2026-04-17T05:48:06Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1844642025-12-04T19:35:00Zcom_2072_1057col_2072_478813col_2072_478917

00925njm 22002777a 4500 dc Vinardell Cruañas, Sergi author Astals Garcia, Sergi author Koch, Konrad author Mata Álvarez, Joan author Dosta Parras, Joan author 2022-03-28T15:06:12Z 2022-03-28T15:06:12Z 2021-06 2022-03-28T15:06:12Z The implementation of anaerobic membrane bioreactor as mainstream technology would reduce the load of sidestream anaerobic digesters. This research evaluated the techno-economic implications of co-digesting sewage sludge and food waste in such wastewater treatment plants to optimise the usage of the sludge line infrastructure. Three organic loading rates (1.0, 1.5 and 2.0 kg VS m− 3 d− 1 ) and different strategies to manage the additional nutrients backload were considered. Results showed that the higher electricity revenue from co-digesting food waste offsets the additional costs of food waste acceptance infrastructure and biosolids disposal. However, the higher electricity revenue did not offset the additional costs when the nutrients backload was treated in the sidestream (partial-nitritation/anammox and struvite precipitation). Biosolids disposal was identified as the most important gross cost contributor in all the scenarios. Finally, a sensitivity analysis showed that food waste gate fee had a noticeable influence on co-digestion economic feasibility Digestió anaeròbia Bioreactors Depuració de l'aigua Anaerobic digestion Bioreactors Water purification Co-digestion of sewage sludge and food waste in a wastewater treatment plant based on mainstream anaerobic membrane bioreactor technology: A techno-economic evaluation