Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
| Autor: | Ricardo Aguilar-López, Pablo A. López-Pérez, M. I. Neria-González |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Work (thermodynamics) State variable Materials science Article Subject General Chemical Engineering 030106 microbiology chemistry.chemical_element 010501 environmental sciences 01 natural sciences Industrial and Manufacturing Engineering Metal 03 medical and health sciences Control theory Bioreactor Electrical and Electronic Engineering 0105 earth and related environmental sciences Civil and Structural Engineering Cadmium Mechanical Engineering Nonlinear system chemistry lcsh:TA1-2040 Hardware and Architecture visual_art visual_art.visual_art_medium lcsh:Engineering (General). Civil engineering (General) Biological system Anaerobic exercise |
| Zdroj: | Journal of Engineering, Vol 2016 (2016) |
| ISSN: | 2314-4912 2314-4904 |
| Popis: | This work presents a control strategy for a continuous bioreactor for heavy metal removal. For this aim, regulation of the sulfate concentration, which is considered the measured and controlled state variable, allowed diminishing the cadmium concentration in the bioreactor, where the corresponding controller was designed via nonlinear bounded function. Furthermore, a nonlinear controllability analysis was done, which proved the closed-loop instability of the inner or uncontrolled dynamics of the bioreactor. A mathematical model, experimentally corroborated for cadmium removal, was employed as a benchmark for the proposed controller. Numerical experiments clearly illustrated the successful implementation of this methodology; therefore, cadmium removal amounted to more than 99%, when the initial cadmium concentration was up to 170 mg/L in continuous operating mode. |
| Databáze: | OpenAIRE |
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