Enhancement of anaerobic digestion of sludge from Kraft pulp mill wastewater treatment using thermal hydrolysis
Resumen:
In the present work, the biodegradation improvement after thermal hydrolysis of the sludge generated in the aerobic wastewater treatment of a cellulose industry was evaluated. Response surfaces are presented for the different variables tested -Biomethane Potential (BMP), methane production rate and Dissolved Organic Nitrogen (DON). The variation of kinetic parameters was also determined. Increases between 100 % and 228 % were obtained for the BMPs of thermally hydrolyzed biosludge compared to untreated biosludge. In addition, increases of up to 112 % for the methane production rate of thermally hydrolyzed substrate were obtained.
| 2022 | |
| Proyecto ANII FMV-156021 | |
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Anaerobic digestion BMP Thermal hydrolysis |
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| Inglés | |
| Universidad de la República | |
| COLIBRI | |
| https://hdl.handle.net/20.500.12008/34850 | |
| Acceso abierto | |
| Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| Sumario: | In the present work, the biodegradation improvement after thermal hydrolysis of the sludge generated in the aerobic wastewater treatment of a cellulose industry was evaluated. Response surfaces are presented for the different variables tested -Biomethane Potential (BMP), methane production rate and Dissolved Organic Nitrogen (DON). The variation of kinetic parameters was also determined. Increases between 100 % and 228 % were obtained for the BMPs of thermally hydrolyzed biosludge compared to untreated biosludge. In addition, increases of up to 112 % for the methane production rate of thermally hydrolyzed substrate were obtained. |
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