Societe Lyonnaise Des Eaux Et De L'eclairage

Societe Lyonnaise Des Eaux Et De L'enclairage

Joel Mallevialle

Michel Roustan

Jean-Pierre Duguet

Louis Cognet

Eric Brodard

Francois Matray

Christian Argoud

An apparatus for dissolving ozone in a fluid includes a vertically extending closed chamber, and at least one tube extending vertically into the chamber and having a lower end opening into the chamber. Fluid to be treated and ozonized gas is introduced into the upper end of the tube, such that the fluid and gas pass downwardly through the tube, are discharged from the lower end of the tube into a lower end of the chamber, and then passed upwardly through the chamber, whereby ozone dissolves in the fluid. Structures are provided at the upper end of the chamber for discharging fluid having dissolved therein the ozone and excess gas.

Apparatus for dissolving ozone in a fluid

An apparatus for carrying out a liquid-liquid extraction process by co-current contact between an extraction liquid and a liquid from which impurities are to be extracted includes a mixing compartment in the form of a vertical column having an open lower end and equipped in its interior and substantially throughout its length with a rotary element having surfaces extending perpendicularly or obliquely to the axis of the element. The open lower end of the column extends into a settling compartment in the form of a leak-proof container provided with means for determining the level of the extraction liquid in the container. The extraction liquid is recycled from the container by being converted to a gas and then reintroduced into the column. Compressed air is controlled electronically to supply make-up extraction liquid and any necessary reagents into the settling container to ensure that the level of the extraction liquid is maintained constant.

Apparatus for liquid-liquid extraction using a mixing/settling process

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Carrieres sur Seine, France

Joel Mallevialle