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Description: Book cover
KINETICS OF NITRATE FORMATION IN BREAKPOINT CHLORINATION
Abstract
The kinetics of nitrate formation during chlorination of aqueous ammonia-nitrogen above breakpoint levels was studied in batch mode at 25°C and pH ranging between 6.6 and 8.7. The time dependent species profiles indicate that a substantial fraction of ammonia is converted to nitrate while combined chlorine species rapidly form and decay. For all experimental conditions, nitrate concentration approached an asymptote as combined chlorine species fully decayed and free chlorine concentration leveled off. The rate of nitrate formation was found to increase with increasing MDR (chlorine to ammonia-nitrogen molar dose ratio) and initial ammonia concentration, but decreased as solution pH became more basic.
The kinetics of nitrate formation during chlorination of aqueous ammonia-nitrogen above breakpoint levels was studied in batch mode at 25°C and pH ranging between 6.6 and 8.7. The time dependent species profiles indicate that a substantial fraction of ammonia is converted to nitrate while combined chlorine species rapidly form and decay. For all experimental conditions, nitrate concentration...
Author(s)
Neal PhillipVasil Diyamandoglu
SourceProceedings of the Water Environment Federation
SubjectSESSION 4: PART I CHLORINE BASED DISINFECTION KINETICS
Document typeConference Paper
PublisherWater Environment Federation
Print publication date Jan, 2000
ISSN1938-6478
SICI1938-6478(20000101)2000:2L.145;1-
DOI10.2175/193864700785372442
Volume / Issue2000 / 2
Content sourceDisinfection and Reuse Symposium
First / last page(s)145 - 152
Copyright2000
Word count109

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