Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379

Detalhes bibliográficos
Autor(a) principal: Lenzi, Ervim
Data de Publicação: 2011
Outros Autores: Almeida, Vitor de Cinque, Favero, Luzia Otilia Bortotti, Becker, Fernando Juliato
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/8379
Resumo: This work analyzed the treatment of effluent produced by an Atomic Absorption Spectrometer (AAS) containing the heavy metal zinc, utilizing the capacity of Zn2+ to react with hydroxide ion (HO-), forming Zn(OH) 2(ppt). The content was treated theoretically and experimentally. Theoretically, the thermodynamic parameters were assessed and the solubility of Zn(OH) 2(ppt) with pH variation was analyzed mathematically. Experimentally, the study analyzed the behavior of the Zn(OH) 2(ppt) aqueous solution and in natura solution of discarded effluent with the medium pH. The values of zinc concentration in the different situations were measured using AAS, flame modality, with detection limit (DL) 0.030 mg L-1. The results in the different situations of solution and medium pH for the minimum solubility of Zn(OH) 2(ppt), in mg L-1, were: theoretical value = 2.3; experimental value for the Zn(OH) 2(ppt) solution = 0.92; in natural effluent = 0.092, respectively. These values are in compliance with BRAZIL-Conama Resolution number 397/2008.
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spelling Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379Detalhes da utilização do íon hidróxido, HO-, no tratamento de efluentes contaminados com metal pesado zinco - doi: 10.4025/actascitechnol.v33i3.8379effluent treatmentheavy metalzinchydroxidelab effluenttratamento de efluentesmetal pesado zincoíon hidróxidoefluentes de laboratórioQuímicaThis work analyzed the treatment of effluent produced by an Atomic Absorption Spectrometer (AAS) containing the heavy metal zinc, utilizing the capacity of Zn2+ to react with hydroxide ion (HO-), forming Zn(OH) 2(ppt). The content was treated theoretically and experimentally. Theoretically, the thermodynamic parameters were assessed and the solubility of Zn(OH) 2(ppt) with pH variation was analyzed mathematically. Experimentally, the study analyzed the behavior of the Zn(OH) 2(ppt) aqueous solution and in natura solution of discarded effluent with the medium pH. The values of zinc concentration in the different situations were measured using AAS, flame modality, with detection limit (DL) 0.030 mg L-1. The results in the different situations of solution and medium pH for the minimum solubility of Zn(OH) 2(ppt), in mg L-1, were: theoretical value = 2.3; experimental value for the Zn(OH) 2(ppt) solution = 0.92; in natural effluent = 0.092, respectively. These values are in compliance with BRAZIL-Conama Resolution number 397/2008.O estudo abordou o tratamento do efluente gerado num Espectrômetro de Absorção Atômica - EAA, no tocante ao metal pesado zinco, utilizando a propriedade do cátion formar o precipitado Zn(OH)2(ppt). O assunto foi tratado teórica e praticamente. Teoricamente foram levantados parâmetros termodinâmicos e analisada matematicamente a solubilidade do Zn(OH) 2(ppt) com a variação do pH. Experimentalmente foi analisado o comportamento da solução aquosa do Zn(OH) 2(ppt) e da solução in natura do efluente descartado com o pH. As medidas da concentração de zinco nas diversas situações foram realizadas pelo método da EAA, com limite de detecção (LD) de 0,030 mg L-1. Os resultados nas diferentes situações de solução e pH do meio, para a solubilidade mínima do Zn(OH) (ppt), SMínima, em mg L-1, foram: valor teórico = 2,3; valor experimental para solução de Zn(OH) (ppt) = 0,92; valor para solução in natura = 0,092, respectivamente. Estes valores estão de conformidade com BRASIL-Resolução Conama n. 397/2008.Universidade Estadual De Maringá2011-03-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionQuímica ambientalapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/837910.4025/actascitechnol.v33i3.8379Acta Scientiarum. Technology; Vol 33 No 3 (2011); 313-322Acta Scientiarum. Technology; v. 33 n. 3 (2011); 313-3221806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/8379/8379Lenzi, ErvimAlmeida, Vitor de CinqueFavero, Luzia Otilia BortottiBecker, Fernando Juliatoinfo:eu-repo/semantics/openAccess2024-05-17T13:03:13Zoai:periodicos.uem.br/ojs:article/8379Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:03:13Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
Detalhes da utilização do íon hidróxido, HO-, no tratamento de efluentes contaminados com metal pesado zinco - doi: 10.4025/actascitechnol.v33i3.8379
title Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
spellingShingle Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
Lenzi, Ervim
effluent treatment
heavy metal
zinc
hydroxide
lab effluent
tratamento de efluentes
metal pesado zinco
íon hidróxido
efluentes de laboratório
Química
title_short Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
title_full Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
title_fullStr Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
title_full_unstemmed Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
title_sort Details of hydroxide ion utilization in the treatment of contaminated effluents with zinc - doi: 10.4025/actascitechnol.v33i3.8379
author Lenzi, Ervim
author_facet Lenzi, Ervim
Almeida, Vitor de Cinque
Favero, Luzia Otilia Bortotti
Becker, Fernando Juliato
author_role author
author2 Almeida, Vitor de Cinque
Favero, Luzia Otilia Bortotti
Becker, Fernando Juliato
author2_role author
author
author
dc.contributor.author.fl_str_mv Lenzi, Ervim
Almeida, Vitor de Cinque
Favero, Luzia Otilia Bortotti
Becker, Fernando Juliato
dc.subject.por.fl_str_mv effluent treatment
heavy metal
zinc
hydroxide
lab effluent
tratamento de efluentes
metal pesado zinco
íon hidróxido
efluentes de laboratório
Química
topic effluent treatment
heavy metal
zinc
hydroxide
lab effluent
tratamento de efluentes
metal pesado zinco
íon hidróxido
efluentes de laboratório
Química
description This work analyzed the treatment of effluent produced by an Atomic Absorption Spectrometer (AAS) containing the heavy metal zinc, utilizing the capacity of Zn2+ to react with hydroxide ion (HO-), forming Zn(OH) 2(ppt). The content was treated theoretically and experimentally. Theoretically, the thermodynamic parameters were assessed and the solubility of Zn(OH) 2(ppt) with pH variation was analyzed mathematically. Experimentally, the study analyzed the behavior of the Zn(OH) 2(ppt) aqueous solution and in natura solution of discarded effluent with the medium pH. The values of zinc concentration in the different situations were measured using AAS, flame modality, with detection limit (DL) 0.030 mg L-1. The results in the different situations of solution and medium pH for the minimum solubility of Zn(OH) 2(ppt), in mg L-1, were: theoretical value = 2.3; experimental value for the Zn(OH) 2(ppt) solution = 0.92; in natural effluent = 0.092, respectively. These values are in compliance with BRAZIL-Conama Resolution number 397/2008.
publishDate 2011
dc.date.none.fl_str_mv 2011-03-17
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Química ambiental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/8379
10.4025/actascitechnol.v33i3.8379
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/8379
identifier_str_mv 10.4025/actascitechnol.v33i3.8379
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/8379/8379
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 33 No 3 (2011); 313-322
Acta Scientiarum. Technology; v. 33 n. 3 (2011); 313-322
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_ 1799315333801050112

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