Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/10229 https://doi.org/10.1016/j.chemosphere.2008.09.083 |
Resumo: | A previously developed potential cleanup tool for atrazine contaminated soils was evaluated in larger open soil microcosms for optimization under more realistic conditions, using a natural crop soil spiked with an atrazine commercial formulation (Atrazerba FL). The doses used were 20£ or 200£ higher than the recommended dose (RD) for an agricultural application, mimicking over-use or spill situations. Pseudomonas sp. strain ADP was used for bioaugmentation (around 107 or 108 viable cells g¡1 of soil) and citrate for biostimulation (up to 4.8 mg g¡1 of soil). Bioremediation treatments providing fastest and higher atrazine biodegradation proved to differ according to the initial level of soil ontamination. For 20£ RD of Atrazerba FL, a unique inoculation with Pseudomonas sp. ADP (9 ± 1 £ 107 CFU g¡1) resulted in rapid atrazine removal (99% of the initial 7.2 ± 1.6 lg g¡1 after 8 d), independent of citrate. For 200£ RD, an inoculation with the atrazine- degrading bacteria (8.5 ± 0.5 £ 107 CFU g¡1) supplemented with citrate amendment (2.4 mg g¡1) resulted in improved biodegradation (87%) compared with bioaugmentation alone (79%), even though 7.8 ± 2.1 lg of atrazine g¡1 still remained in the soil after 1 wk. owever, the same amount of inoculum, distributed over three successive inoculations and combined with citrate, increased Pseudomonas sp. ADP survival and atrazine biodegradation (to 98%, in 1 wk). We suggest that this bioremediation tool may be valuable for efficient removal of atrazine from contaminated field soils thus minimizing atrazine and its chlorinated derivatives from reaching water compartments. |
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Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approachesBioremediationScaleOpen soil microcosmsPseudomonas sp. ADPRepeated inoculationsAtrazine removalA previously developed potential cleanup tool for atrazine contaminated soils was evaluated in larger open soil microcosms for optimization under more realistic conditions, using a natural crop soil spiked with an atrazine commercial formulation (Atrazerba FL). The doses used were 20£ or 200£ higher than the recommended dose (RD) for an agricultural application, mimicking over-use or spill situations. Pseudomonas sp. strain ADP was used for bioaugmentation (around 107 or 108 viable cells g¡1 of soil) and citrate for biostimulation (up to 4.8 mg g¡1 of soil). Bioremediation treatments providing fastest and higher atrazine biodegradation proved to differ according to the initial level of soil ontamination. For 20£ RD of Atrazerba FL, a unique inoculation with Pseudomonas sp. ADP (9 ± 1 £ 107 CFU g¡1) resulted in rapid atrazine removal (99% of the initial 7.2 ± 1.6 lg g¡1 after 8 d), independent of citrate. For 200£ RD, an inoculation with the atrazine- degrading bacteria (8.5 ± 0.5 £ 107 CFU g¡1) supplemented with citrate amendment (2.4 mg g¡1) resulted in improved biodegradation (87%) compared with bioaugmentation alone (79%), even though 7.8 ± 2.1 lg of atrazine g¡1 still remained in the soil after 1 wk. owever, the same amount of inoculum, distributed over three successive inoculations and combined with citrate, increased Pseudomonas sp. ADP survival and atrazine biodegradation (to 98%, in 1 wk). We suggest that this bioremediation tool may be valuable for efficient removal of atrazine from contaminated field soils thus minimizing atrazine and its chlorinated derivatives from reaching water compartments.FEDER, POCI Programme, PPCDT Programme and Fundação para a Ciência e a Tecnologia, PortugalElsevier2008-11-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/10229http://hdl.handle.net/10316/10229https://doi.org/10.1016/j.chemosphere.2008.09.083engChemosphere 74 (2009) 187–1920045-6535Lima, D.Viana, P.André, S.Chelinho, S.Costa, C.Ribeiro, R.Sousa, J. P.Fialho, A. M.Viegas, C. A.info: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:RCAAP2020-11-10T15:20:53Zoai:estudogeral.uc.pt:10316/10229Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:55:24.578630Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
title |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
spellingShingle |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches Lima, D. Bioremediation Scale Open soil microcosms Pseudomonas sp. ADP Repeated inoculations Atrazine removal |
title_short |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
title_full |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
title_fullStr |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
title_full_unstemmed |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
title_sort |
Evaluating a bioremediation tool for atrazine contaminated soils in open soil microcosms: The effectiveness of bioaugmentation and biostimulation approaches |
author |
Lima, D. |
author_facet |
Lima, D. Viana, P. André, S. Chelinho, S. Costa, C. Ribeiro, R. Sousa, J. P. Fialho, A. M. Viegas, C. A. |
author_role |
author |
author2 |
Viana, P. André, S. Chelinho, S. Costa, C. Ribeiro, R. Sousa, J. P. Fialho, A. M. Viegas, C. A. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Lima, D. Viana, P. André, S. Chelinho, S. Costa, C. Ribeiro, R. Sousa, J. P. Fialho, A. M. Viegas, C. A. |
dc.subject.por.fl_str_mv |
Bioremediation Scale Open soil microcosms Pseudomonas sp. ADP Repeated inoculations Atrazine removal |
topic |
Bioremediation Scale Open soil microcosms Pseudomonas sp. ADP Repeated inoculations Atrazine removal |
description |
A previously developed potential cleanup tool for atrazine contaminated soils was evaluated in larger open soil microcosms for optimization under more realistic conditions, using a natural crop soil spiked with an atrazine commercial formulation (Atrazerba FL). The doses used were 20£ or 200£ higher than the recommended dose (RD) for an agricultural application, mimicking over-use or spill situations. Pseudomonas sp. strain ADP was used for bioaugmentation (around 107 or 108 viable cells g¡1 of soil) and citrate for biostimulation (up to 4.8 mg g¡1 of soil). Bioremediation treatments providing fastest and higher atrazine biodegradation proved to differ according to the initial level of soil ontamination. For 20£ RD of Atrazerba FL, a unique inoculation with Pseudomonas sp. ADP (9 ± 1 £ 107 CFU g¡1) resulted in rapid atrazine removal (99% of the initial 7.2 ± 1.6 lg g¡1 after 8 d), independent of citrate. For 200£ RD, an inoculation with the atrazine- degrading bacteria (8.5 ± 0.5 £ 107 CFU g¡1) supplemented with citrate amendment (2.4 mg g¡1) resulted in improved biodegradation (87%) compared with bioaugmentation alone (79%), even though 7.8 ± 2.1 lg of atrazine g¡1 still remained in the soil after 1 wk. owever, the same amount of inoculum, distributed over three successive inoculations and combined with citrate, increased Pseudomonas sp. ADP survival and atrazine biodegradation (to 98%, in 1 wk). We suggest that this bioremediation tool may be valuable for efficient removal of atrazine from contaminated field soils thus minimizing atrazine and its chlorinated derivatives from reaching water compartments. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-11-11 |
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/10316/10229 http://hdl.handle.net/10316/10229 https://doi.org/10.1016/j.chemosphere.2008.09.083 |
url |
http://hdl.handle.net/10316/10229 https://doi.org/10.1016/j.chemosphere.2008.09.083 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chemosphere 74 (2009) 187–192 0045-6535 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133841592418304 |