Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions
It is possible to consult this version in open access at the following web address: arXiv:2011.11638
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| Main Authors: | , , , , , , , , |
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2020-11-15
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| Subjects: | Herbicide removal, White-rot fungi, Transformation products, Bioreactor, Response surface methodology, High-resolution mass spectrometry, |
| Online Access: | http://hdl.handle.net/10261/218275 http://dx.doi.org/10.13039/501100000780 |
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Herbicide removal White-rot fungi Transformation products Bioreactor Response surface methodology High-resolution mass spectrometry Herbicide removal White-rot fungi Transformation products Bioreactor Response surface methodology High-resolution mass spectrometry |
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Herbicide removal White-rot fungi Transformation products Bioreactor Response surface methodology High-resolution mass spectrometry Herbicide removal White-rot fungi Transformation products Bioreactor Response surface methodology High-resolution mass spectrometry Hu, Kaidi Torán, Josefina López-García, Ester Barbieri, Maria Vittoria Postigo, Cristina López de Alda, Miren Caminal, Glòria Sarrà, Montserrat Blánquez, Paqui Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
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It is possible to consult this version in open access at the following web address: arXiv:2011.11638 |
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European Commission |
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European Commission Hu, Kaidi Torán, Josefina López-García, Ester Barbieri, Maria Vittoria Postigo, Cristina López de Alda, Miren Caminal, Glòria Sarrà, Montserrat Blánquez, Paqui |
| format |
artículo |
| topic_facet |
Herbicide removal White-rot fungi Transformation products Bioreactor Response surface methodology High-resolution mass spectrometry |
| author |
Hu, Kaidi Torán, Josefina López-García, Ester Barbieri, Maria Vittoria Postigo, Cristina López de Alda, Miren Caminal, Glòria Sarrà, Montserrat Blánquez, Paqui |
| author_sort |
Hu, Kaidi |
| title |
Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
| title_short |
Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
| title_full |
Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
| title_fullStr |
Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
| title_full_unstemmed |
Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
| title_sort |
fungal bioremediation of diuron-contaminated waters: evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions |
| publisher |
Elsevier |
| publishDate |
2020-11-15 |
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http://hdl.handle.net/10261/218275 http://dx.doi.org/10.13039/501100000780 |
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dig-idaea-es-10261-2182752021-11-15T05:30:42Z Fungal bioremediation of diuron-contaminated waters: Evaluation of its degradation and the effect of amendable factors on its removal in a trickle-bed reactor under non-sterile conditions Hu, Kaidi Torán, Josefina López-García, Ester Barbieri, Maria Vittoria Postigo, Cristina López de Alda, Miren Caminal, Glòria Sarrà, Montserrat Blánquez, Paqui European Commission Postigo, Cristina [0000-0002-7344-7044] López De Alda, Miren [0000-0002-9347-2765] Caminal, Glòria [0000-0001-9646-6099] Herbicide removal White-rot fungi Transformation products Bioreactor Response surface methodology High-resolution mass spectrometry It is possible to consult this version in open access at the following web address: arXiv:2011.11638 The occurrence of the extensively used herbicide diuron in the environment poses a severe threat to the ecosystem and human health. Four different ligninolytic fungi were studied as biodegradation candidates for the removal of diuron. Among them, T. versicolor was the most effective species, degrading rapidly not only diuron (83%) but also the major metabolite 3,4-dichloroaniline (100%), after 7-day incubation. During diuron degradation, five transformation products (TPs) were found to be formed and the structures for three of them are tentatively proposed. According to the identified TPs, a hydroxylated intermediate 3-(3,4-dichlorophenyl)-1-hydroxymethyl-1-methylurea (DCPHMU) was further metabolized into the N-dealkylated compounds 3-(3,4-dichlorophenyl)-1-methylurea (DCPMU) and 3,4-dichlorophenylurea (DCPU). The discovery of DCPHMU suggests a relevant role of hydroxylation for subsequent N-demethylation, helping to better understand the main reaction mechanisms of diuron detoxification. Experiments also evidenced that degradation reactions may occur intracellularly and be catalyzed by the cytochrome P450 system. A response surface method, established by central composite design, assisted in evaluating the effect of operational variables in a trickle-bed bioreactor immobilized with T. versicolor on diuron removal. The best performance was obtained at low recycling ratios and influent flow rates. Furthermore, results indicate that the contact time between the contaminant and immobilized fungi plays a crucial role in diuron removal. This study represents a pioneering step forward amid techniques for bioremediation of pesticides-contaminated waters using fungal reactors at a real scale. This work has been supported by the Spanish Ministry of Economy and Competitiveness State Research Agency (CTM2016-75587-C2-1-R and CTM2016-75587-C2-2-R) and co-financed by the European Union through the European Regional Development Fund (ERDF) and the Horizon 2020 research and innovation WATERPROTECT project (727450). This work was partly supported by the Generalitat de Catalunya (Consolidate Research Group 2017-SGR-14) and the Ministry of Science and Innovation (Project CEX2018-000794-S). The Department of Chemical, Biological and Environmental Engineering of the Universitat Autònoma de Barcelona is a member of the Xarxa de Referència en Biotecnologia de la Generalitat de Catalunya. K. Hu acknowledges the financial support from the Chinese Scholarship Council. Peer reviewed 2020-08-20T07:34:37Z 2020-08-20T07:34:37Z 2020-11-15 artículo http://purl.org/coar/resource_type/c_6501 Science of the Total Environment 140628 (2020) http://hdl.handle.net/10261/218275 10.1016/j.scitotenv.2020.140628 http://dx.doi.org/10.13039/501100000780 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/727450 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-75587-C2-1-R info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-75587-C2-2-R info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/CEX2018-000794-S Postprint https://doi.org/10.1016/j.scitotenv.2020.140628 Sí open Elsevier |