percent reduction of air pollution emissions from off-road diesel equipment. The Administration indicated that diesel emissions are responsible for large amounts of particulate and NOx emissions from off-road construction, farm, mining, and locomotive and marine engines. A primary approach used to reduce NOx emissions is exhaust gas recirc ...

The current flue gas purification technologies are expensive, energy intensive, and secondary pollution generating. Most of these technologies only remove a single pollutant from flue gases. For example, the prevailing limestone-based scrubber not only is expensive and energy consuming, but also generates a large amount of liquid and solid wastes. The goal of the Phase I research proj ...

The SBIR Phase I research project was very successful. Field results in commercial applications showed an operational air/volatile organic compound (VOC) selectivity of 27. Performance surpassed the California Air Resource Board (CARB) emissions goal. Equally as important, Compact Membrane Systems, Inc. (CMS) demonstrated further membrane improvements with a novel membrane product conc ...

Ozone treatment of wastewater to destroy organic contaminants prior to discharge into the environment is an extremely effective advanced oxidation technology. To date the use of this powerful technology has been limited in part by the relatively high capital costs of an efficient ozone to water, gas-liquid, mass transfer system. Existing ozone injection devices must overcome the inherently low m ...

Lean burn spark engines are a promising technique to further reduce both NOx and hydrocarbon/carbon monoxide (HC/CO) engine emissions. Higher lean burn levels improve HC/CO oxidation while simultaneously reducing NOx formation. The NOx reduction is due to cooler flame temperatures. While the lean burn limit (beyond which combustion is poor) restricts further emission reductions, the use of oxyg ...

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