Investigating the Effectiveness of Raw Okra (Abelmoschus esculentus L) and Raw Sugarcane (Saccharum officinarum) Wastes as Bioadsorbent of Heavy Metal in Aqueous Systems | Chapter 5 | Modern Advances in Geography, Environment and Earth Sciences Vol. 6

The adsorption technique was successful in condensing and concentrating metal ions from the aqueous phase to the adsorbent surface. Synthetic adsorbent is a well-established technology in waste water treatment, although synthetic adsorbent is frequently scarce and expensive. As a result, new adsorbents that are easily available at cheap cost are needed to remove metal pollutants from aqueous systems. Untreated industrial wastewater has higher levels of heavy metals, resulting in contamination and posing a serious environmental threat. In this study, agricultural by-products raw sugarcane waste and raw okra waste were utilised as adsorbents in the adsorption of Fe3+, Cd 2+, Pb 2+, Zn2+, and Ni 2+ from different aqueous solutions. The infrared spectra of okra and sugar cane waste was recorded in order to identify functional groups with metal ion adsorption binding capabilities. Batch studies were conducted to evaluate the adsorption process, and it was discovered that the okra waste could adsorb 5.05 percent of Fe3+, 44.95 percent of Cd 2+, 65.10 percent of Pb 2+, 38.78 percent of Zn2+, 57.80 percent of Ni 2+, while the sugarcane waste could only adsorb 3.61 percent of Fe3+, 35.06 percent of Cd 2+, 43.50 percent of Pb Raw okra waste was shown to be a more effective adsorbent material than raw sugarcane waste for removing heavy metals from aqueous systems in this study. The Freundlich adsorption model accurately described the sorption equilibrium of metal ions, but research has shown that a modified form of okra waste is an excellent adsorbent, and that raw sugar cane waste could be modified for better performance because it has the potential to remove heavy metals from waste water.

Author (S) Details

I. O. Olabanji
Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria.

E. A. Oluyemi
Department of Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria.

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