Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)

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Evaluation of Combined Ozonation and Activated Carbon Adsorption for Eco-Efficient Color Removal in Sugar Refining

Authors
Maral Ajamian1, *
1Khuzestan Sugarcane and By-Products Development Research and Training Institute, Ahvaz, Iran
*Corresponding author. Email: maral.ajamian@gmail.com
Corresponding Author
Maral Ajamian
Available Online 14 May 2026.
DOI
10.2991/978-94-6239-668-5_78How to use a DOI?
Keywords
Ozonation; Activated Carbon; Sugar Refinery; Sulphitation; Environmental Sustainability
Abstract

The color of sugar crystals is one of the most important determining parameters in the quality of white sugar. Conventional decolorization methods in sugar refinery units require the use of chemicals and may lead to environmental pollution (as a result of the production of sulfur dioxide gas). Using ozone for decolorization is one of the promising methods in this field. In the present research, laboratory-scale experiments were carried out on operational liquor samples from sugar refinery unit to assess the feasibility of ozonation as an alternative decolorization process. To optimize the combined process, independent variables including activated carbon dosage and contact time were selected, while the percentage of color removal was considered as the response factor. Based on the analysis of variance (ANOVA), the linear model for color removal was statistically significant (p < 0.05), confirming the adequacy and reliability of the fitted model. Optimization of contact time and adsorbent dosage yielded a target color removal efficiency of approximately 55%. The results demonstrate that integrating ozonation with activated carbon adsorption not only enhances color reduction but also decreases ozone demand and operational costs, presenting a technically feasible and eco-efficient alternative for sugar refinery unit.

Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
Series
Advances in Engineering Research
Publication Date
14 May 2026
ISBN
978-94-6239-668-5
ISSN
2352-5401
DOI
10.2991/978-94-6239-668-5_78How to use a DOI?
Copyright
© 2026 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Maral Ajamian
PY  - 2026
DA  - 2026/05/14
TI  - Evaluation of Combined Ozonation and Activated Carbon Adsorption for Eco-Efficient Color Removal in Sugar Refining
BT  - Proceedings of the International Conference on Current Problems in Engineering and Applied Sciences (ICCPEAS 2025)
PB  - Atlantis Press
SP  - 756
EP  - 761
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-668-5_78
DO  - 10.2991/978-94-6239-668-5_78
ID  - Ajamian2026
ER  -