ASSESSMENT OF WATER QUALITY IN CHLORINATED DRINKING WATER DISTRIBUTION NETWORKS REGARDING TO TRIHALOMETHANES FORMATION | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 1, Volume 50, Issue 3, May 2022, Page 100-112 PDF (619.28 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2022.124056.1121 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Hanan Hosni Badr1; Ali Abdel Rahman Gad2; Ahmed Mustafa Farghaly   2
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| 1Civil Engineer at Nasr General Contracting Company (Hassan M. Allam) | ||||
| 2Civil Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt. | ||||
| Abstract | ||||
| Chlorine disinfection in conventional water treatment plants in Egypt is a popular and inexpensive technique for disinfecting raw surface water before distribution to consumers. Nevertheless, the chlorination process in the presence of natural organic matter and decreased water quality due to uncontrollable population results in formation of high concentrations of carcinogenic disinfection by-products, from which trihalomethanes (THMs). In this paper, the water quality of Assiut drinking water network (ADWN) was assessed in terms of THMs studying different water quality parameters. An extended period simulation based on a modelling software WaterGEMS was employed to obtain the critical locations to be examined according to key parameters namely: water age, residual chlorine concentration, water velocity, and type of storage. The study concluded that THMs concentrations from all critical locations in Assiut drinking water network would not exceed the Egyptian regulatory threshold and US Environmental Protection Agency (EPA) guidelines. Even more, an investigated domestic roof tank should be critically operated under a planned scheme of monitoring and maintenance due to its deteriorated water quality. | ||||
| Keywords | ||||
| Water quality; Water treatment; Disinfection; Trihalomethanes; WaterGEMS | ||||
| References | ||||
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[1] R. A. Li, J. A. McDonald, A. Sathasivan, and S. J. Khan, “A multivariate Bayesian network analysis of water quality factors influencing trihalomethanes formation in drinking water distribution systems,” Water Res., p. 116712, 2020, doi: 10.1016/j.watres.2020.116712.
[2] O. Kaarela, M. Koppanen, T. Kesti, R. Kettunen, M. Palmroth, and J. Rintala, “Natural organic matter removal in a full-scale drinking water treatment plant using ClO2 oxidation: Performance of two virgin granular activated carbons,” J. Water Process Eng., vol. 41, p. 102001, 2021, doi: 10.1016/j.jwpe.2021.102001.
[3] D. Zhang, F. Wang, Y. Duan, S. Chen, A. Zhang, and W. Chu, “Removal of trihalomethanes and haloacetamides from drinking water during tea brewing: Removal mechanism and kinetic analysis,” Water Res., vol. 184, p. 116148, 2020, doi: 10.1016/j.watres.2020.116148.
[4] H. Liu, X. Zhang, Y. Fang, C. Fu, and Z. Chen, “Trade-off control of organic matter and disinfection by-products in the drinking water treatment chain: Role of pre-ozonation,” Sci. Total Environ., vol. 770, p. 144767, 2021, doi: 10.1016/j.scitotenv.2020.144767.
[5] F. Mohd Zainudin, H. Abu Hasan, and S. R. Sheikh Abdullah, “An overview of the technology used to remove trihalomethane (THM), trihalomethane precursors, and trihalomethane formation potential (THMFP) from water and wastewater,” J. Ind. Eng. Chem., vol. 57, pp. 1–14, 2018, doi: 10.1016/j.jiec.2017.08.022.
[6] G. Cool, I. Delpla, P. Gagnon, A. Lebel, R. Sadiq, and M. J. Rodriguez, “Climate change and drinking water quality: Predicting high trihalomethane occurrence in water utilities supplied by surface water,” Environ. Model. Softw., vol. 120, no. July, p. 104479, 2019, doi: 10.1016/j.envsoft.2019.07.004.
[7] C. Sarangapani, P. Lu, P. Behan, P. Bourke, and P. J. Cullen, “Humic acid and trihalomethane breakdown with potential by-product formations for atmospheric air plasma water treatment,” J. Ind. Eng. Chem., vol. 59, pp. 350–361, 2018, doi: 10.1016/j.jiec.2017.10.042.
[8] A. M. Farghaly, A. M. Ahmed, A. A. Gad, and M. A. Hashem, “A study for producing drinking water with safe trihalomethane concentrations,” Clean Technol. Environ. Policy, Sep. 2013, doi: 10.1007/s10098-013-0672-9.
[9] L. Font-Ribera, J. C. Cotta, A. Gómez-Gutiérrez, and C. M. Villanueva, “Trihalomethane concentrations in tap water as determinant of bottled water use in the city of Barcelona,” J. Environ. Sci., vol. 58, pp. 77–82, 2017, doi: 10.1016/j.jes.2017.04.025.
[10] A. A. Gad, “Improvement of water quality in distribution networks using extended period simulation,” Proc. 1st Ain Shams Univ. Int. Conf. Env. Eng., ASCEE-1, vol. 1, pp. 434–446, 2005.
[11] A. Khaled, A. Mohamed, A. A., Gad, M. El-Dardeer, “Drinking water quality simulation in Almonsha distribution network,” JES. J. Eng. Sci., vol. 38, no. 1, pp. 45–70, 2010.
[12] M. Fooladvand, B. Ramavandi, K. Zandi, and M. Ardestani, “Investigation of trihalomethanes formation potential in Karoon River water, Iran,” Environ. Monit. Assess., vol. 178, no. 1–4, pp. 63–71, 2011, doi: 10.1007/s10661-010-1672-4.
[13] C. O’Driscoll et al., “National scale assessment of total trihalomethanes in Irish drinking water,” J. Environ. Manage., vol. 212, pp. 131–141, 2018, doi: 10.1016/j.jenvman.2018.01.070.
[14] A. Sathasivan, G. Kastl, S. Korotta-Gamage, and V. Gunasekera, “Trihalomethane species model for drinking water supply systems,” Water Res., vol. 184, p. 116189, 2020, doi: 10.1016/j.watres.2020.116189.
[15] H. Wang, Y. Zhu, and C. Hu, “Impacts of bacteria and corrosion on removal of natural organic matter and disinfection byproducts in different drinking water distribution systems,” Int. Biodeterior. Biodegradation, vol. 117, pp. 52–59, 2017, doi: https://doi.org/10.1016/j.ibiod.2016.11.023.
[16] E. Tsagkari and W. T. Sloan, “Impact of Methylobacterium in the drinking water microbiome on removal of trihalomethanes,” Int. Biodeterior. Biodegrad., vol. 141, no. August 2018, pp. 10–16, 2019, doi: 10.1016/j.ibiod.2018.07.015.
[17] A. Amarasooriya, S. K. Weragoda, M. Makehelwala, and R. Weerasooriya, “Occurrence of trihalomethane in relation to treatment technologies and water quality under tropical conditions,” H2Open J., vol. 1, no. 1, pp. 69–83, 2018, doi: 10.2166/h2oj.2018.007.
[18] D. Gang, T. E. Clevenger, and S. K. Banerji, “Relationship of chlorine decay and THMs formation to NOM size,” J. Hazard. Mater., vol. 96, no. 1, pp. 1–12, 2003, doi: https://doi.org/10.1016/S0304-3894(02)00164-4.
[19] A. Filazzola et al., “A database of chlorophyll and water chemistry in freshwater lakes,” Sci. Data, vol. 7, no. 1, pp. 1–10, 2020, doi: 10.1038/s41597-020-00648-2.
[20] N. N. Zin, S. Kazama, and S. Takizawa, “Network model analysis of residual chlorine to reduce disinfection byproducts in water supply systems in yangon city, myanmar,” Water (Switzerland), vol. 13, no. 20, 2021, doi: 10.3390/w13202921.
[21] P. W. Mash, “Dissolved organic nitrogen in drinking water supplies: A review,” J. Water Supply Res. Technol. - AQUA, vol. 51, no. 8, pp. 415–448, 2002. | ||||
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