For several years, a 1 m3 fixed bed anaerobic digestion process has been operated for the treatment of distillery vinasses. This reactor has been fully instrumented with the following variables available on-line: pH, temperature, liquid and gas flow rates, gas composition (i.e., CH4, CO2 and H2), concentration of bicarbonate, chemical oxygen demand, total organic carbon, volatile fatty acids and partial and total alkalinity, these last four variables being measured twice by different techniques (i.e., using a TOC analyzer, a titrimetric sensor and an infrared spectrometer). The purpose of this paper is to compare the respective benefits of advanced instrumentation for the monitoring of wastewater treatment processes in general, and for anaerobic digestion in particular. It will also provide some statistical analysis of the time required to operate a fully instrumented wastewater treatment process. It is indeed well admitted in the literature that instrumentation is usually the main limitation step for using closed-loop control. However, it is our opinion that, in the near future, this situation will change. This point is discussed based on our four years practical experience.
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Research Article|
February 01 2002
Evaluation of a four year experience with a fully instrumented anaerobic digestion process
J.P. Steyer;
J.P. Steyer
1Laboratoire de Biotechnologie de l'Environnement, INRA, Avenue des Etangs, 11100 Narbonne, France
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J.C. Bouvier;
J.C. Bouvier
1Laboratoire de Biotechnologie de l'Environnement, INRA, Avenue des Etangs, 11100 Narbonne, France
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T. Conte;
T. Conte
1Laboratoire de Biotechnologie de l'Environnement, INRA, Avenue des Etangs, 11100 Narbonne, France
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P. Gras;
P. Gras
1Laboratoire de Biotechnologie de l'Environnement, INRA, Avenue des Etangs, 11100 Narbonne, France
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P. Sousbie
P. Sousbie
1Laboratoire de Biotechnologie de l'Environnement, INRA, Avenue des Etangs, 11100 Narbonne, France
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Water Sci Technol (2002) 45 (4-5): 495–502.
Citation
J.P. Steyer, J.C. Bouvier, T. Conte, P. Gras, P. Sousbie; Evaluation of a four year experience with a fully instrumented anaerobic digestion process. Water Sci Technol 1 February 2002; 45 (4-5): 495–502. doi: https://doi.org/10.2166/wst.2002.0654
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J.P. Steyer, J.C. Bouvier, T. Conte, P. Gras, P. Sousbie; Evaluation of a four year experience with a fully instrumented anaerobic digestion process. Water Sci Technol 1 February 2002; 45 (4-5): 495–502. doi: https://doi.org/10.2166/wst.2002.0654
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