Evaluation of Gas-to-Liquid Transfer with Ceramic Membrane Sparger for H and CO Fermentation.

Hydrogen and carbon dioxide fermentation to methane, called bio-methanation, is a promising way to provide renewable and easy-to-store energy. The main challenge of bio-methanation is the low gas-to-liquid transfer of hydrogen. Gas injection through a porous membrane can be used to obtain microbubbles and high gas-to-liquid transfer.

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

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/m/day) with high CH content (97.

Purification of organic acids by chromatography with strong anionic resins: Investigation of uptake mechanisms.

Bio-based organic acids are promising renewable carbon sources for the chemical industry. However energy-consuming purification processes are used, like distillation or crystallization, to reach high purities required in some applications. That is why preparative chromatography was studied as an alternative separation technique.