IJETSI

Title: THE EFFECT OF HYDRAULIC JUMP COAGULATION MIXER ON THE PERFORMANCE OF DRINKING WATER TREATMENT PLANT
Authors: Ali Hadi GHAWI
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University of Al-Qadisiyah, Collage of Engineering, Department of Civil Engineering, Iraq
MLA 8 Hadi GHAWI, Ali. "THE EFFECT OF HYDRAULIC JUMP COAGULATION MIXER ON THE PERFORMANCE OF DRINKING WATER TREATMENT PLANT." IJETSI, vol. 2, no. 1, 2017, pp. 553-550, ijetsi.org/more2017.php?id=45. APA Hadi GHAWI, A. (2017). THE EFFECT OF HYDRAULIC JUMP COAGULATION MIXER ON THE PERFORMANCE OF DRINKING WATER TREATMENT PLANT. IJETSI, 2(1), 553-550. Retrieved from http://ijetsi.org/more2017.php?id=45 Chicago Hadi GHAWI, Ali. "THE EFFECT OF HYDRAULIC JUMP COAGULATION MIXER ON THE PERFORMANCE OF DRINKING WATER TREATMENT PLANT." IJETSI 2, no. 1 (2017), 553-550. http://ijetsi.org/more2017.php?id=45.
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Abstract: Drinking water are the natural source for daily consumption which supplied from drinking water treatment plant, therefore the drinking water should be healthy and clear, and safe for drinking, and without odor. This research focuses on hydraulic jump mixing in the coagulation process for improved turbidity removal in water treatment. Hydraulic jump characteristics have been studied through physical model. Hydraulic jump mixing aims to instantly and efficiently disperse coagulant species into raw water, before flocculation processes. Mechanical mixing with a longer retention time cannot guarantee an instantaneous and uniform coagulant dispersion. To overcome this problem, the hydraulic jump can be used for chemicals mixing to replace the mechanical mixing by impeller. It is cheaper and easier. The results of experiment in University of Al-Qadisiyah Collage of Engineering Department of Civil Engineering Hydraulics Laboratory and the application on mathematical model showed that the velocity gradient of 800 s-1 is enough for hydraulic jump mixing. In this study pilot plant test was used to assess the effectiveness of hydraulic jump mixer module for treatment of synthetic turbid water using alum. Using various hydraulic jump experiments to test the turbidity removal performance, it is showed that hydraulic jump mixers are able to achieve performance equivalent to that of the mechanical mixing type at a lower coagulant dosage. Turbidity removal efficiency was sufficient to meet national drinking water limits (5 NTU) at optimum alum dose. Using 10 mg L-1 alum as a coagulant aid could improve turbidity removal and drinking water treatment plant.

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