Adsorption of Some Heavy Metals from Wastewater using Fine Sand and Zeolite


  • Benjamin Ishwah Department of Chemistry Benue State University Makurdi, Nigeria
  • Rose. E. Kukwa Department of Chemistry, Benue State University, Makurdi, Nigeria
  • John. O. Ajegi College of Education Oju, Benue State, Nigeria.
  • Teghtegh. F. Samoh Departments of Chemistry, University of Ilorin, Ilorin, Kwara State, Nigeria.
  • Terhile. M. Iortile Department of Chemistry, Benue State University, Makurdi, Nigeria.
  • Tor P. Ngunoon Departments of Chemistry, Joseph Sarwuan Tarka University, Makurdi, Nigeria.
  • Solomom. D. Igbawase Department of Chemistry, Benue State University, Makurdi, Nigeria.
  • Abah. C. Nyerere Department of Chemistry, Benue State University, Makurdi, Nigeria.


Zeolite, Heavy Metals, Fine Sand, Column, Soap Stock, Physical Precipitation


In this study, successive columns containing different types of solid state materials were used to investigate the treatment efficiency of soya bean oil mill wastewater (soap stock) using heavy metals analysis. Soap stock is a liquid waste obtained from soya bean oil industry from the neutralization process which has several environmental   issues due to its high amount of organic and inorganic pollutants. Soap stock emerges from the refining process when oil is treated with a dilute alkali solution separating the FFAs as soaps.  In this present study, an attempt was made at  treating the wastewater using successive columns containing different types of solid state materials. The wastewater was passed through successive columns of fine sand, Zeolite and Zeolite/fine sand composite.. This treatment method decreased the toxic concentration of heavy metals assessed which include Pb, Cu, Zn, Ni  and Cd  by mean percentages  of 96.60%, 100%, 62.0%, 16.10% and 96.60%  respectively. Most contaminants were removed in the Zeolite/sand composite column possibly as a result of ion exchange capacity in addition to   high sorption affinity of Zeolite on its active sites. This simple Zeolite based method enable us to obtain   environmentally friendly treated soya bean oil water that can be safely used for irrigation purposes.    


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How to Cite

Ishwah, B., Kukwa, R. E. ., Ajegi , J. O., Samoh, T. F. ., Iortile , T. M. ., Ngunoon , T. . P., Igbawase , S. D., & Nyerere , A. C. . (2022). Adsorption of Some Heavy Metals from Wastewater using Fine Sand and Zeolite . American Journal of Chemistry and Pharmacy, 1(1), 11–17. Retrieved from

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