ADSORPTION OF 4-CHLOROPHENOL AND HYDROQUINONE FROM AQUEOUS SOLUTION ONTO ACTIVATED OIL BEAN SEED SHELLS
Keywords:
Adsorption, 4-Chlorophenol, Hydroquinone, rate constant, UV SpectrophotometerAbstract
Phenolic compounds such as 4-Chlorophenol and Hydroquinone are among the hazardous pollutants which appear in almost all chemical and petrochemical effluents from industries. This study investigated the adsorption of 4-Chlorophenol and Hydroquinone from aqueous solution using activated oil bean seed shells (OBSS). Two different activated carbon was prepared from the seed shells of Ukpaka, Pentaclethra macrophylla benth, using two activating agents (ZnCl2 and H3PO4) respectively. The effects of contact time were evaluated using an oscillatory shaker and a Uv Spectrophotometer. Adsorption increased as the contact time increased with the optimum achieved at 50 minutes (for ZnCl2 activated oil bean seed shells) and 40 minutes (for H3PO4 activated oil bean seed shells). The rate constant was determined using first order kinetics. The rate constant k was calculated to be -0.005 moles per minute, and-0.004 moles per minute for 4-Chlorophenol and Hydroquinone concentration at 30 mg/l respectively using ZnCl2 activated carbon, and -0.0094 moles per min for 4-Chlorophenol, and -0.012 moles per minute for Hydroquinone using H3PO4 activated shells of oil bean seeds. The result revealed that ZnCl2 activated oil bean seed shells was more efficient in the adsorption of 4-Chlorophenol and Hydroquinone from an aqueous solution.
References
Ajayi, O. A., & Olawale, A. S. J. B. (2009). A comparative study of thermal and chemical activation of Canarium schweinfurthii nutshell. Journal of Applied Sciences Research, 5(12), 2148–2152.
Akpan, U. J., Chubu, J. M., & Olutoye, M. A. (2015). Melon husk-based activated carbon for treatment of industrial wastewater. Nigerian Journal of Technological Research, 10(1, Special Edition).
Anku, W. W., Mamo, M. A., & Govender, P. P. (2017). Phenolic compounds in water: Sources, reactivity, toxicity and treatment methods. InTech. https://doi.org/10.5772/66927
Giraldo, L., & Moreno-Pirajan, J. C. (2008). Cr(VI) adsorption from aqueous solution on activated carbons obtained from mineral carbon and lignocellulosic residues. Afinidad Barcelona, 63(525), 390–395.
Gosselin, R. E., Smith, R. P., & Hodge, H. C. (1984). Clinical toxicology of commercial products (5th ed.). Williams & Wilkins.
Jacob, A. G., Okunola, A., & Hamisu, S. (2015). Treatment of wastewater by activated carbon developed from Borassus aethiopum. Nigerian Journal of Material Science and Engineering, 6(1), 214–453.
Kulkarni, S. J., & Kaware, D. J. P. (2013). Review on research for removal of phenol from wastewater. International Journal of Scientific and Research Publications, 3(1), 1–4.
Tazik, M., Dehghani, M. H., & Yaghmaeian, K. (2023). 4-Chlorophenol adsorption from water solutions by activated carbon functionalized with amine groups: Response surface method and artificial neural networks. Scientific Reports, 13, 7831. https://doi.org/10.1038/s41598-023-35117-4
Timur, S., Kantarli, I. C., Onenc, S., & Yanik, J. (2010). Characterization and application of activated carbon produced from oak cups pulp. Journal of Analytical and Applied Pyrolysis, 89(1), 129–136.
Timurah, K., Hussein, M., Zainal, Z., & Rusli, R. (2015). Textural and chemical properties of activated carbon prepared from tropical peat soil by chemical activation method. International Journal of Environmental Research, 10, 986–1000.
Wang, S., & Li, H. (2007). Kinetic modeling and mechanism of dye adsorption on unburned carbon. Dyes and Pigments, 72(2), 308–314.
World Health Organization. (2008). Global water supply and sanitation assessment report. WHO.
Yusef, O., Khani, A., Nourmoradi, H., Ali, J., Taheri, F., Zhang, J., Zhang, C., & Jing, Y. (2008). Adsorption of malachite green from aqueous solution onto carbon prepared from Arundo donax root. Journal of Hazardous Materials, 150(3), 774–782.
Zhang, L., Wang, Y., Shang, N., & Smith, M. T. (1998). Benzene metabolites induce the loss and long arm deletion of chromosomes 5 and 7 in human lymphocytes. Leukemia Research, 22(2), 105–113.
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