Improving the growth of Spirulina in CO absorption and microalgae conversion (CAMC) system through mixotrophic cultivation: Reveal of metabolomics.

Mixotrophic cultivation was proposed to enhance the biomass and carbon sequestration efficiency of Spirulina in CO absorption and microalgae conversion (CAMC) system, and the underlying metabolic mechanism was also explored. The result showed that mixotrophic enhanced the performance of CAMC system, the maximum biomass, total carbon conversion capacity and efficiency was obtained at 0.5 g/L acetate group, which was 60.

Performance intensification of CO absorption and microalgae conversion (CAMC) hybrid system via low temperature plasma (LTP) treatment.

CO absorption and microalgae conversion (CAMC) hybrid system is a promising alternative for simultaneous carbon capture and utilization. It can not only overcome the challenge of high energy consumption solvent thermal regeneration in chemical CO absorption, but also enhance the carbon conversion efficiency in biological conversion process. However, the discordance between CO absorption and bio-conversion rate has become the key to limiting the development of CAMC system.