Surface modification of date seeds (Phoenix dactylifera) using potassium hydroxide for wastewater treatment to remove azo dye

In this study, a low cost carbon adsorbent was prepared from date seeds. Their surface was modified with potassium hydroxide for use as an adsorbent for the removal of synthetic dye (methyl orange (MO)) from aqueous solutions. The effects of initial MO concentration, adsorbent dosage and temperature...

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Bibliographic Details
Published in:Water practice and technology 2018-12, Vol.13 (4), p.859-870
Main Authors: Arunachalam, Abinaya, Chaudhuri, Rajib Ghosh, Iype, Eldhose, Prakash Kumar, B. G.
Format: Article
Language:English
Subjects:
Activated carbon
Adsorbents
Adsorption
Aqueous solutions
Azo dyes
Biomass
Carbohydrates
Cellulose
Desalination
Dyes
Experiments
Factorial design
Fourier transforms
Hydroxides
Interactions
Lignin
Phenols
Pollutants
Potash
Potassium
Potassium hydroxide
Potassium hydroxides
Removal
Seeds
Solutions
Wastewater
Wastewater treatment
Water treatment
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Summary:In this study, a low cost carbon adsorbent was prepared from date seeds. Their surface was modified with potassium hydroxide for use as an adsorbent for the removal of synthetic dye (methyl orange (MO)) from aqueous solutions. The effects of initial MO concentration, adsorbent dosage and temperature were studied. A two-cubed (23) factorial design was carried out on the experimental data, with two replications for the process optimization. The results showed that all three factors and their interactions up to the third order were significant for the removal efficiency of MO. Maximum equilibrium adsorption capacity was 66.26 mg/g at 318 K.
ISSN:1751-231X
1751-231X
DOI:10.2166/wpt.2018.095