Methanization and greenhouse gases
CO2 reuse from anaerobic digestion
Quizzed article REF: G1818 V1
Methanization and greenhouse gases
CO2 reuse from anaerobic digestion

Authors : Laurent DUMERGUES, Christine PEYRELASSE

Publication date: August 10, 2022, Review date: January 24, 2024 | Lire en français

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2. Methanization and greenhouse gases

2.1 Methanization principle

Methanization is an anaerobic digestion process used to convert organic matter into biogas and digestate (figure 4 ). It is carried out by a consortium of micro-organisms under anaerobic conditions (– 300 to – 330 mV/ENH), at a pH close to neutrality. Different temperature ranges can be applied, from 52 to 56°C in thermophilic mode, 35 to 40°C in mesophilic mode and 10 to 20°C in psychrophilic mode.

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