Volume 12, Issue 3 (10-2016)                   HSR 2016, 12(3): 256-259 | Back to browse issues page

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Zabihollahi S, Nourmoradi H, Pourzamani H. Investigation of Chemical Coagulation and Flocculation Efficiency of Different Coagulants (Alum, Ferric Chloride, PAC, and Lime) in Navy Blue CE-RN Textile Dye Removal from Aqueous Solutions. HSR 2016; 12 (3) :256-259
URL: http://hsr.mui.ac.ir/article-1-885-en.html
1- Department of Environmental Health Engineering, School of Health, Sabzevar Branch, Islamic Azad University, Sabzevar, Iran
2- Assistant Professor, Department of Environmental Health Engineering, School of Health, Ilam University of Medical Sciences, Ilam, Iran
3- Associate Professor, Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease AND Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran Corresponding Author: Hamidreza Pourzamani, Email: pourzamani@hlth.mui.ac.ir
Abstract:   (804 Views)
Background: In this study, coagulation efficiency of alum, ferric chloride, polyaluminium ‎chloride (PAC), and lime was investigated in the removal of Navy Blue CE-RN dye from textile wastewater.Methods: Characteristics of dye such as dominant wavelength, hue, luminance degree, and purity of Navy Blue CE-RN were determined through spectrophotometric-multi-wavelength method. Optimum dose, optimum pH, and sludge volume index (SVI) of coagulants were determined using jar test. The efficiency of coagulants was compared in optimum conditions. Cost and removal efficiency were considered in the selection of the best coagulant.Findings: The obtained dominant wavelength, luminance degree, and purity of dye were 473 nm, 19%, and 53%, respectively. PAC (dose of 0.1 g/l and optimum pH = 6) had the highest removal efficiency in the removal of Chemical oxygen demand (COD) and dye (84% and 93%, respectively). The SVI of PAC was 1324 l/g.Conclusion: The results of this study showed that PAC can be an appropriate, efficient, and cost-effective coagulant in the removal of Navy Blue CE-RN dye.
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Type of Study: Research | Subject: education health and promotion
Received: 2020/07/16 | Accepted: 2016/10/15 | Published: 2016/10/15

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