A model for methane production in anaerobic digestion of swine wastewater

Yang, Hongnan; Deng, Liangwei; Liu, Gangjin; Yang, Di; Liu, Yi; Chen, Ziai

doi:10.1016/j.watres.2016.06.060

Cited by 52 publications

(19 citation statements)

References 32 publications

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“…The produced biogas was passed through 3% NaOH solution to capture CO 2 , and the remaining gas was assumed to be methane. This system for measuring methane production is commonly used in these kinds of experiments (Yang et al, 2016). Due to the importance of keeping the homogeneity of the sludge within the reactors, they were subjected to a moderate manual stirring several times per day during some seconds.…”

Section: Experimental Design and Set Upmentioning

confidence: 99%

Use of solid residue from thermal power plant (fly ash) for enhancing sewage sludge anaerobic digestion: Influence of fly ash particle size

Montalvo

Cahn

Borja

et al. 2017

Bioresource Technology

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The influence of fly ash particle size on methane production and anaerobic biodegradability was evaluated. Assays with different fly ash particle sizes (0.8-2.36mm) at a concentration of 50mg/L were ran under mesophilic conditions. In anaerobic processes operating with fly ash, greater removal of both volatile total and suspended solids, chemical oxygen demand (total and soluble) was achieved, with an increase of methane production between 28% and 96% compared to the control reactors. The highest increase occurred at ash particles sizes of 1.0-1.4mm. The metal concentrations in the digestates obtained after anaerobic digestion of sewage sludge are far below those considered as limiting for the use of sludge in soils.

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Section: Experimental Design and Set Upmentioning

confidence: 99%

Use of solid residue from thermal power plant (fly ash) for enhancing sewage sludge anaerobic digestion: Influence of fly ash particle size

Montalvo

Cahn

Borja

et al. 2017

Bioresource Technology

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“…A laboratory-scale anaerobic sequencing batch digester was used by Yang et al (2016) A novel method of two-phase anaerobic digestion where the acid reactor is operated at a low pH of 4.0 followed by an upflow anaerobic sludge bed (UASB)…”

Section: Steam Explosion (Se) and Steam Cracking (Sc)mentioning

confidence: 99%

Food‐Processing Wastes

Frenkel¹,

Cummings²,

Maillacheruvu³

et al. 2017

Water Environment Research

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Literature published in 2016 and early 2017 related to food processing wastes treatment for industrial applications are reviewed. This review is a subsection of the Treatment Systems section of the annual Water Environment Federation literature review and covers the following food processing industries and applications: general, meat and poultry, fruits and vegetables, dairy and beverage, and miscellaneous treatment of food wastes.

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“…In the case of an empirical model, a number of studies have used this model as a tool for predicting the rate of biogas production. Yang et al [10] employed a mathematical model in their study for methane production in an anaerobic digestion of swine wastewater. The study aimed to investigate the influence of organic loading rate (OLR) on methane production.…”

Section: Introductionmentioning

confidence: 99%

“…The determination coefficient (R 2 ) was in the range of 0.97-0.99 for the experimental and predicted data. The model developed by Yang et al [10] was a modification from the Deng model for methane production. Equations ( 1) and (2) show the Deng model and the modified Deng model, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, ADM1 requires a large number of parameters or variables, as well as coefficients which should be calibrated based on the characteristic of the substrate. Some studies have successfully developed a mathematical model to predict biogas production [10,[16][17][18], but none of them used cow dung as a single substrate for methane production in an underground biogas digester. A model proposed by Delgadilo and Hernandez [16] predicted the methane production from organic waste using few input variables (organic matter and volatile fatty acid).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of a Mathematical Model and Validation for Methane Production Using Cow Dung as Substrate in the Underground Biogas Digester

et al. 2021

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South Africa is highly dependent on conventional fuels from non-renewable energy sources such as coal and fossil fuels. The methane from biogas is a renewable energy source for generating electricity using a combined heat and power plant. Therefore, the aim of the study is to develop and validate a mathematical model for predicting methane production in an underground biogas digester. The developed model was able to predict the production of methane gas as separate entity differing from other models. A total of 286 datasets were used as a trained dataset for the model development, and 144 datasets served as test data for the validation of the model, making a total of 430 measured datasets of all the predictors. The determination coefficient (R2) and the p-value of the predicted and calculated methane yield were 0.962 and 0.920, respectively. The high R2 in the present study confirms a good correlation between the model and experimental value. Hence, the model is of significance because it is applicable in predicting the performance of methane production of systems of the same design used in different locations, thereby arriving at the same constant values. From the study, the ambient weather factors (ambient temperature, relative humidity, and global horizontal irradiance) affected the methane production. Additionally, the indoor parameters (pH, gas temperature, slurry bottom and slurry top temperature) impacted on the yield of the methane production because the scaling factors associated with these quantities are non-zero real numbers. Hence, the scope of the study did not consider the volume of the biogas digester as an input parameter to the response.

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A model for methane production in anaerobic digestion of swine wastewater

Cited by 52 publications

References 32 publications

Use of solid residue from thermal power plant (fly ash) for enhancing sewage sludge anaerobic digestion: Influence of fly ash particle size

Use of solid residue from thermal power plant (fly ash) for enhancing sewage sludge anaerobic digestion: Influence of fly ash particle size

Food‐Processing Wastes

Development of a Mathematical Model and Validation for Methane Production Using Cow Dung as Substrate in the Underground Biogas Digester

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