Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants
The main goal of the study was to evaluate the effects of mechanical sludge disintegration for enhancing full scale anaerobic digestion of municipal sludge. Batch disintegration tests and lab dewatering tests were also performed aiming at determining the release of organic compounds and assessing th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2017-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://doi.org/10.1051/e3sconf/20172200208 |
| _version_ | 1818571774610112512 |
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| author | Żubrowska-Sudoł Monika Podedworna Jolanta Bisak Agnieszka Sytek-Szmeichel Katarzyna Krawczyk Piotr Garlicka Agnieszka |
| author_facet | Żubrowska-Sudoł Monika Podedworna Jolanta Bisak Agnieszka Sytek-Szmeichel Katarzyna Krawczyk Piotr Garlicka Agnieszka |
| author_sort | Żubrowska-Sudoł Monika |
| collection | DOAJ |
| description | The main goal of the study was to evaluate the effects of mechanical sludge disintegration for enhancing full scale anaerobic digestion of municipal sludge. Batch disintegration tests and lab dewatering tests were also performed aiming at determining the release of organic compounds and assessing the impact of disintegration of excess sludge before the fermentation process of mixed sludge on the dewaterability of post-fermented sludge, respectively. In the study a disc disintegrator driven by a motor with a power of 30 kW, revolutions n = 2950 rpm has been used. It was shown that with increase of energy consumed in the disintegration, the increased amounts of organic compounds were released from the sludge. It was also documented that the introduction of the excess sludge disintegration prior to fermentation tank, resulted in a significant increase in biogas production (by an average of 33.9%) and in increase in volatile total solids reduction in the fermented sludge (by an average of 22.7%). Moreover, the obtained results indicate the possibility of obtaining a higher degree of sludge dewatering, which was subjected to anaerobic stabilization with using disintegrated excess sludge. |
| first_indexed | 2024-12-14T18:48:47Z |
| format | Article |
| id | doaj.art-0c69a10235ad4275a5adb78ee67a5f1b |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-14T18:48:47Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-0c69a10235ad4275a5adb78ee67a5f1b2022-12-21T22:51:19ZengEDP SciencesE3S Web of Conferences2267-12422017-01-01220020810.1051/e3sconf/20172200208e3sconf_asee2017_00208Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plantsŻubrowska-Sudoł MonikaPodedworna JolantaBisak AgnieszkaSytek-Szmeichel KatarzynaKrawczyk PiotrGarlicka AgnieszkaThe main goal of the study was to evaluate the effects of mechanical sludge disintegration for enhancing full scale anaerobic digestion of municipal sludge. Batch disintegration tests and lab dewatering tests were also performed aiming at determining the release of organic compounds and assessing the impact of disintegration of excess sludge before the fermentation process of mixed sludge on the dewaterability of post-fermented sludge, respectively. In the study a disc disintegrator driven by a motor with a power of 30 kW, revolutions n = 2950 rpm has been used. It was shown that with increase of energy consumed in the disintegration, the increased amounts of organic compounds were released from the sludge. It was also documented that the introduction of the excess sludge disintegration prior to fermentation tank, resulted in a significant increase in biogas production (by an average of 33.9%) and in increase in volatile total solids reduction in the fermented sludge (by an average of 22.7%). Moreover, the obtained results indicate the possibility of obtaining a higher degree of sludge dewatering, which was subjected to anaerobic stabilization with using disintegrated excess sludge.https://doi.org/10.1051/e3sconf/20172200208 |
| spellingShingle | Żubrowska-Sudoł Monika Podedworna Jolanta Bisak Agnieszka Sytek-Szmeichel Katarzyna Krawczyk Piotr Garlicka Agnieszka Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants E3S Web of Conferences |
| title | Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants |
| title_full | Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants |
| title_fullStr | Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants |
| title_full_unstemmed | Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants |
| title_short | Intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants |
| title_sort | intensification of anaerobic digestion efficiency with use of mechanical excess sludge disintegration in the context of increased energy production in wastewater treatment plants |
| url | https://doi.org/10.1051/e3sconf/20172200208 |
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