Detail publikačního výsledku
Transport of Organic Compounds Through Porous Systems Containing Humic Acids
SMILEK, J.; SEDLÁČEK, P.; LAŠTŮVKOVÁ, M.; KALINA, M.; KLUČÁKOVÁ, M.
Original Title
Transport of Organic Compounds Through Porous Systems Containing Humic Acids
English Title
Transport of Organic Compounds Through Porous Systems Containing Humic Acids
Type
WoS Article
Original Abstract
Soil pollution by the presence of different contaminants (e.g. heavy metal ions or pesticides) is one of the biggest problems worldwide. The positive affinity of natural humic acids towards these contaminants might contribute to the soil and ground water protection; therefore it is necessary to study the reactivity and barrier properties of humic acids. An original reactivity-mapping tool based on diffusion techniques designed to study the reactivity and barrier properties of polyelectrolytes was developed and tested on humic acids. The results of diffusion experiments demonstrate that the electrostatic interactions between humic acids functioning as a polyelectrolyte interpenetrated in a supporting hydrogel matrix (agarose) and cationic dye (methylene blue) as a model solute have a crucial impact on the rate of diffusion processes and on the barrier properties of hydrogels. The intensity of interactions was evaluated by fundamental diffusion parameters (effective diffusion coefficients and breakthrough time). The impact of modification of humic acids was also studied by means of diffusion experiments conducted on two types of standard humic acids (Leonardite 1S104H) and humic acids with selectively methylated carboxylic groups.
English abstract
Soil pollution by the presence of different contaminants (e.g. heavy metal ions or pesticides) is one of the biggest problems worldwide. The positive affinity of natural humic acids towards these contaminants might contribute to the soil and ground water protection; therefore it is necessary to study the reactivity and barrier properties of humic acids. An original reactivity-mapping tool based on diffusion techniques designed to study the reactivity and barrier properties of polyelectrolytes was developed and tested on humic acids. The results of diffusion experiments demonstrate that the electrostatic interactions between humic acids functioning as a polyelectrolyte interpenetrated in a supporting hydrogel matrix (agarose) and cationic dye (methylene blue) as a model solute have a crucial impact on the rate of diffusion processes and on the barrier properties of hydrogels. The intensity of interactions was evaluated by fundamental diffusion parameters (effective diffusion coefficients and breakthrough time). The impact of modification of humic acids was also studied by means of diffusion experiments conducted on two types of standard humic acids (Leonardite 1S104H) and humic acids with selectively methylated carboxylic groups.
Keywords
Humic acids; Reactivity-mapping tool; Diffusion; Hydrogel; Transport properties
Key words in English
Humic acids; Reactivity-mapping tool; Diffusion; Hydrogel; Transport properties
Authors
SMILEK, J.; SEDLÁČEK, P.; LAŠTŮVKOVÁ, M.; KALINA, M.; KLUČÁKOVÁ, M.
RIV year
2018
Released
01.03.2017
Publisher
SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Location
NY, USA
ISBN
0007-4861
Periodical
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume
3
Number
98
State
United States of America
Pages from
373
Pages to
377
Pages count
5
Full text in the Digital Library
BibTex
@article{BUT136511,
author="Jiří {Smilek} and Petr {Sedláček} and Marcela {Smilková} and Michal {Kalina} and Martina {Klučáková}",
title="Transport of Organic Compounds Through Porous Systems Containing Humic Acids",
journal="BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY",
year="2017",
volume="3",
number="98",
pages="373--377",
doi="10.1007/s00128-016-1926-0",
issn="0007-4861"
}