Chlorine decay and formation of THM in Malaysia's water distribution system

• Autorzy: Rashid Aina Izzati Muhammad , Rohani Rosiah , Jaafar Othman , Muhammad Nur Shazwani

Identyfikatory

DOI

10.37190/epe210402

• Języki publikacji: EN

Abstrakty

EN

Chlorine is a popular disinfectant used in Malaysia in the treatment process of drinking water supply because of its effectiveness. The concentration of chlorine deteriorates upon travelling in the system due to its reaction with organic matter to produce carcinogenic substances known as disinfection by-products (DBP) such as trihalomethanes (THM). This study was conducted to investigate chlorine decay and THM formation in a state's drinking water distribution system in Malaysia specifically across a 24.9 km distance. EPANET 2.0 Software program was used to perform hydraulics and water quality analysis using the extended period simulation (EPS) for 24 hours demand pattern. A simulation of the water distribution system was performed to identify the formation of THM and its relationship between chlorine and total organic carbon (TOC). The value of THM was maintained at a lower level at the water treatment plant (WTP) than at the endpoint of the distribution system. At the endpoint, which was at the targeted industrial area, the level of THM was found to increase and the obtained data showed that its formation occurred along the investigated distribution system. THM formation manifested as the natural organic matter (NOM) presence along the pipe continuously reacted with chlorine which was dosed in the distribution system.

Słowa kluczowe

EN

drinking water; trihalomethane; Malaysia; disinfection

PL

woda pitna; trihalogenometan; Malezja; dezynfekcja

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2021
• Tom: Vol. 47, nr 4
• Strony: 19--41
• Opis fizyczny: Bibliogr. 29 poz., rys., tab.

Twórcy

autor

Rashid Aina Izzati Muhammad

• Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
• Department of Civil Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia

• https://orcid.org/0000-0002-1068-566X

autor

Rohani Rosiah

• Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia
• Research Centre for Sustainable Process Technology, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia

• https://orcid.org/0000-0002-4391-4043

autor

Jaafar Othman

• Department of Civil Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia

• https://orcid.org/0000-0002-0820-6260

autor

Muhammad Nur Shazwani

• Department of Civil Engineering, Faculty of Engineering and Built Environment, University Kebangsaan Malaysia, UKM, Bangi 43600, Selangor, Malaysia

• https://orcid.org/0000-0002-2432-4822

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