Affiliation:
1. Department of Environmental Engineering, Faculty of Civil Engineering, K. N. Toosi University of Technology, Tehran, Iran
Abstract
Clarifying is one of the most crucial stages in water treatment at water treatment plants. Determining the type of the clarifier in water treatment plants and using it efficiently is necessary. In this study, a pilot is designed and constructed in which the pulsator, the superpulsator and the accelerator are simulated. For each system, turbidity removal efficiency for different influent turbidities and flow rates were studied and the optimum condition was obtained. The results showed that the superpulsator has a superior performance compared to the pulsator, and the pulsator has a superior performance compared to the accelerator and these differences are more sensible at higher flow rates. Also, the best condition for achieving the highest efficiency for the pulsator and the superpulsator is determined to be at flow rate 3 lit/min for an initial turbidity of 2,500 NTU with alum as the coagulant and the highest efficiency for the accelerator is determined to be at flow rate 3 lit/min for an initial turbidity of 2,500 NTU with ferric chloride as the coagulant. Comparing the turbidity removal efficiency shows that for 67% of the cases, ferric chloride has a better performance as the coagulant compared to alum and increasing the influent turbidity leads to an increase in the removal efficiency. Furthermore, three water treatment plants located in Tehran were studied and their characteristics were compared and suggestions were made to enhance their qualities.
Subject
Water Science and Technology
Reference33 articles.
1. A review on potential usage of industrial waste materials for binding heavy metal ions from aqueous solutions;Ahmed;Journal of Water Process Engineering,2016
2. Coagulation/flocculation process and sludge conditioning in beverage industrial wastewater treatment;Amuda;Journal of Hazardous Materials,2007
3. A review on the applicability of integrated/hybrid membrane processes in water treatment and desalination plants;Ang;Desalination,2015
4. Drinking water insecurity: water quality and access in coastal south-western Bangladesh;Benneyworth;International Journal of Environmental Health Research,2016
5. Evaluation of industrial dyeing wastewater treatment with coagulants;Bidhendi;International Journal of Environmental Research,2007
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