THE KINETICS OF SORPTION OF CATIONIC DYES MODIFIED BARK CONIFEROUS TREE SPECIES OF SIBERIA
Abstract
The mechanism of sorption kinetic of methylene blue cations from an aqueous solution by the modified bark of Siberian larch (Larix sibirica L.), Scotch pine (Pinus sylvestris L.) and Siberian fir (Abies sibirica Ledeb.) was studied. Adsorption equilibrium in the distribution of the dye cations between the solution and the sorbent is reached in 8 hours after the beginning of sorption. Application to experimental curves of the equations of diffusive and chemical kinetics allowed establishing the following. Sorption process of interaction of cations of dye with functional groups of the modified bark includes three consecutive stages of a mass transfer of sorbate on preparations: diffusion of molecules of dye from solution volume through an external diffusive layer to a surface of particles of the modified bark (the external mass transfer), diffusion of molecules of dye in particles of the modified bark to the active centers (an internal mass transfer) and ion-exchange process. The sorption rate was limited by both diffusion processes and the stage of interaction of cations with functional groups of sorbents. From the point of view of kinetics influence of a ratio «adsorbent mass:liquid volume» on extraction of cations methylene blue of water solution is investigated.
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Palma G., Freer J., Baeza J. Removal of metal ions by modified Pinus radiata bark and tannins from water solution // Water Research. 2003. Vol. 37, N20. Pp. 4974–4980.
Семенович А.В., Лоскутов С.Р. Адсорбция катионных красителей модифицированной корой хвойных древес-ных пород // Химия растительного сырья. 2004. №3. С. 121–125.
ГОСТ 4453-74. Уголь активный осветляющий, древесный, порошкообразный. Технические условия. М., 1976. 10 c.
Лакиза Н.В. Равновесие и кинетика процессов разделения и концентрирования ионов переходных металлов кар-боксиэтилированными полисилоксанами : автореф. дис. … канд. хим. наук. Екатеринбург, 2007. 24 с.
Abd El-Latif M.M., Ibrahim A.M., El-Kady M.F. Adsorption Equilibrium, kinetics and thermodynamics of methylene blue from aqueous solutions using biopolymer oak sawdust composite // Journal of American Science. 2010. Vol. 6, N6. Pp. 267–283.
Argun M.E., Dursun S. A new approach to modification of natural adsorbent for heavy metal adsorption // Bioresource Technology. 2008. Vol. 99, N7. Pp. 2516–2527.
Waranusantigul P., Pokethitiyook P., Kruatrachue M., Upatham E.S. Kinetics of basic dye (methylene blue) biosorption by giant duckweed (Spirodela polyrrhiza) // Environmental Pollution. 2003. Vol. 125. Pp. 385–392.
Mohan D., Pittman C.U., Bricka J.M., Smith F., Yancey B., Mohammad J., Steele P.H., Alexandre-Franco M.F., Gómez-Serrano V., Gong H. Sorption of arsenic, cadmium and lead by chars produced from fast pyrolysis of wood and bark during bio-oil production // Journal of Colloid and Interface Science. 2007. Vol. 310, N1. Pp. 57–73.
Ünlü N., Ersoz M. Adsorption characteristics of heavy metal ions onto a low cost biopolymeric sorbent from aqueous solutions // Journal of Hazardous Materials. 2006. Vol. 136, N2. Pp. 272–280.
Ho Y.-S., Ng J.C.Y., McKay G.M. Kinetics of pollutant sorption by biosorbents: review // Separation Purification Methods. 2000. Vol. 29, N2. Pp. 189–232.
Lazaridis N.K., Karapantsios D., Georgantas D. Kinetic analysis for the removal of a reactive dye from aqueous solution onto hydrotalcite by adsorption // Water Research. 2003. Vol. 37. Pp. 3023–3033.
Ponnusami V., Vikram S., Srivastava S.N. Guava (Psidium guajava) leaf powder: Novel adsorbent for removal of methylene blue from aqueous solution // Journal of Hazardous Materials. 2008. Vol. 152, N1. Pp. 276–286.
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