Synergistic adsorption of As(III) in a continuous column packed with oxidized biochar: Experimental & modeling studies

Vivek Jaiswal

doi:10.1016/j.biombioe.2026.109536

Synergistic adsorption of As(III) in a continuous column packed with oxidized biochar: Experimental & modeling studies

2026-05-09

0

PRE

AI

V

Vivek Jaiswal

A

Arijit Dutta Gupta

R

Rajneesh Kumar

G

Gaurav Jaiswal

A

Anjali Mishra

R

Rohit Kushwaha

A

Abhishek Anand

A

Anshuman Mishra

R

Ram Sharan Singh *

DOI：10.1016/j.biombioe.2026.109536

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Abstract

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• KMnO4-modified coconut biochar was used for As(III) removal. • Maximum As(III) removal efficiency of 88.75% was obtained. • Thomas model best described the column breakthrough (R2 > 0.95). • Adsorption occurred via synergism between surface complexation and redox reaction. • External film diffusion dominated the column dynamics.

Keywords:

As(III) removal

modified biochar

adsorption mechanism

column dynamics

Thomas model

Synergistic adsorption of As(III) in a continuous column packed with oxidized biochar: Experimental & modeling studies

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