Monitoring of Free Living Amoeba in Some Drinking Water Treatment Plant in Great Cairo Governorate, Egypt | ||||
| The Egyptian Journal of Hospital Medicine | ||||
| Article 9, Volume 71, Issue 7, April 2018, Page 3518-3528 PDF (616.84 K) | ||||
| Document Type: Original Article | ||||
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| Author | ||||
| Lamiaa A. Shawky 1 Faten El-Feky 2, Hanan Taher 2, Wael I. Ashour1. | ||||
| 1 Reference Laboratory for Drinking Water, Holding Company of Water And Waste Water, 2 Faculty of Science, Girls Branch Al-Azhar University, Cairo, Egypt | ||||
| Abstract | ||||
| Background: Free-living amoebae (FLAs) in drinking water exerts an indirect public health hazards as they may harbor pathogenic microorganisms that can escape drinking water treatment processes and reach to end user. The aim of this study was to observe the existence of free-living amoebae through drinking water treatment plants in Great Cairo governorate, Egypt. Water samples were collected from 3 drinking water treatment plants (DWTPs) and filtered through nitrocellulose membranes, then placed on non-nutrient agar with Escherichia coli for cultivation of free-living amoebae. Results:The obtained amoebae were morphologically identified and confirmed to genus level. The results revealed that the occurrence of free-living amoebae in intakes and finished water of the examined DWTPs reached 95% and 31%, respectively. The removal percentage of free-living amoebae through different treatment processes reached its highest rate in Rod Elfarag DWTP (100%), followed by Embaba DWTP (63.64%), and reached to (41.67%)in Shubra El-Kheima DWTPs. Almost all the morphologically identified (FLA) strains proved to be related to genus Acanthamoeba, Naegleria. Conclusion: the presence of free-living amoebae in drinking water exerts an indirect public health hazards as they may harbor pathogenic microorganisms that can escape drinking water treatment processes and reach to end user. | ||||
| Keywords | ||||
| Free Living Amoeba; Drinking water treatment plants; Greater Cairo | ||||
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