Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Ciências Ambientais (Online) |
Texto Completo: | https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834 |
Resumo: | Microalgae are unicellular organisms, photosynthesizers that present cell duplication exponentially and biosorption capacity of nutrients dissolved in water. The objective of this work was to evaluate the capacityof the microalga Pseudokirchneriella subcapitata for bioremediation of metals and salts. In this aspect, the reduction of the metals and salts in the synthetic effluents by the microalga P. subcapitata was evaluated: (T1) culture medium (control); (T2) culture medium contaminated with aluminum chloride; (T3) culture medium contaminated with ferrous sulfate; (T4) culture medium contaminated with zinc sulfate; (T5) culture medium contaminated with the combination of aluminum chloride, ferrous sulfate and zinc sulfate. The bioremediation process was evaluated by comparing culture media with suspended microalgae to a filtrate version of the same medium. Iron and zinc metals, as well as nitrogen and phosphorus salts, showed depleted values in the filtered medium, indicating efficiency in the treatment of water by microalgae. Aluminum content was below the limit of detection in all treatments. The cumulative values in the microalgae biomass were, in descending order: nitrogen, zinc, iron and phosphorus, thus indicating the assimilation of the contaminants in the algal biomass. In addition, high biomass production of the microalgae was observed. The highest production rate was verified in the synthetic effluent with the association of metals, indicating a synergy between contaminants, which was probably responsible for reducing the toxic effect on the microalgae. These results indicated high potential for bioremediation by microalga P. subcapitata, besides the possibility of using algal biomass for biotechnological applications. |
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Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitataMetals bioremediation potential using Pseudokirchneriella subcapitataadsorção; biossorção; Chlorophyceae; contaminantesAdsorption; biosorption; Chlorophyceae; contaminants.Microalgae are unicellular organisms, photosynthesizers that present cell duplication exponentially and biosorption capacity of nutrients dissolved in water. The objective of this work was to evaluate the capacityof the microalga Pseudokirchneriella subcapitata for bioremediation of metals and salts. In this aspect, the reduction of the metals and salts in the synthetic effluents by the microalga P. subcapitata was evaluated: (T1) culture medium (control); (T2) culture medium contaminated with aluminum chloride; (T3) culture medium contaminated with ferrous sulfate; (T4) culture medium contaminated with zinc sulfate; (T5) culture medium contaminated with the combination of aluminum chloride, ferrous sulfate and zinc sulfate. The bioremediation process was evaluated by comparing culture media with suspended microalgae to a filtrate version of the same medium. Iron and zinc metals, as well as nitrogen and phosphorus salts, showed depleted values in the filtered medium, indicating efficiency in the treatment of water by microalgae. Aluminum content was below the limit of detection in all treatments. The cumulative values in the microalgae biomass were, in descending order: nitrogen, zinc, iron and phosphorus, thus indicating the assimilation of the contaminants in the algal biomass. In addition, high biomass production of the microalgae was observed. The highest production rate was verified in the synthetic effluent with the association of metals, indicating a synergy between contaminants, which was probably responsible for reducing the toxic effect on the microalgae. These results indicated high potential for bioremediation by microalga P. subcapitata, besides the possibility of using algal biomass for biotechnological applications.As microalgas são organismos unicelulares, fotossintetizadores, que apresentam duplicação celular exponencial e capacidade de biossorção de nutrientes dissolvidos na água. O objetivo deste trabalho foi avaliar a capacidade de biorremediação de metais e sais pela microalga Pseudokirchneriella subcapitata. Nesse aspecto, avaliou-se a redução de metais e sais nos efluentes sintéticos pelas microalgas P. subcapitata: (T1) meio de cultura (controle); (T2) meio de cultura contaminado com cloreto de alumínio; (T3) meio de cultura contaminado com sulfato ferroso; (T4) meio de cultura contaminado com sulfato de zinco; (T5) meio de cultura contaminado com a combinação de cloreto de alumínio, sulfato ferroso e sulfato de zinco. O processo de biorremediação foi avaliado comparando o meio de cultura com microalgas em suspensão e o mesmo meio filtrado. Metais de ferro e zinco, assim como sais de nitrogênio e fósforo, apresentaram valores esgotados no meio filtrado, indicando eficiência no tratamento da água por microalgas. O teor de alumínio ficou abaixo do limite de detecção em todos os tratamentos. Os valores acumulados na biomassa de microalgas, em ordem decrescente, foram nitrogênio, zinco, ferro e fósforo, indicando assim a assimilação dos contaminantes na biomassa de algas. Além disso, foi observada alta produção de biomassa das microalgas. A maior taxa de produção foi verificada no efluente sintético com a associação de metais, indicando sinergia entre contaminantes, provavelmente responsável pela redução do efeito tóxico nas microalgas. Esses resultados indicaram alto potencial de biorremediação pela microalga P. subcapitata, além da possibilidade de utilização de biomassa de microalgas para aplicações biotecnológicas.Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)2021-06-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/xmlhttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/83410.5327/Z21769478834Revista Brasileira de Ciências Ambientais (RBCIAMB); v. 56 n. 2 (2021): RBCIAMB - ISSN 2176-9478 - Junho; 223-231Revista Brasileira de Ciências Ambientais (RBCIAMB); Vol. 56 No. 2 (2021): RBCIAMB - ISSN 2176-9478 - June; 223-2312176-94781808-4524reponame:Revista Brasileira de Ciências Ambientais (Online)instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)instacron:ABESenghttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834/607https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834/622Copyright (c) 2021 Brazilian Journal of Environmental Sciences (Online)http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessAnsilago, MônicaOttonelli, FranciéliCarvalho, Emerson Machado de2023-11-09T17:40:19Zoai:ojs.www.rbciamb.com.br:article/834Revistahttp://www.rbciamb.com.br/index.php/Publicacoes_RBCIAMBhttps://www.rbciamb.com.br/Publicacoes_RBCIAMB/oairbciamb@abes-dn.org.br||2176-94781804-4524opendoar:2023-11-09T17:40:19Revista Brasileira de Ciências Ambientais (Online) - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES)false |
dc.title.none.fl_str_mv |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata Metals bioremediation potential using Pseudokirchneriella subcapitata |
title |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata |
spellingShingle |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata Ansilago, Mônica adsorção; biossorção; Chlorophyceae; contaminantes Adsorption; biosorption; Chlorophyceae; contaminants. |
title_short |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata |
title_full |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata |
title_fullStr |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata |
title_full_unstemmed |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata |
title_sort |
Potencial de biorremediação de metais pela microalga Pseudokirchneriella subcapitata |
author |
Ansilago, Mônica |
author_facet |
Ansilago, Mônica Ottonelli, Franciéli Carvalho, Emerson Machado de |
author_role |
author |
author2 |
Ottonelli, Franciéli Carvalho, Emerson Machado de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ansilago, Mônica Ottonelli, Franciéli Carvalho, Emerson Machado de |
dc.subject.por.fl_str_mv |
adsorção; biossorção; Chlorophyceae; contaminantes Adsorption; biosorption; Chlorophyceae; contaminants. |
topic |
adsorção; biossorção; Chlorophyceae; contaminantes Adsorption; biosorption; Chlorophyceae; contaminants. |
description |
Microalgae are unicellular organisms, photosynthesizers that present cell duplication exponentially and biosorption capacity of nutrients dissolved in water. The objective of this work was to evaluate the capacityof the microalga Pseudokirchneriella subcapitata for bioremediation of metals and salts. In this aspect, the reduction of the metals and salts in the synthetic effluents by the microalga P. subcapitata was evaluated: (T1) culture medium (control); (T2) culture medium contaminated with aluminum chloride; (T3) culture medium contaminated with ferrous sulfate; (T4) culture medium contaminated with zinc sulfate; (T5) culture medium contaminated with the combination of aluminum chloride, ferrous sulfate and zinc sulfate. The bioremediation process was evaluated by comparing culture media with suspended microalgae to a filtrate version of the same medium. Iron and zinc metals, as well as nitrogen and phosphorus salts, showed depleted values in the filtered medium, indicating efficiency in the treatment of water by microalgae. Aluminum content was below the limit of detection in all treatments. The cumulative values in the microalgae biomass were, in descending order: nitrogen, zinc, iron and phosphorus, thus indicating the assimilation of the contaminants in the algal biomass. In addition, high biomass production of the microalgae was observed. The highest production rate was verified in the synthetic effluent with the association of metals, indicating a synergy between contaminants, which was probably responsible for reducing the toxic effect on the microalgae. These results indicated high potential for bioremediation by microalga P. subcapitata, besides the possibility of using algal biomass for biotechnological applications. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-23 |
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 |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834 10.5327/Z21769478834 |
url |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834 |
identifier_str_mv |
10.5327/Z21769478834 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834/607 https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/834/622 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Brazilian Journal of Environmental Sciences (Online) http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Brazilian Journal of Environmental Sciences (Online) http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/xml |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
publisher.none.fl_str_mv |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciências Ambientais (RBCIAMB); v. 56 n. 2 (2021): RBCIAMB - ISSN 2176-9478 - Junho; 223-231 Revista Brasileira de Ciências Ambientais (RBCIAMB); Vol. 56 No. 2 (2021): RBCIAMB - ISSN 2176-9478 - June; 223-231 2176-9478 1808-4524 reponame:Revista Brasileira de Ciências Ambientais (Online) instname:Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) instacron:ABES |
instname_str |
Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
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ABES |
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ABES |
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Revista Brasileira de Ciências Ambientais (Online) |
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Revista Brasileira de Ciências Ambientais (Online) |
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Revista Brasileira de Ciências Ambientais (Online) - Associação Brasileira de Engenharia Sanitária e Ambiental (ABES) |
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rbciamb@abes-dn.org.br|| |
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