Institute of Chemical Engineering Sciences, Stadiou, Platani, Patras GR 26504, Greece; School of Chemical Engineering, National Technical University of Athens, GR 15780 Athens, Greece.
Institute of Chemical Engineering Sciences, Stadiou, Platani, Patras GR 26504, Greece.
Bioresour Technol. 2018 Feb;250:784-792. doi: 10.1016/j.biortech.2017.12.005. Epub 2017 Dec 6.
In this study a novel modeling approach for describing fermentative hydrogen production in a continuous stirred tank reactor (CSTR) was developed, using the Aquasim modeling platform. This model accounts for the key metabolic reactions taking place in a fermentative hydrogen producing reactor, using fixed stoichiometry but different reaction rates. Biomass yields are determined based on bioenergetics. The model is capable of describing very well the variation in the distribution of metabolic products for a wide range of hydraulic retention times (HRT). The modeling approach is demonstrated using the experimental data obtained from a CSTR, fed with food industry waste (FIW), operating at different HRTs. The kinetic parameters were estimated through fitting to the experimental results. Hydrogen and total biogas production rates were predicted very well by the model, validating the basic assumptions regarding the implicated stoichiometric biochemical reactions and their kinetic rates.
在这项研究中，使用 Aquasim 建模平台开发了一种新颖的模型方法，用于描述连续搅拌釜式反应器 (CSTR) 中的发酵产氢过程。该模型使用固定化学计量比但不同反应速率来描述在发酵产氢反应器中发生的关键代谢反应。生物量产率基于生物能量学确定。该模型能够很好地描述在广泛的水力停留时间 (HRT) 范围内代谢产物分布的变化。该建模方法使用从用食品工业废物 (FIW) 进料的 CSTR 获得的实验数据进行了演示，该 CSTR 在不同的 HRT 下运行。通过拟合实验结果来估计动力学参数。模型很好地预测了氢气和总沼气的产生速率，验证了关于所涉及的化学计量生化反应及其动力学速率的基本假设。
