Removal of Lead Metal Ion from Paint Industries Wastewater by Mango and Avocado Seed Waste
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Date
2024-02
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Addis Ababa University
Abstract
In this study, the effectivity of Mango and Avocado Seed Waste as an adsorbent an inexperienced science in the removal of lead metal ion from paint industry wastewater is analyzed. The adsorbent was once characterized the use of physico-chemical residences such as moisture content, ash content, volatile matter and iodine number. The surface morphology of mango and avocado seed adsorbent was once characterised with the aid of SEM, FTIR and BET. Experimental consequences confirmed that mango and avocado seed adsorbent may want to operate successfully inan extensive vary ofexperimentalconditions.Thewastewatersamples havebeen physicochemically characterized earlierthan andafter remedy inaccordance to well-known system the usage of mango and avocado seed adsorbent. Batch adsorption experiments have been performed to consider the impact of contact time, pH and adsorbent dose of adsorbate had been studied, and the adsorption isotherms and kinetics of on Pb (II) elimination have been determined. To set up optimal adsorption conditions, Design Expert version 13 Software was once used. To decide the ultimate setting, a central composite design under response surface methodology to be used. The most elimination effectivity of Pb2+ions through mango and avocado seed adsorbent used to be got most advantageous pH 5.5, foremost adsorbent dose of 1.25g, and the most advantageous contact time of 120 min; in these highest quality stipulations the elimination effectivity was once 99.5%. The effects have been additionally verified that the adsorption method follows Langmuir isotherm model with a higher sorption fit and supported for the monolayer adsorption of Pb+2ions on mango and avocado seed adsorbent. The kinetic model of this learn about indicates a pseudo-second order kinetic model with top correlation coefficient. Based on the outcomes obtained, the mango and avocado seed adsorbent produced from Mango and Avocado Seed waste has a suitable functionality in elimination of the lead metal ions from the Paint industry wastewater.
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Paint wastewater, Mango and Avocado Seed Adsorbent, Lead metal ion, response surface methodology, optimal conditions