The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter

For non-ionic compounds, the preliminary role in the sorption process is played by soil organic matter (SOM). However, it is necessary to determine the relative contribution of soil minerals, in particular, soil clay minerals and SOM constituents, to improve prediction of the sorption process. Here,...

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Autor principal:	Ahanga,Ahmad G
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2012
Materias:	sorption diuron phenanthrene clay minerals
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000400015
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spelling	oai:scielo:S0718-951620120004000152013-04-02The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matterAhanga,Ahmad G sorption diuron phenanthrene clay minerals For non-ionic compounds, the preliminary role in the sorption process is played by soil organic matter (SOM). However, it is necessary to determine the relative contribution of soil minerals, in particular, soil clay minerals and SOM constituents, to improve prediction of the sorption process. Here, the results show that sorption capacity of SOM can be affected by mineral-SOM interaction. The organic carbon-normalized sorption coefficient (Koc) after hydrofluoric acid (HF) treatment increased an average of 124% and 98% for A11 horizons and 185% and 162% for A12 horizons for diuron and phenanthrene, respectively. We propose that the increased Koc values in the A12 horizons are due to a higher percentage of clay in A12 horizons as well as a loose connection of SOM with clay minerals in A11 horizons. We suggest that the mineral components of soil contribute greatly to sorption of even non-ionic compounds with alteration of the sorption properties of SOM, which need to be considered in determining the fate and availability of non-ionic compounds in the soil environment.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.12 n.4 20122012-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000400015en10.4067/S0718-95162012005000035
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	sorption diuron phenanthrene clay minerals
spellingShingle	sorption diuron phenanthrene clay minerals Ahanga,Ahmad G The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
description	For non-ionic compounds, the preliminary role in the sorption process is played by soil organic matter (SOM). However, it is necessary to determine the relative contribution of soil minerals, in particular, soil clay minerals and SOM constituents, to improve prediction of the sorption process. Here, the results show that sorption capacity of SOM can be affected by mineral-SOM interaction. The organic carbon-normalized sorption coefficient (Koc) after hydrofluoric acid (HF) treatment increased an average of 124% and 98% for A11 horizons and 185% and 162% for A12 horizons for diuron and phenanthrene, respectively. We propose that the increased Koc values in the A12 horizons are due to a higher percentage of clay in A12 horizons as well as a loose connection of SOM with clay minerals in A11 horizons. We suggest that the mineral components of soil contribute greatly to sorption of even non-ionic compounds with alteration of the sorption properties of SOM, which need to be considered in determining the fate and availability of non-ionic compounds in the soil environment.
author	Ahanga,Ahmad G
author_facet	Ahanga,Ahmad G
author_sort	Ahanga,Ahmad G
title	The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
title_short	The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
title_full	The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
title_fullStr	The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
title_full_unstemmed	The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
title_sort	effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162012000400015
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The effect of minerals changing the sorption on non-ionic compound sorption by capacity of soil organic matter

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