A Study of the Drinking Water Physical and Chemical Factors at Al-Qadisiyah Drinking Water Station - Salah Al-Din Province
Keywords:Drinking water, filtration, dissolved oxygen, biochemical oxygen demand. Total hardness.
The current study was conducted on drinking water to identify some of the physical and chemical properties
of the drinking water station in the city of Tikrit - Al-Qadisiyah district, with four distributed sites since
November 2018 to January 2019 for a period of three months by measuring the temperature of air, water,
pH, D.O., BOD, E.C., salinity, hardness, chloride salts, nitrites and phosphates.
The results of the current study showed that the temperature of air and water ranged respectively between
(15.5 - 17.3) and (15 - 18.2) C°, while the value of E.C. ranged (52.60 - 61.05) µS/cm. As for the pH, the
values ranged between (7.31 - 7.39) whereas the D.O. values ranged (2.06 - 2.5) mg/L, while the values of
the B.O.D. ranged from (0.98 - 0.50) mg/L and it was noticed that this water had a low level of hardness,
as the T.H. values ranged between (9.5 - 12.6) mg/L and Ca hardness ranged between (6.66 - 9.66) mg/L,
while the Mg hardness recorded values ranging between (13 - 30) mg/L, while the salinity values ranged
(1.51 - 1.55) g/L, while the Cl values ranged from (0.041 - 0.13). This study recorded low concentrations of
phosphate values, as the values ranged between (0.04 - 0.27) µg/L of atom phosphate, while the values of
nitrite ranged between (0.01 - 0.7) µg/L of nitrogen atom - nitrite.
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