Adsorption of Zn(II) from Aqueous Solution on Mango Leaves Powder

Abstract

Since ancient times, it’s a common practice in India to use mango tree leaves when there is a large crowd of people to ensure free flow of oxygen, for their ability to absorb excess carbon dioxide. Owing to its purifying nature, it has been studied for waste water treatment also. In the present study, potential of mango tree leaves have been investigated in removing zinc ions from aqueous solution. Batch adsorption studies were conducted to determine the optimum values of solution pH, zinc ion concentration in the solution, adsorbent dose and contact time at 20oC for maximum removal zinc ions from the synthetic solutions. It was observed that Zinc ion removal increased with increase in adsorbent dose and time. Optimum pH was 4. Equilibrium data was well described by the Langmuir, Freundlichand Temkin adsorption isotherm models.

Utilizing Modified Maize Cobs as an Agricultural Waste Adsorbent for Removing Zinc (II) and Chromium (VI) Ions from Wastewater

“…This is consistent with the ndings of Yu et al (2003) that the equilibrium concentration is affected by both the initial metal concentration and the adsorption rate of the metal ion. The availability of sites for adsorption is limited at high initial metal ion concentrations (Kaushal et al, 2016). Additionally, a high initial metal ion concentration creates a strong driving force that overcomes the resistance of ions in the mixture to bulk exchange (Babel andKurniawan, 2003, Ong et al, 2004).…”