scholarly journals Assessing the Bacteriological Quality of Drinking Water from Sources to Household Water Samples of the Rural Communities of Dire Dawa Administrative Council, Eastern Ethiopia

2013 ◽  
Vol 2 (3) ◽  
pp. 126 ◽  
Author(s):  
D Amenu ◽  
S Menkir ◽  
T Gobena
Keyword(s):  
Drinking Water ◽  
Rural Communities ◽  
Water Samples ◽  
Eastern Ethiopia ◽  
Bacteriological Quality ◽  
Household Water ◽  
Dire Dawa

scholarly journals Ascertaining the Bacteriological Quality of Water Drawn from Cast and Non-cast Wells in Zaria, Nigeria

2020 ◽  
pp. 34-43
Author(s):  
Danjuma, Florence Yachim ◽  
Onaji, Ajegba Innocent ◽  
Ocheme Julius Okojokwu ◽  
Danladi Yakubu Papi
Keyword(s):  
Public Health ◽  
Drinking Water ◽  
Water Samples ◽  
Dry Season ◽  
Safe Drinking Water ◽  
Internal Wall ◽  
Bacterial Counts ◽  
E Coli ◽  
Bacteriological Quality

Lack of access to safe drinking water is a threat to public health and wellbeing of the people as it exposes them to risk of waterborne diseases. This study assessed the bacteriological quality of well water samples obtained from Zaria communities and compared the level of contamination between wells with internal wall casting (cast wells) and wells without internal wall casting (non-cast wells). Water samples from 142 wells were collected for a period of six months encompassing both rainy and dry seasons (July to September for rainy season and November to January for dry season). The water samples were collected and analysed for faecal contamination using membrane filtration technique. The water samples contained high density of bacterial counts ranging from 1.73x103±2.73x102 – 2.02x102±1.85x102cfu/100ml during the raining season and 4.17x102±3.07x101 – 1.39x103±3.27x102cfu/100ml during the dry season. Coliforms and E. coli were present in all the samples with  total coliform counts ranging from 1.06 x 103 – 2.12 x 104 cfu/100 ml and E. coli counts ranging from 5.10 X 102 – 5.0 X 104 cfu/100 ml Counts were higher during the raining season in all the locations compared to the dry season. Faecal coliform counts were higher in wells without casting (91.9%) compare to wells with casting (91.2%) while E. coli counts were higher in wells with casting (77.9%) compared to wells without casting (66.2%). There was no significant difference in the bacterial counts between cast and non-cast wells (p-values were all greater than 0.05).A total of 168 organisms were isolated from this study and they include; E. coli(48.3%), Klebsiella pnuemonaie(11.8%), Klebsiella ozanae(13.2%), Enterobacter agglomerans(11.8%), Enterobacter gergoviae(14.7%), Enterobacter aerogenes (8.8%), Citrobacter freundii(8.8%), Proteus mirabilis (5.9%), Serratia liquefaciens(10.3%) and Acinetobacter lwoffii (2.9%). E. coliwas isolated more frequently (48.3%) compared to other species and was more frequent in non-cast wells (50.0%) compared to cast wells (47.1%). Other species were more frequent in cast wells. The bacteria isolated from this study are mostly of enteric origin; these organisms acquire public health significance under certain conditions, therefore, their removal in drinking water should be given moderate priority. The wells in this study fail to meet the minimum standard for safe drinking water and are therefore not safe for domestic purposes especially for drinking purpose without adequate treatment.

scholarly journals Impact of Seasonal Variation on Bacteriological Quality of Drinking Water

1970 ◽  
Vol 25 (1) ◽  
pp. 69-72 ◽  
Author(s):  
Abdul Hussain Shar ◽  
Yasmeen Faiz Kazi ◽  
Irshad Hussain Soomro
Keyword(s):  
Drinking Water ◽  
Seasonal Variation ◽  
Water Sample ◽  
Water Samples ◽  
Diarrhoeal Disease ◽  
Total Coliform ◽  
Bacteriological Quality ◽  
Potential Source ◽  
Drinking Water Samples

To assess the bacteriological quality 768 drinking water samples were collected from different locations in Khairpur City, Sindh, Pakistan over a period of two years from January 2006 to December 2007. The study reveals that out of 768 drinking water samples 567 (73.83%) samples were found to be contaminated with total coliform among them 85 (11.06%) found in the January-March period, 182 (23.70%) in April-June period, 188 (24.47%) in July-September, 112 (14.58%) in October-December period. Faecal coliform was found in 351 (45.70%) water sample, in which 49 (15.80%) occurred during January-March, 137 (17.83%) during April-June, 136 (17.71%) during July-September and 69 (8.98%) during September-December. It can be concluded from the results of the present study that bacteriological quality of two-third drinking water in Khairpur City is not safe as the water is the potential source of diarrhoeal disease agents. Keywords: Drinking water; Khairpur City; Faecal pollution; DiarrhoeaDOI: http://dx.doi.org/10.3329/bjm.v25i1.4862 Bangladesh J Microbiol, Volume 25, Number 1, June 2008, pp 69-72

scholarly journals Analysis of physico-chemical and bacteriological quality of drinking water in Mafikeng, South Africa

2015 ◽  
Vol 13 (4) ◽  
pp. 1143-1152 ◽  
Author(s):  
Suma George Mulamattathil ◽  
Carlos Bezuidenhout ◽  
Moses Mbewe
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Distribution Systems ◽  
Heterotrophic Bacteria ◽  
Significant Finding ◽  
Pseudomonas Spp ◽  
Bacteriological Quality ◽  
Physico Chemical

Mafikeng, the capital of the North West Province, receives water from two sources, namely the Molopo eye and the Modimola dam. Once treated, the potable water is mixed and supplied to the city via distribution systems. This study was designed to assess the quality of drinking water in Mafikeng and also to determine whether the water from the two sources has an impact on the mixed water quality. Physico-chemical parameters and bacteriological quality (faecal coliforms (FCs), total coliforms (TCs), heterotrophic bacteria and Peudomonas spp.) was monitored at three drinking water sites weekly for 4 months. The results revealed that the physico-chemical quality of the water was generally acceptable. The pH ranged from 5.7 ± 0.18 to 8.6 ± 0.14, the temperature ranged from 18.3 ± 0.69 to 25.1 ± 0.69 °C and the total dissolved solids (TDS) ranged from 159.9 ± 22.44 to 364.4 ± 12.44 mg/l. These values are within the target water quality range for drinking water as prescribed by WHO, Department of Water Affairs and SANS 241. What is of concern was the microbial quality of the water. FCs, TCs, heterotrophic bacteria and Pseudomonas spp. were present in some of the treated water samples. The most significant finding of this study is that all drinking water samples were positive for Pseudomonas spp. (>100/100 ml).

scholarly journals Bacteriological quality of drinks from vending machines

1986 ◽  
Vol 97 (3) ◽  
pp. 497-500 ◽  
Author(s):  
P. R. Hunter ◽  
S. H. Burge
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Code Of Practice ◽  
Bacteriological Quality ◽  
Vending Machines ◽  
Drinking Water Samples

SUMMARYA survey on the bacteriological quality of both drinking water and flavoured drinks from coin-operated vending machines is reported. Forty-four per cent of 25 drinking water samples examined contained coliforms and 84% had viable counts of greater than 1000 organisms ml at 30 °C. Thirty-one flavoured drinks were examined; 6% contained coliforms and 39% had total counts greater than 1000 organisms ml. It is suggested that the D.H.S.S. code of practice on coin-operated vending machines is not being followed. It is also suggested that drinking water alone should not be dispensed from such machines.

scholarly journals DEVELOPMENT OF A PORTABLE HOUSEHOLD WATER DEVICE FOR IMPROVING DRINKING WATER QUALITY IN NIGERIA

2020 ◽  
Vol 5 (2) ◽  
pp. 60-66
Author(s):  
J.G. Akinbomi ◽  
I.I. Odika
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Tap Water ◽  
Drinking Water Quality ◽  
State University ◽  
Water Filter ◽  
Household Water ◽  
Α Level

Pipe borne water supplied to Nigerian households may not always meet the accepted drinking water quality standards due to possible water pipe damage. The objective of this study was, therefore, to develop a portable water filter device for improving household drinking water quality. Five litres of representative tap water samples collected from Lagos State University Staff quarters were passed through the developed device. The experimental variables investigated for data acquisition were aeration period of untreated tap water; device backwashing operation cycles and retention times of tap water in the filter device. The results of the analyses of water samples for the various values of the experimental variables showed that the range values of water parameters between the treated and untreated tap water samples were 0.04-0.05, 0.02-0.03, 0.04-0.12, 0.3-0.4, 125-137, 10-20, 3-10 mg/L for barium, chromium, iron, pH, Total Dissolved Solids, hardness and chloride, respectively. Although the developed device helped in improving the quality of the tap water; the p-values for the different experimental variables were greater than α-level of 0.05 indicating the non-significance of using the developed water device. Consequently, future study will consider other experimental variables that will justify the significance of using the developed device.

scholarly journals Open Defaecation and Its Effects on the Bacteriological Quality of Drinking Water Sources in Isiolo County, Kenya

2017 ◽  
Vol 11 ◽  
pp. 117863021773553 ◽  
Author(s):  
Joab Odhiambo Okullo ◽  
Wilkister Nyaora Moturi ◽  
George Morara Ogendi
Keyword(s):  
Drinking Water ◽  
Water Sources ◽  
Drinking Water Sources ◽  
Bacteriological Quality ◽  
Isiolo County
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