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High-solids anaerobic digestion model for homogenized reactors

Abstract : During high-solids anaerobic digestion (HS-AD) of the organic fraction of municipal solid waste (OFMSW), an important total solid (TS) removal occurs, leading to the modification of the reactor content mass/volume, in contrast to ‘wet’ anaerobic digestion (AD). Therefore, HS-AD mathematical simulations need to be approached differently than ‘wet’ AD simulations. This study aimed to develop a modelling tool based on the anaerobic digestion model 1 (ADM1) capable of simulating the TS and the reactor mass/volume dynamics in the HS-AD of OFMSW. Four hypotheses were used, including the effects of apparent concentrations at high TS. The model simulated adequately HS-AD of OFMSW in batch and continuous mode, particularly the evolution of TS, reactor mass, ammonia and volatile fatty acids. By adequately simulating the reactor content mass/volume and the TS, this model might bring further insight about potentially inhibitory mechanisms (i.e. NH3 buildup and/or acidification) occurring in HS-AD of OFMSW.
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https://hal.inrae.fr/hal-02625164
Contributor : Migration Prodinra <>
Submitted on : Wednesday, June 2, 2021 - 5:20:57 PM
Last modification on : Wednesday, June 2, 2021 - 5:21:23 PM

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Vicente Pastor Poquet, Stefano Papirio, Jean-Philippe Steyer, Eric Trably, Renaud Escudié, et al.. High-solids anaerobic digestion model for homogenized reactors. Water Research, IWA Publishing, 2018, 142, pp.501-511. ⟨10.1016/j.watres.2018.06.016⟩. ⟨hal-02625164⟩

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