期刊
IEEE TRANSACTIONS ON AUTOMATIC CONTROL
卷 67, 期 9, 页码 4932-4938出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAC.2022.3167310
关键词
Substrates; Biomass; Kinetic theory; Transient analysis; Trajectory; Steady-state; Media; Bioprocess; compartmental system; convex relaxation; second-order cone programming (SOCP); wastewater treatment
资金
- Natural Sciences and Engineering Research Council of Canada
- French LabEx NUMEV [ANR-10 LABX-20]
This paper optimizes a general model of bioprocesses and proposes a convex relaxation method to efficiently solve the problem of microbial growth in biochemical reactors. The feasibility and accuracy of the model are verified through numerical experiments.
We optimize a general model of bioprocesses, which is nonconvex due to the microbial growth in the biochemical reactors. We formulate a convex relaxation and give conditions guaranteeing its exactness in both the transient and steady-state cases. When the growth kinetics are modeled by the Contois or, under constant biomass, Monod or Powell functions, the relaxation is a second-order cone program, which can be solved efficiently at large scales. We implement the model on a numerical example based on a wastewater treatment system.
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