Determination of Trichloroethylene Adsorption Kinetic Parameters for Engineering Calculations of Industrial Adsorption Columns

We studied the adsorption of trichloroethylene kinetics from aqueous solutions on sorbent agents of various brands. We studied the mechanism of mass transfer during the trichloroethylene adsorption on activated carbons. The kinetic curves were plotted and analysed in g against t axis, which made it...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-01, Vol.224 (1), p.12035
Main Authors: Krasnova, T A, Gorelkina, A K, Timoschuk, I V, Gora, N V, Kirsanov, M P
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Aqueous solutions
Mass transfer
Parameters
Solvents
Sorbents
Trichloroethylene
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Summary:We studied the adsorption of trichloroethylene kinetics from aqueous solutions on sorbent agents of various brands. We studied the mechanism of mass transfer during the trichloroethylene adsorption on activated carbons. The kinetic curves were plotted and analysed in g against t axis, which made it possible to determine the model of the carbon granule structure. It was determined that the limiting stage of the adsorption process in the range of 5-40 minutes, depending on the properties of the activated carbon, is external diffusion. We calculated the coefficients of external mass transfer, their values are rather high which indicates a high rate of the sorption process limited by external mass transfer. We obtained the findings necessary for engineering calculations of the adsorption column parameters.
ISSN:1755-1307
1755-1315
1755-1315
DOI:10.1088/1755-1315/224/1/012035