What is the relationship between temperature and methane efficiency?
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Temperature has a significant impact on methane production efficiency in various anaerobic digestion processes. The optimal temperature for high biogas production efficiency was found to be around 35-45 °C in different studies . At temperatures above 25 °C, the methane content in biogas production remained high, while lower temperatures of 20 °C inhibited microbial activity and decreased the performance of the digestion phases . In the case of anaerobic fixed bed reactors, controlling the temperature at around 35 °C resulted in higher COD efficiencies and methane gas production compared to room temperature . Similarly, in microbial electrosynthesis with a mixed-culture biocathode, the optimum temperature for methane production from CO2 reduction was found to be 50 °C . Additionally, in the anaerobic digestion of swine manure, methane production increased with temperature up to 50 °C, but decreased at 55 °C . Overall, moderate temperatures within the range of 35-50 °C were found to be more conducive to efficient methane production.
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34 Citations | The paper found that the highest methane yield and efficiency was observed at a temperature of 45 °C, which was 12.8% and 9.6% higher than at 37 °C and 55 °C, respectively. |
70 Citations | The paper states that methane production efficiency is higher at temperatures above 25 °C, with methane content in biogas production maintained above 50% at these temperatures. |
37 Citations | The paper states that the coulombic efficiency of methane formation in the mixed-culture biocathode microbial electrosynthesis (MES) ranged from 19.15% to 73.94% at different temperatures, indicating that temperature affects methane efficiency. |
01 Nov 2016 | The paper states that the Anaerobic Fixed Bed Reactor (AFBR) needs to be controlled at around 35 °C to produce higher COD efficiencies and methane gas production. |
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