The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Capítulo de livro |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/978-94-007-5634-2_97 http://hdl.handle.net/11449/227995 |
Resumo: | The northwest region of São Paulo State is a typical agricultural region with crops of sugarcane and oranges predominating, being chromium ions of environmental interest. Studies of the role of aquatic humic substances (AHS) in the transport of chromium ions in aquatic bodies are practically nonexistent. In this context, this work aimed to assess the influence of AHS from an area of sugarcane and orange on the dynamics of chromium ions (Cr+3 and Cr+6) in the environment. AHS were extracted in accordance with the method suggested by the International Humic Substances Society, followed by fractionation into different molecular sizes (<10, 10-30, 30-50, 50-100 and >100 kDa). AHS were characterized by UV/Vis, molecular fluorescence and IR. Complexation capacity (CC) of AHS with ions Cr+3 and Cr+6 was performed employing the system of tangential-flow ultrafiltration with membranes of 1.0 kDa. AHS showed a higher degree of aromaticity and predominance of the humic acids. We can conclude that the fraction F1 (<10 kDa) and F2 (10-30 kDa) showed the higher CC with Cr+3 ion (2.15 mmol Cr+3 g-1 carbon) and Cr+6 ion (4.61 mmol Cr+6 g-1 carbon), respectively. |
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The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environmentAquatic humic substancesComplexationMetalsThe northwest region of São Paulo State is a typical agricultural region with crops of sugarcane and oranges predominating, being chromium ions of environmental interest. Studies of the role of aquatic humic substances (AHS) in the transport of chromium ions in aquatic bodies are practically nonexistent. In this context, this work aimed to assess the influence of AHS from an area of sugarcane and orange on the dynamics of chromium ions (Cr+3 and Cr+6) in the environment. AHS were extracted in accordance with the method suggested by the International Humic Substances Society, followed by fractionation into different molecular sizes (<10, 10-30, 30-50, 50-100 and >100 kDa). AHS were characterized by UV/Vis, molecular fluorescence and IR. Complexation capacity (CC) of AHS with ions Cr+3 and Cr+6 was performed employing the system of tangential-flow ultrafiltration with membranes of 1.0 kDa. AHS showed a higher degree of aromaticity and predominance of the humic acids. We can conclude that the fraction F1 (<10 kDa) and F2 (10-30 kDa) showed the higher CC with Cr+3 ion (2.15 mmol Cr+3 g-1 carbon) and Cr+6 ion (4.61 mmol Cr+6 g-1 carbon), respectively.Instituto de Biociências Letras e Ciências Exatas Department of Chemistry and Environmental Sciences Universidade Estadual Paulista Júlio de Mesquita Filho - São José Do Rio PretoInstituto de Biociências Letras e Ciências Exatas Department of Chemistry and Environmental Sciences Universidade Estadual Paulista Júlio de Mesquita Filho - São José Do Rio PretoUniversidade Estadual Paulista (UNESP)Tadini, A. M. [UNESP]Moreira, A. B. [UNESP]Bisinoti, M. C. [UNESP]2022-04-29T07:26:05Z2022-04-29T07:26:05Z2012-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookPart535-541http://dx.doi.org/10.1007/978-94-007-5634-2_97Functions of Natural Organic Matter in Changing Environment, v. 9789400756342, p. 535-541.http://hdl.handle.net/11449/22799510.1007/978-94-007-5634-2_972-s2.0-84932599410Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengFunctions of Natural Organic Matter in Changing Environmentinfo:eu-repo/semantics/openAccess2022-04-29T07:26:05Zoai:repositorio.unesp.br:11449/227995Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:49:21.490651Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
title |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
spellingShingle |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment Tadini, A. M. [UNESP] Aquatic humic substances Complexation Metals |
title_short |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
title_full |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
title_fullStr |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
title_full_unstemmed |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
title_sort |
The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment |
author |
Tadini, A. M. [UNESP] |
author_facet |
Tadini, A. M. [UNESP] Moreira, A. B. [UNESP] Bisinoti, M. C. [UNESP] |
author_role |
author |
author2 |
Moreira, A. B. [UNESP] Bisinoti, M. C. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Tadini, A. M. [UNESP] Moreira, A. B. [UNESP] Bisinoti, M. C. [UNESP] |
dc.subject.por.fl_str_mv |
Aquatic humic substances Complexation Metals |
topic |
Aquatic humic substances Complexation Metals |
description |
The northwest region of São Paulo State is a typical agricultural region with crops of sugarcane and oranges predominating, being chromium ions of environmental interest. Studies of the role of aquatic humic substances (AHS) in the transport of chromium ions in aquatic bodies are practically nonexistent. In this context, this work aimed to assess the influence of AHS from an area of sugarcane and orange on the dynamics of chromium ions (Cr+3 and Cr+6) in the environment. AHS were extracted in accordance with the method suggested by the International Humic Substances Society, followed by fractionation into different molecular sizes (<10, 10-30, 30-50, 50-100 and >100 kDa). AHS were characterized by UV/Vis, molecular fluorescence and IR. Complexation capacity (CC) of AHS with ions Cr+3 and Cr+6 was performed employing the system of tangential-flow ultrafiltration with membranes of 1.0 kDa. AHS showed a higher degree of aromaticity and predominance of the humic acids. We can conclude that the fraction F1 (<10 kDa) and F2 (10-30 kDa) showed the higher CC with Cr+3 ion (2.15 mmol Cr+3 g-1 carbon) and Cr+6 ion (4.61 mmol Cr+6 g-1 carbon), respectively. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-08-01 2022-04-29T07:26:05Z 2022-04-29T07:26:05Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/bookPart |
format |
bookPart |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/978-94-007-5634-2_97 Functions of Natural Organic Matter in Changing Environment, v. 9789400756342, p. 535-541. http://hdl.handle.net/11449/227995 10.1007/978-94-007-5634-2_97 2-s2.0-84932599410 |
url |
http://dx.doi.org/10.1007/978-94-007-5634-2_97 http://hdl.handle.net/11449/227995 |
identifier_str_mv |
Functions of Natural Organic Matter in Changing Environment, v. 9789400756342, p. 535-541. 10.1007/978-94-007-5634-2_97 2-s2.0-84932599410 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Functions of Natural Organic Matter in Changing Environment |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
535-541 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128863845220352 |