Removal of Congo red dye from contaminated groundwater using iron oxide-coated waterwork sludge: Sorption kinetic and isotherms

Adsorption, photocatalysis, biodegradation, chemical coagulation, and ion exchange are all accepted procedures for removing Congo red dye from contaminated substances. Adsorption is among the most effective treatments for Congo red contamination due to its high efficacy, simplicity, and low cost of...

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Bibliographic Details
Main Authors: Khadum, Ahmed M., Abdulredha, Muhammad, Alquzweeni, Saif Salah
Format: Conference Proceeding
Language:English
Subjects:
Adsorption
Coagulation
Contamination
Dyes
Finite element method
Groundwater pollution
Ion exchange
Iron oxides
Isotherms
Sludge
Sorption
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Summary:Adsorption, photocatalysis, biodegradation, chemical coagulation, and ion exchange are all accepted procedures for removing Congo red dye from contaminated substances. Adsorption is among the most effective treatments for Congo red contamination due to its high efficacy, simplicity, and low cost of operation. A simple precipitation procedure can thus be used to create iron-oxide nano-particles-immobilized waterwork sludge that can potentially be used to remove Congo red from groundwater. This study aimed to develop a new adsorbent in this matter and to then investigate the possibility of using the resulting iron-oxide-coated waterwork sludge to remove Congo red from contaminated groundwater. The Langmuir isotherm model fits the sorption data for Congo red more effectively than the Freundlich model, and a finite element method using COMSOL software with the Multiphysics 3.5a module was applied to model the equilibrium transport of Congo red via a permeable reactive barrier (PRB). The experiment.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0207128