Volume 22 - Supplement                   jour guilan uni med sci 2014, 22 - Supplement : 60-66 | Back to browse issues page

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Mirbolooki H, Pendashteh A, Naimi joubani M, Roohbakhsh E. Decolorization of Synthetic Dyed Saline Wastewater by Biological Method. jour guilan uni med sci. 2014; 22 (S1) :60-66
URL: http://journal.gums.ac.ir/article-1-595-en.html
Islamic Azad University
Abstract:   (5002 Views)
Abstract Introduction: Discharging wastewaters containing dyes into water resources causes adverse environmental effects such as destroying organisms, increasing BOD and rivers depreciation. Different physical and chemical treatment methods are used to treat this kind of effluent, each of which has its own problems. Objectives: In this research, biological treatment method was used to remove dyes used in textile industry, from synthetic wastewater on the ground that the method is economical and environmentally friendly in comparison with the other ones Materials and Methods: The studied textile dye is Reactive Blue 19 and decolorization tests from four samples of synthetic wastewater were performed by SBR system, using activated sludge in aerobic condition and degradation of dye molecules were measured by COD tests. The place where the samples were prepared and decolorization tests were conducted, was water and wastewater laboratory of faculty of health, Guilan University of Medical Sciences, northern Iran. Results: Decolorization efficiency of two synthetic wastewater samples containing dye were 60% and about 90% during 24 hours. Also with regard to the optimal treatment process in saline condition, the efficiency of dye removal for two synthetic concentration samples containing dye and two different salt concentrations has been reported about 60%. Conclusion: The results show that biological treatment method can serve as an effective method for decolorization of wastewaters containing dye, even in saline condition.
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Type of Study: Research | Subject: Special
Received: 2014/04/22 | Accepted: 2014/04/22 | Published: 2014/04/22

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