Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers
The aqueous phase produced from the hydrothermal liquefaction (HTL) of three matrices (Plasmix treated with different operative conditions and polystyrene) was subjected to acidogenic fermentation (AF) batch tests to obtain organic acids, which are the ideal substrates for biopolymers (e.g., polyhyd...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIDIC Servizi S.r.l.
2023-06-01
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| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/13401 |
| _version_ | 1797791000451612672 |
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| author | Flavia Marzulli Sogand Musivand Miriana Arengi Benedetta De Caprariis Paolo De Filippis Angela Marchetti Mauro Majone Marianna Villano |
| author_facet | Flavia Marzulli Sogand Musivand Miriana Arengi Benedetta De Caprariis Paolo De Filippis Angela Marchetti Mauro Majone Marianna Villano |
| author_sort | Flavia Marzulli |
| collection | DOAJ |
| description | The aqueous phase produced from the hydrothermal liquefaction (HTL) of three matrices (Plasmix treated with different operative conditions and polystyrene) was subjected to acidogenic fermentation (AF) batch tests to obtain organic acids, which are the ideal substrates for biopolymers (e.g., polyhydroxyalkanoates, PHA) production from mixed microbial cultures (MMC). Parallel tests in the presence of only HTL water fractions or only glucose (an easily biodegradable compound), or in presence of both, were conducted and compared to assess any possible recalcitrant or inhibitory effect of plastic waste from the HTL treatment during the AF process. These tests resulted, within approximately 30 days of operation, in a conversion of 96 ± 21% (COD/COD) of the Plasmix by-products after a 2h thermochemical treatment into organic acids, a 54 ± 7% (COD/COD) of conversion for Plasmix by-products treated 4h, and 29 ± 1% (COD/COD) of conversion in the presence of polystyrene residual water. |
| first_indexed | 2024-03-13T02:12:32Z |
| format | Article |
| id | doaj.art-eb41d630790241e4ba7f80e2139eaa00 |
| institution | Directory Open Access Journal |
| issn | 2283-9216 |
| language | English |
| last_indexed | 2024-03-13T02:12:32Z |
| publishDate | 2023-06-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj.art-eb41d630790241e4ba7f80e2139eaa002023-06-30T22:32:06ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162023-06-0110010.3303/CET23100079Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into BiopolymersFlavia MarzulliSogand MusivandMiriana ArengiBenedetta De CaprariisPaolo De FilippisAngela MarchettiMauro MajoneMarianna VillanoThe aqueous phase produced from the hydrothermal liquefaction (HTL) of three matrices (Plasmix treated with different operative conditions and polystyrene) was subjected to acidogenic fermentation (AF) batch tests to obtain organic acids, which are the ideal substrates for biopolymers (e.g., polyhydroxyalkanoates, PHA) production from mixed microbial cultures (MMC). Parallel tests in the presence of only HTL water fractions or only glucose (an easily biodegradable compound), or in presence of both, were conducted and compared to assess any possible recalcitrant or inhibitory effect of plastic waste from the HTL treatment during the AF process. These tests resulted, within approximately 30 days of operation, in a conversion of 96 ± 21% (COD/COD) of the Plasmix by-products after a 2h thermochemical treatment into organic acids, a 54 ± 7% (COD/COD) of conversion for Plasmix by-products treated 4h, and 29 ± 1% (COD/COD) of conversion in the presence of polystyrene residual water.https://www.cetjournal.it/index.php/cet/article/view/13401 |
| spellingShingle | Flavia Marzulli Sogand Musivand Miriana Arengi Benedetta De Caprariis Paolo De Filippis Angela Marchetti Mauro Majone Marianna Villano Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers Chemical Engineering Transactions |
| title | Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers |
| title_full | Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers |
| title_fullStr | Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers |
| title_full_unstemmed | Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers |
| title_short | Coupled Biological and Thermochemical Process for Plastic Waste Conversion Into Biopolymers |
| title_sort | coupled biological and thermochemical process for plastic waste conversion into biopolymers |
| url | https://www.cetjournal.it/index.php/cet/article/view/13401 |
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