Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams

Detalhes bibliográficos
Autor(a) principal: Dias, Diogo
Data de Publicação: 2018
Outros Autores: Lapa, Nuno, Bernardo, Maria, Ribeiro, W., Matos, Inês, Fonseca, Isabel Maria, Pinto, Filomena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/3087
Resumo: ABSTRACT: Blends of rice waste streams were submitted to co-gasification assays. The resulting chars (G1C and G2C) were characterized and used in Cr(III) removal assays from a synthetic solution. A Commercial Activated Carbon (CAC) was used for comparison purposes. The chars were non-porous materials mainly composed by ashes (68.3-92.6% w/w). The influences of adsorbent loading (solid/liquid ratio - S/L) and initial pH in Cr(III) removal were tested. G2C at a S/L of 5 mg L-1 and an initial pH of 4.50 presented an uptake capacity significantly higher than CAC (7.29 and 2.59 mg g(-1), respectively). G2C was used in Cr(III) removal assays from an industrial wastewater with Cr(III) concentrations of 50, 100 and 200 mg L-1. Cr(III) removal by precipitation (uptake capacity ranging from 11.1 to 14.9mg g(-1)) was more effective in G2C, while adsorption (uptake capacity of 16.1 mg g(-1)) was the main removal mechanism in CAC.
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spelling Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streamsThermochemical processesGasificationRice wastesWastewater treatmentWaste valorizationChromiumIndustrial wastewatersABSTRACT: Blends of rice waste streams were submitted to co-gasification assays. The resulting chars (G1C and G2C) were characterized and used in Cr(III) removal assays from a synthetic solution. A Commercial Activated Carbon (CAC) was used for comparison purposes. The chars were non-porous materials mainly composed by ashes (68.3-92.6% w/w). The influences of adsorbent loading (solid/liquid ratio - S/L) and initial pH in Cr(III) removal were tested. G2C at a S/L of 5 mg L-1 and an initial pH of 4.50 presented an uptake capacity significantly higher than CAC (7.29 and 2.59 mg g(-1), respectively). G2C was used in Cr(III) removal assays from an industrial wastewater with Cr(III) concentrations of 50, 100 and 200 mg L-1. Cr(III) removal by precipitation (uptake capacity ranging from 11.1 to 14.9mg g(-1)) was more effective in G2C, while adsorption (uptake capacity of 16.1 mg g(-1)) was the main removal mechanism in CAC.ElsevierRepositório do LNEGDias, DiogoLapa, NunoBernardo, MariaRibeiro, W.Matos, InêsFonseca, Isabel MariaPinto, Filomena2018-10-25T10:26:11Z20182018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/3087engDias, D.; Lapa, N.; Bernardo, M... [et.al.]. - Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams. In: Bioresource Technology, 2018, Vol. 266, p. 139-1500960-8524info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-13T06:26:50ZPortal AgregadorONG
dc.title.none.fl_str_mv Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
title Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
spellingShingle Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
Dias, Diogo
Thermochemical processes
Gasification
Rice wastes
Wastewater treatment
Waste valorization
Chromium
Industrial wastewaters
title_short Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
title_full Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
title_fullStr Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
title_full_unstemmed Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
title_sort Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams
author Dias, Diogo
author_facet Dias, Diogo
Lapa, Nuno
Bernardo, Maria
Ribeiro, W.
Matos, Inês
Fonseca, Isabel Maria
Pinto, Filomena
author_role author
author2 Lapa, Nuno
Bernardo, Maria
Ribeiro, W.
Matos, Inês
Fonseca, Isabel Maria
Pinto, Filomena
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Dias, Diogo
Lapa, Nuno
Bernardo, Maria
Ribeiro, W.
Matos, Inês
Fonseca, Isabel Maria
Pinto, Filomena
dc.subject.por.fl_str_mv Thermochemical processes
Gasification
Rice wastes
Wastewater treatment
Waste valorization
Chromium
Industrial wastewaters
topic Thermochemical processes
Gasification
Rice wastes
Wastewater treatment
Waste valorization
Chromium
Industrial wastewaters
description ABSTRACT: Blends of rice waste streams were submitted to co-gasification assays. The resulting chars (G1C and G2C) were characterized and used in Cr(III) removal assays from a synthetic solution. A Commercial Activated Carbon (CAC) was used for comparison purposes. The chars were non-porous materials mainly composed by ashes (68.3-92.6% w/w). The influences of adsorbent loading (solid/liquid ratio - S/L) and initial pH in Cr(III) removal were tested. G2C at a S/L of 5 mg L-1 and an initial pH of 4.50 presented an uptake capacity significantly higher than CAC (7.29 and 2.59 mg g(-1), respectively). G2C was used in Cr(III) removal assays from an industrial wastewater with Cr(III) concentrations of 50, 100 and 200 mg L-1. Cr(III) removal by precipitation (uptake capacity ranging from 11.1 to 14.9mg g(-1)) was more effective in G2C, while adsorption (uptake capacity of 16.1 mg g(-1)) was the main removal mechanism in CAC.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-25T10:26:11Z
2018
2018-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.9/3087
url http://hdl.handle.net/10400.9/3087
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Dias, D.; Lapa, N.; Bernardo, M... [et.al.]. - Cr(III) removal from synthetic and industrial wastewaters by using co-gasification chars of rice waste streams. In: Bioresource Technology, 2018, Vol. 266, p. 139-150
0960-8524
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 Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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