Biological treatment of hypersaline wastewater in a continuous two-phase partitioning bioreactor: Analysis of the response to step, ramp and impulse loadings and applicability evaluation.
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| Title: | Biological treatment of hypersaline wastewater in a continuous two-phase partitioning bioreactor: Analysis of the response to step, ramp and impulse loadings and applicability evaluation. |
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| Authors: | Tomei, M. Concetta1, Stazi, Valentina1, Mosca Angelucci, Domenica1 |
| Source: | Journal of Cleaner Production. Aug2018, Vol. 191, p67-77. 11p. |
| Subjects: | Wastewater treatment, Bioreactors, Dynamic testing, Mass transfer, Leather industry, Saline waters, Biological nutrient removal |
| Abstract: | The response of a continuous two-phase partitioning bioreactor (C-TPPB) operated with polymeric tubing treating hypersaline wastewater was investigated under dynamic load conditions of step, ramp and impulse inputs of the influent flow rate. Tests were performed with synthetic wastewater consisting of NaCl (100 g L −1 ) and 2,4-dimethylphenol (DMP) (∼1200 mg L −1 ) to simulate the organic fraction. A biomass specifically acclimatized to the compound was utilized in the tests. The experimental system provides separation of the toxic wastewater flowing inside the polymeric tubing (coiled in the bioreactor) from the microbial culture present in the bulk bioreactor phase with the polymer providing permeability to the organic molecules as well as a barrier to salt transport. These features allowed achieving high performance even in the most severe loading conditions. Removal efficiencies >96% were obtained for DMP under all investigated load conditions (i.e. for influent salt and organic loads up to six times the base case load). A DMP mass balance at the end of the dynamic tests showed that 88% of the removed DMP was biodegraded and only 8% was retained into the polymer tubing itself. No significant variation of the DMP concentration in the bioreactor was observed in all cases thus demonstrating the complete removal of the transferred substrate and the effective performance of the biomass, which was not affected by the applied dynamic loads. A comparative analysis of C-TPPB results with the performance data of the classical technologies commonly applied for saline wastewater treatment has been performed to evaluate the system applicability. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Cleaner Production 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 129700929 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Biological treatment of hypersaline wastewater in a continuous two-phase partitioning bioreactor: Analysis of the response to step, ramp and impulse loadings and applicability evaluation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Tomei%2C+M%2E+Concetta%22">Tomei, M. Concetta</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Stazi%2C+Valentina%22">Stazi, Valentina</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Mosca+Angelucci%2C+Domenica%22">Mosca Angelucci, Domenica</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Cleaner+Production%22">Journal of Cleaner Production</searchLink>. Aug2018, Vol. 191, p67-77. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Wastewater+treatment%22">Wastewater treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Bioreactors%22">Bioreactors</searchLink><br /><searchLink fieldCode="DE" term="%22Dynamic+testing%22">Dynamic testing</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Leather+industry%22">Leather industry</searchLink><br /><searchLink fieldCode="DE" term="%22Saline+waters%22">Saline waters</searchLink><br /><searchLink fieldCode="DE" term="%22Biological+nutrient+removal%22">Biological nutrient removal</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The response of a continuous two-phase partitioning bioreactor (C-TPPB) operated with polymeric tubing treating hypersaline wastewater was investigated under dynamic load conditions of step, ramp and impulse inputs of the influent flow rate. Tests were performed with synthetic wastewater consisting of NaCl (100 g L −1 ) and 2,4-dimethylphenol (DMP) (∼1200 mg L −1 ) to simulate the organic fraction. A biomass specifically acclimatized to the compound was utilized in the tests. The experimental system provides separation of the toxic wastewater flowing inside the polymeric tubing (coiled in the bioreactor) from the microbial culture present in the bulk bioreactor phase with the polymer providing permeability to the organic molecules as well as a barrier to salt transport. These features allowed achieving high performance even in the most severe loading conditions. Removal efficiencies >96% were obtained for DMP under all investigated load conditions (i.e. for influent salt and organic loads up to six times the base case load). A DMP mass balance at the end of the dynamic tests showed that 88% of the removed DMP was biodegraded and only 8% was retained into the polymer tubing itself. No significant variation of the DMP concentration in the bioreactor was observed in all cases thus demonstrating the complete removal of the transferred substrate and the effective performance of the biomass, which was not affected by the applied dynamic loads. A comparative analysis of C-TPPB results with the performance data of the classical technologies commonly applied for saline wastewater treatment has been performed to evaluate the system applicability. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Cleaner Production 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.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jclepro.2018.04.196 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 67 Subjects: – SubjectFull: Wastewater treatment Type: general – SubjectFull: Bioreactors Type: general – SubjectFull: Dynamic testing Type: general – SubjectFull: Mass transfer Type: general – SubjectFull: Leather industry Type: general – SubjectFull: Saline waters Type: general – SubjectFull: Biological nutrient removal Type: general Titles: – TitleFull: Biological treatment of hypersaline wastewater in a continuous two-phase partitioning bioreactor: Analysis of the response to step, ramp and impulse loadings and applicability evaluation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Tomei, M. Concetta – PersonEntity: Name: NameFull: Stazi, Valentina – PersonEntity: Name: NameFull: Mosca Angelucci, Domenica IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 09596526 Numbering: – Type: volume Value: 191 Titles: – TitleFull: Journal of Cleaner Production Type: main |
| ResultId | 1 |
