Removal of Fe+3 and Cu+2 Ions from Aqueous Solutions by Adsorption Using Peanut Hulls

Abstract

The present study was conducted to evaluate the possibility of using peanut hulls for the removal of Fe +3 and Cu +2 from aqueous solutions.This paper incorporates the effects of dose, concentration and pH.Adsorption of heavy metal on adsorbents was found to increase on decreasing initial concentration, the sorption capacity strongly increased with pH in the range 3-4. The results showed that the removal of heavy metals, such as Fe +3 and Cu +2 from aqueous solution was efficient using peanut hulls as bioadsorbent. The adsorption percentage of Fe +3 and Cu +2 ions by peanut hulls were very high. The Langmuir isotherm model was the best to describe the experimental data. The maximum sorption capacity was found to be 79.28 and 96.58 mg/g for Fe +3 and Cu +2 , respectively. Over all, the present findings suggest that peanut hulls are friendly environmental bioadsorbent, efficient and low cost biosorbent which represents an excellent potential for Fe +3 and Cu +2 removals from aqueous solutions.

Penentuan Isoterm dan Kinetika Adsorpsi Ion Besi oleh Sedimen Sebagai Adsorben

“…Berdasarkan penelitian yang telah dilakukan penyerapan maksimum terjadi pada konsentrasi ion besi 30 ppm dengan kapasitas adsorpsi sebesar 1,45 mg/g.Hal ini disebabkan jumlah sisi aktif meningkat seiring dengan kenaikan konsentrasi sehingga semakin banyak ion besi yang terserap pada permukaan adsorben (Yan et al, 2017). Jumlah logam yang terserap pada permukaan adsorben bergantung pada ketersediaan sisi aktif untuk pengikatan logam tersebut (Awad, 2017). Faktor lain yang juga mempengaruhi kapasitas adsorpsi adalah ketersediaan solute, interaksi elektrostatik, dan interferensi pada sisi ikatan (Ayuba et al, 2020;Şölener et al, 2008).…”