Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal

Detalhes bibliográficos
Autor(a) principal: Zanella, Odivan
Data de Publicação: 2014
Outros Autores: Tessaro, Isabel Cristina, Feris, Liliana Amaral
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/100106
Resumo: The efficiency of the application of a chemically-modified activated carbon surface was investigated. The purpose of this study was to examine the effect of treatment with CaCl2 solution at a concentration of 2000 mg.L-1 on the sorption of nitrate ions from aqueous solutions in successive sorption/t reatment cycles. The sorbent was initially subjected to chemical treatment with CaCl2 and subsequently to the sorption process. Nine sorption cycles were performed. The concentrations of nitrate ions in the solution were measured by UV-Vis spectrophotometry before and after sorption. The results show that treatment with CaCl2 caused a significant increase in the percentage removal for each treatment step, reaching a removal rate of 80% of nitrate in the solution after nine cycles.
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spelling Zanella, OdivanTessaro, Isabel CristinaFeris, Liliana Amaral2014-08-12T02:10:35Z20140104-6632http://hdl.handle.net/10183/100106000919100The efficiency of the application of a chemically-modified activated carbon surface was investigated. The purpose of this study was to examine the effect of treatment with CaCl2 solution at a concentration of 2000 mg.L-1 on the sorption of nitrate ions from aqueous solutions in successive sorption/t reatment cycles. The sorbent was initially subjected to chemical treatment with CaCl2 and subsequently to the sorption process. Nine sorption cycles were performed. The concentrations of nitrate ions in the solution were measured by UV-Vis spectrophotometry before and after sorption. The results show that treatment with CaCl2 caused a significant increase in the percentage removal for each treatment step, reaching a removal rate of 80% of nitrate in the solution after nine cycles.application/pdfengBrazilian journal of chemical engineering. São Paulo, SP. Vol. 31, no.1 (Jan./Mar. 2014), p. 205-210Carvão ativadoNitratoSorçãoActivated carbonNitrateSorptionModified surfaceCaCl2Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removalinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000919100.pdf000919100.pdfTexto completo (inglês)application/pdf374335http://www.lume.ufrgs.br/bitstream/10183/100106/1/000919100.pdf09229946070e990375cec2fc137ea392MD51TEXT000919100.pdf.txt000919100.pdf.txtExtracted Texttext/plain20342http://www.lume.ufrgs.br/bitstream/10183/100106/2/000919100.pdf.txtb4815ba03815be8d42b20799b1a5a5dcMD52THUMBNAIL000919100.pdf.jpg000919100.pdf.jpgGenerated Thumbnailimage/jpeg1958http://www.lume.ufrgs.br/bitstream/10183/100106/3/000919100.pdf.jpgec2dafb34169b722681860ced78c34a5MD5310183/1001062023-04-17 03:27:57.460948oai:www.lume.ufrgs.br:10183/100106Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-04-17T06:27:57Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
title Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
spellingShingle Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
Zanella, Odivan
Carvão ativado
Nitrato
Sorção
Activated carbon
Nitrate
Sorption
Modified surface
CaCl2
title_short Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
title_full Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
title_fullStr Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
title_full_unstemmed Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
title_sort Study of CaCl2 as an agent that modifies the surface of activated carbon used in sorption/treatment cycles for nitrate removal
author Zanella, Odivan
author_facet Zanella, Odivan
Tessaro, Isabel Cristina
Feris, Liliana Amaral
author_role author
author2 Tessaro, Isabel Cristina
Feris, Liliana Amaral
author2_role author
author
dc.contributor.author.fl_str_mv Zanella, Odivan
Tessaro, Isabel Cristina
Feris, Liliana Amaral
dc.subject.por.fl_str_mv Carvão ativado
Nitrato
Sorção
topic Carvão ativado
Nitrato
Sorção
Activated carbon
Nitrate
Sorption
Modified surface
CaCl2
dc.subject.eng.fl_str_mv Activated carbon
Nitrate
Sorption
Modified surface
CaCl2
description The efficiency of the application of a chemically-modified activated carbon surface was investigated. The purpose of this study was to examine the effect of treatment with CaCl2 solution at a concentration of 2000 mg.L-1 on the sorption of nitrate ions from aqueous solutions in successive sorption/t reatment cycles. The sorbent was initially subjected to chemical treatment with CaCl2 and subsequently to the sorption process. Nine sorption cycles were performed. The concentrations of nitrate ions in the solution were measured by UV-Vis spectrophotometry before and after sorption. The results show that treatment with CaCl2 caused a significant increase in the percentage removal for each treatment step, reaching a removal rate of 80% of nitrate in the solution after nine cycles.
publishDate 2014
dc.date.accessioned.fl_str_mv 2014-08-12T02:10:35Z
dc.date.issued.fl_str_mv 2014
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format article
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/100106
dc.identifier.issn.pt_BR.fl_str_mv 0104-6632
dc.identifier.nrb.pt_BR.fl_str_mv 000919100
identifier_str_mv 0104-6632
000919100
url http://hdl.handle.net/10183/100106
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Brazilian journal of chemical engineering. São Paulo, SP. Vol. 31, no.1 (Jan./Mar. 2014), p. 205-210
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