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Paper Information

Journal:   HEALTH SCOPE   2013 , Volume 2 , Number 3; Page(s) 136 To 144.
 
Paper: 

ADSORPTION OF METHYLENE BLUE DYE FROM AQUEOUS SOLUTIONS BY MODIFIED PUMICE STONE: KINETICS AND EQUILIBRIUM STUDIES

 
 
Author(s):  DERAKHSHAN ZAHRA, BAGHAPOUR MOHAMMAD ALI*, RANJBAR MOJDEH, FARAMARZIAN MOHAMMAD
 
* DEPARTMENT OF ENVIRONMENTAL HEALTH ENGINEERING, SCHOOL OF HEALTH, SHIRAZ UNIVERSITY OF MEDICAL SCIENCES, SHIRAZ, IR IRAN
 
Abstract: 

Background: Dyes are one of the most important industrial pollutants, especially in textile industries. Many methods have been proposed in order to remove color from wastewater among which, adsorption is more acceptable due to the ability for its use in the large scale.
Objectives: The objective of this study was to investigate pumice as an inexpensive adsorbent for removal of Methylene Blue from aqueous solutions.
Materials and Methods: In this work the Modified Pumice Stone has been applied for removal of the Methylene Blue dye from aqueous environments. The effect of pH, contact time, initial concentration and amount of adsorbent were considered. In order to investigate the mechanism of the adsorption process, several kinetic models including pseudo-first order, pseudo-second order and intra-particle diffusion were used. In addition, equilibrium data was fitted on to Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models.
Results: Results showed that the adsorption of the Methylene Blue was enhanced with increasing initial dye concentration, pH and contact time. The optimum pH was 10. The qmax for adsorption of methylene blue dye from the Langmuir model was 15.87 mg/g. Considering the values of R2 (0.999) and X2, Freundlich isotherm model and pseudo-second order kinetic model had the best fitness.
Conclusions: This study has demonstrated that the modified Pumice stone with HCl can be employed as effective and inexpensive adsorbent for the removal of Methylene Blue from aqueous environments.

 
Keyword(s): PUMICE, METHYLENE BLUE, ADSORPTION
 
 
References: 
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Cite:
APA: Copy

DERAKHSHAN, Z., & BAGHAPOUR, M., & RANJBAR, M., & FARAMARZIAN, M. (2013). ADSORPTION OF METHYLENE BLUE DYE FROM AQUEOUS SOLUTIONS BY MODIFIED PUMICE STONE: KINETICS AND EQUILIBRIUM STUDIES. HEALTH SCOPE, 2(3), 136-144. https://www.sid.ir/en/journal/ViewPaper.aspx?id=437193



Vancouver: Copy

DERAKHSHAN ZAHRA, BAGHAPOUR MOHAMMAD ALI, RANJBAR MOJDEH, FARAMARZIAN MOHAMMAD. ADSORPTION OF METHYLENE BLUE DYE FROM AQUEOUS SOLUTIONS BY MODIFIED PUMICE STONE: KINETICS AND EQUILIBRIUM STUDIES. HEALTH SCOPE. 2013 [cited 2021April12];2(3):136-144. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=437193



IEEE: Copy

DERAKHSHAN, Z., BAGHAPOUR, M., RANJBAR, M., FARAMARZIAN, M., 2013. ADSORPTION OF METHYLENE BLUE DYE FROM AQUEOUS SOLUTIONS BY MODIFIED PUMICE STONE: KINETICS AND EQUILIBRIUM STUDIES. HEALTH SCOPE, [online] 2(3), pp.136-144. Available at: <https://www.sid.ir/en/journal/ViewPaper.aspx?id=437193>.



 
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