Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal
Despite the huge current challenges in sewage sludge treatment and disposal in China, anaerobic sludge stabilisation (AnSS) is still not a state-of-the-art process in WWTP in the country. However, the potential benefits of anaerobic sludge stabilisation may outweigh the drawbacks. One of these drawb...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/8/2710 |
| _version_ | 1827619895289839616 |
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| author | Mónica Vergara-Araya Verena Hilgenfeldt Heidrun Steinmetz Jürgen Wiese |
| author_facet | Mónica Vergara-Araya Verena Hilgenfeldt Heidrun Steinmetz Jürgen Wiese |
| author_sort | Mónica Vergara-Araya |
| collection | DOAJ |
| description | Despite the huge current challenges in sewage sludge treatment and disposal in China, anaerobic sludge stabilisation (AnSS) is still not a state-of-the-art process in WWTP in the country. However, the potential benefits of anaerobic sludge stabilisation may outweigh the drawbacks. One of these drawbacks is the backload from the sludge liquor that increases the nutrient load in the biological treatment stage. This work shows via computer modelling that not only can the sludge production and disposal costs be significantly reduced, but also that, with sensible automation and operational strategies (e.g., bypass of primary clarifiers, use of a centrate dosing strategy, incorporation of ammonium nitrogen sensors, etc.), the effects of the backload can be counteracted for nitrogen removal, even considering that wastewater in China often has an unfavourable C/N ratio for nitrogen removal. The tested strategies would even improve the overall plant performance in terms of norm compliance, sludge production, energy use, and energy production |
| first_indexed | 2024-03-09T10:39:06Z |
| format | Article |
| id | doaj.art-dd026dc7417c45ea8b05655956e13147 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T10:39:06Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-dd026dc7417c45ea8b05655956e131472023-12-01T20:47:37ZengMDPI AGEnergies1996-10732022-04-01158271010.3390/en15082710Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen RemovalMónica Vergara-Araya0Verena Hilgenfeldt1Heidrun Steinmetz2Jürgen Wiese3Department for Water, Environment, Construction, and Safety, Magdeburg-Stendal University of Applied Sciences, 39114 Magdeburg, GermanyInstitute Water Infrastructure Resources, University of Kaiserslautern (TUK), 67663 Kaiserslautern, GermanyInstitute Water Infrastructure Resources, University of Kaiserslautern (TUK), 67663 Kaiserslautern, GermanyDepartment for Water, Environment, Construction, and Safety, Magdeburg-Stendal University of Applied Sciences, 39114 Magdeburg, GermanyDespite the huge current challenges in sewage sludge treatment and disposal in China, anaerobic sludge stabilisation (AnSS) is still not a state-of-the-art process in WWTP in the country. However, the potential benefits of anaerobic sludge stabilisation may outweigh the drawbacks. One of these drawbacks is the backload from the sludge liquor that increases the nutrient load in the biological treatment stage. This work shows via computer modelling that not only can the sludge production and disposal costs be significantly reduced, but also that, with sensible automation and operational strategies (e.g., bypass of primary clarifiers, use of a centrate dosing strategy, incorporation of ammonium nitrogen sensors, etc.), the effects of the backload can be counteracted for nitrogen removal, even considering that wastewater in China often has an unfavourable C/N ratio for nitrogen removal. The tested strategies would even improve the overall plant performance in terms of norm compliance, sludge production, energy use, and energy productionhttps://www.mdpi.com/1996-1073/15/8/2710anaerobic digestionbiogasenergy efficiencyICA-strategiesnitrogen removalsludge treatment |
| spellingShingle | Mónica Vergara-Araya Verena Hilgenfeldt Heidrun Steinmetz Jürgen Wiese Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal Energies anaerobic digestion biogas energy efficiency ICA-strategies nitrogen removal sludge treatment |
| title | Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal |
| title_full | Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal |
| title_fullStr | Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal |
| title_full_unstemmed | Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal |
| title_short | Combining Shift to Biogas Production in a Large WWTP in China with Optimisation of Nitrogen Removal |
| title_sort | combining shift to biogas production in a large wwtp in china with optimisation of nitrogen removal |
| topic | anaerobic digestion biogas energy efficiency ICA-strategies nitrogen removal sludge treatment |
| url | https://www.mdpi.com/1996-1073/15/8/2710 |
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