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

All-Russian research-to-practice conference "Ecology and safety in the technosphere: current problems and solutions"

工业技术（总论）

Krasnova, T.A.^1 ; Gorelkina, A.K.^1 ; Timoschuk, I.V.^1 ; Gora, N.V.^1 ; Kirsanov, M.P.^1

Kemerovo State University, Stroitelei Blvd., 47, Kemerovo

650056, Russia^1

关键词: Adsorption columns;    Adsorption kinetics;    Adsorption process;    Engineering calculation;    External mass transfer;    Granule structure;    Limiting stage;    Sorption process;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/224/1/012035/pdf
DOI  :  10.1088/1755-1315/224/1/012035

学科分类：工业工程学

来源: IOP

【 摘 要 】

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.