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Adsorption of phenol from aqueous solution by using carbonised beet pulp
Gülbeyi Dursun1, Handan Ciçek, Arzu Y Dursun
1Department of Chemical Engineering, Firat University, 23279 Elazig, Turkey. gdursun@firat.edu.tr
Journal of Hazardous Materials
|July 2, 2005
Summary
Beet pulp waste was converted into activated carbon for effective phenol removal from water. This sustainable adsorbent demonstrated a high adsorption capacity, making it a promising solution for wastewater treatment.
Area of Science:
- Environmental Chemistry
- Materials Science
- Chemical Engineering
Background:
- Beet pulp is a low-value byproduct of the sugar industry.
- Developing cost-effective adsorbents for phenol removal is crucial for wastewater treatment.
Purpose of the Study:
- To prepare activated carbon from beet pulp for phenol adsorption.
- To investigate the adsorption capacity, kinetics, and thermodynamics of phenol onto beet pulp carbon (BPC).
Main Methods:
- Carbonization of beet pulp in a nitrogen atmosphere at 600°C.
- Characterization of BPC surface area using the BET method.
- Batch adsorption experiments to study phenol removal at various concentrations and temperatures.
Main Results:
- BPC exhibited a surface area of 47.5 m²/g.
- Maximum phenol adsorption capacity of 89.5 mg/g was achieved at 60°C and pH 6.0.
- Adsorption equilibrium data best fitted the Freundlich model, and kinetics followed the pseudo-second-order model.
Conclusions:
- Beet pulp-derived carbon is an effective adsorbent for phenol removal.
- The adsorption process is endothermic and spontaneous, indicating favorable conditions at higher temperatures.
- This method offers a sustainable approach to valorize industrial byproducts for environmental remediation.