Abstract
Chloramine is used as a secondary disinfectant in water distributions system (WDS). However, nitrification is a major concern involved in the chloraminated WDS as it leads to the accelerated decay of chloramines. After the onset of nitrification, breakpoint chlorination followed by rechlorination is generally practiced in WDS to reinstate chloramine residuals in the WDS. In this study, two different control strategies re-chlorination and breakpoint chlorination followed rechloramination were applied on the severely nitrified water collected from the laboratory-scale reactor system. Results showed that breakpoint chlorination followed by rechloramination is highly stable as the chloramine residual was maintained up to 300 hours and is highly effective than rechlorination alone as it could maintain residue only up to 50 hours even with repeated re-dosing.
| Original language | English |
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| Title of host publication | Proceedings of 2019 International Conference on Environment, Resources and Energy Engineering, 9-11 October 2019, Bangkok, Thailand |
| Publisher | Institute of Physics Publishing |
| Number of pages | 5 |
| Volume | 464 |
| Publication status | Published - 7 Apr 2020 |
| Event | International Conference on Environment_Resources and Energy Engineering - Duration: 9 Oct 2019 → … |
Publication series
| Name | |
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| ISSN (Print) | 1755-1307 |
Conference
| Conference | International Conference on Environment_Resources and Energy Engineering |
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| Period | 9/10/19 → … |
Bibliographical note
Publisher Copyright:© Published under licence by IOP Publishing Ltd.
Open Access - Access Right Statement
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0). Any further distribution of this work must maintain attribution to the author(s) and the title of the work_journal citation and DOI. Published under licence by IOP Publishing Ltd.Keywords
- chlorination
- water