Adsorption Studies of Silica Adsorbent Using Rice Husk as a Base Material for Metal Ions Removal from Aqueous Solution
American Journal of Chemical Engineering
Volume 8, Issue 2, March 2020, Pages: 48-53
Received: Mar. 18, 2020;
Accepted: Apr. 8, 2020;
Published: Apr. 28, 2020
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Rose Erdoo Kukwa, Department of Chemistry, Faculty of Science, Benue State University, Makurdi, Nigeria
Donald Tyoker Kukwa, Department of Engineering and the Built Environment, Durban University of Technology, Durban, South Africa
Ahola David Oklo, Department of Chemistry, Faculty of Science, Benue State University, Makurdi, Nigeria
Terungwa Thaddeus Ligom, Department of Chemistry, Faculty of Science, Benue State University, Makurdi, Nigeria
Benjamin Ishwah, Department of Chemistry, Faculty of Science, Benue State University, Makurdi, Nigeria
John Ajegi Omenka, College of Education Oju, Oju, Benue State, Nigeria
This study was carried out to evaluate the efficiency of metal ions removal from aqueous solution using silica adsorbent. Silica was extracted from rice husk using sol-gel method. The silica was modified with 1.0 M of nitric acid. Using batch adsorption technique, the effects of temperature, pH, contact time and adsorbent dosage on adsorption process of Cu (II), Zn (II), Mn (II) and Pb (II) ions were studied using standard solutions of their salts. Percentage removal of the metals ions studied decreased as the temperature was varied between 28°C and 43°C. Percentage removal of metal ions studied showed an increase at different pH varying from 4 to 8 and decreased after the pH 8. The variation of contact time between 2 and 8 hours showed a sharp increase in metals removal from 2 to 6 hours but a slow increase after 6 hours. The percentage removal of metal ions increase as the adsorbent dosage increased between 0.5 g and 2.0 g. The maximum percentage removal of metal ions was found to be 99.48%. The general observed trend of efficiency being Cu>Pb>Zn>Mn. The experimental data was also tested using adsorption isotherm models of Langmuir and Freundlich and Langmuir model was found to be the best fit for the data.
Rose Erdoo Kukwa,
Donald Tyoker Kukwa,
Ahola David Oklo,
Terungwa Thaddeus Ligom,
John Ajegi Omenka,
Adsorption Studies of Silica Adsorbent Using Rice Husk as a Base Material for Metal Ions Removal from Aqueous Solution, American Journal of Chemical Engineering.
Vol. 8, No. 2,
2020, pp. 48-53.
Adam, F., Balakrishnan, S. and Wong, P. (2006). Rice husk ash silica as a support material for ruthenium based heterogeneous catalyst. Journal of Physical Science. 17 (2): 1–13.
Otaru, A. J., Ameh, C. U., Abdulkareem, A. S., Odigure, J. O. and Okafor, J. O. (2013). Development and characterization of adsorbent from rice husk ash to bleach vegetable oils. Journal of Applied Chemistry. 4: 42-49.
Juliano, B. (1985). An improved rice hull ash concrete admixture. “Rice: Chemistryand Technology” Patent EP0330462A2. 2nd ed.
Gidde, M. R., and Jivani, A. P. (2007). Waste To Wealth - Potential of rice husk In India, A literature review, Proceedings of The International Conference On Cleaner Technologies and Environmental Management PEC, Pondicherry, India. 586-590.
Types and application of adsorbents www.marketsandmarkets.com/Market-report. Retrieved 29 January, 2017.
Siswoyo, E. (2014). Development of low-cost adsorbents based on solid waste materials to remove heavy metals ions in water. A Research Thesis submitted to division of Environmtental Science development, Graduate School. Hokkaido University.
Dara, S. S. (2005). Environmental chemistry and pollution control. 8th ed. Ram Nagar, New Dehli, Rajandra Ravindra printers. 342-348.
Dada, O. Ojediran, J. O. and Olalekan, A. P. (2013). Sorption of Pb2+ from aqueous solution unto modified rice husk: Isotherms Studies, Journal of Advances in Physical Chemistry. 6: 1-6.
Prabha R. T., and Udayashankara, T. H. (2014). Removal of heavy metal from synthetic wastewater using rice husk and groundnut shell as adsorbents, Journal of Environmental Science, Toxicology and Food Technology. 8: 26-34.
Adejo, S. O. and Ekwenchi, M. M. (2014). Proposing a new empirical adsorption isotherm known as Adejo-Ekwenchi isotherm, Journal of Applied Chemistry, 6: 66-71.
Atkins, P. W. (1990). Physical chemistry, 4th edition oxford university press, Tokyo: 884.
Protor, A., Shultz, J. and Kalapathy, U. (2000). A simple method for production of pure Silica from rice hull ash. Journal of Bioresource Technology. 73: 257–264.
Okafor, P. C., Okon, P. U., Daniel, E. F. and Ebenso, E. E. (2012). Adsorption Capacity of Coconut (Cocos nucifera L.) Shell for Lead, Copper, Cadmium and Arsenic from Aqueous Solutions, International Journal of Electrochemical Scienc., 7: 12354-12369.
Atsar, F. S. (2013) Removal of heaavy metals from spent lubricating oil using modified clay. A dissertation submitted to postgraduate school, in chemistry department, Benue State University, Makurdi.
Vilar, V. J. P., Botelho, C. M. S and Boaventura, R. A. R. (2005) “Influence of pH, ionic Strength and temperature on lead biosorption by gelidium and agar extraction Algal waste, Process Biochem, 40: 3267-3275.
Adedamola, T. O. and Olugbenga, S. B. (2016). Sequestering heavy metals from waste Water using cow dung, Journal of Water Resources and Industry, 13; 1-13.
Bayat, B. (2002). Comparative study of adsorption properties of Turkish fly ash, the case of nickel (II), copper (II) and zinc (II), Journal of Hazardous material, 144: 251-273.
Augustine, A. A., Orike, B. D. and Edidiong, A. D. (2007). Adsorption kinetics and Modelling of Cu (II) ion sorption from aqueous solution by mercaptoacetic Acid modified cassava wastes, Journal of Environmental, Agricultural and Food chemistry, 6 (9): 309-312.
Wong, J. J. and Sauepra, S. P. (2010). Biosorption of chromium (vi) using rice husk ash modified rice husk ash, Journal of Environmental Research, 4 (3): 244-250.
Olayinka, O. K., Oyedeji, O. A. and Oyeyiola, O. A. (2009). Removal of chromium and Nickel ions from aqueous solution by adsorption on modified coconut husk, African Journal of Environmental Science and Technology, 3 (10): 286-296.
Moyo, M., Muguni, L. and Nyamunda, B. C. (2012). Optimization of copper and zinc Ions removal from aqueous solution by coal fly ash as an adsorbent, International Journal of Science and Technology, 4 (4): 1760-1765.
Handojo, D, U and Mohd, R. S., (2007). Adsorption of Heavy Metals from Water and Wastewater Using Low Cost Adsorbents from Agricultural By-Products, Asian Journal of water, environment and pollution, 6 (2): 73-80.
Kadirvelu, K and Namasivayam, C, (2003). Activated carbon from coconut coir pith as metal adsorbent: adsorption of Cd2+ from aqueous solution. Advances in Environmental Research, 7: 471-478.
Hill, T. L. (1952). Theory of physical adsorption, Advances in Catalysis, 4: 211-258.
Dada, A. O., Olalekan, A. P. and Olatunya, A. M. (2012). Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms studies of equilibrium sorption of Zn unto phosphonic acid modified rice husk, Journal of applied chemistry, 3: 38-45.
Ahmed, M. S., Hanan, M. E. and Labata, F. T. (2016). Removal of Pb (II) ions from Aqueous solutions by sulphoric acid treated palm tree leaves. Journal of Taiwan Institute of Chemical Engineers, 58: 264-273.