Fundamental Research Division
The DRF at the CEA assemble approximately 6,000 scientists since January 2016.
European ＆ international partnerships | Microalgae | Bioremediation | Recovery of CO2
The idea is to ‘hit two targets with one shot’; that is, to produce
energy while decontaminating industrial sites. But how? By introducing
certain effluents, such as carbon dioxide (CO2) or nitrogen oxides
(NOx) in the microalgae culture media. Large-scale production of microalgae
could thus absorb 1.83 tons of CO2 and around 150 kg of NOx per ton
of biomass produced. Nitric oxide (NO) is a powerful greenhouse gas, notably
responsible for acid rain. It is also a signaling molecule in living organisms:
in animals, NO is a vasodilator and plays a role in the immune response; in
plants, NO is involved in the responses to oxidative stress and pathogens. This
molecule is also metabolized by microalgae during their growth, by mechanisms
that remain largely unknown.
A joint symposium held in Halifax, Canada in October 2012 has already resulted
in the implementation of a first collaborative project. The French and
Canadian researchers plan to study the effect of NOx on the growth and
metabolism of microalgae. After having determined toxicity thresholds in
several species, the scientists will analyze the assimilative capacity of
microalgae to those doses that they tolerate. They will use molecular,
metabolomic and physiological approaches to study the mechanisms involved.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.