Mass Transfer Model for Basic Blue Adsorption onto Pillared Bentonite Clay Using Langmuir Equilibrium and Taking into Account the Intra Particle Concentration Gradient

Priyantini, Hadiatni Rita and Sediawan, Wahyudi Budi and ., Rochmadi and Prasetyo, Imam (2013) Mass Transfer Model for Basic Blue Adsorption onto Pillared Bentonite Clay Using Langmuir Equilibrium and Taking into Account the Intra Particle Concentration Gradient. Prosiding Seminar Nasional Teknik Kimia "Kejuangan· Pengembangan Teknologi Kimia untuk Pengolahan Sumber Daya Alam Indonesia . A7-1. ISSN 1693-4393

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Abstract

Bentonite clay from Pacitan, East Java, was made using intercalation and pil/arization method. using cationic surfactant HDTMA-Cl as intercalating agent and NaOH-AICI; mixture with OHIAI ratio was 0,8 as pi/loring agent at BrfC. Furthermore, calcination was done at 50rfC for 4 hours. Adsorption process was done at laboratory scale batch :.ystem with initial Basic Blue 41 dye concentration varied between 100 ppm, 200 ppm, 300 ppm, 400 ppm,and 500 ppm for adsorbent mass ratio was 0, I giL and adsorbent size of 100 mesh. Adsorbent mass ratio was varied 0,/ giL; 0,2 giL; 0,25 giL; 0,35 giL; and 0,4 giL for initial dye concentration of 600 ppm. Adsorption equilibrium was analyzed using Langmuir equilibrium model, and kinetic model was developed with considering convection mass transfer at adsorbent surface and intra-particle dye diffusion. Mathematic model and experimental data was used to calculate dye convective mass transfer and effective diffusion coefficient using computer program. The result showed that Basic Blue 41 -pil/arizedbentonite clay equilibrium obeyed Langmuir equilibrium model. Developed kinetic model was relatively fitted to experimental data. Maximum dye removal was 97.947 %. Generally, Basic Blue 41 adsorption kinetic was controlled by film resistance at adsorbent surface and intra-particle diffusion resistance.

Item Type: Article
Uncontrolled Keywords: Adsorption; Basic Blue;Bentonite Clay; Modeling; Pillarization
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Engineering > Department of Chemical Engineering
Depositing User: Ester Sri W. 196039
Date Deposited: 12 Feb 2019 01:52
Last Modified: 12 Feb 2019 01:52
URI: http://repository.ubaya.ac.id/id/eprint/34329

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