Biogas upgrading and valorization to single-cell protein in a bioinorganic electrosynthesis system
نویسندگان
چکیده
Valorization of crude biogas to value-added products is the key step toward techno-economic business. Besides, increasing world population puts heavy pressure on food supply and will double protein demand in coming decades. In this context, we propose a bioinorganic electrosynthesis process for integration upgrading edible single-cell production, which could be an alternative solution address these challenges. With inflow 70%CH4/30%CO2 at 50 mL·d−1 applied voltage 3.0 V, concentration 472.04 ± 22.05 mg·L−1 was achieved with “CO2-to-CH4” bioconversion efficiency 92.97 5.61%. Higher CO2 content resulted comparatively lower concentration. The system tested resilient toxic H2S (up 5000 ppm). It possible improve yield three times by scaling up fermenter from 100 mL 1 L, “CH4-to-SCP” fermentation 70.67 2.37%. methanotrophic biomass produced found rich total amino acids mass-content over 62.8%. outcomes study offer new sustainable valorization, are perfectly line United Nations Sustainable Development Goals.
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ژورنال
عنوان ژورنال: Chemical Engineering Journal
سال: 2021
ISSN: ['1873-3212', '1385-8947']
DOI: https://doi.org/10.1016/j.cej.2021.131837