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On the steady state optimization of the biogas production in a two-stage anaerobic digestion model

机译:在两阶段厌氧消化模型中沼气生产稳态优化

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In this paper, we study the optimization problem of maximizing biogas production at steady state in a two-stage anaerobic digestion model, which was initially proposed in Bernard etal. (Biotechnol Bioeng 75(4):424-438, 2001). Nominal operating points, consisting of steady states where the involved microorganisms coexist, are usually referred to as desired operational conditions, in particular for maximizing biogas production. Nevertheless, we prove that under some conditions related to input substrate concentrations and microorganism biology, characterized by their growth functions, the optimal steady state can be the extinction of one of the two species. We provide some numerical examples of this situation.
机译:在本文中,我们研究了在两级厌氧消化模型中最大化沼气生产的优化问题,最初提出了Bernard Etal。 (Biotechnol Bioeng 75(4):424-438,2001)。 标称操作点,由所涉及的微生物共存的稳定状态,通常被称为所需的操作条件,特别是用于最大化沼气生产。 然而,我们证明,在与输入底物浓度和微生物生物学相关的某些条件下,其特征在于它们的生长函数,最佳稳态可以是两个物种中的一个的灭绝。 我们提供了这种情况的一些数值例子。

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