The reactivity of natural organic matter to disinfection by-products formation and its relation to specific ultraviolet absorbance

Five natural waters with a broad range of DOC concentrations were fractionated using various coal- and wood-based granular activated carbons (GAC) and alum coagulation. Adsorption and alum coagulation fractionated NOM solutions by preferentially removing components having high specific ultraviolet a...

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Veröffentlicht in:Water science and technology : a journal of the International Association on Water Pollution Research. - 1986. - 43(2001), 2 vom: 14., Seite 9-16
1. Verfasser: Kitis, M (VerfasserIn)
Weitere Verfasser: Karanfil, T, Kilduff, J E, Wigton, A
Format: Aufsatz
Sprache:English
Veröffentlicht: 2001
Zugriff auf das übergeordnete Werk:Water science and technology : a journal of the International Association on Water Pollution Research
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Chlorine Compounds Coal Disinfectants Organic Chemicals Carbon 7440-44-0
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245 1 4 |a The reactivity of natural organic matter to disinfection by-products formation and its relation to specific ultraviolet absorbance 
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520 |a Five natural waters with a broad range of DOC concentrations were fractionated using various coal- and wood-based granular activated carbons (GAC) and alum coagulation. Adsorption and alum coagulation fractionated NOM solutions by preferentially removing components having high specific ultraviolet absorbance (SUVA). UV absorbing fractions of NOM were found to be the major contributors to DBP formation. SUVA appears to be an accurate predictor of reactivity with chlorine in terms of DBP yield; however, it was also found that low-SUVA components of NOM have higher bromine incorporation. SUVA has promise as a parameter for on-line monitoring and control of DBP formation in practical applications; however, the effects of bromide concentration may also need to be considered. Understanding how reactivity is correlated to SUVA may allow utilities to optimize the degree of treatment required to comply with DBP regulations. The reactive components that require removal, and the degree of treatment necessary to accomplish this removal, may be directly obtained from the relationship between SUVA removal and the degree of treatment (e.g., alum dose) 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 7 |a Chlorine Compounds  |2 NLM 
650 7 |a Coal  |2 NLM 
650 7 |a Disinfectants  |2 NLM 
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700 1 |a Kilduff, J E  |e verfasserin  |4 aut 
700 1 |a Wigton, A  |e verfasserin  |4 aut 
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