High-solids anaerobic digestion model for homogenized reactors

WATER RESEARCH

卷:142

Article

Pastor-Poquet, Vicente^1,2  Papirio, Stefano³  Steyer, Jean-Philippe²  Trably, Eric²  Escudie, Renaud²  Esposito, Giovanni¹ 

[1] Univ Cassino & Southern Lazio, Dept Civil & Mech Engn, Via De Biasio 43, I-03043 Cassino, FR, Italy

[2] Univ Montpellier, LBE, INRA, 102 Ave Etangs, F-11100 Narbonne, France

[3] Univ Napoli Federico II, Dept Civil Architectural & Environm Engn, Via Claudio 21, I-80125 Naples, Italy

关键词: High-solids anaerobic digestion;    ADM1;    Reactor mass simulation;    Total solids;    Apparent concentrations;   

DOI  :  10.1016/j.watres.2018.06.016

来源: Elsevier

【 摘 要 】

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 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, the HS-AD model might bring further insight about potentially inhibitory mechanisms (i.e. NH3 buildup and/or acidification) occurring in HS-AD of OFMSW. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

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