Green electricity-driven simultaneous ammonia recovery and in-situ upcycling for microbial protein production
نویسندگان
چکیده
• An electricity-driven microbial electrochemical recovery conversion cell was developed. Effects of applied voltage and initial ammonium concentration were investigated. CO 2 wasted nitrogen from real waste streams upcycled as protein in the system. The system showed a high energy efficiency with additional environmental benefits. Currently, hydrogen-oxidizing bacteria (HOB) based power-to-protein is promising approach to produce alternative (MP), however, source used either derived commercial products or firstly recovered then diluted for HOB growth. In present study, simultaneous wastewater in-situ utilization green MP (derived Cupriavidus necator 335) production successfully demonstrated using (MERC). 0.41 ? 0.82 g/L dried biomass (protein content 49 63%) yielded 36 h power supply 3, 4, 5 V. C. 335 could grow MERC receiving broad range (0.05 8 g N/L) highest 0.9 54%) achieved at N/L. 2.69 containing 57% obtained 120 an 1 L N-NH 4 + . Applied voltages concentrations minor impact on amino acid profile. Furthermore, tested (e. g., municipal wastewater, digestate) 0.45 1.22 biomass/L 52 62%) harvested. characteristics conductivity) significantly affect performances. harvested quality profile implied potential substituting traditional plant/animal-based protein.
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ژورنال
عنوان ژورنال: Chemical Engineering Journal
سال: 2022
ISSN: ['1873-3212', '1385-8947']
DOI: https://doi.org/10.1016/j.cej.2021.132890