The Efficacy of Treated Water from Water Filtration Machines for Safe Drinking Water Supply in Bandar Baru Bangi and Kajang, Selangor

Autor: Nazira Sulaiman, Saiful Irwan Zubairi, Norrakiah Abdullah Sani, Zalifah Mohd Kasim
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Food Quality, Vol 2020 (2020)
Druh dokumentu: article
ISSN: 0146-9428
1745-4557
DOI: 10.1155/2020/3536420
Popis: This study was conducted to determine the physicochemical properties, microbiological quality, level of consumption, and effects of treated water from paid water filtration machines on health of the residents of Bandar Baru Bangi and Kajang, Selangor. The number of water samples taken for this study was 15 from the paid water filtration machines studied. The physicochemical assessment such as determination of pH, turbidity, total dissolved solids, conductivity, and dissolved oxygen was conducted, while the inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the mineral content of the treated water. The microbiological quality was determined using the pour plate method for colony count (22°C incubation for 72 hours and 37°C for 24 hours), while for coliforms and Escherichia coli, the membrane filtration method was utilized. The samples of treated water from the paid water filters were based on triplicate sampling (n = 3). The pH, turbidity, total dissolved solid values, and heavy metal concentration were within the safe level according to the Malaysian National Standard for Drinking Water Quality, Ministry of Health (MOH). The overall range for the pH values of the treated water samples was between 6.50 and 7.15, where this was within the recommended range. The total dissolved solids showed that all the treated water samples were in the range of the recommended standard (27 to 92 mg/L). The range of turbidity values for all the treated water samples was from 1.7 to 6 NTU, and the dissolved oxygen range was from 7.7 to 8.2 mg/L. The colony count results showed that most of the water samples complied with the standards of
Databáze: Directory of Open Access Journals
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