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Use of fermentation processes for improving the dissolution of phosphorus and its recovery from waste activated sludge.

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Title: Use of fermentation processes for improving the dissolution of phosphorus and its recovery from waste activated sludge.
Authors: Bareha, Y.1 (AUTHOR), Saoudi, M.1 (AUTHOR), Santellani, A. C.1 (AUTHOR), Le Bihan, A.1 (AUTHOR), Picard, S.1 (AUTHOR), Mebarki, C.2 (AUTHOR), Cunha, M.3 (AUTHOR), Daumer, M.-L.1 (AUTHOR) marie-line.daumer@inrae.fr
Source: Environmental Technology. Apr2022, Vol. 43 Issue 9, p1307-1317. 11p.
Subject Terms: *Waste recycling, *Activated sludge process, *Phosphorus in water, *Iron, *Phosphorus, *Organic acids, Fermentation, Wheat starch
Abstract: Recycling phosphorus from waste activated sludge has attracted a lot of interest to tackle the problem of phosphorus stocks depletion and the increase in food demand. In this study, the use of fermentation processes was investigated to enhance phosphorus dissolution from waste activated sludge to improve its recycling. Two fermentation processes, bioacidification and dark fermentation, were used on two different sludges fermented with wheat starch syrup in continuous operating conditions. Hydrogen yield from the co-substrate fermentation with waste activated sludge reached 3.9 mmolH2.gCODcosubstrate−1 yield during dark fermentation process and was negligible during bioacidification. Dissolved phosphorus in the waste activated sludge increased by 68% during bioacidification and by 43% during dark fermentation. In both processes, phosphorus dissolution was accompanied by iron, calcium and magnesium dissolution. Results show that fermentation enhances phosphorus dissolution in waste activated sludge to improve its recovery along with hydrogen and organic acids. [ABSTRACT FROM AUTHOR]
Copyright of Environmental Technology is the property of Taylor & Francis Ltd 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.)
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  Data: Use of fermentation processes for improving the dissolution of phosphorus and its recovery from waste activated sludge.
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  Data: <searchLink fieldCode="AR" term="%22Bareha%2C+Y%2E%22">Bareha, Y.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Saoudi%2C+M%2E%22">Saoudi, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Santellani%2C+A%2E+C%2E%22">Santellani, A. C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Le+Bihan%2C+A%2E%22">Le Bihan, A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Picard%2C+S%2E%22">Picard, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mebarki%2C+C%2E%22">Mebarki, C.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cunha%2C+M%2E%22">Cunha, M.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Daumer%2C+M%2E-L%2E%22">Daumer, M.-L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> marie-line.daumer@inrae.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22Environmental+Technology%22">Environmental Technology</searchLink>. Apr2022, Vol. 43 Issue 9, p1307-1317. 11p.
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  Data: *<searchLink fieldCode="DE" term="%22Waste+recycling%22">Waste recycling</searchLink><br />*<searchLink fieldCode="DE" term="%22Activated+sludge+process%22">Activated sludge process</searchLink><br />*<searchLink fieldCode="DE" term="%22Phosphorus+in+water%22">Phosphorus in water</searchLink><br />*<searchLink fieldCode="DE" term="%22Iron%22">Iron</searchLink><br />*<searchLink fieldCode="DE" term="%22Phosphorus%22">Phosphorus</searchLink><br />*<searchLink fieldCode="DE" term="%22Organic+acids%22">Organic acids</searchLink><br /><searchLink fieldCode="DE" term="%22Fermentation%22">Fermentation</searchLink><br /><searchLink fieldCode="DE" term="%22Wheat+starch%22">Wheat starch</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Recycling phosphorus from waste activated sludge has attracted a lot of interest to tackle the problem of phosphorus stocks depletion and the increase in food demand. In this study, the use of fermentation processes was investigated to enhance phosphorus dissolution from waste activated sludge to improve its recycling. Two fermentation processes, bioacidification and dark fermentation, were used on two different sludges fermented with wheat starch syrup in continuous operating conditions. Hydrogen yield from the co-substrate fermentation with waste activated sludge reached 3.9 mmolH2.gCODcosubstrate−1 yield during dark fermentation process and was negligible during bioacidification. Dissolved phosphorus in the waste activated sludge increased by 68% during bioacidification and by 43% during dark fermentation. In both processes, phosphorus dissolution was accompanied by iron, calcium and magnesium dissolution. Results show that fermentation enhances phosphorus dissolution in waste activated sludge to improve its recovery along with hydrogen and organic acids. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Environmental Technology is the property of Taylor & Francis Ltd 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: 10.1080/09593330.2020.1827301
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 1307
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      – SubjectFull: Waste recycling
        Type: general
      – SubjectFull: Activated sludge process
        Type: general
      – SubjectFull: Phosphorus in water
        Type: general
      – SubjectFull: Iron
        Type: general
      – SubjectFull: Phosphorus
        Type: general
      – SubjectFull: Organic acids
        Type: general
      – SubjectFull: Fermentation
        Type: general
      – SubjectFull: Wheat starch
        Type: general
    Titles:
      – TitleFull: Use of fermentation processes for improving the dissolution of phosphorus and its recovery from waste activated sludge.
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            NameFull: Le Bihan, A.
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            – D: 01
              M: 04
              Text: Apr2022
              Type: published
              Y: 2022
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