The influence of aquatic humic substances from an area of sugarcane and orange on the dynamics of chromium ions in the environment

Detalhes bibliográficos
Autor(a) principal: Tadini, A. M. [UNESP]
Data de Publicação: 2012
Outros Autores: Moreira, A. B. [UNESP], Bisinoti, M. C. [UNESP]
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.
id UNSP_906c565724d69a2007a8e70fe4f501f1
oai_identifier_str oai:repositorio.unesp.br:11449/227995
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling 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