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Influence of surface chemistry and structure of activated carbon on adsorption of fulvic acids from water solution.
Water Sci Technol. 2009; 60(2):441-7.WS

Abstract

The adsorption of fulvic acids (FA) from aqueous solutions on activated carbon (AC) with different characteristics of surface chemical state has been investigated. To characterize the adsorbability of FA with complex fractional composition, a method of estimation of modified Freundlich equation constants was employed, and "conventional component" was used to evaluate the change in Gibbs free adsorption energy. It has been shown that change in activated carbon surface energy in-homogeneity due to oxidation leads mainly to a decrease in the adsorption energy of fulvic acids and to an increase of the concentration range of the conventional portion of the low adsorbable fraction. Decrease in the adsorption energy of organic substrate may result in higher degree of spontaneous bioregeneration of activated carbon and hence in its longer life in the processes of FA solutions filtration.

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Authors+Show Affiliations

Savchyna LA
Institute of Colloid Chemistry and Chemistry of Water, Ukrainian National Academy of Sciences, 42 Vernadsky Avenue, Kiev 03680, Ukraine.
Kozyatnyk IP
No affiliation info available
Poliakova TV
No affiliation info available
Klymenko NA
No affiliation info available

MeSH

AdsorptionBenzopyransCarbonOxygenSoftwareSoilSurface PropertiesThermodynamicsWaterWater Pollutants, ChemicalWater PurificationWater Supply

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19633386

Citation

Savchyna, L A., et al. "Influence of Surface Chemistry and Structure of Activated Carbon On Adsorption of Fulvic Acids From Water Solution." Water Science and Technology : a Journal of the International Association On Water Pollution Research, vol. 60, no. 2, 2009, pp. 441-7.
Savchyna LA, Kozyatnyk IP, Poliakova TV, et al. Influence of surface chemistry and structure of activated carbon on adsorption of fulvic acids from water solution. Water Sci Technol. 2009;60(2):441-7.
Savchyna, L. A., Kozyatnyk, I. P., Poliakova, T. V., & Klymenko, N. A. (2009). Influence of surface chemistry and structure of activated carbon on adsorption of fulvic acids from water solution. Water Science and Technology : a Journal of the International Association On Water Pollution Research, 60(2), 441-7. https://doi.org/10.2166/wst.2009.344
Savchyna LA, et al. Influence of Surface Chemistry and Structure of Activated Carbon On Adsorption of Fulvic Acids From Water Solution. Water Sci Technol. 2009;60(2):441-7. PubMed PMID: 19633386.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of surface chemistry and structure of activated carbon on adsorption of fulvic acids from water solution. AU - Savchyna,L A, AU - Kozyatnyk,I P, AU - Poliakova,T V, AU - Klymenko,N A, PY - 2009/7/28/entrez PY - 2009/7/28/pubmed PY - 2009/10/9/medline SP - 441 EP - 7 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 60 IS - 2 N2 - The adsorption of fulvic acids (FA) from aqueous solutions on activated carbon (AC) with different characteristics of surface chemical state has been investigated. To characterize the adsorbability of FA with complex fractional composition, a method of estimation of modified Freundlich equation constants was employed, and "conventional component" was used to evaluate the change in Gibbs free adsorption energy. It has been shown that change in activated carbon surface energy in-homogeneity due to oxidation leads mainly to a decrease in the adsorption energy of fulvic acids and to an increase of the concentration range of the conventional portion of the low adsorbable fraction. Decrease in the adsorption energy of organic substrate may result in higher degree of spontaneous bioregeneration of activated carbon and hence in its longer life in the processes of FA solutions filtration. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/19633386/Influence_of_surface_chemistry_and_structure_of_activated_carbon_on_adsorption_of_fulvic_acids_from_water_solution_ L2 - https://iwaponline.com/wst/article-lookup/doi/10.2166/wst.2009.344 DB - PRIME DP - Unbound Medicine ER -