Influence of Environmental Factors on the Physico-Chemical and Bacteriological Quality of Well and Borehole Water in Rural Communities of Udenu Lga of Enugu State, Nigeria

2018 ◽  
Vol 17 (11) ◽  
pp. 596-608
Author(s):  
Obeta Michael Ch ◽  
Mamah Kingsley I
Author(s):  
Henry Jacques Matita Bomoi ◽  
Gédéon Ngiala Bongo ◽  
Pius Tshimankinda Mpiana ◽  
Kola Nsimba ◽  
Nzau Matiaba ◽  
...  

Water pollution is currently at the top of the environmental agenda. In this study, the main objectives were (i) to assess the physicochemical and bacteriological quality of well and borehole water found in the vicinity of the University of Kinshasa and (ii) to assess the sensitivity of Escherichia coli and Enterococci strains isolated from various selected water points to disinfectants used at the industrial scale (Chlorine and chlorine dioxide) or in the household (Aquatabs) for the microbiological treatment of water. Three sites having wells or boreholes were chosen for sample collection, namely: The University of Kinshasa and its vicinity (Kindele and Kemi districts). The Physico-chemical parameters were determined in situ and then in the laboratory; and concerned the following indicators: pH, conductivity and turbidity. Moreover, the bacteriological quality was assessed by detecting the presence of faecal pollution indicator bacteria (E. coli and Enterococcus sp). The susceptibility of E. coli and Enterococcus sp strains to antimicrobials generally used for the microbiological treatment of drinking water was assessed by the dilution method on agar medium. The physico-chemical analyses showed that: (i) acid pH values in the different water points under study ranging from 6.3-6.5, (ii) conductivity and turbidity values range between 28.5 and 146 NTU. The bacteriological analyses showed that the Kemi district was the only water point which exhibited contamination with fecal pollution indicator bacteria. The strains of Enterococci and E. coli isolated from that well were highly sensitive to chlorine dioxide and Aquatabs and less sensitive to chlorine while the strains of E. coli are highly sensitive to chlorine dioxide and Aquatabs compared to the strains of Enterococci. In conclusion, we can recommend to these populations, the use of these compounds for water treatment precisely Aquatabs for household.


2020 ◽  
Vol 8 (4) ◽  
pp. 1279-1291

The Potability of groundwater in selected location sites in the villages of Veeraghattam (VGT) Mandal of Srikakulam district, Andhra Pradesh has been investigated and obtained Water Quality Index (WQI) results are presented in this paper. Several Physico-chemical parameters like pH, Electrical Conductivity (EC), turbidity, Total Dissolved Solids (TDS), Total Hardness, calcium, magnesium, fluoride, chloride, dissolved oxygen, total alkalinity, and nitrite were experimentally determined from the samples and also to compute WQI. The results of WQI computation infer that the quality of groundwater in selected site locations in rural communities in Veeraghattam Mandal is rated as “good” for human consumption. Correlation between various parameters has also been computed, and the results are presented.


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