Farayandno

Farayandno

Effect of Synthesis Parameters on Tire Waste-Derived Carbon Adsorbents for Arsenic Removal from Aqueous Solution

Document Type : Original research

Authors
1 Master Student, Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran
2 Assistant Professor, Faculty of Chemical Engineering, Sahand University of Technology, Tabriz, Iran
Abstract
In this study, carbon adsorbents were synthesized from tire waste using a dry carbonization process to remove inorganic arsenic ions from aqueous environments. The influence of various carbonization process parameters such as holding time (0.5 to 4 hours), process temperature (400 to 850°C), reactor pressure (-0.6 to 10 bar), and particle size on the mass yield and adsorption capacity of the adsorbents was investigated. Subsequently, the porosity and functional groups of the adsorbents were characterized using FTIR, BET-BJH, and XRD techniques. The results indicated that all variables positively impacted the achievement of optimal conditions. The highest adsorption capacity for arsenic ion removal was obtained under the optimal conditions of a 2-hour holding time, a temperature of 700°C, a pressure of -0.3 bar, and a particle size of 3 mm. The findings showed that the char derived from tire waste could serve as a relatively cost-effective adsorbent for the remediation of arsenic-contaminated water.
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