2022
DOI: 10.1016/j.heliyon.2022.e11174
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Research trends and strategies for the improvement of anaerobic digestion of food waste in psychrophilic temperatures conditions

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Cited by 18 publications
(10 citation statements)
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“…However, psychrophilic temperatures generally slow down the metabolic activity of anaerobic microorganisms. This can result in a prolonged retention time for organic matter in the digester and lead to a decrease in methane yield per unit of organic matter compared to mesophilic or thermophilic conditions [ 56 , 57 ].…”
Section: Resultsmentioning
confidence: 99%
“…However, psychrophilic temperatures generally slow down the metabolic activity of anaerobic microorganisms. This can result in a prolonged retention time for organic matter in the digester and lead to a decrease in methane yield per unit of organic matter compared to mesophilic or thermophilic conditions [ 56 , 57 ].…”
Section: Resultsmentioning
confidence: 99%
“…An increase in viscosity affects the mixing of the substrate with the inoculum and reduces the diffusion of soluble substrates, resulting in limited mass transfer efficiency, thereby decreasing the affinity of microorganisms to utilize the substrate. All of these create flaws in process kinetics, resulting in a slow hydrolysis rate, longer lag phase, and lower CH 4 yields because of the reduced bioavailability of the substrate [48][49][50][51][52].…”
Section: Enhancing Biogas Production In Cold Climatesmentioning
confidence: 99%
“…However, a large amount of energy is required to maintain these conditions to achieve optimum biogas production, especially in cold climates. On the other hand, psychrophilic AD has shown various advantages because it is also capable of degrading organic matter, it does not require extra energy to heat digesters, and ammonia inhibition is normally minimal compared to mesophilic and thermophilic operations [52]. Most household biodigesters in LICs operate at ambient temperature without any heating arrangement.…”
Section: Future Perspectivesmentioning
confidence: 99%
“…Temperature is one of the primary operating parameters [19] (p. 101377), having the ability to influence the rate of microbial growth and degradation of organic matter [20] (p. e11174). Low temperature reduces the performance of the anaerobic digestion process [21] (p. 135808), whereas variable temperature can affect the metabolic activity of methanogens, affecting methane production [22] (p. 128054).…”
Section: Factors Influencing Anaerobic Digestionmentioning
confidence: 99%
“…Likewise, the quality of the compost is influenced by the C/N ratio [38] (p. 37). The recommended C/N ratio for anaerobic degradation is considered 20-30 [27,29], but some researchers think that lower C/N ratios (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) can produce good results [39] (p. 121-181). Since a ratio lower than 20 can inhibit the process, and a ratio greater than 30 leads to a decrease in the amount of biogas [3,40].…”
Section: C/n Ratiomentioning
confidence: 99%