Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

Kinetics and equilibrium studies of Chromium bio-adsorption on activated carbon derived from Cucurbita peels

Author : Soibam Sangeeta 1 Potsangbam Albino Kumar 2

Date of Publication :9th October 2021

Abstract: This study investigates the use of chemically activated Pumpkin (Cucurbita) peels impregnated with H3PO4 (APP) for toxic chromium removal from aqueous solutions. The adsorption processes were carried out through batch method at pH ranges from 2-10 and adsorbent APP dosage of 1-6 g/L. The optimum operating conditions were achieved at pH 2 and time of contact 120 min attaining the highest metal intake at 3g of the adsorbent per 1L of the aqueous solution having total chromium removal of 89%. The adsorption kinetics follows pseudo 2nd order model with a Chi square value of 0.132. Both the Freundlich and Langmuir were applied to describe the experimental data and it fitted well with both the isotherms with a correlation coefficients of 0.97 and 0.99 and a Chi square (2) values of 0.001 and 0.01 respectively.

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