Global health issues have awakened Engineers to looking into the causes of most health challenges and looking for ways to improve health status of humans. Research has shown that poor water contributes to most human health challenges. Water contributes perhaps most importantly to everything called existence. Virtually everything requires water. All living things depends on water to survive, which varies from one organism to another based on sizes, and many other factors, hence, need to provide water adequately both in quantity and in quality. Water quality requirement varies with use; hence need to assess its quality in relation to its use.
The research aims to look into the physio-chemical and bacteriological analysis of boreholes in Lekki, Lagos state and to provide sustainable solutions. The research focused on the borehole water quality of Lekki environs; how adequate the alternative water used by the residents is and seeks to provide a solution to the inadequacy of getting potable water.
Water samples collected from four different boreholes were subjected to physicochemical analysis using titrimetric and spectrophotometeric method to evaluate the quality. The results showed that the raw water samples are poor both for physical, chemical and bacteriological parameters tested; showing negative results compared to WHO and NSDWQ standards for drinking water. The water treated using the conventional means (i.e. treatment with lime, alum and chlorine) showed improvement on water samples but not adequate enough for consumption as recommended by WHO and NSDWQ. The treatment method was improved as suggested by various literatures and the raw water was subjected to better treatment method using hypochlorite, soda ash, alum and three filter tanks containing sands, activated carbon and resins respectively. The laboratory results revealed positive result and the water sample tested okay for consumption according to the standards used.
Generally, Lekki water is not recommended for consumption as it contains great number of mesophilic and coliforms, poor appearance, total hardness and iron until it is subjected to standard water treatment as the raw water poses numerous health hazards to residents. The improved treatment method is therefore advised to be used for residential buildings and small institutions of not more than 30 individuals considering 340lpcd.
Key words: Borehole, Lekki, Alum, Hydrated Lime, Chlorine, Hypochlorite, Test well, Soda Ash, Filter tank, Raw water, Improved.
Daniel, A (2019). Assessment of Physicochemical and Bacteriological Parameters of Borehole Water of Lekki. Afribary.com: Retrieved June 03, 2020, from https://afribary.com/works/assessment-of-physicochemical-and-bacteriological-parameters-of-borehole-water-of-lekki
Akerele, Daniel. "Assessment of Physicochemical and Bacteriological Parameters of Borehole Water of Lekki" Afribary.com. Afribary.com, 09 May. 2019, https://afribary.com/works/assessment-of-physicochemical-and-bacteriological-parameters-of-borehole-water-of-lekki . Accessed 03 Jun. 2020.
Akerele, Daniel. "Assessment of Physicochemical and Bacteriological Parameters of Borehole Water of Lekki". Afribary.com, Afribary.com, 09 May. 2019. Web. 03 Jun. 2020. < https://afribary.com/works/assessment-of-physicochemical-and-bacteriological-parameters-of-borehole-water-of-lekki >.
Akerele, Daniel. "Assessment of Physicochemical and Bacteriological Parameters of Borehole Water of Lekki" Afribary.com (2019). Accessed June 03, 2020. https://afribary.com/works/assessment-of-physicochemical-and-bacteriological-parameters-of-borehole-water-of-lekki