A potential new method for determination of the fluence (UV dose) delivered in UV reactors involving the photodegradation of free chlorine
In the operation of UV reactors, an important step is to validate if the UV reactor can deliver the design fluence (UV dose) to achieve the required disinfection credit. Free chlorine is used widely in water and wastewater treatment and often is found in the water passing through a UV reactor. Free...
| Veröffentlicht in: | Water environment research : a research publication of the Water Environment Federation. - 1998. - 82(2010), 4 vom: 25. Apr., Seite 328-34 |
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| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2010
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| Zugriff auf das übergeordnete Werk: | Water environment research : a research publication of the Water Environment Federation |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Water 059QF0KO0R Chlorine 4R7X1O2820 |
| Zusammenfassung: | In the operation of UV reactors, an important step is to validate if the UV reactor can deliver the design fluence (UV dose) to achieve the required disinfection credit. Free chlorine is used widely in water and wastewater treatment and often is found in the water passing through a UV reactor. Free chlorine is degraded when passing through a UV reactor. This study investigates the potential application of the photodegradation of free chlorine (PFC) to determine the fluence (UV dose) delivered in UV reactors. Using a bench-scale UV reactor, the PFC was investigated at difference UV doses, which also were measured by a biodosimetry method. The results obtained here show that the PFC method has a high correlation with the delivered UV dose (as estimated from the biodosimetry measurements) and is independent of operating conditions, such as flowrate and UV transmittance. In addition, this study indicates that only chloride and chlorate are generated when free chlorine is photodegraded |
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| Beschreibung: | Date Completed 18.05.2010 Date Revised 23.09.2019 published: Print Citation Status MEDLINE |
| ISSN: | 1554-7531 |