Performance Evaluation of Heavy Metal Removal through Vertical Scale Bed Adsorption Process

Main Article Content

R. Santhosh Kumar
S. Kalaiselvi

Keywords

Vertical Scale Bed, Heavy Metal Adsorption, Stimulation Analysis

Abstract

The removal of congo red dye was found to be 99.9% removal at the optimum contact time 130 minutes at pH4 of the synthetic solution at a dosage of 6g/1000ml and at an agitation rate of 150rpm.From the design perspective the results were subjected to modeling of two domains, isotherm (Langmuir, Freundlich and Temkin) modeling and kinetic (Pseudo First order, Pseudo Second order and Intra particle Diffusion) modeling. Further after the adsorption studies post characterization was carried out on the nanoparticles using Field emission gun scanning electron microscopy – EDAX analysis, FTIR and TEM analysis. From the observation of the results it was confirmed that both lead and zinc has been adsorbed to cobalt ferrite and manganese ferrite nanoparticles in significant amount. Regeneration studies has been attempted for the Vertical Scale Bed Removal from the cobalt ferrite nanoparticles by showing the variation in time of contact and the normality of sodium hydroxide and it was noted that the re-extraction of the contaminant was found to be linear with the above operating parameters. To check the efficiency of the selected adsorbent the continuous mode Vertical Scale Bed studies were carried out for synthetic lead, zinc and congo red dye solutions by varying bed depth and flow rate.

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