E-Learning Proposal for 3D Modeling and Numerical Simulation with FreeFem++ for the Study of the Discontinuous Dynamics of Biological and Anaerobic Digesters

Author:

Brito-Espino Saulo1,García-Ramírez Tania1,Leon-Zerpa Federico1ORCID,Mendieta-Pino Carlos2ORCID,Santana Juan J.2ORCID,Ramos-Martín Alejandro2ORCID

Affiliation:

1. Institute for Environmental Studies and Natural Resources (i-UNAT), University of Las Palmas de Gran Canaria (ULPGC), 35017 Las Palmas de Gran Canaria, Spain

2. Department of Process Engineering, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain

Abstract

This work presents an original 3D code in FreeFem++ to recreate the behavior of anaerobic microorganisms in non-stirred anaerobic reactors with an intermittent feed. The physical and biochemical phenomena have been considered using a mathematical model based on a set of partial differential equations: Stokes, advection–diffusion, and diffusion–reaction. The description of the anaerobic metabolism was carried out by implementing the structured AMD1 model. The Galerkin finite element method has been used to solve the partial differential equations defined in the model. Finally, the methodology and procedures are presented by means of a concrete example. Thanks to the inclusion of this e-learning tool for use in virtual laboratories, it is possible to improve the understanding of engineering students on the functioning of the metabolism that takes place inside non-stirred anaerobic reactors that are fed discontinuously. This proposal reinforces to students, in a transversal way, both environmental sensitivity and awareness of the circular economy focused on the implementation of natural wastewater treatment systems in rural areas.

Funder

The Next Generation EU (NGEU) fund

INTERREG V-A Cooperation, Spain-Portugal MAC

Publisher

MDPI AG

Subject

Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Real-world application of a discrete feedback control system for flexible biogas production;Advanced Modeling and Simulation in Engineering Sciences;2023-11-27

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