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493:, this gas also dissolves more at increased pressure. The result is that it can be better absorbed by bacteria and archea. In turn, it converts the hydrogen gas with the already dissolved carbon dioxide into additional methane. This combination of techniques was described in detail by Kim et all in 2021, known to be a process called
512:(a form of anaerobic wastewater treatment) at 8 Bar. A biogas was then created with a methane content of 96.7%. A remarkable finding was that the grains in the sludge that are so similar in characteristic of the UASB technique were well preserved. This was because more
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https://bio.libretexts.org/Bookshelves/Microbiology/Microbiology_(Kaiser)/Unit_7%3A_Microbial_Genetics_and_Microbial_Metabolism/17%3A_Bacterial_Growth_and_Energy_Production/17.2%3A_Factors_that_Influence_Bacterial_Growth
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https://bio.libretexts.org/Courses/Manchester_Community_College_(MCC)/Remix_of_Openstax%3AMicrobiology_by_Parker_Schneegurt_et_al/08%3A_Microbial_Growth/8.03%3A_The_Effects_of_pH_on_Microbial_Growth
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have different optimal conditions in which they grow and replicate most rapidly.There is a specific around that optimum in which a specie is able to survive. Factors such as the
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AHPD leverages the higher solubility of carbon dioxide (CO2) at 0.031 mol/L/bar compared to methane (CH4) at 0.0016 mol/L/bar. This difference allows more CO2 to dissolve in the
501:'s hydrogen ladder 5.0, this form of biogas upgrading is at step C. This is considerably higher than applications as fuel in vehicles. These are spread over steps D to G.
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Sangmi Kim (2021). "Production of high-calorific biogas from food waste by integrating two approaches: Autogenerative high-pressure and hydrogen injection".
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398:(H2S) also dissolves more efficiently under pressure. The result is biogas with a higher methane content, which requires less upgrading to meet
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Although the technique is usually used as a fermentation process for thick liquid flows and solid biomass, it can also be applied as anaerobic
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of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be
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R.E.F. Lindeboom (2011). "Autogenerative high pressure digestion: Anaerobic digestion and biogas upgrading in a single step reactor system".
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Prakash (2023). "Upflow anaerobic sludge blanket reactor operation under high pressure for energy-rich biogas production".
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production technique that operates under elevated gas pressure. This pressure is naturally generated by the
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microorganisms have their optimal growth condition at a pressure equal to or above 10 megapascals (99
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Biology 8.3: The Effects of pH and Temperature on Microbial Growth
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conditions such as extreme radiation, temperature, salinity or pressure.
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through the gases they release. First described by R. Lindeboom of
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Biology 17.2: Factors that Influence Bacterial Growth
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Please help to demonstrate the notability of the topic by citing
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A further development of this technique is the addition of
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to it so that it can be listed with similar articles.
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382:High Pressure Anaerobic Digestion (HPAD)
268:"Autogenerative high-pressure digestion"
111:"Autogenerative high-pressure digestion"
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