Award Data

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 ...

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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Phase I research proved the feasibility of EnerTech's Slurry Carbonization technology for economically producing clean and marketable fuels from high-moisture agricultural residues and wastes, especially animal manures. The Slury Carbonization technology effectively transformed low-grade animal residues, through a moderate temperature and pressure carbonization process, into a uniform and especial ...

Studies have found Cryptosporidium parvum (C. parvum) oocysts in 65-97% of surface water tested inthe United States. The current Surface Water Treatment Rule does not include analysis for C. parvum.However, the increased incidence of outbreaks involving Cryptosporidiosis have instigated aninvestigation into whether or not testing should be included in the Enhanced Surface Water TreatmentRule. Th ...

Alaskan Commercial agriculture presents many challenges including extreme weatherconditions, isolation from cost-effective distribution, and availability of plants suitable forcommercial application. Clearing requirements for agricultural tracts resulted in a loss of topsoil.Using commercial chemical fertilizers further depletes soils resulting in greater increasing soiladditive requirements. Th ...

The U.S. demand for chlorinated hydrocarbons exceeds 15 million tons annually. The production of these chemicals requires chlorine (Cl2) and produces HCl as an unavoidable by-product. Stringent environmental regulations limit the shipment of hazardous wastes like HCl, and the disposal of HCl by neutralization is costly. A consortium of 15 companies is developing an in-process recycling system t ...

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THE MAJOR OBJECTIVE OF THE RESEARCH PROPOSED IS EVALUATION OF THE TECHNICAL FEASIBILITY OF THE NEW DESIGN FEATURES OF THE FILTER AND A COMPARISON OF ITS PERFORMANCE WITH CONVEN- TIONAL FILTERS IN TREATMENT OF WASTEWATERS. THE MAJOR SPECIFIC FEATURE OF THE FILTER IS A STONE-GRANULAR MEDIA BED WHICH IS EXPECTED TO PROVIDE A NON CLOGGING OPERATION, LONGER FILTRATION RUNS AND GREATER DIRT CAPACITY THA ...