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The occurrence of causative agents such as Cryptosporidium parvum and other pathogens in water supplies presents a critical issue. Transmitted through water and animals, these organisms provide a reservoir of infection, which results in the excretion of the environmentally stable cysts or oocysts that are impervious to inactivation by many drinking water disinfectants. Cryptosporidium infections a ...

Cryptosporidium, originating from contamination of public drinking water supplies, ponds, rivers, or swimming pools, have cause large-scale and deadly outbreaks, which became a major cause of waterborne infectious diseases. Since 1991, the percent of outbreaks attributable to Cryptosporidium has doubled, and in the 1993-1994 period, 17 percent of all outbreaks were caused by Cryptosporidium. In 19 ...

It is estimated that there are approximately 300 million tires discarded each year in the United States and this is in addition to the 800 million scrap tires that reside in landfills and tire dumps throughout the country. About 180 million are recycled, and the remaining 120 million scrap tires are discarded (legally or illegally) in landfills or tire dumps. Current tire reuse technologies offer ...

New environmental regulations have identified many of the currently used oxidizing agents employed for industrial waste control, disinfection, and wastewater treatment as a caveat that must be addressed. Ferrate has potential for becoming the alternative of choice because of its aggressive oxidation properties and its negligible impact on the environment. However, there has been little industrial ...

Dynaflow, Inc., proposes the development of a novel jet-induced cavitation process for the removal of various pollutants¿including pesticides from wastewater discharge¿ that would be economical, readily applicable to both large- and small-scale systems, and that does not produce potentially hazardous by-products of chlorination and ozonation. Ultrasonically induced cavitation is known to be capa ...

The goal of this project is to develop a portable system for the real-time detection and quantification of adenovirus in wastewater. The system is based on a small, portable flow cytometer that was developed and is being marketed by Becton Dickinson Biosciences (BDB) under the trade name FACSCount¿ for use in selected medical and research applications. Unlike previous efforts to apply flow cytome ...

Not Available The purpose of the proposed research is to show that significant improvements in the performance of electrically tunable microwave devices can be obtained using a novel type of superlattice structures. The approach is based on recent work at Neocera showi

Not Available NASA SBIR Solicitation 98-1 emphasizes that ¿Advanced extravehicular activity (EVA) systems are necessary for the successful support of future human space missions.¿ Topic 09.05 recognizes that development of advanced EVA systems depends on ¿methods for..

Not Available Mod Works proposes to construct major airframe components using modern aluminum manufacturing process (MAM). The objective will be to reduce the cost of manufacturing while maintaining better surface quality. Major reduction in cost and labor requirement