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Article Dans Une Revue Bioresource Technology Année : 2021

In-situ biogas upgrading by bio-methanation with an innovative membrane bioreactor combining sludge filtration and H2 injection

Résumé

A bioreactor using membrane technologies was used to demonstrate the feasibility of in-situ bio-methanation coupled to industrial wastewater treatment for biogas upgrading. High biogas productivity (1.7 Nm 3 Biogas/m 3 Bioreactor/day) with high CH4 content (97.9%) was reached. In-situ bio-methanation did not affect the COD removal efficiency of anerobic digestion (>94%). Process resilience has been tested for both substrate overload and H2 intermittence injection. Recovery of high CH4 content after 7 days without H2 injection occurred within few hours. Influence of microbial community has been studied showing that both hydrogenotrophic and homoacetogenic-acetoclastic pathways were involved.
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Dates et versions

hal-03272414 , version 1 (28-06-2021)

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Laure Deschamps, Nabila Imatoukene, Julien Lemaire, Mahamadou Mounkaila, Rayen Filali, et al.. In-situ biogas upgrading by bio-methanation with an innovative membrane bioreactor combining sludge filtration and H2 injection. Bioresource Technology, 2021, 337, pp.125444. ⟨10.1016/j.biortech.2021.125444⟩. ⟨hal-03272414⟩
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