tank will be treated by a process of reverse osmosis or filtration in order to concentrate the different solutes dissolved during bubbling into a brine including the co2 dissolved in the form of h2co3 numerous water treatment processes already exist and can be used desalting water purification distillation and so on the water pumped in a laminar flow directly or optionally after filtration is degassed by subjecting it to ultrasound or to a high vacuum or to rapid heating a combination of these three treatments can be applied simultaneously or sequentially preferably the water will be degassed by the action of the vacuum and the ultrasound the gases resulting from the degassing consist primarily of co2 and optionally nox and hsx the co2 may be reintroduced in a gasification cycle by being reintroduced into the cyclone gasification reactor after heating if it is pure enough the gas mixture obtained may optionally be subjected to a liquid gas phase reduction at the interface of a plasma created by an electric arc between two hollow or porous carbon electrodes during this reduction phase nox and hsx will be reduced to sulfur or n2 or into compounds with an intermediate oxidation number this reduction may be completed by an electric glidarc type treatment the carbon electrodes used for these reductions may contain additives such as aluminum magnesium or any other reducing metal for example in the form of a powder highly agglomerated with carbon particles these metals promote the production of co and h2 by reacting with water co2 or the carbon of the electrodes the metal oxides generated by the oxidation reduction reactions are regenerated by.