Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167

Detalhes bibliográficos
Autor(a) principal: Benatti, Claudia Telles
Data de Publicação: 2008
Outros Autores: Tavares, Celia Regina Granhen, Dias Filho, Benedito Prado, Gaspar, Mateus Pinatto
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/2167
Resumo: The wastewater from academical chemical laboratories is generally composed of organic matter and a wide range of chemicals and heavy metals, being one of the most difficult wastewaters for treating. The treatment consisted of hydroxide precipitation and of a biological treatment using a sequencing batch reactor (SBR). Each cycle of the SBR system was operated for 24h with FILL/REACT, SETTLE and DRAW/IDLE periods in the ratio of 20:3.5:0.5. The reactor was fed with a mixture of domestic and laboratory wastewaters to minimize the inhibitory effect of laboratory wastewater on the microorganisms bioactivity. Kinetic studies conducted for the FILL/REACT and SETTLE periods showed that the effluent has difficult biodegradability, reaching a COD reduction of 11%.
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spelling Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167Reator batelada seqüencial para o tratamento de efluente químico de laboratório - DOI: 10.4025/actascitechnol.v25i2.2167efluente de laboratórioreator batelada seqüencialRBSprecipitação com hidróxido3.06.00.00-6 Engenharia QuímicaThe wastewater from academical chemical laboratories is generally composed of organic matter and a wide range of chemicals and heavy metals, being one of the most difficult wastewaters for treating. The treatment consisted of hydroxide precipitation and of a biological treatment using a sequencing batch reactor (SBR). Each cycle of the SBR system was operated for 24h with FILL/REACT, SETTLE and DRAW/IDLE periods in the ratio of 20:3.5:0.5. The reactor was fed with a mixture of domestic and laboratory wastewaters to minimize the inhibitory effect of laboratory wastewater on the microorganisms bioactivity. Kinetic studies conducted for the FILL/REACT and SETTLE periods showed that the effluent has difficult biodegradability, reaching a COD reduction of 11%.O efluente gerado em laboratórios acadêmicos de análises químicas é composto, de maneira geral, por matéria orgânica e uma grande variedade de resíduos químicos e metais pesados e consiste em um dos mais difíceis de serem tratados. O método de tratamento empregado consistia na precipitação com hidróxido e tratamento biológico em reator batelada seqüencial (RBS). Cada ciclo do sistema RBS foi operado por um período de 24h com as etapas de ENCHIMENTO/REAÇÃO, SEDIMENTAÇÃO e RETIRADA/REPOUSO na razão 20:3,5:0,5. O reator foi alimentado com uma mistura de efluente doméstico e efluente de laboratório a fim de minimizar o efeito inibitório do efluente de laboratório na bio-atividade dos microrganismos. Estudos cinéticos conduzidos para as etapas de ENCHIMENTO/REAÇÃO e SEDIMENTAÇÃO mostraram que o efluente é de difícil biodegradabilidade, alcançando uma redução de DQO de 11%.Universidade Estadual De Maringá2008-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/216710.4025/actascitechnol.v25i2.2167Acta Scientiarum. Technology; Vol 25 No 2 (2003); 141-145Acta Scientiarum. Technology; v. 25 n. 2 (2003); 141-1451806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2167/1326Benatti, Claudia TellesTavares, Celia Regina GranhenDias Filho, Benedito PradoGaspar, Mateus Pinattoinfo:eu-repo/semantics/openAccess2024-05-17T13:02:41Zoai:periodicos.uem.br/ojs:article/2167Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:41Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
Reator batelada seqüencial para o tratamento de efluente químico de laboratório - DOI: 10.4025/actascitechnol.v25i2.2167
title Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
spellingShingle Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
Benatti, Claudia Telles
efluente de laboratório
reator batelada seqüencial
RBS
precipitação com hidróxido
3.06.00.00-6 Engenharia Química
title_short Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
title_full Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
title_fullStr Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
title_full_unstemmed Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
title_sort Sequencing batch reactor for treatment of chemical laboratory wastewater - DOI: 10.4025/actascitechnol.v25i2.2167
author Benatti, Claudia Telles
author_facet Benatti, Claudia Telles
Tavares, Celia Regina Granhen
Dias Filho, Benedito Prado
Gaspar, Mateus Pinatto
author_role author
author2 Tavares, Celia Regina Granhen
Dias Filho, Benedito Prado
Gaspar, Mateus Pinatto
author2_role author
author
author
dc.contributor.author.fl_str_mv Benatti, Claudia Telles
Tavares, Celia Regina Granhen
Dias Filho, Benedito Prado
Gaspar, Mateus Pinatto
dc.subject.por.fl_str_mv efluente de laboratório
reator batelada seqüencial
RBS
precipitação com hidróxido
3.06.00.00-6 Engenharia Química
topic efluente de laboratório
reator batelada seqüencial
RBS
precipitação com hidróxido
3.06.00.00-6 Engenharia Química
description The wastewater from academical chemical laboratories is generally composed of organic matter and a wide range of chemicals and heavy metals, being one of the most difficult wastewaters for treating. The treatment consisted of hydroxide precipitation and of a biological treatment using a sequencing batch reactor (SBR). Each cycle of the SBR system was operated for 24h with FILL/REACT, SETTLE and DRAW/IDLE periods in the ratio of 20:3.5:0.5. The reactor was fed with a mixture of domestic and laboratory wastewaters to minimize the inhibitory effect of laboratory wastewater on the microorganisms bioactivity. Kinetic studies conducted for the FILL/REACT and SETTLE periods showed that the effluent has difficult biodegradability, reaching a COD reduction of 11%.
publishDate 2008
dc.date.none.fl_str_mv 2008-04-15
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/2167
10.4025/actascitechnol.v25i2.2167
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2167
identifier_str_mv 10.4025/actascitechnol.v25i2.2167
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/2167/1326
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 25 No 2 (2003); 141-145
Acta Scientiarum. Technology; v. 25 n. 2 (2003); 141-145
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
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