Impact of bacterial activity on turnover of insoluble hydrophobic substrates (phenanthrene and pyrene)—Model simulations for prediction of bioremediation success.
Saved in:
| Title: | Impact of bacterial activity on turnover of insoluble hydrophobic substrates (phenanthrene and pyrene)—Model simulations for prediction of bioremediation success. |
|---|---|
| Authors: | Rein, Arno1, Adam, Iris K.U.2, Miltner, Anja2, Brumme, Katja2, Kästner, Matthias2 matthias.kaestner@ufz.de, Trapp, Stefan1 |
| Source: | Journal of Hazardous Materials. Apr2016, Vol. 306, p105-114. 10p. |
| Subjects: | Bioremediation, Hydrophobic surfaces, Polycyclic aromatic hydrocarbons, Mass transfer, Mycobacterium, Phenanthrene, Prediction models |
| Abstract: | Many attempts for bioremediation of polycyclic aromatic hydrocarbon (PAH) contaminated sites failed in the past, but the reasons for this failure are not well understood. Here we apply and improve a model for integrated assessment of mass transfer, biodegradation and residual concentrations for predicting the success of remediation actions. First, we provide growth parameters for Mycobacterium rutilum and Mycobacterium pallens growing on phenanthrene (PHE) or pyrene (PYR) degraded the PAH completely at all investigated concentrations. Maximum metabolic rates v max and growth rates μ were similar for the substrates PHE and PYR and for both strains. The investigated Mycobacterium species were not superior in PHE degradation to strains investigated earlier with this method. Real-world degradation scenario simulations including diffusive flux to the microbial cells indicate: that (i) bioaugmentation only has a small, short-lived effect; (ii) Increasing sorption shifts the remaining PAH to the adsorbed/sequestered PAH pool; (iii) mobilizing by solvents or surfactants resulted in a significant decrease of the sequestered PAH, and (iv) co-metabolization e.g. by compost addition can contribute significantly to the reduction of PAH, because active biomass is maintained at a high level by the compost. The model therefore is a valuable contribution to the assessment of potential remediation action at PAH-polluted sites. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Hazardous Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 114276217 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Impact of bacterial activity on turnover of insoluble hydrophobic substrates (phenanthrene and pyrene)—Model simulations for prediction of bioremediation success. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Rein%2C+Arno%22">Rein, Arno</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Adam%2C+Iris+K%2EU%2E%22">Adam, Iris K.U.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Miltner%2C+Anja%22">Miltner, Anja</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Brumme%2C+Katja%22">Brumme, Katja</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kästner%2C+Matthias%22">Kästner, Matthias</searchLink><relatesTo>2</relatesTo><i> matthias.kaestner@ufz.de</i><br /><searchLink fieldCode="AR" term="%22Trapp%2C+Stefan%22">Trapp, Stefan</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Hazardous+Materials%22">Journal of Hazardous Materials</searchLink>. Apr2016, Vol. 306, p105-114. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Bioremediation%22">Bioremediation</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrophobic+surfaces%22">Hydrophobic surfaces</searchLink><br /><searchLink fieldCode="DE" term="%22Polycyclic+aromatic+hydrocarbons%22">Polycyclic aromatic hydrocarbons</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Mycobacterium%22">Mycobacterium</searchLink><br /><searchLink fieldCode="DE" term="%22Phenanthrene%22">Phenanthrene</searchLink><br /><searchLink fieldCode="DE" term="%22Prediction+models%22">Prediction models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Many attempts for bioremediation of polycyclic aromatic hydrocarbon (PAH) contaminated sites failed in the past, but the reasons for this failure are not well understood. Here we apply and improve a model for integrated assessment of mass transfer, biodegradation and residual concentrations for predicting the success of remediation actions. First, we provide growth parameters for Mycobacterium rutilum and Mycobacterium pallens growing on phenanthrene (PHE) or pyrene (PYR) degraded the PAH completely at all investigated concentrations. Maximum metabolic rates v max and growth rates μ were similar for the substrates PHE and PYR and for both strains. The investigated Mycobacterium species were not superior in PHE degradation to strains investigated earlier with this method. Real-world degradation scenario simulations including diffusive flux to the microbial cells indicate: that (i) bioaugmentation only has a small, short-lived effect; (ii) Increasing sorption shifts the remaining PAH to the adsorbed/sequestered PAH pool; (iii) mobilizing by solvents or surfactants resulted in a significant decrease of the sequestered PAH, and (iv) co-metabolization e.g. by compost addition can contribute significantly to the reduction of PAH, because active biomass is maintained at a high level by the compost. The model therefore is a valuable contribution to the assessment of potential remediation action at PAH-polluted sites. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Hazardous Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=114276217 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jhazmat.2015.12.005 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 105 Subjects: – SubjectFull: Bioremediation Type: general – SubjectFull: Hydrophobic surfaces Type: general – SubjectFull: Polycyclic aromatic hydrocarbons Type: general – SubjectFull: Mass transfer Type: general – SubjectFull: Mycobacterium Type: general – SubjectFull: Phenanthrene Type: general – SubjectFull: Prediction models Type: general Titles: – TitleFull: Impact of bacterial activity on turnover of insoluble hydrophobic substrates (phenanthrene and pyrene)—Model simulations for prediction of bioremediation success. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Rein, Arno – PersonEntity: Name: NameFull: Adam, Iris K.U. – PersonEntity: Name: NameFull: Miltner, Anja – PersonEntity: Name: NameFull: Brumme, Katja – PersonEntity: Name: NameFull: Kästner, Matthias – PersonEntity: Name: NameFull: Trapp, Stefan IsPartOfRelationships: – BibEntity: Dates: – D: 05 M: 04 Text: Apr2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 03043894 Numbering: – Type: volume Value: 306 Titles: – TitleFull: Journal of Hazardous Materials Type: main |
| ResultId | 1 |
