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Tikrit Journal of Engineering Sciences (2017) 24(3) 69- 74

Evaluating the Quality of Raw and Treated Water for a Number of Water Treatment Plants in Baghdad, using Canadian Model for Water Quality  Index

Masood Muhsin Hazzaa
Environmental Eng. Dept., Tikrit University, Iraq

Abstract

Laboratory tests for some physical and chemical properties were conducted to evaluate the quality of potable water on some water treatment plants in Baghdad (Al-Qadisiya, Al-Dora, Al-Wahda and Al Rasheed). Study samples were taken from raw and treated water. Water tests were monthly conducted for eight years in order to evaluate the potable water quality and the efficiency of these plants. The quality of the potable water was calculated using Canadian model index (Canadian Council of Ministry of the Environment) water quality evaluation. The following thirteen variables that contributed in the index calculation are: water temperature, turbidity, pH, total hardness (as CaCO3), magnesium%, calcium%, sulfate%, iron mg/L, fluoride%, Nitrate%, chloride%, color, and conductivity. The samples were taken from the treated water effluent from 2005 to 2013. The study showed that the range of the water quality index for the raw water is (49-54) and can be classified as bad water and needs an advanced treatment. While the water quality index of the treated water was (77,78, 70, 67) for (Al-Qadisiya, Al-Dora, AlWahda and Al-Rasheed) respectively. Therefore, the water quality index of treated water of (Al-Qadisiya, Al-Dora, Al-Wahda and Al-Rasheed) can be classified within the third category (moderate).

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Keywords:  Canadian water quality index, raw water, treated water.

How to cite

TJES: Hazza MM.  Evaluating the quality of raw and treated water for a number of water treatment  plants in Baghdad, using Canadian model for water quality index. Tikrit Journal of Engineering Sciences 2017; 24 (3): 69-74.

APA: Hazza, M. M. (2017).  Evaluating the quality of raw and treated water for a number of water treatment  plants in Baghdad, using Canadian model for water quality index. Tikrit Journal of Engineering Sciences, 24(3): 69-74.