Clay Soil as a Sustainable and Low-Cost Adsorbent for Methylene Blue Dye Removal from Contaminated Water

Chibuike Divine Odunze *

Department of Environmental Sciences, Cyprus International University, North Cyprus, Mersin 10, Turkey.

Julius Adekunle Adetunji

Department of Bioengineering, Cyprus International University, North Cyprus, Mersin 10, Turkey.

Aisha Gana Suleiman

National Veterinary Research Institute Vom, Plateau State, Nigeria.

*Author to whom correspondence should be addressed.


Abstract

Dyes are synthetic or natural colourant which are often made up of complex aromatic molecular structures that are utilized by various textile industries for the production of garments and apparels. However, after the use of these dyes in the production of coloured fabrics a large amount of effluents containing coloured wastes are produced. These waste-water or product destroy both the environment's aesthetic qualities and aquatic life. The aim of this study was to evaluate the adsorption activity of red color clay soil in North Cyprus on MB dye as well as to understand the interaction of MB dye on the red color clay soil in North Cyprus and also to determine the factors that play an important role during the adsorption process. From the results, it showed that red color clay soil in North Cyprus efficiently adsorbs MB dye from solution. Subsequently, the results reveals that the adsorption activity between MB dye and red color clay soil fits best with Langmuir isotherm model based on the high value of the correlation coefficient (0.9946). This result indicates that monolayer adsorption occurred between the red color clay and MB dye. Additionally, it was discovered that chemisorption interaction occurred between MB dye and red color clay which was as a result of the adsorption process fitting best the pseudo-second-order kinetics model. Furthermore, the results obtained revealed that factors such as contact time, pH, adsorbent dosage and adsorbate dosage play an important role during the adsorption process. Also, the result obtained at each experimental procedure showed that optimum adsorption occurred at pH 7, at contact time of 60 minutes, MB dye concentration of 200 milligram and red color clay soil mass of 0.3 gram. Finally, the maximum adsorption capacity obtained in this study was 192.3077 milligram per gram. This result when compared to other studies did not attain the highest adsorption capacity, according to the literature findings.

Keywords: Adsorption, chemisorption, isotherm, kinetics model, MB dye, soil


How to Cite

Odunze, Chibuike Divine, Julius Adekunle Adetunji, and Aisha Gana Suleiman. 2025. “Clay Soil As a Sustainable and Low-Cost Adsorbent for Methylene Blue Dye Removal from Contaminated Water”. Asian Journal of Geological Research 8 (3):480-500. https://doi.org/10.9734/ajoger/2025/v8i3210.

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