Document Type : Original Article
Authors
1
Student, Environmental Health Engineering, Student Research Committee, Sabzevar University of Medical Sciences, Sabzevar, Iran
2
Instructor, Environmental Health Engineering, Department of Environmental Health Engineering, School of Public Health, Sabzevar University of Medical Sciences, Sabzevar, Iran
Abstract
Background and Aims: Due to the water source limitation and industrial developing, increase of industry wastewater and water pollution is one of the most important environment and economic problems. Methylene blue is an indicator dye and has heterocyclic aromatic chemical compound, that after solution in water change to water dye. Objective of this research was, evaluation of methylene blue dye removal from aqueous solution using charcoal made from Pistacia terebinthus trees.
Materials and Method: This experimental study was performed on a lab scale. The impact of parameters such as effect of activation on the methylene blue dye (the physical, chemical with and without boiling), adsorbent dose (0.02-0.04-0.06-0.08 and 0.1 g) and different concentrations of dye ( 200, 300, 400 and 500 mg/L) ,contact times (5,10,20,30,60, and 120 min) and pH (2, 4, 6, 8 and 10) and temperature (10,20,30 and 40) was studied.
Results: The results of experiments demonstrated that, maximum removal rate was in chemical boiling activation, concentration of 100 mg/L methylene blue , the absorbent dose 0.1 g in 50 ml (2 g/L), the contact time of 120 minutes, the temperature 40 °C and 6 = pH of about 99present.
Conclusion: Due to the high capacity of the carbon from the mountain nuts, it can be used as a suitable absorbent, cheap and local alternative to water and wastewater treatment
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