Abstract
The lack of standard water analysis equipment as well as inadequate trained personnel especially in the developing countries has discouraged many researchers in such countries to execute water quality researches. Hence, this paper presents developed mathematical relationship among some physicochemical parameters in order to aid the determination of the concentrations of certain parameters with the use of minimal equipment. This was achieved by weekly analyzing 7 physicochemical parameters of two sources of potable water (tap water and borehole water) stored in different containers for a period of 6 weeks using standard methods. The storage containers used were black plastic tank, blue plastic tank, green plastic tank, coated steel metal tank, uncoated steel metal tank and clay pot. The parameters examined were turbidity, electrical conductivity (EC), pH, alkalinity, chloride ion (Cl-), dissolved oxygen (DO) and total hardness. Results showed that the relationship between electrical conductivity (EC), alkalinity (Alk), total hardness (TH) and chloride ion (Cl-) is given as; EC = -224.8066493 + 6.244028022(Alk) + 0.28204735(TH) + 0.000518108(Cl-). A programing language was written on the models using Visual Basic.Net (VB.Net) version 2018.
 Keywords: Water, Physicochemical, Parameters, Function, Equation.
Highlights
Due to the presence of impurities in the global water resources, only a very few proportion of the world’s available water is potable or fit for human consumption (Andrew, 2014; Nala and Jagals, 2013; and Ochekpe, 2011)
Tap water obtained from the water treatment plant of the Ahmadu Bello University water works, Zaria (11° 8'17.43"N, 7°39'29.43"E) were filled into disinfected tap-fitted tanks made from coated steel metal, uncoated steel metal, black plastic, green plastic, blue plastic and clay pot having volume of 25L each
The laboratory results of the 7 physicochemical parameters monitored during the six (6) weeks retention period for both sources of water are shown in table 1
Summary
Due to the presence of impurities in the global water resources, only a very few proportion of the world’s available water is potable or fit for human consumption (Andrew, 2014; Nala and Jagals, 2013; and Ochekpe, 2011). It is necessary to develop a means of reducing the time usually spent in analyzing water quality as well as the cost incurred. This could be achieved by building an equation (mathematical model) out of previous studies that will act as a representation of reality without interfering directly with the quality of the result. A mathematical model will reduce the risk, cost and the time spent in analyzing the quality of water samples. This paper presents the results of the investigation carried out to check the possibility of using MLR model in understanding the relationship between the quality parameters of potable water
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