Removal of Methylene Blue Dye from Textile Industry Wastewater by Sawdust of Pistachio Tree
Akram Ghorbanian (MSc)1, Azam Mahroudi (MSc)2, Hadi Eslami (PhD)3, Maryam Dolatabadi (MSc)4*
1 Department of Environmental Health, School of Health,
Mashhad University of Medical Sciences, Mashhad, Iran
2 Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran
3 Department of Environmental Health Engineering, School of Health,
Occupational Safety and Health Research Center, NICICO, World Safety Organization and
Rafsanjan University of Medical Sciences, Rafsanjan, Iran
4 Environmental Science and Technology Research Center, Department of Environmental Health Engineering,
School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
Received: 01.09.2020 Accepted: 22.12.2020
Introduction: Dyes are among dangerous contaminants that are often found in textile wastewater. These pollutants have significant health effects on humans, and destructive environmental effects on the ecosystem of aquatic plants and animals, and can alter the physicochemical properties of water. Hence, in this work, the methylene blue (MB) dye removal using sawdust of pistachio tree was investigated.
Materials and Methods: This study was performed experimentally on a laboratory scale. The influence of various factors including dye concentration, pH of the solution, sawdust of pistachio tree dosage, and reaction time on dye removal efficiency was investigated.
Results: The results showed that under optimized conditions of dye concentration of 50 mg L-1, pH of solution equal to 8.0, sawdust of pistachio tree dosage equal to 0.14 g L-1 and reaction time of 100 min, was 99.7%. The adsorption process follows the second order kinetics of R2= 0.9931 and the Langmuir isotherm R2= 0.9943.
Conclusion: The adsorption process using sawdust of pistachio tree can be used as a high efficiency economic adsorbent in textile wastewater treatment.
►Please cite this article as follows:
Ghorbanian A, Mahroudi A, Eslami H, Dolatabadi M. Removal of methylene blue dye from textile industry wastewater by sawdust of pistachio tree. Pistachio and Health Journal. 2020; 3 (4): 63-76.