Quality Assessment of Underground Water before and afterTreatment: A Case Study of Tobruk City, Libya
DOI:
https://doi.org/10.37375/sjfssu.v1i1.73Keywords:
Tobruk, Wells, Underground water, Treatment Pollutions.Abstract
The present study was carried out to assess the quality of various wells for drinking purposes and with regard to their current state of repair. Ten wells (W1, W2, W3, W4, W5, W6, W7, W8, W9 and W10) were selected in the study area. This study was designed to determine the physico-chemical and bacteriological quality of wells water before and after water treatment in east Libya, specifically in Tobruk. The bacterial load (E. Coli) of the water samples was determined using standard microbiological methods. Physicochemical properties including pH, total dissolved solids (TDS), electrical conductivity, and Na⁺, K⁺, Ca²⁺, Cl⁻, NaCl concentrations and total alkalinity were determined. The values obtained were compared with the World Health Organization (WHO) standards for drinking water. The results showed that E. Coli bacteria were present in some wells prior to treatment, but were E. Coli-free post-treatment. Furthermore, the physico-chemical parameters of the water samples were generally greater the limits recommended by the WHO with particularly high values seen in well W10, prior to treatment. However, only a few of the bacteriological and physicochemical parameters of the water samples remained above the tolerable limits recommended by the WHO (WHO, 2011) post-treatment. This suggests that regular monitoring and purification of boreholes to ensure good water quality is vital to maintaining the required health standards.
References
Adam, F. A. A. (2018). Petrographically and Mineralogical Studies on the Oligocene-Miocene formations of Al Bardia Coastal Area, East Tobruk City, Libya. Unpublished M.Sc. Thesis, Mansoura University, Egypt, 109 pp. .
Al- Azzawi, A. S. N., Ahala Vaiz Al guaharge, mead Adle Al-Taei,. (2010). Physical and chemical study of Iraqi and international mineral water available in local markets. the University of Babylon/Banking Journal of Science and Applied, 18(5).
Betz, J. B., & Noll, C. A. (1950). A total hardness determination by direct colorimetric titration. J. Amer. Water Works Assoc, 42, 49-56.
Diouf, K., Tabatabai, P., Rudolph, J., & Marx, M. (2014). Diarrhoea prevalence in children under five years of age in rural Burundi: an assessment of social and behavioural factors at the household level. Global Health Action, 7(1), 24895. doi:10.3402/gha.v7.24895
Edokpayi, J. N. R., Elizabeth T. Kahler, David M. Hill, Courtney L. Reynolds, Catherine. Nyathi, Emanuel. Smith, James A. Odiyo, John O. Samie, Amidou. Bessong, Pascal. Dillingham, Rebecca. (2018). Challenges to Sustainable Safe Drinking Water: A Case Study of Water Quality and Use across Seasons in Rural Communities in Limpopo Province, South Africa. Water, 10(2), 159.
El Deftar, T. I., B. (1977). Geological Map of Libya, scale 1: 250 000, sheet NH. 35-1. Al Bardia, Explanatory Booklet,. Industrial Research Center, SPLAJ, Tripoli, 93p.
Gaith G. A Jalgaif, Salah Ali M. Idris, Rabie Ali M. Maarouf, Ahmed M. Attia, & El-Naggar, M. M. (2018). International Journal of Environmental Chemistry. 2(1), 1-9.
Gibb, J. P. (1973). Water Quality and Treatment of Domestic Groundwater Supplies. URBANA: URBANA.
Heath, R. C. (1987). Basic Ground-Water Hydrology. U .S . GEOLOGICAL SURVEY. Dallas L . Peck, Director.
Hem, J. (1985). Study and interpretation of the chemical characteristics of natural water. (3rd edn. ed.). University of Virginia, Charlottesville, US University of Virginia, Charlottesville.
Hoko, Z. (2005). An assessment of the water quality of drinking water in rural districts in Zimbabwe. The case of Gokwe South, Nkayi, Lupane, and Mwenezi districts. Physics and Chemistry of the Earth, Parts A/B/C, 30, 859-866. doi:10.1016/j.pce.2005.08.031
Joshua, N. E., John O. Odiyo, Elizabeth, O. P., & Titus A.M. Msagati. (2018). Evaluation of Microbiological and Physicochemical Parameters of Alternative Source of Drinking Water: A Case Study of Nzhelele River, South Africa. Open Microbiol. J., 12, 18-27.
Lawson, O., & Emmanuel, L. (2011). Physico-Chemical Parameters and Heavy Metal Contents of Water from the Mangrove Swamps of Lagos Lagoon, Lagos, Nigeria. Advances in Biological Research, 5, 8-21.
Mansour, S. (2013). Physico-chemical Evaluation of Drinking Water Quality in Alshati District of Libya. IOSR Journal of Environmental Science, Toxicology and Food Technology, 4, 46-51; 10.9790/2402-0414651.
Mohamed, A. K., Liu, D., Mohamed, M. A. A., & Song, K. (2018). Groundwater quality assessment of the quaternary unconsolidated sedimentary basin near the Pi river using fuzzy evaluation technique. Applied Water Science, 8(2), 65. doi:10.1007/s13201-018-0711-0
Mudgal, K. D., Kumar, M., & Sharma, D. K. (2009). Hydrochemical analysis of drinking water quality of Alwar district. Rajastan. Nat. and Sci., 7(2), 30 – 39.
Salem, M., & Alshergawi, M. I. (2013). Physico-chemical Evaluation of Drinking Water Quality in Alshati District of Libya. IOSR Journal of Environmental Science, Toxicology and Food Technology, 4, 46-51.
Sawyer, C., & McCarty, P. (1967). Chemistry for sanitary engineers. McGraw-Hill, New York.
Shibata Y, M. T., Miyage H. (1992). Chemistry and Industrial Chemistry Journal of the Chemical Society of Japan.
Sweedan, A., and Issawi, B. (1977). Geological map of Libya, 1:250,000, Sheet NH 34-4. Bir Hacheim. Explanatory Booklet, Tripoli, LR.C.
Todd, D. (1980). Groundwater hydrology. . Wiley, New York.: Wiley, New York, US.
UNICEF. (2013). Children dying daily because of unsafe water supplies and poor sanitations and hygiene. United Nations Children Fund.
WHO. (2011). World Health (WHO) Organization Fourth ed Guidelines for Drinking Water Quality.
