Development, identification and validation of a mathematical model of anaerobic digestion of sewage sludge focusing on H 2 S formation and transfer

Carrera-Chapela, Fabio; Donoso‐Bravo, Andrés; Jeison, David; Díaz, Israel; Gonzalez, J.A.; Ruíz-Filippi, Gonzalo

doi:10.1016/j.bej.2016.03.008

Cited by 27 publications

(14 citation statements)

References 22 publications

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“…indicated that the most influential parameters are the maximum growth rates of both populations, and four of the stoichiometric coefficients – K 1 , K 2 , K 3 and K 6 – are similar to the results presented in the present work. Carrera‐Chapela et al . also indicated that k h is an important parameter that influenced CH 4 production.…”

Section: Resultsmentioning

confidence: 96%

“…The presented model is based on the work of Carrera‐Chapela et al . and Bernard et al ., avoiding the sulfate reducing processes.…”

Section: Methodsmentioning

confidence: 99%

“…In contrast with the model proposed by Carrera‐Chapela et al ., hydrolysis was modeled as a first kinetic function. First‐order kinetics can be applied when the rate limiting factor is the surface of the particulate substrate, and bioavailability or biodegradability related phenomena do not interfere .…”

Section: Methodsmentioning

confidence: 99%

“…Acidogenesis was modeled using Monod kinetics, whereas methanogenic biomass can experiment uncompetitive inhibition for VFA accumulation, which is best described by Haldane kinetics . It was assumed that S 1 also has a nonbiodegradable part, β 1 that S 1 was corrected for .…”

Section: Methodsmentioning

confidence: 99%

“…to evaluate the thermophilic anaerobic digestion of sewage sludge. Later, Carrera‐Chapela et al . added hydrogen sulfide formation and degradation to these reactions in order to simulate the odor trace in wastewater plants.…”

Section: Introductionmentioning

confidence: 99%

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A new and simple kinetic model for assessing the dynamic behavior and simulating the biochemical methane potential (BMP) of sewage sludge in the presence of fly ash

Huiliñir

Montalvo

Borja

2019

J of Chemical Tech & Biotech

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BACKGROUND The modeling of anaerobic digestion of sewage sludge including the effect of fly ash has been studied only scarcely and has focused mainly on the accumulated methane (CH4). The present work was aimed at assessing the complete dynamic behavior of the biochemical methane potential (BMP) of sewage sludge in the presence of fly ash, including both the liquid and gas phases. The model was calibrated and validated for BMPs using eight fly ash concentrations (10, 40, 25, 50 150, 250, 350 and 500 mg L−1). RESULTS The calibration showed that the model fits well with the experimental data, with the values of the parameters falling in the range reported in the literature. The calibrated model was able to describe properly the behavior of soluble chemical oxygen demand (COD) and volatile solids in the liquid phase, with normalized root mean square error (NRMSE) and correlation coefficients (CC) ranging from 0.4052 to 0.2729 and 0.6246 to 0.8172, respectively. For the gas phase, the model was able to represent accurately the daily CH4 production and accumulated CH4, with NRMSE and CC ranging from 0.8915 to 0.07194 and 0.5051 to 0.9736, respectively. CONCLUSIONS The proposed model is robust and valid for all the tested conditions. © 2018 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 96%

“…The presented model is based on the work of Carrera‐Chapela et al . and Bernard et al ., avoiding the sulfate reducing processes.…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A new and simple kinetic model for assessing the dynamic behavior and simulating the biochemical methane potential (BMP) of sewage sludge in the presence of fly ash

Huiliñir

Montalvo

Borja

2019

J of Chemical Tech & Biotech

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A simple unstructured kinetic model for anaerobic treatment of a class of agro‐industrial waste

B.-Arroyo

Méndez‐Acosta²,

García-Sandoval³

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND Dynamic modeling of the anaerobic treatment of agro‐industrial waste can help determine optimal operating conditions to maximize the process performance. For this, it is necessary to select an appropriate model and adapt it to the specific conditions of the substrate. In this work, a simple unstructured kinetic model for the anaerobic treatment of different agro‐industrial waste is proposed. The proposed model considers the three most relevant stages of anaerobic digestion (AD) and can be adapted for the treatment of different substrates, modes of operation (batch or continuous), and/or generated products (VFA or methane production), thus requiring a minimum of process macroscopic measurements. RESULTS To evaluate the scope of the model, two case studies were analyzed: (i) methane production from tequila vinasse and agave hydrolysates, and (ii) volatile fatty acids (VFA) and biogas production from raw cheese whey. For each case, parameter estimations were performed using the Levenberg – Marquardt algorithm, which yielded a simplified model with high determination coefficients (R2 > 0.95). Moreover, the kinetic parameters estimated were consistent physically and statistically. CONCLUSION Numerical results show that the proposed model can satisfactorily describe the dynamic behavior of the key variables of the three types of agro‐industrial waste evaluated. Therefore, the proposed model might be advantageous to determine the conditions that maximize performance without risking process stability. © 2022 Society of Chemical Industry (SCI).

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Development of a Simplified Mathematical Model for Anaerobic Digestion

Loganath

Mazumder

2019

Sustainable Waste Management: Policies and Case Studies

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Development, identification and validation of a mathematical model of anaerobic digestion of sewage sludge focusing on H 2 S formation and transfer

Cited by 27 publications

References 22 publications

A new and simple kinetic model for assessing the dynamic behavior and simulating the biochemical methane potential (BMP) of sewage sludge in the presence of fly ash

A new and simple kinetic model for assessing the dynamic behavior and simulating the biochemical methane potential (BMP) of sewage sludge in the presence of fly ash

A simple unstructured kinetic model for anaerobic treatment of a class of agro‐industrial waste

Development of a Simplified Mathematical Model for Anaerobic Digestion

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