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Cereal based traditional beverage of tella residue (attela) as a green organic pollutant sorbent for methylene blue dye removal: Equilibrium, kinetics and thermodynamic studies

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Title Cereal based traditional beverage of tella residue (attela) as a green organic pollutant sorbent for methylene blue dye removal: Equilibrium, kinetics and thermodynamic studies
 
Creator Abate, Gietu Yirga
Nguyen, Duong Tuan Anh
Alene, Adugna Nigatu
Kassie, Desalegn Adisu
Addiss, Yetayesh Abebaw
Mintesinot, Smegnew Moges
 
Subject Bio-adsorbent
Chemical activation
Methylene blue dye
Operational parameter
Tella residue
 
Description 151-164
Dyes are one the foremost hazardous pollutants that affects bio life including the flora and fauna and removing of those
pollutants from contaminated environment are remarkable activities within the scientific community. In this respect, the current
study is focused on preparation of physiochemical activated cereals based tella residue bio adsorbent for basic blue dye (MB)
removal from aqueous environment. Different analytical methods have been utilized to assess the thermal stability, surface area,
surface morphology, pore size, pore volume, surface functional group, and a few proximate analyses of the prepared bio
adsorbents. The SEM and BET results of the adsorbents reveals physiochemical activation process assists for the formation of
visible pores, cracks, irregular shape, and better surface area (51.32 m2/g for RTR and 565m2/g for ATR) respectively. The
removal efficiencies of MB by RTR and ATR in an exceedingly batch experiment were 88.4s and 97.2 % at situation of pH (8);
adsorbent dosage (0.8 for RTR and 0.6 for ATR), agitation speed (300 rpm), dye concentration (10 mg/L), temperature (298oK)
and contact time (100 minute) respectively. The kinetics and equilibrium result of dye adsorption process well described by
Pseudo 2nd order kinetic and Langmuir isotherm model respectively. The thermodynamic finding result shows the spontaneous
and endothermic nature of the sorption process. The probable adsorption mechanism of MB dye on the prepared bio adsorbents
surface may be assigned mainly through chemisorption. The results of this study show, the current adsorbents promise an
alternate green rout for treatment dye contaminated wastewaters.
 
Date 2023-03-17T10:24:48Z
2023-03-17T10:24:48Z
2023-03
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscpr.res.in/handle/123456789/61564
https://doi.org/10.56042/ijct.v30i2.64532
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJCT Vol.30(2) [March 2023]