Chemical and microbiological assessment of house-filtered water produced by household water filtration systems
| Autor: | A. S. Ammar, M. G. El-Ziney, A. I. Al-Turki |
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| Jazyk: | ruština |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Пищевые системы, Vol 7, Iss 1, Pp 137-143 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2618-9771 2618-7272 |
| DOI: | 10.21323/2618-9771-2024-7-1-137-143 |
| Popis: | Chemical characteristics and microbiological quality of filtered water generated from municipal water using mono-, di- and penta-stage (5-stage) filters, as well as disposed drain water were investigated. With the application of the household water penta filters, the total dissolved solids (TDS) of the filtered water were highly reduced (0.04–0.07 g/L) and, consequently, electrical conductivity also decreased. Furthermore, total hardness was completely removed (0–2 mg CaCO3/L), as well as the chloride content. In the same manner, the nitrate content in the filtered water resulted from the household water penta filters decreased significantly (0.5–0.9 mg/L). Cations, such as Na+ and K+, in the filtered water were greatly affected and were 18–28 and 2 mg/L, respectively. Filtered water generated from the house-water penta filters was not in compliance with the daily amounts of F, Na and K necessary for teenagers and kids, and it might cause a risk of deficiencies. From the microbiological point of view, the penta-stage filter effectively removed total bacterial counts and total coliforms from water making it completely safe for potable and other domestic uses. The home water mono- and di- filters had low effectiveness of contaminant removal. |
| Databáze: | Directory of Open Access Journals |
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