Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain
An evaluation of the energy and economic performance of thermal hydrolysis technologies is carried out on a theoretical basis. The wastewater treatment plant (WWTP) of Burgos (Spain) was the base scenario of this evaluation. Energy and mass balances were established considering the registered data o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/3/964 |
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| author | José García-Cascallana Xiomar Gómez Barrios E. Judith Martinez |
| author_facet | José García-Cascallana Xiomar Gómez Barrios E. Judith Martinez |
| author_sort | José García-Cascallana |
| collection | DOAJ |
| description | An evaluation of the energy and economic performance of thermal hydrolysis technologies is carried out on a theoretical basis. The wastewater treatment plant (WWTP) of Burgos (Spain) was the base scenario of this evaluation. Energy and mass balances were established considering the registered data of primary and secondary thickened sludge in the WWTP for 2011 to 2016. These balances were analysed considering five different scenarios, taking as Scenario 1, the plant operating with conventional mesophilic digestion. The scenarios considered commercially available technologies. The best results were obtained when hydrolysis was applied to digested sludge and sludge from the Solidstream<sup>®</sup> process. These two scenarios showed the best performance regarding volatile solid removal and lower demand for live steam, achieving a higher amount of biogas available for valorisation using combined heat and power (CHP) units. The main advantage of the hydrolysis process is the decrease in the volume of digesters and the amount of dewatered sludge needing final disposal. The Solidstream<sup>®</sup> process allowed a 35% increase in biogas available for engines and a 23% increase in electricity production. |
| first_indexed | 2024-03-09T04:05:46Z |
| format | Article |
| id | doaj.art-9a850fb76ccd439c81b66f5b8c62aff8 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T04:05:46Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9a850fb76ccd439c81b66f5b8c62aff82023-12-03T14:07:13ZengMDPI AGApplied Sciences2076-34172021-01-0111396410.3390/app11030964Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, SpainJosé García-Cascallana0Xiomar Gómez Barrios1E. Judith Martinez2Department of Electrical, Systems and Automatic Engineering, University of León, Campus de Vegazana, 24071 León, SpainChemical and Environmental Bioprocess Engineering Group, Natural Resources Institute (IRENA), University of Leon, Av. de Portugal 41, 24009 Leon, SpainChemical and Environmental Bioprocess Engineering Group, Natural Resources Institute (IRENA), University of Leon, Av. de Portugal 41, 24009 Leon, SpainAn evaluation of the energy and economic performance of thermal hydrolysis technologies is carried out on a theoretical basis. The wastewater treatment plant (WWTP) of Burgos (Spain) was the base scenario of this evaluation. Energy and mass balances were established considering the registered data of primary and secondary thickened sludge in the WWTP for 2011 to 2016. These balances were analysed considering five different scenarios, taking as Scenario 1, the plant operating with conventional mesophilic digestion. The scenarios considered commercially available technologies. The best results were obtained when hydrolysis was applied to digested sludge and sludge from the Solidstream<sup>®</sup> process. These two scenarios showed the best performance regarding volatile solid removal and lower demand for live steam, achieving a higher amount of biogas available for valorisation using combined heat and power (CHP) units. The main advantage of the hydrolysis process is the decrease in the volume of digesters and the amount of dewatered sludge needing final disposal. The Solidstream<sup>®</sup> process allowed a 35% increase in biogas available for engines and a 23% increase in electricity production.https://www.mdpi.com/2076-3417/11/3/964pretreatmentbiogas enhancementhydrolysisenergy |
| spellingShingle | José García-Cascallana Xiomar Gómez Barrios E. Judith Martinez Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain Applied Sciences pretreatment biogas enhancement hydrolysis energy |
| title | Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain |
| title_full | Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain |
| title_fullStr | Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain |
| title_full_unstemmed | Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain |
| title_short | Thermal Hydrolysis of Sewage Sludge: A Case Study of a WWTP in Burgos, Spain |
| title_sort | thermal hydrolysis of sewage sludge a case study of a wwtp in burgos spain |
| topic | pretreatment biogas enhancement hydrolysis energy |
| url | https://www.mdpi.com/2076-3417/11/3/964 |
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