Modeling and validation of chlorination breakpoint with nitrite in wastewater treatment

Chlorination in wastewater treatment is regarded as a complicated process due to its ammonia and nitrite content. Chlorine added to such systems reacts with ammonia undergoing episodes of complex reactions resulting in the chlorination breakpoint behavior. Most of the available chlorination mechanis...

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Bibliographic Details
Published inWater Quality Research Journal Vol. 53; no. 4; p. 219
Main Authors Khawaga, Rehab I, Al-Asheh, Sameer, Nabil Abdel Jabbar, Abouleish, Mohamed
Format Journal Article
LanguageEnglish
Published London IWA Publishing 01.11.2018
Subjects
Ammonia
Chemistry
Chlorination
Chlorine
Civil engineering
Computer simulation
Disinfection & disinfectants
Dissertations & theses
Drinking water
Environmental science
Kinetics
Nitrites
Reactors
Studies
Wastewater treatment
Wastewater treatment plants
Water quality
Water treatment
Ann Arbor Michigan
United States > US
California
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Summary:Chlorination in wastewater treatment is regarded as a complicated process due to its ammonia and nitrite content. Chlorine added to such systems reacts with ammonia undergoing episodes of complex reactions resulting in the chlorination breakpoint behavior. Most of the available chlorination mechanistic models are not easily applied which has restricted their practical utilization in treatment plants. In this study, a new mechanistic model for the chlorination breakpoint in ammonia-nitrite systems is suggested with a user-friendly interface and to be applicable with conditions occurring in wastewater treatment plants. The model was validated against laboratory studies reported in the literature and was also applied to forecast chlorine residual in a wastewater treatment plant in the region. The model simulated both experimental and field data reasonably well.
DOI:10.2166/wqrj.2018.043