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Your search keyword '"Korshin, G. V."' showing total 3 results
Start Over Author "Korshin, G. V." Topic monitoring
3 results on '"Korshin, G. V."'

1. A Novel Electrochemical Technique to Monitor Metal Release in Drinking Water Due to Internal Corrosion of Distribution Pipes

Author

FABBRICINO, MASSIMILIANO, KORSHIN G. V., Fabbricino, Massimiliano, and Korshin, G. V.

Subjects
monitoring, corrosion, electrochemical potential, metal release, water quality
Abstract

Results of a pioneering study, concerning the development of a new technique far on-line monitoring of copper concentration in drinking water, are presented and discussed. The technique is based on the use of a surrogate parameter, represented by the electrochemical potential, to measure the amount of copper released in drinking water because of corrosion. The most representative findings, resulting from laboratory and field studies, are described, highlighting the potentiality of the proposed technique. Experimental data are used to verify the relationship between the electrochemical potential and the copper concentration derived from a mathematical model, shortly presented, which describes the corrosion process taking place during water stagnation in contact with a metal surface.

Published
2004

2. Post-Optimization Lead and Copper Control Monitoring Strategies

Author

KIRMEYER G., MURPHY B., SANDVIG A., KORSHIN G. V., SHAHA B., BURLINGAME G., FABBRICINO, MASSIMILIANO, Kirmeyer, G., Murphy, B., Sandvig, A., Korshin, G. V., Shaha, B., Fabbricino, Massimiliano, and Burlingame, G.

Subjects
monitoring, plumbing material, water supply, drinking water, heavy metal, copper release
Published
2004

3. Quantifying the formation of nitrogen-containing disinfection by-products in chlorinated water using absorbance and fluorescence indexes.

Author

Roccaro, P., Vagliasindi, F. G. A., and Korshin, G. V.

Subjects
FLUORESCENCE, GOLD metallurgy, DRINKING water, ORGANIC compounds, CHLORINATION, REACTION time
Abstract

Among known but unregulated disinfection by-products (DBPs), several nitrogenous species (N-DBPs) have been found in drinking waters. While concentrations of N-DBP are much lower than those of trihalomethanes (THMs) and haloacetic acids (HAAs), their potential toxicity is higher. In this study the relationships between the formation of N-DBPs and the changes in NOM caused by the chlorination of raw Ancipa water quantified by the use of differential absorbance and fluorescence indexes were investigated. Very strong relationships were found between selected N-DBPs (i.e. trichloronitromethane and dichloroacetonitrile) and the proposed spectroscopic indexes that were previously developed to quantify the changes in natural organic matter (NOM) during chlorination at varying reaction conditions (chlorine dose, reaction time and temperature) and the generation of DBPs. Obtained results clearly indicate that the changes in NOM absorbance and fluorescence are fundamental descriptors of the formation of both commonly controlled halogenated DBPs and N-DBPs. This approach may be suitable for real time monitoring of emerging N-DBPs and for studying their formation pathways. [ABSTRACT FROM AUTHOR]

Published
2011
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