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Vegetable processing wastes addition to improve swine manure anaerobic digestion: Evaluation in terms of methane yield and SEM characterization

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Title: Vegetable processing wastes addition to improve swine manure anaerobic digestion: Evaluation in terms of methane yield and SEM characterization
Authors: Molinuevo-Salces, Beatriz1 gargonmi@itacyl.es, González-Fernández, Cristina1, Gómez, Xiomar2, García-González, María Cruz1, Morán, Antonio2
Source: Applied Energy. Mar2012, Vol. 91 Issue 1, p36-42. 7p.
Subjects: Vegetable processing plants, Industrial wastes, Anaerobic digestion, Swine manure, Methane, Scanning electron microscopy, Chemical reactors, Clinical pathology
Abstract: Abstract: The effect of adding vegetable waste as a co-substrate in the anaerobic digestion of swine manure was investigated. The study was carried out at laboratory scale using semi-continuous stirred tank reactors working at 37°C. Organic loading rates (OLRs) of 0.4 and 0.6g VSL−1 d−1 were evaluated, corresponding to hydraulic retention times (HRTs) of 25 and 15d, respectively. The addition of vegetable wastes (50% dw/dw) resulted in an improvement of 3 and 1.4-fold in methane yields at HRTs of 25 and 15d, respectively. Changes on microbial morphotypes were studied by Scanning Electron Microscopy (SEM). Samples analyzed were sludge used as inoculum and digestate obtained from swine manure anaerobic reactors. SEM pictures demonstrated that lignocellulosic material was not completely degraded. Additionally, microbial composition was found to change to cocci and rods morphotypes after 120d of anaerobic digestion. [Copyright &y& Elsevier]
Copyright of Applied Energy 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
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DbLabel: Engineering Source
An: 67625792
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Vegetable processing wastes addition to improve swine manure anaerobic digestion: Evaluation in terms of methane yield and SEM characterization
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  Data: <searchLink fieldCode="AR" term="%22Molinuevo-Salces%2C+Beatriz%22">Molinuevo-Salces, Beatriz</searchLink><relatesTo>1</relatesTo><i> gargonmi@itacyl.es</i><br /><searchLink fieldCode="AR" term="%22González-Fernández%2C+Cristina%22">González-Fernández, Cristina</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Gómez%2C+Xiomar%22">Gómez, Xiomar</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22García-González%2C+María+Cruz%22">García-González, María Cruz</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Morán%2C+Antonio%22">Morán, Antonio</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Energy%22">Applied Energy</searchLink>. Mar2012, Vol. 91 Issue 1, p36-42. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Vegetable+processing+plants%22">Vegetable processing plants</searchLink><br /><searchLink fieldCode="DE" term="%22Industrial+wastes%22">Industrial wastes</searchLink><br /><searchLink fieldCode="DE" term="%22Anaerobic+digestion%22">Anaerobic digestion</searchLink><br /><searchLink fieldCode="DE" term="%22Swine+manure%22">Swine manure</searchLink><br /><searchLink fieldCode="DE" term="%22Methane%22">Methane</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopy%22">Scanning electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+reactors%22">Chemical reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Clinical+pathology%22">Clinical pathology</searchLink>
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  Data: Abstract: The effect of adding vegetable waste as a co-substrate in the anaerobic digestion of swine manure was investigated. The study was carried out at laboratory scale using semi-continuous stirred tank reactors working at 37°C. Organic loading rates (OLRs) of 0.4 and 0.6g VSL−1 d−1 were evaluated, corresponding to hydraulic retention times (HRTs) of 25 and 15d, respectively. The addition of vegetable wastes (50% dw/dw) resulted in an improvement of 3 and 1.4-fold in methane yields at HRTs of 25 and 15d, respectively. Changes on microbial morphotypes were studied by Scanning Electron Microscopy (SEM). Samples analyzed were sludge used as inoculum and digestate obtained from swine manure anaerobic reactors. SEM pictures demonstrated that lignocellulosic material was not completely degraded. Additionally, microbial composition was found to change to cocci and rods morphotypes after 120d of anaerobic digestion. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Applied Energy 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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      – Type: doi
        Value: 10.1016/j.apenergy.2011.09.010
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      – Code: eng
        Text: English
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        PageCount: 7
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      – SubjectFull: Vegetable processing plants
        Type: general
      – SubjectFull: Industrial wastes
        Type: general
      – SubjectFull: Anaerobic digestion
        Type: general
      – SubjectFull: Swine manure
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      – SubjectFull: Methane
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      – SubjectFull: Scanning electron microscopy
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      – SubjectFull: Chemical reactors
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      – SubjectFull: Clinical pathology
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      – TitleFull: Vegetable processing wastes addition to improve swine manure anaerobic digestion: Evaluation in terms of methane yield and SEM characterization
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            NameFull: Molinuevo-Salces, Beatriz
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            NameFull: González-Fernández, Cristina
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            NameFull: Gómez, Xiomar
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            NameFull: García-González, María Cruz
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              Text: Mar2012
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