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Ardeshir, A., Behzadian, Kourosh 
ORCID: https://orcid.org/0000-0002-1459-8408, Alimohamadnejad, M., Jalilsani, F. and Alizadeghan, H.
(2017)
Optimal chlorination of water distribution systems considering residual chlorine and formed THM.
Sharif Journal of Civil Engineering (SJCE), 33.2 (3.1).
pp. 21-29.
ISSN 2676-4768
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Abstract
Whilst booster chlorination stations are suggested to resolve the drawback of chlorination at water resources, determination of exact amount of injection is still a problem with respect to formation of THM as disinfection by-product (DBP) of chlorination. In this paper, a multi-objective genetic algorithm is used to optimize both the location of chlorination stations and their schedule with respect to residual chlorine and formed THM which is indirectly estimated by a linear relation based on the amount of chlorine consumed. The objectives are to minimize the total amount of consumed disinfectant and to maximize percent of safety drinking water (SDW) assuming a specific number of disinfectant stations. The results show the increase in the number of stations would lead to both a decrease in DBP and maintenance of residual chlorine in standard limits in many parts of the network. Particularly, distant points with a very long resident time often suffer both residual chlorine less than standard limit and DBP with high concentrations. A maximum amount in which no risk of cancer would occur due to DBP is then determined for each specific number of chlorination stations.
| Item Type: | Article |
|---|---|
| Identifier: | 10.24200/J30.2017.20077 |
| Keywords: | Disinfection by-product, optimal chlorination stations, urban water distribution system |
| Subjects: | Construction and engineering > Civil and environmental engineering |
| Related URLs: | |
| Depositing User: | Kourosh Behzadian |
| Date Deposited: | 16 Jan 2023 21:32 |
| Last Modified: | 04 Nov 2024 11:39 |
| URI: | https://repository.uwl.ac.uk/id/eprint/8527 |
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