Ultrasonic-Assisted Removal of Eriochrome Black T onto Vermicompost: Characterization, Isotherm and Kinetic Modelling

Authors : Zeynep CİGEROGLU, Eyüp YILDIRIR
Pages : 1251-1262
Doi:10.18596/jotcsa.997521
View : 42 | Download : 11
Publication Date : 2021-11-30
Article Type : Research Paper
Abstract :Recently, utilization of biological adsorbents plays an important role in the removal of toxic dyes such as Eriochrome Black T insert ignore into journalissuearticles values(EBT); azo-dye as they are considered as being produced from natural renewable source, easy availability, low cost, and being environmentally friendly. In this study, vermicompost insert ignore into journalissuearticles values(VC); was utilized to remove Eriochrome Black T insert ignore into journalissuearticles values(EBT); azo-dye from aqueous solution along ultrasonic ultrasonic-assisted adsorption. The parameters such as pH, adsorbent amount, operating time, and initial EBT concentration were investigated. The highest adsorption capacity was obtained as 50.64 insert ignore into journalissuearticles values(mg-EBT g-1-VC); at the pH of value of 2 after 2 minutes of ultrasonic adsorption. Pseudo first order kinetic model fitted very well with the experimental data insert ignore into journalissuearticles values(R2=0.9824);. The determination coefficient of Temkin isotherm model insert ignore into journalissuearticles values(R2=0.8659); revealed that suggested model was compatible to experimental results. The results suggested that ultrasonic assisted adsorption of EBT onto VC could be cost- and time-efficient. Besides, the Scanning Electron Microscopy insert ignore into journalissuearticles values(SEM); analysis of adsorbent identified the surface structure morphology of VC. Moreover, functional groups of VC were detected after and before the ultrasonic-assisted adsorption by using Fourier Transform Infrared Spectroscopy insert ignore into journalissuearticles values(FTIR);. Thus, interaction mechanism between VC and EBT were determined.
Keywords : ultrasonic assisted adsorption, Vermicompost, Eriochrome Black T

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