Volume 12, Issue 2 (7-2016)
J Health Syst Res 2016, 12(2): 146-151 |
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Mohammad Reza Zare, Ali Fatehizadeh, Mohammad Mehdi Amin, Ensieh Taheri, Bijan Bina, Mohammad Reza Erfani, et al . Assessment of Probable Toxicity of 3 Kinds of Metal Plating Industry Wastewater on Bacteria of Sequencing Batch Reactor Units of Industrial Wastewater Treatment Plants. J Health Syst Res 2016; 12 (2) :146-151
URL: http://hsr.mui.ac.ir/article-1-862-en.html
URL: http://hsr.mui.ac.ir/article-1-862-en.html
Mohammad Reza Zare1 
, Ali Fatehizadeh2 , Mohammad Mehdi Amin3 , Ensieh Taheri2 , Bijan Bina4 , Mohammad Reza Erfani5 , Ayat Rahmani6 , Hasan Rahmani7
, Ali Fatehizadeh2 , Mohammad Mehdi Amin3 , Ensieh Taheri2 , Bijan Bina4 , Mohammad Reza Erfani5 , Ayat Rahmani6 , Hasan Rahmani7
1- Assistant Professor, Department of Environmental Health Engineering, Evaz School of Health, Larestan School of Medical Sciences, Larestan, AND School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
2- Assistant Professor, Department of Environmental Health Engineering, School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
3- Professor, Department of Environmental Health Engineering, School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
4- Professor, Department of Environmental Health Engineering, School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran Corresponding Author: Bijan Bina, Email: bbina123@yahoo.com
5- PhD Candidate, Department of Environmental Health Engineering, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
6- Assistant Professor, Department of Environmental Health Engineering, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
7- PhD Candidate, Department of Environmental Health Engineering, School of Health, Jondi Shapoor University of Medical Sciences, Ahvaz, Iran
2- Assistant Professor, Department of Environmental Health Engineering, School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
3- Professor, Department of Environmental Health Engineering, School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
4- Professor, Department of Environmental Health Engineering, School of Health, Environment Research Center, Isfahan University of Medical Sciences, Isfahan, Iran Corresponding Author: Bijan Bina, Email: bbina123@yahoo.com
5- PhD Candidate, Department of Environmental Health Engineering, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
6- Assistant Professor, Department of Environmental Health Engineering, School of Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
7- PhD Candidate, Department of Environmental Health Engineering, School of Health, Jondi Shapoor University of Medical Sciences, Ahvaz, Iran
Abstract: (1255 Views)
Background: The entrance of toxic compounds into wastewater treatment plants (WWTPs) can induce disorder in their biological units. Therefore, it is necessary to determine the sources of toxic wastewaters. In this study, the toxicity of the wastewater of 3 metal plating industries was assessed using sequencing batch reactor (SBR) bacteria.Methods: To obtain the 1-1000 ml/l concentrations, the 3 metal plating wastewater solutions were diluted using distilled water. To determine the growth inhibition in each concentration, the 0.5 cc cultured SBR bacteria on nutrient broth media was used and cultured on nutrient agar media. Data were analyzed using the Probit analysis in SPSS software and the 50% effective concentration (EC50) was calculated.Findings: According to the Probit analysis, there was no effect on the tested bacteria at the concentrations of 1 ml/l, less than 50 ml/l, and less than 100 ml/l of metal plating wastewater in samples 1, 2, and 3, respectively. However, all studied bacterial species were eliminated in the concentration of 1000 ml/l of each metal plating wastewater. Maximum and minimum EC50 were recorded for the metal plating wastewater sample number 3 (960 ml/l) and number 1 (6.5 ml/l), respectively.Conclusion: Results of this study showed that some metal plating wastewaters, even in very low concentrations, can induce adverse effects on the bacterial community structures of biological units of WWTPs. Thus, it is recommended that effluent standards and in situ treatment rules be applied according to the performed process type in such industries.
Type of Study: Research |
Subject:
education health and promotion
Received: 2020/07/16 | Accepted: 2016/07/15 | Published: 2016/07/15
Received: 2020/07/16 | Accepted: 2016/07/15 | Published: 2016/07/15
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