ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS

ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS

The mobility and persistency of cadmium in the soil are determined by the intensity of adsorption by colloids. The evaluation of the free energy of cadmium adsorption by the soil is a measurement of the reaction strength. This study was carried out to evaluate the free energy of cadmium adsorption r...

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Main Authors: LUCIA HELENA GARÓFALO CHAVES, RAMARA SENA DE SOUZA, IÊDE DE BRITO CHAVE, GILVANISE ALVES TITO
Format: Article
Language:English
Published: Universidade Federal Rural do Semi-Árido 2010-01-01
Series:Revista Caatinga
Online Access:http://www.redalyc.org/articulo.oa?id=237117582013
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spelling doaj-b6a2de0354ba464ba2be2c43cb23ec462020-11-25T02:30:40ZengUniversidade Federal Rural do Semi-ÁridoRevista Caatinga0100-316X1983-21252010-01-012318489ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOSLUCIA HELENA GARÓFALO CHAVESRAMARA SENA DE SOUZAIÊDE DE BRITO CHAVEGILVANISE ALVES TITOThe mobility and persistency of cadmium in the soil are determined by the intensity of adsorption by colloids. The evaluation of the free energy of cadmium adsorption by the soil is a measurement of the reaction strength. This study was carried out to evaluate the free energy of cadmium adsorption reaction in Luvisol and Cambisol samples after addition of different cadmium level. Cadmium adsorption was considered spontaneous, since free energy was negative. Free energy values decreased with increasing cadmium concentration and they were higher in samples with higher organic matter levels. Luvisol showed higher values of free energy of adsorption.http://www.redalyc.org/articulo.oa?id=237117582013
collection DOAJ
language English
format Article
sources DOAJ
author LUCIA HELENA GARÓFALO CHAVES
RAMARA SENA DE SOUZA
IÊDE DE BRITO CHAVE
GILVANISE ALVES TITO
spellingShingle LUCIA HELENA GARÓFALO CHAVES
RAMARA SENA DE SOUZA
IÊDE DE BRITO CHAVE
GILVANISE ALVES TITO
ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS
Revista Caatinga
author_facet LUCIA HELENA GARÓFALO CHAVES
RAMARA SENA DE SOUZA
IÊDE DE BRITO CHAVE
GILVANISE ALVES TITO
author_sort LUCIA HELENA GARÓFALO CHAVES
title ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS
title_short ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS
title_full ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS
title_fullStr ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS
title_full_unstemmed ENERGIA LIVRE DA REAÇÃO DE ADSORÇÃO DO CÁDMIO EM LUVISSOLOS E CAMBISSOLOS
title_sort energia livre da reação de adsorção do cádmio em luvissolos e cambissolos
publisher Universidade Federal Rural do Semi-Árido
series Revista Caatinga
issn 0100-316X
1983-2125
publishDate 2010-01-01
description The mobility and persistency of cadmium in the soil are determined by the intensity of adsorption by colloids. The evaluation of the free energy of cadmium adsorption by the soil is a measurement of the reaction strength. This study was carried out to evaluate the free energy of cadmium adsorption reaction in Luvisol and Cambisol samples after addition of different cadmium level. Cadmium adsorption was considered spontaneous, since free energy was negative. Free energy values decreased with increasing cadmium concentration and they were higher in samples with higher organic matter levels. Luvisol showed higher values of free energy of adsorption.
url http://www.redalyc.org/articulo.oa?id=237117582013
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AT ramarasenadesouza energialivredareacaodeadsorcaodocadmioemluvissolosecambissolos
AT iededebritochave energialivredareacaodeadsorcaodocadmioemluvissolosecambissolos
AT gilvanisealvestito energialivredareacaodeadsorcaodocadmioemluvissolosecambissolos
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