2021
DOI: 10.3390/w13233383
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Simulation of an Oxic-Settling-Anaerobic Pilot Plant Operated under Real Conditions Using the Activated Sludge Model No.2d

Abstract: Oxic-settling-anaerobic (OSA) process has been introduced into the treatment line of wastewater in order to upgrade activated sludge processes and to reduce the production of excess sludge. The aim of the present study was to simulate the performance of an OSA pilot plant by implementing the Activated Sludge Model No.2d (ASM2d) into a mathematical modelling software (BioWin). The stepwise calibration, performed both by off-line experiments and software dynamic calibration, was carried out in a heuristic way, a… Show more

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“…The parameter estimation is performed by finding parameters that minimize a quadratic cost function given by the sum-of-square of the relative errors between the model output and measured process data. As reported in the literature, see, for instance, Abusam et al (2001), Wang et al (2017), Muoio et al (2019), Du et al (2020), Vitanza et al (2021) and Wu et al (2021), the fitted parameters can describe the different characteristics of different wastewater treatment plants. In the second step, we hypothesize that the time-variation of these parameters is caused by the changes in the biological process in the reactors, which are reflected by the dynamics in the biological composition of the activated sludge.…”
Section: Coarse-grained Modelingmentioning
confidence: 83%
“…The parameter estimation is performed by finding parameters that minimize a quadratic cost function given by the sum-of-square of the relative errors between the model output and measured process data. As reported in the literature, see, for instance, Abusam et al (2001), Wang et al (2017), Muoio et al (2019), Du et al (2020), Vitanza et al (2021) and Wu et al (2021), the fitted parameters can describe the different characteristics of different wastewater treatment plants. In the second step, we hypothesize that the time-variation of these parameters is caused by the changes in the biological process in the reactors, which are reflected by the dynamics in the biological composition of the activated sludge.…”
Section: Coarse-grained Modelingmentioning
confidence: 83%