scholarly journals Evaluation of Effectiveness between Two Different Facilities for Drinking Water Having Different Water Sources for Removal of Free-Living Amoeba in Qalyubia Governorate, Egypt

2021 ◽  
Vol 85 (2) ◽  
pp. 4231-4239
Author(s):  
Lamiaa A. Shawkey ◽  
Faten A. Elfeky ◽  
Basma M. Abou-Elnour ◽  
Eman S . El-Wakil
Keyword(s):  
Drinking Water ◽  
Water Sources ◽  
Free Living ◽  
Free Living Amoeba ◽  
Different Water Sources

Incidence of free living amoeba in different water sources in el-minia governorate (middle egypt)

1998 ◽  
Vol 47 ◽  
pp. 159
Author(s):  
Khalifa M.A. Refaat ◽  
Gabr S. Nabil ◽  
Abedel-lateef Z.M. Manal
Keyword(s):  
Water Sources ◽  
Free Living ◽  
Free Living Amoeba ◽  
Different Water Sources

scholarly journals Xenic Cultivation and Genotyping of Pathogenic Free-Living Amoeba from Public Water Supply Sources in Uganda

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Celsus Sente ◽  
Joseph Erume ◽  
Irene Naigaga ◽  
Benigna Gabriela Namara ◽  
Julius Mulindwa ◽  
...  
Keyword(s):  
Water Treatment ◽  
Water Supply ◽  
Protected Area ◽  
Water Sources ◽  
Public Water Supply ◽  
Contaminated Water ◽  
Domestic Water ◽  
Free Living ◽  
Water Contaminants ◽  
Free Living Amoeba

Studies on waterborne parasites from natural environment and domestic water sources in Uganda are very scarce and unpublished. Water dwelling free-living amoebae (FLA) of the genus Acanthamoeba, Hartmannella, and Naegleria are often responsible for causing morbidities and mortalities in individuals with recent contact with contaminated water, but their presence in Uganda’s public water supply sources is not known. We cultivated and genotyped FLA from natural and domestic water from Queen Elizabeth Protected Area (QEPA) and Kampala (KLA). The cultivated parasites were observed microscopically and recorded. The overall prevalence of FLA in QEPA (Acanthamoeba spp., 35%; Hartmannella spp., 18.9%; Naegleria spp., 13.5%) and KLA (Acanthamoeba spp., 28.3%; Naegleria spp., 16.6%; Hartmannella spp., 23.1%) were not significantly different. The highest prevalence across water sources in QEPA and KLA was observed for Acanthamoeba spp., followed by Hartmannella spp., and Naegleria spp. Overall FLA mean (±SE) and mean (±SE) across water sources were highest for Acanthamoeba spp. compared to other FLA but were not statistically significant (p > 0.05). Analysis of the FLA sequences produced 1 Cercomonas, 1 Nuclearia, 1 Bodomorpha, 2 Hartmannella, 5 Echinamoeba, and 7 Acanthamoeba partial sequences, indicating a muliplicity of water contaminants that need to be controlled by proper water treatment.

scholarly journals Physico-Chemical and Optical Examination of Water Stored in Copper Vessels

2019 ◽  
Vol 9 (2S2) ◽  
pp. 278-281
Keyword(s):  
Drinking Water ◽  
Low Cost ◽  
Water Sources ◽  
Chemical Mechanism ◽  
Vis Spectroscopy ◽  
Chemical Studies ◽  
Optical Examination ◽  
Research And Education ◽  
Sudden Decrease ◽  
Different Water Sources

Storage of water in copper vessels is traditionally followed in past and many reports have been published about the antibacterial growth in copper vessel. It is essential to determine the water purity for drinking purposes in daily life through low cost approach. In the present work an attempt has been made to investigate the effect of storage of different drinking water in copper vessel for two week. The corresponding values of pH and TDS meter for different waters were recorded and analyzed. The optical properties such as UV-Vis and Raman studies along with physio-chemical parameters like pH and TDS were analyzed for 3weeks against different water sources kept in copper vessel. The Raman spectra provide information for different water sources. Similarly the UV-Vis spectroscopy provide the peak variation for different waters, however the effect of days and copper concentration analysis are in investigation. The Results obtained in this study reveals that water stored in copper vessel reduces the TDS level of bore water Tirunelveli and maintains its pH at 8.0 after 2 weeks. The bore water in Krishnan kovil (virudhunagar district) shows no variation in TDS after 1 week, but in 2nd week there is sudden decrease in TDS from 1050 to 944ppm and pH level decreases to 8.3 showing alkaline nature. Throughout the experiment we have noticed that the colour of copper vessel changes in case of bore water. For variation in studies we have also studied the pH and TDS of Drinking water at Kalasalingam Academy of Research and Education. There is no change in colour of copper vessel and TDS and pH remains same up to one week, but in second week TDS increases to 100ppm while the pH remain constant at 7.4. These studies will help future researcher for designing of copper vessels and will help them to analyze the Physio-chemical studies of water. Moreover the chemical mechanism and reaction between copper vessel and leaching out of copper into water data base will be generated in future based on UV and Raman studies.

scholarly journals PATTERN OF WATER SUPPLY IN RELATION TO DIFFERENT WATER SOURCES IN METROPOLITAN KANO

2020 ◽  
Vol 4 (3) ◽  
pp. 690-696
Author(s):  
Abubakar Hadiza Suleiman
Keyword(s):  
Drinking Water ◽  
Local Government ◽  
Water Supply ◽  
Research Work ◽  
Water Sources ◽  
Water Supply Systems ◽  
Sampling Techniques ◽  
Alternative Sources ◽  
Supply Systems ◽  
Different Water Sources

The study carried out on pattern of water supply in relation to different water sources in metropolitan Kano was aimed to assess the pattern of water supply in the area. Eight local government areas were found in the area but six local government areas were selected in conducting the research work. The selected local government areas included dala, Fagge, Kano Municipal, Gwale, Tarauni, Nassarawa. The research work was conducted through the following methods of data collection, (questionnaire and interview). Krecjie and morgan sampling techniques was adopted in administering the questionnaire, because it was the best sampling techniques that suited the study. The result of the findings indicated that ground water sources are now the major sources of water used in the study area, pipe borne water was generally inadequate. Dala, Kano Municipal, Fagge and Gwale were the areas mostly affected with scarcity of pipe borne water. Other sources of water for household usage included water from vendors and water supply Tankers. Some sources of water were founded inactive (that is sources of water producing less or no water due to some problems). Most people in the area depend on sachet water as their source of drinking water. Finally, in order to overcome some of the problems of water is their source of drinking water. Finally, in order to overcome some of the problems of water supply it was recommended that there should be alternative sources of power, regular maintenance, train of manpower, and effective management of water supply systems.

Risk assessment on disinfection by-products of drinking water of different water sources and disinfection processes

2007 ◽  
Vol 33 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Wuyi Wang ◽  
Bixiong Ye ◽  
Linsheng Yang ◽  
Yonghua Li ◽  
Yonghua Wang
Keyword(s):  
Risk Assessment ◽  
Drinking Water ◽  
Water Sources ◽  
By Products ◽  
Different Water Sources

scholarly journals Co-Occurrence of Free-Living Amoeba and Legionella in Drinking Water Supply Systems

Medicina ◽  
2019 ◽  
Vol 55 (8) ◽  
pp. 492 ◽  
Author(s):  
Valciņa ◽  
Pūle ◽  
Mališevs ◽  
Trofimova ◽  
Makarova ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Supply ◽  
Water Samples ◽  
Cold Water ◽  
Hot Water ◽  
Drinking Water Supply ◽  
Water Supply Systems ◽  
Free Living ◽  
Free Living Amoeba ◽  
Supply Systems

Background and Objectives: Legionella is one of the most important water-related pathogens. Inside the water supply systems and the biofilms, Legionella interact with other bacteria and free-living amoeba (FLA). Several amoebas may serve as hosts for bacteria in aquatic systems. This study aimed to investigate the co-occurrence of Legionella spp. and FLA in drinking water supply systems. Materials and Methods: A total of 268 water samples were collected from apartment buildings, hotels, and public buildings. Detection of Legionella spp. was performed in accordance with ISO 11731:2017 standard. Three different polymerase chain reaction (PCR) protocols were used to identify FLA. Results: Occurrence of Legionella varied from an average of 12.5% in cold water samples with the most frequent occurrence observed in hot water, in areas receiving untreated groundwater, where 54.0% of the samples were Legionella positive. The occurrence of FLA was significantly higher. On average, 77.2% of samples contained at least one genus of FLA and, depending on the type of sample, the occurrence of FLA could reach 95%. In the samples collected during the study, Legionella was always isolated along with FLA, no samples containing Legionella in the absence of FLA were observed. Conclusions: The data obtained in our study can help to focus on the extensive distribution, close interaction, and long-term persistence of Legionella and FLA. Lack of Legionella risk management plans and control procedures may promote further spread of Legionella in water supply systems. In addition, the high incidence of Legionella-related FLA suggests that traditional monitoring methods may not be sufficient for Legionella control.

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