Two-stage anaerobic digestion for reduced hydrogen sulphide production.
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| Title: | Two-stage anaerobic digestion for reduced hydrogen sulphide production. |
|---|---|
| Authors: | Moestedt, Jan1,2, Nordell, Erik1, Hallin, Sara3, Schnürer, Anna2 |
| Source: | Journal of Chemical Technology & Biotechnology. Apr2016, Vol. 91 Issue 4, p1055-1062. 8p. |
| Subjects: | Anaerobic digestion, Sulfide synthesis, Municipal solid waste incinerator residues, Hydrogen sulfide, RF values (Chromatography), Separation (Technology) |
| Abstract: | BACKGROUND This study evaluated a two-stage process as an alternative to single-stage anaerobic degradation, with the aim of separating sulphidogenesis and methanogenesis while treating a mixture of organic fraction municipal solid waste ( OFMSW) and thin stillage. For full-scale applications, no pH regulation was applied. The hydrolytic/acidogenic stage was evaluated with a hydraulic retention time ( HRT) between 3 and 15 days, with and without recirculation of methanogenic stage reactor material. RESULTS Homoacetogenesis dominated in the hydrolytic/acidogenic stage. However, sulphate reduction was unsuccessful. Using a two-stage approach with OFMSW at a HRT of 10 days in the first stage and 28 days in the second stage resulted in a 12% increase in specific methane production and a 6% increase in methane content. The two-stage process with thin stillage was less effective, probably because of decreasing pH (<4) in the first stage. CONCLUSION Two-stage operation resulted in a pH too low (~4) for successful sulphate reduction in the first stage. However the resulting pH and applied organic loading rate caused homoacetogenesis to dominate, producing acetate as a favourable energy carrier between the stages. © 2015 Society of Chemical Industry [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Chemical Technology & Biotechnology is the property of Wiley-Blackwell 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: 113527992 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Two-stage anaerobic digestion for reduced hydrogen sulphide production. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Moestedt%2C+Jan%22">Moestedt, Jan</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Nordell%2C+Erik%22">Nordell, Erik</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hallin%2C+Sara%22">Hallin, Sara</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Schnürer%2C+Anna%22">Schnürer, Anna</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Chemical+Technology+%26+Biotechnology%22">Journal of Chemical Technology & Biotechnology</searchLink>. Apr2016, Vol. 91 Issue 4, p1055-1062. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Anaerobic+digestion%22">Anaerobic digestion</searchLink><br /><searchLink fieldCode="DE" term="%22Sulfide+synthesis%22">Sulfide synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Municipal+solid+waste+incinerator+residues%22">Municipal solid waste incinerator residues</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+sulfide%22">Hydrogen sulfide</searchLink><br /><searchLink fieldCode="DE" term="%22RF+values+%28Chromatography%29%22">RF values (Chromatography)</searchLink><br /><searchLink fieldCode="DE" term="%22Separation+%28Technology%29%22">Separation (Technology)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: BACKGROUND This study evaluated a two-stage process as an alternative to single-stage anaerobic degradation, with the aim of separating sulphidogenesis and methanogenesis while treating a mixture of organic fraction municipal solid waste ( OFMSW) and thin stillage. For full-scale applications, no pH regulation was applied. The hydrolytic/acidogenic stage was evaluated with a hydraulic retention time ( HRT) between 3 and 15 days, with and without recirculation of methanogenic stage reactor material. RESULTS Homoacetogenesis dominated in the hydrolytic/acidogenic stage. However, sulphate reduction was unsuccessful. Using a two-stage approach with OFMSW at a HRT of 10 days in the first stage and 28 days in the second stage resulted in a 12% increase in specific methane production and a 6% increase in methane content. The two-stage process with thin stillage was less effective, probably because of decreasing pH (<4) in the first stage. CONCLUSION Two-stage operation resulted in a pH too low (~4) for successful sulphate reduction in the first stage. However the resulting pH and applied organic loading rate caused homoacetogenesis to dominate, producing acetate as a favourable energy carrier between the stages. © 2015 Society of Chemical Industry [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Chemical Technology & Biotechnology is the property of Wiley-Blackwell 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: 10.1002/jctb.4682 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 1055 Subjects: – SubjectFull: Anaerobic digestion Type: general – SubjectFull: Sulfide synthesis Type: general – SubjectFull: Municipal solid waste incinerator residues Type: general – SubjectFull: Hydrogen sulfide Type: general – SubjectFull: RF values (Chromatography) Type: general – SubjectFull: Separation (Technology) Type: general Titles: – TitleFull: Two-stage anaerobic digestion for reduced hydrogen sulphide production. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Moestedt, Jan – PersonEntity: Name: NameFull: Nordell, Erik – PersonEntity: Name: NameFull: Hallin, Sara – PersonEntity: Name: NameFull: Schnürer, Anna IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 02682575 Numbering: – Type: volume Value: 91 – Type: issue Value: 4 Titles: – TitleFull: Journal of Chemical Technology & Biotechnology Type: main |
| ResultId | 1 |
