Comparison of the anaerobic digestion at the mesophilic and thermophilic temperature regime of organic wastes from the agribusiness

Streitwieser, Daniela Almeida

doi:10.1016/j.biortech.2017.06.006

Cited by 36 publications

(17 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Enzyme activity increases with increasing temperature and reaches an optimum at 55°C (Heinrich-Heine-Universität, 2018). As a result of increasing reactor temperature, increases in methane content and biogas production as well as degradation rate by increasing temperature were observed within studies (Streitwieser, 2017). The conducted research shows that increase of the operation temperature has a positive effect on the outcomes of the process, as also observed in this study.…”

Section: Effects Of Temperature Changesupporting

confidence: 80%

Innovative operational strategies for biogas plant including temperature and stirring management

2018

View full text Add to dashboard Cite

Finding the optimum operational conditions (mainly temperature and stirring) inside the fermenters is crucial in the field of anaerobic digestion. This study was conducted to contribute to the research area of anaerobic digestion process optimization and is an example for other biogas plants to improve efficiency. The research aimed at finding the optimum operational conditions in a large-scale biogas plant located in Lower Saxony, Germany, which started operation in 2011. The optimization activities were performed by operating the fermenters under different operational conditions: the temperature inside the fermenters ranged between 40°C and 43°C, while applying several stirring scenarios. These changes led to an increase in specific electricity yield of 11.7% and a decrease in internal energy consumption of 10.4%. The total internal energy consumption of the biogas plant was in the range of 6.3–7.2% (the average monthly internal energy consumption was 6.7% in 2013 and 6.0% in 2014) from their own production, and 28% of this energy consumption was used by the stirrers before optimization. Therefore, finding the optimum operational conditions leads to high energy harvesting and lower internal energy consumption.

show abstract

Section: Effects Of Temperature Changesupporting

confidence: 80%

Innovative operational strategies for biogas plant including temperature and stirring management

2018

View full text Add to dashboard Cite

show abstract

“…37 • C is the optimum temperature for most of the mesophilic enzymes [64,66,67]. According to Streitwieser [68], the thermophilic range is a better option for easily degradable substrates, which leads to an increase in biogas production as well as an increase in the reaction rates. Besides, shorter start-up time is needed for the new operating biogas plants at thermophilic conditions [69][70][71].…”

Section: Process Temperaturementioning

confidence: 99%

Operational Parameters of Biogas Plants: A Review and Evaluation Study

et al. 2020

View full text Add to dashboard Cite

The biogas production technology has improved over the last years for the aim of reducing the costs of the process, increasing the biogas yields, and minimizing the greenhouse gas emissions. To obtain a stable and efficient biogas production, there are several design considerations and operational parameters to be taken into account. Besides, adapting the process to unanticipated conditions can be achieved by adequate monitoring of various operational parameters. This paper reviews the research that has been conducted over the last years. This review paper summarizes the developments in biogas design and operation, while highlighting the main factors that affect the efficiency of the anaerobic digestion process. The study’s outcomes revealed that the optimum operational values of the main parameters may vary from one biogas plant to another. Additionally, the negative conditions that should be avoided while operating a biogas plant were identified.

show abstract

“…Therefore, in [13] optimal conditions for anaerobic digestion at thermophilic temperatures could be determined. Many studies confirm the increasing efficiency and degradation rate of the process with rising temperatures [14][15][16].…”

Section: Introductionmentioning

confidence: 88%

Effect of Different Operating Temperatures on the Biological Hydrogen Methanation in Trickle Bed Reactors

Lemmer

Ullrich

2018

Energies

View full text Add to dashboard Cite

To improve the reactor efficiency, this study investigated the influence of temperature on the biological hydrogen methanation (BHM) in trickle-bed reactors (TBR). Rising temperatures increase the metabolic activity of methanogenic microorganisms, thus leading to higher reactor specific methane formation rates (MFR). In order to quantify the potential for improved performance, experiments with four different operating temperatures ranging from 40 to 55 • C were carried out. Methane content increased from 88.29 ± 2.12 vol % at 40 • C to 94.99 ± 0.81 vol % at 55 • C with a stable biological process. Furthermore, a reactor specific methane formation rate (MFR) of up to 8.85 ± 0.45 m 3 m −3 d −1 was achieved. It could be shown that the microorganisms were able to adapt to higher temperatures within hours. The tests showed that TBR performance with regard to BHM can be significantly increased by increasing the operating temperature.

show abstract

Comparison of the anaerobic digestion at the mesophilic and thermophilic temperature regime of organic wastes from the agribusiness

Cited by 36 publications

References 44 publications

Innovative operational strategies for biogas plant including temperature and stirring management

Innovative operational strategies for biogas plant including temperature and stirring management

Operational Parameters of Biogas Plants: A Review and Evaluation Study

Effect of Different Operating Temperatures on the Biological Hydrogen Methanation in Trickle Bed Reactors

Contact Info

Product

Resources

About