Author/Authors :
Yari، Ahmad Reza نويسنده Department of Environmental Health Engineering, School of Public Health, Qom University of Medical Sciences, Qom, Iran , , Nazari، Shahram نويسنده , , Rastegar، Ayoob نويسنده Department of Environmental Health Engineering, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran , , Alizadeh Matboo، Soudabeh نويسنده Ardabil University of Medical Sciences , , Majidi، Gharib نويسنده Qom University of Medical Sciences and Student Research Committee , , Tanhaye Reshvanloo، Mehdi نويسنده Qom University of Medical Sciences and Student Research Committee ,
Abstract :
Background and Purpose:Organic dyes with a complex structure are often toxic, carcinogenic, mutagenic, non-biodegradation and stable in the environment and if released to the environment without treatment can endanger the environment and human health. The aim was to evaluate the performance nanoscalezero-valent iron (NZVI) in the removal of dye acid red 18 (AR18) from aqueous solutions.
Materials and Methods:This study was conducted at the laboratory scale. In this study, the removal efficiency of AR18 from a synthetic solution by NZVI was investigated. As well as the effect of solution pH, dye concentration, the concentration of NZVI and contact time in decolorization efficiency was investigated.
Results:The results show that in pH = 3, contact time of 80 minutes, dye concentration of 25 mg/l and concentration of NZVI of 2 g/l, the removal efficiency was about 94%.
Conclusion:According to the results of experiments, NZVI has high efficiency in removal of AR18 from aqueous solution.
