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Fate of Biodegradable Polymers Under Industrial Conditions for Anaerobic Digestion and Aerobic Composting of Food Waste.

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Title: Fate of Biodegradable Polymers Under Industrial Conditions for Anaerobic Digestion and Aerobic Composting of Food Waste.
Authors: Bandini, F.1 (AUTHOR), Frache, A.2 (AUTHOR), Ferrarini, A.3 (AUTHOR), Taskin, E.1 (AUTHOR), Cocconcelli, P. S.1 (AUTHOR), Puglisi, Edoardo1 (AUTHOR) edoardo.puglisi@unicatt.it
Source: Journal of Polymers & the Environment. Sep2020, Vol. 28 Issue 9, p2539-2550. 12p.
Subject Terms: *Biodegradable plastics, *Anaerobic digestion, *Composting, *Polymers, Anaerobic capacity, Digestion, Differential scanning calorimetry, Lactic acid
Abstract: Biodegradable polymers were introduced in the past decades in order to address the issue of plastic pollutions, and these materials have thus required the development of methodologies to understand and evaluate their disintegration. The aim of this study was to simulate the organic fraction of municipal solid waste (OFMSW) treatment in laboratory-scale and to assess the biodegradation of poly(lactic acid) (PLA) water bottles and starch-based bags under real industrial conditions of anaerobic digestion and aerobic composting. Methane production and loss of mass were determined to estimate the anaerobic degradation; whereas phytotoxicity tests were carried out to provide an evaluation of the compost quality. To visualize the effects on the materials, SEM analyses, differential scanning calorimetry (DSC) and FT-IR/ATR spectroscopy were performed. Different outcomes were found for the tested bioplastics products. PLA bottles didn't biodegrade under anaerobic conditions and the pieces appeared wrap up at the end, while starch-based bioplastic bags performed 85.79% of disintegration degree. CH4 production was between 40 and 50% for both the products. Phytotoxicity test on the final composts highlighted negative effects on both selected seeds for PLA solutions. Water-soluble lactic acid from degraded PLA bottle significantly reduced the pH of compost affecting seed germination and germination indexes. Both bioplastics showed chemical modification according to DSC and FT-IR/ATR analyses. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Polymers & the Environment is the property of Springer Nature 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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  Label: Title
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  Data: Fate of Biodegradable Polymers Under Industrial Conditions for Anaerobic Digestion and Aerobic Composting of Food Waste.
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  Data: <searchLink fieldCode="AR" term="%22Bandini%2C+F%2E%22">Bandini, F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frache%2C+A%2E%22">Frache, A.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ferrarini%2C+A%2E%22">Ferrarini, A.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Taskin%2C+E%2E%22">Taskin, E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cocconcelli%2C+P%2E+S%2E%22">Cocconcelli, P. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Puglisi%2C+Edoardo%22">Puglisi, Edoardo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> edoardo.puglisi@unicatt.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Polymers+%26+the+Environment%22">Journal of Polymers & the Environment</searchLink>. Sep2020, Vol. 28 Issue 9, p2539-2550. 12p.
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  Data: *<searchLink fieldCode="DE" term="%22Biodegradable+plastics%22">Biodegradable plastics</searchLink><br />*<searchLink fieldCode="DE" term="%22Anaerobic+digestion%22">Anaerobic digestion</searchLink><br />*<searchLink fieldCode="DE" term="%22Composting%22">Composting</searchLink><br />*<searchLink fieldCode="DE" term="%22Polymers%22">Polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Anaerobic+capacity%22">Anaerobic capacity</searchLink><br /><searchLink fieldCode="DE" term="%22Digestion%22">Digestion</searchLink><br /><searchLink fieldCode="DE" term="%22Differential+scanning+calorimetry%22">Differential scanning calorimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Lactic+acid%22">Lactic acid</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Biodegradable polymers were introduced in the past decades in order to address the issue of plastic pollutions, and these materials have thus required the development of methodologies to understand and evaluate their disintegration. The aim of this study was to simulate the organic fraction of municipal solid waste (OFMSW) treatment in laboratory-scale and to assess the biodegradation of poly(lactic acid) (PLA) water bottles and starch-based bags under real industrial conditions of anaerobic digestion and aerobic composting. Methane production and loss of mass were determined to estimate the anaerobic degradation; whereas phytotoxicity tests were carried out to provide an evaluation of the compost quality. To visualize the effects on the materials, SEM analyses, differential scanning calorimetry (DSC) and FT-IR/ATR spectroscopy were performed. Different outcomes were found for the tested bioplastics products. PLA bottles didn't biodegrade under anaerobic conditions and the pieces appeared wrap up at the end, while starch-based bioplastic bags performed 85.79% of disintegration degree. CH4 production was between 40 and 50% for both the products. Phytotoxicity test on the final composts highlighted negative effects on both selected seeds for PLA solutions. Water-soluble lactic acid from degraded PLA bottle significantly reduced the pH of compost affecting seed germination and germination indexes. Both bioplastics showed chemical modification according to DSC and FT-IR/ATR analyses. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Polymers & the Environment is the property of Springer Nature 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: 10.1007/s10924-020-01791-y
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 2539
    Subjects:
      – SubjectFull: Biodegradable plastics
        Type: general
      – SubjectFull: Anaerobic digestion
        Type: general
      – SubjectFull: Composting
        Type: general
      – SubjectFull: Polymers
        Type: general
      – SubjectFull: Anaerobic capacity
        Type: general
      – SubjectFull: Digestion
        Type: general
      – SubjectFull: Differential scanning calorimetry
        Type: general
      – SubjectFull: Lactic acid
        Type: general
    Titles:
      – TitleFull: Fate of Biodegradable Polymers Under Industrial Conditions for Anaerobic Digestion and Aerobic Composting of Food Waste.
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            NameFull: Bandini, F.
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            NameFull: Frache, A.
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            NameFull: Ferrarini, A.
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            NameFull: Taskin, E.
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            – D: 01
              M: 09
              Text: Sep2020
              Type: published
              Y: 2020
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              Value: 15662543
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              Value: 28
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