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Comparison study of COD adsorption on bentonite-based nanocomposite materials in landfill leachate treatment: Characterization, Isotherms, Kinetics and Regeneration

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Title Comparison study of COD adsorption on bentonite-based nanocomposite materials in landfill leachate treatment: Characterization, Isotherms, Kinetics and Regeneration
 
Creator Matin, Hajjizadeh
Zahra, Goodarzvand Chegini
Mohammad, Mehralian
Maryam, Khashij
 
Subject Bentonite-based nanocomposite
COD
Leachate
Regeneration
 
Description 370-378
The COD removal from landfill leachate using bentonite-based nanocomposites prepared using different modifiers has
been investigated. Different techniques including FE-SEM, XRD, FTIR, TGA and Zeta potential have been utilized for
characterization of nanocomposites (NCs). The independent variables includingNCs dose, pH and contact time are studied
for COD removal efficiency. The optimal values are obtained to be a NCs dose of 40 g/L, pH of 3.00, and a contact time of
20 min for maximized COD removal efficiencies of 67.90, 71.30 and 52.00% using Arg/CTS-BEN, H/CTS-BEN and CTSBEN
NCs, respectively. Kinetics studies fitted well with the pseudo-second order model with rate constants of 25.64, 28.65
and 25.00 mg/g by H/CTS-BEN, Arg/CTS-BEN and CTS-BEN NCs, respectively. The adsorption of the COD is well
described by Langmuir equations (R2 0.99). Results show that the synthesized NCs is promising and efficient in purifying
landfill leachate.
 
Date 2023-05-04T11:20:19Z
2023-05-04T11:20:19Z
2023-05
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/61845
https://doi.org/10.56042/ijct.v30i3.68031
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.30(3) [May 2023]