对城市固体废物有机部分进行高固体厌氧消化中的非理想生物物理化学效应进行建模。
Modelling non-ideal bio-physical-chemical effects on high-solids anaerobic digestion of the organic fraction of municipal solid waste.
机构信息
Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, via Di Biasio 43, 03043, Cassino, FR, Italy; LBE, Univ Montpellier, INRA, 102 avenue des Etangs, 11100, Narbonne, France.
Department of Civil, Architectural and Environmental Engineering, University of Napoli Federico II, via Claudio 21, 80125, Napoli, Italy.
出版信息
J Environ Manage. 2019 May 15;238:408-419. doi: 10.1016/j.jenvman.2019.03.014. Epub 2019 Mar 11.
This study evaluates the main effects of including 'non-ideal' bio-physical-chemical corrections in high-solids anaerobic digestion (HS-AD) of the organic fraction of municipal solid waste (OFMSW), at total solid (TS) between 10 and 40%. As a novel approach, a simple 'non-ideal' module, accounting for the effects of ionic strength (I) on the main acid-base equilibriums, was coupled to a HS-AD model, to jointly evaluate the effects of 'non-ideality' and the TS content dynamics on the HS-AD bio-physical-chemistry. 'Non-ideality' influenced the pH, concentration of inhibitors (i.e. NH), and liquid-gas transfer (i.e. CO), particularly at higher TS (i.e. ≥ 20%). Meanwhile, fitting the experimental data for batch assays at 15% TS showed that HS-AD of OFMSW might be operated at I ≥ 0.5 M. Therefore, all HS-AD simulations should account for 'non-ideal' corrections, when assessing the main inhibitory mechanisms (i.e. NH buildup and acidification) potentially occurring in HS-AD of OFMSW.
本研究评估了在总固体（TS）为 10%至 40%之间的高固体厌氧消化（HS-AD）中纳入“非理想”生物物理化学校正的主要影响，针对有机废物（OFMSW）的有机部分。作为一种新方法，一个简单的“非理想”模块，用于考虑离子强度（I）对主要酸碱平衡的影响，被耦合到 HS-AD 模型中，以共同评估“非理想性”和 TS 含量动态对 HS-AD 生物物理化学的影响。“非理想性”影响了 pH 值、抑制剂（即 NH）的浓度和液-气转移（即 CO），特别是在更高的 TS（即≥20%）下。同时，拟合 15%TS 批次试验的实验数据表明，OFMSW 的 HS-AD 可能在 I≥0.5 M 下运行。因此，在评估 HS-AD 中 OFMSW 可能发生的主要抑制机制（即 NH 积累和酸化）时，所有 HS-AD 模拟都应考虑“非理想”校正。
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