M. W. LeChevallier – författare
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4 produkter
Profiling Water Quality Parameters
Häftad, 2004
1675 kr
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The primary objective of the project was to characterize raw water, treatment plant, distribution, and household tap water quality with respect to microbes, water quality indictors, and physicochemical parameters in Davenport, Iowa. The goal was to provide a context for interpreting the public …
Verification and Control of Pressure Transients and Intrusion in Distribution Systems
Av Melinda J. Friedman, L. Radder m. fl.
Häftad, 2005
1675 kr
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Sudden valve closures can create rapid changes in water velocity that result in transient pressure conditions. Pressure transients can travel throughout a distribution system and cause low or negative pressures. Contamination may occur if a leak or air-vacuum valve is submerged and a low pressure …
Water Quality Management
How to Structure It Within a Utility
Av Edward G. Means, M. W. LeChevallier
Häftad, 2005
1675 kr
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Water quality management has many dimensions including operations support, laboratory management, project planning, data management, research, technological applications, staff development, customer satisfaction, budget management, technological advancements and regulatory compliance. Water …
Improved Detection Methods for E. coli 0157
H7
Av Z. Bukhari, J. Weihe m. fl.
Häftad, 2006
1225 kr
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The presence of coliform bacteria in water is widely accepted as an indication of contamination that is potentially of fecal origin. The E. coli strain O157:H7 is particularly virulent and is characterized by its low infectious dose and severity of illness. For example, E. coli O157:H7 was …