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Bacteriological and physicochemical quality of drinking water in Kobo town, Northern Ethiopia
Journal of Water, Sanitation & Hygiene for Development ( IF 1.6 ) Pub Date : 2021-03-01 , DOI: 10.2166/washdev.2021.218
Baye Sitotaw 1 , Molla Nigus 2
Affiliation  

Despite drinking water supply in Kobo town is from a borehole through pipes, a high incidence of waterborne diseases are frequently reported. Hence, this study aimed to assess the bacteriological and physicochemical drinking water quality in Kobo town. One hundred and twenty water samples were collected from four sampling sites (the source, reservoir, taps, and households' containers) from February to April 2020. Total and fecal coliforms were counted from the water samples using membrane filtration while selected physicochemical parameters were determined using standard methods. The mean counts of total and fecal coliforms ranged from 3.9 to 22.9 and 1 to 13.6 CFU/100 mL, respectively. Hence, all water samples did not satisfy the WHO guidelines and national standards. There were statistically significant differences in the coliform counts between the different sampling sites, and the counts were significantly higher in the taps and households' containers compared to the counts in the source and reservoir (p < 0.05). All physicochemical parameters, except for temperature, were within the recommended acceptable limits. High coliform count in the water system demands proper maintenance of the distribution line and good hygiene practices at household level to improve the microbiological quality of drinking water in Kobo town.



中文翻译:

埃塞俄比亚北部科博镇饮用水的细菌学和理化质量

尽管Kobo镇的饮用水是通过管道通过井眼供应的,但经常报道水传播疾病的发病率很高。因此,本研究旨在评估Kobo镇的细菌学和理化饮用水水质。2020年2月至2020年4月,从四个采样点(水源,水库,水龙头和家庭用的容器)收集了120个水样。使用膜滤对水样中的大肠菌群和粪大肠菌群进行计数,同时确定选定的理化参数。使用标准方法。总和粪便大肠菌群的平均计数分别为3.9至22.9和1至13.6 CFU / 100 mL。因此,所有水样均不符合WHO指南和国家标准。p<0.05)。除温度外,所有理化参数均在建议的可接受范围内。供水系统中大肠菌群数量高,需要对分配管线进行适当维护,并在家庭一级保持良好的卫生习惯,以提高Kobo镇饮用水的微生物质量。

更新日期:2021-03-23
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