Application of response surface methodology to optimize lead(Ii) ion adsorption by activated carbon fabricated from de oiled soya
Adsorption; Adsorption capacity; Central composite design; De-oiled soya; Response surface methodology
Lead(II) ion a heavy metal is known for its toxicity. An initiative has been taken in this study, to adsorb toxic lead(II) ion using activated carbon made of de oiled soya, by an aqueous solution through batch adsorption methodology. Adsorption process variables such as adsorbent dose, contact time, solution pH, and lead(II) ion concentration were optimized by central composite design (CCD). To find the interaction between process variables, response surface plots were utilized using response surface methodology. Design-Expert software version 7 was resorted to in this experiment. It was observed that the components from the analysis of variance of the CCD revealed that the selective process independent variables had significant control over adsorption capacity. Desirability function was used to appraise the factors and response in adsorption experiments to find an optimum point where the preferred adsorption could be obtained. Adsorption process with the application of activated carbon developed from de-oiled soya meritoriously removed lead(II) ion with an optimum adsorption capacity of 26.279 mg/g for an initial concentration of lead(II) at 60 mg/L. 2021 Desalination Publications. All rights reserved.
Desalination and Water Treatment, Vol-226, pp. 242-250.
https://doi.org/10.5004/dwt.2021.27240 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85110310388&doi=10.5004%2fdwt.2021.27240&partnerID=40&md5=94fd398aa2787e9e5c25d3a5ef5e9959
Sujatha S., K. Ramakrishnan College of Technology, Tiruchirapalli, Tamilnadu, India; Sivarethinamohan R., Christ (Deemed to be University), Bangalore, Karnataka, India