Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3118 |
Resumo: | The aim of this research was to evaluate the amount of some metals and nutrients in the sludge of the sewage treatment stations (STS) of Maringá. During the year samples of sludge were collected at STS-2 and STS-3. Previously dried and ground the sludge samples at constant weights were digested by aqua regia. The reading of metal concentrations was made by atomic absorption spectrometry. Nitrogen and carbon were determined by the respective classical methods. Concentration results in total averages were the following, in %: N, 3.04; C, 29.3; Al, 2.93; in mg.g-1: Ca, 9.31; Mg, 1.93; K, 0.900; Cu, 0.851; Zn, 1.66; Mn, 1.13; Fe, 83.5; in µg.g-1: Pb, 96.6; Cr, 88.9; Cd, 1.42; in ng.g-1: Hg, 6.7 respectively. The STS-2 presented the highest levels of macronutrients and a C:N ratio close to 10:1. With regard to heavy metals, copper was the only one that exceeded the average total level found in literature. For total sludge analyzed, copper is the most restricting element for sludge application to agricultural soils. |
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Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, BrazilAvaliação do teor de alguns metais e de nutrientes de lodos de estações de tratamento de esgoto de Maringálodo de esgotometais pesadosnutrientespoluição ambiental1.06.00.00-0 QuímicaThe aim of this research was to evaluate the amount of some metals and nutrients in the sludge of the sewage treatment stations (STS) of Maringá. During the year samples of sludge were collected at STS-2 and STS-3. Previously dried and ground the sludge samples at constant weights were digested by aqua regia. The reading of metal concentrations was made by atomic absorption spectrometry. Nitrogen and carbon were determined by the respective classical methods. Concentration results in total averages were the following, in %: N, 3.04; C, 29.3; Al, 2.93; in mg.g-1: Ca, 9.31; Mg, 1.93; K, 0.900; Cu, 0.851; Zn, 1.66; Mn, 1.13; Fe, 83.5; in µg.g-1: Pb, 96.6; Cr, 88.9; Cd, 1.42; in ng.g-1: Hg, 6.7 respectively. The STS-2 presented the highest levels of macronutrients and a C:N ratio close to 10:1. With regard to heavy metals, copper was the only one that exceeded the average total level found in literature. For total sludge analyzed, copper is the most restricting element for sludge application to agricultural soils.Este trabalho teve como objetivo avaliar o teor de alguns metais e de nutrientes dos lodos de estações de tratamento de esgotos (ETE) de Maringá. Ao longo de um ano, foram feitas coletas de amostras de lodo junto à ETE-2 e ETE-3. As amostras de lodo preparadas foram digeridas com água régia. As leituras das concentrações dos metais foram feitas pelo método de espectrometria de absorção atômica. O nitrogênio e o carbono foram determinados pelos respectivos métodos clássicos. Os resultados das concentrações médias globais foram os seguintes, em %: N, 3,04; C, 29,3; Al, 2,93; em mg.g-1: Ca, 9,31; Mg, 1,93; K, 0,900; Cu, 0,851; Zn, 1,66; Mn, 1,13; Fe, 83,5; em µg.g-1: Pb, 96,6; Cr, 88,9; Cd, 1,42; em ng.g-1: Hg, 6,7, respectivamente. A ETE-2 apresentou os maiores teores de macronutrientes e uma relação C:N próxima de 10:1. Em termos de metais pesados, o cobre foi o único que excedeu o teor global médio da literatura. Ele também é, para os lodos analisados, o elemento mais limitante da aplicação dos mesmos em solos agricultáveis.Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/311810.4025/actascitechnol.v20i0.3118Acta Scientiarum. Technology; Vol 20 (1998); 419-425Acta Scientiarum. Technology; v. 20 (1998); 419-4251806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3118/2317Almeida, Vitor de CinqueLenzi, ErvimFavero, Luzia Otília BortottiLuchese, Eduardo Bernardiinfo:eu-repo/semantics/openAccess2024-05-17T13:02:57Zoai:periodicos.uem.br/ojs:article/3118Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:57Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil Avaliação do teor de alguns metais e de nutrientes de lodos de estações de tratamento de esgoto de Maringá |
title |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil |
spellingShingle |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil Almeida, Vitor de Cinque lodo de esgoto metais pesados nutrientes poluição ambiental 1.06.00.00-0 Química |
title_short |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil |
title_full |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil |
title_fullStr |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil |
title_full_unstemmed |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil |
title_sort |
Evaluation of the chemical aspects of sludge in sewage treatment stations of Maringá, state of Paraná, Brazil |
author |
Almeida, Vitor de Cinque |
author_facet |
Almeida, Vitor de Cinque Lenzi, Ervim Favero, Luzia Otília Bortotti Luchese, Eduardo Bernardi |
author_role |
author |
author2 |
Lenzi, Ervim Favero, Luzia Otília Bortotti Luchese, Eduardo Bernardi |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Almeida, Vitor de Cinque Lenzi, Ervim Favero, Luzia Otília Bortotti Luchese, Eduardo Bernardi |
dc.subject.por.fl_str_mv |
lodo de esgoto metais pesados nutrientes poluição ambiental 1.06.00.00-0 Química |
topic |
lodo de esgoto metais pesados nutrientes poluição ambiental 1.06.00.00-0 Química |
description |
The aim of this research was to evaluate the amount of some metals and nutrients in the sludge of the sewage treatment stations (STS) of Maringá. During the year samples of sludge were collected at STS-2 and STS-3. Previously dried and ground the sludge samples at constant weights were digested by aqua regia. The reading of metal concentrations was made by atomic absorption spectrometry. Nitrogen and carbon were determined by the respective classical methods. Concentration results in total averages were the following, in %: N, 3.04; C, 29.3; Al, 2.93; in mg.g-1: Ca, 9.31; Mg, 1.93; K, 0.900; Cu, 0.851; Zn, 1.66; Mn, 1.13; Fe, 83.5; in µg.g-1: Pb, 96.6; Cr, 88.9; Cd, 1.42; in ng.g-1: Hg, 6.7 respectively. The STS-2 presented the highest levels of macronutrients and a C:N ratio close to 10:1. With regard to heavy metals, copper was the only one that exceeded the average total level found in literature. For total sludge analyzed, copper is the most restricting element for sludge application to agricultural soils. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-05-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3118 10.4025/actascitechnol.v20i0.3118 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3118 |
identifier_str_mv |
10.4025/actascitechnol.v20i0.3118 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3118/2317 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 20 (1998); 419-425 Acta Scientiarum. Technology; v. 20 (1998); 419-425 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
_version_ |
1799315333078581248 |