Estimation of Yield, Growth Rate, Decay Rate, and Half-Saturation Coefficients of ASM1 Model Parameters

Vivekanandan, B.; Rao, A. Seshagiri

doi:10.1007/s41742-017-0037-z

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…The calibrated 𝜇𝜇 H in both AO (9.3 d -1 ) and low-DO OA (2.2 d -1 ) SBR simulations were lower than the default value in ASM1 after temperature correction [15]. A calibrated value of 𝜇𝜇 H (6.232 d -1 ) for a domestic WWTP in India was also much lower than the default value after temperature correction to 30°C [35]. Vivekanandan et al [35] suggested that the large difference in the default and the calibrated 𝜇𝜇 H was not surprising as the heterotrophs are a diverse group of microorganisms with a wide range of growth kinetics.…”

Section: Model Calibrationmentioning

confidence: 75%

“…A calibrated value of 𝜇𝜇 H (6.232 d -1 ) for a domestic WWTP in India was also much lower than the default value after temperature correction to 30°C [35]. Vivekanandan et al [35] suggested that the large difference in the default and the calibrated 𝜇𝜇 H was not surprising as the heterotrophs are a diverse group of microorganisms with a wide range of growth kinetics. Similarly, Henze et al [15] also suggested a wide range of 𝜇𝜇 H from 3 d -1 to 13.2 d -1 at 20°C to account for the large variation in the heterotrophic growth kinetics.…”

Section: Model Calibrationmentioning

confidence: 96%

See 1 more Smart Citation

Kinetic characterization of a low-dissolved‑oxygen oxic-anoxic process treating low COD/N tropical wastewater revealed selection of nitrifiers with high substrate affinity

How

Shoji

Tan

et al. 2021

Journal of Water Process Engineering

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Section: Model Calibrationmentioning

confidence: 75%

Section: Model Calibrationmentioning

confidence: 96%

Kinetic characterization of a low-dissolved‑oxygen oxic-anoxic process treating low COD/N tropical wastewater revealed selection of nitrifiers with high substrate affinity

How

Shoji

Tan

et al. 2021

Journal of Water Process Engineering

View full text Add to dashboard Cite

“…Therefore, the parameters are estimated using respirometric analysis at 25°C and are included in Table 4. For a detailed explanation of the estimation of kinetic and stoichiometric parameters, one can refer to Vivekanandan and Rao (2017) in which the authors estimated the parameters at 23°C. The same procedures are adapted and the estimation is carried out at 25°C for the present work.…”

Section: Methodsmentioning

confidence: 99%

Design and evaluation of advanced automatic control strategies in a total nitrogen removal activated sludge plant

Tejaswini

Babu

Rao

2020

Water & Environment J

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Advanced control strategies are designed for an activated sludge‐based wastewater treatment plant (WWTP) consisting of two anoxic, three aerobic reactors and secondary settler by considering the influent data from an existing WWTP. Four different control strategies (PI/FPI/MPC/FLC) are designed and a systematic procedure is developed to implement these control strategies. The plant performance is evaluated using operational cost index (OCI) and effluent quality index (EQI) and the controller performance is assessed based on integral of squared error. The EQI and OCI for open loop are reported as 4469 and 12 743 respectively. Whereas, when advanced controllers are implemented, a significant decrease of 19.89% and 5.24% in EQI and OCI is observed for MPC and a decrease of 20.9% and 4.63% in EQI and OCI is observed for fuzzy controller. The outcomes of this research help the wastewater utilities to adopt advanced control strategies for enhanced operation and decision‐making.

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“…This characteristic represents an "energetical factor" of growth and is influenced by the interplay of diffusion rates through the bacteria membrane, the oxygen gradient within the system, the enzymatic processes, the temperature, etc. [30]. Several approaches have been focused on interpreting the Monod function by theoretically applying thermodynamic, kinetic, or statistical models [31][32][33][34][35].…”

Section: Modelmentioning

confidence: 99%

Self-Healing of Cementitious Materials via Bacteria: A Theoretical Study

et al. 2022

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Cracks on the surface of cementitious composites represent an entrance gate for harmful substances—particularly water—to devastate the bulk of material, which results in lower durability. Autogenous crack-sealing is a significantly limited mechanism due to a combination of the hydration process and calcite nucleation, and self-healing cementitious composites are a research area that require a great deal of scientific effort. In contrast to time-consuming experiments (e.g., only the preparation of an applicable bare concrete sample itself requires more than 28 days), appropriately selected mathematical models may assist in the deeper understanding of self-healing processes via bacteria. This paper presents theoretically oriented research dealing with the application of specific bacteria (B. pseudofirmus) capable of transforming available nutrients into calcite, allowing for the cracks on the surfaces of cementitious materials to be repaired. One of the principal objectives of this study is to analyze the sensitivity of the bacterial growth curves to the system parameters within the context of the logistic model in the Monod approach. Analytically calculated growth curves for various parameters (initial inoculation concentration, initial nutrition content, and metabolic activity of bacteria) are compared with experimental data. The proposed methodology may also be applied to analyze the growth of microorganisms of nonbacterial origin (e.g., molds, yeasts).

show abstract

Estimation of Yield, Growth Rate, Decay Rate, and Half-Saturation Coefficients of ASM1 Model Parameters

Cited by 11 publications

References 31 publications

Kinetic characterization of a low-dissolved‑oxygen oxic-anoxic process treating low COD/N tropical wastewater revealed selection of nitrifiers with high substrate affinity

Kinetic characterization of a low-dissolved‑oxygen oxic-anoxic process treating low COD/N tropical wastewater revealed selection of nitrifiers with high substrate affinity

Design and evaluation of advanced automatic control strategies in a total nitrogen removal activated sludge plant

Self-Healing of Cementitious Materials via Bacteria: A Theoretical Study

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