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Otv (Omnium De Traitements Et De Valorisation)

Omnium De Traitements Et De Valorisation (Otv)

Omnium De Traitement Et De Valorrsation (Otv) S.a.

Otv Omnium De Trajtements Et De Valorisation S.a.

Michel Faivre

Marie-Marguerite Bourbigot

Jacques Sibony

Nathalie Martin

Pierre Cote

Gilbert Desbos

Annie Tazi-Pain

Annie Tazy-Pain

Catherine Moulin

Vincent Boisdon

Pierre Corsin

This invention relates to a plant for the biological treatment of water to produce drinking water, characterized in that it comprises at least one biological reactor (7) provided with injection means (9) for injecting oxygenated gas, at least one separation membrane (11 for microfiltration or ultrafiltration immersed in said reactor (7), and addition means (10) for adding to said reactor (7) at least one pulverulent material in suspension serving as a support for a biomass, said pulverulent material possibly being a reactive powder which also allows fixation of the substrate required by said biomass.

Installation for biological water treatment for the production of

Unit for the treatment of water by ozonization, and a corresponding

A water-treatment installation, notably with a view to making water potable, includes a reactor demarcating at least one treatment chamber, the reactor comprising a conveying assembly to convey the water to be treated into the chamber; a removing assembly for removing the floated pollutants and a removing assembly for removing the decanted pollutants; a plurality of filtration membranes laid out within the chamber and submerged in the water to be treated; a demarcating assembly for demarcating a filtration zone around each of the membranes; carrying and circulating member guiding a current of water to be treated in the filtration zone along a preferred direction, the carrying and circulating member including ozone-injection assembly; and a recovering assembly recovering the permeate at an outlet of the filtration membranes.

Installation for making water potable with submerged filtering membranes

Surface water processing installation with safety barrier

An installation for the treatment of a flow of liquids, notably potable water or effluents, installation of the type wherein the liquids are put into contact with a treatment gas during a pre-determined treatment period, the installation comprising means for the addition of the treatment gas to the flow of liquids so as to form a homogeneous two-phase treatment medium, means for the forced dissolution of the treatment gas in the flow of liquids to be treated cooperating with means for the degassing of the two-phase treatment medium so as to produce a monophase treatment medium and contactor means providing for a plug flow of the degassed monophase treatment medium during the pre-determined treatment period. A particular exemplary application of the installation is to the ozonation of liquids.

Installation for the treatment of flows of liquids with monophase

An installation for the filtration and cleansing of liquids, notably water, of the type having a loop for the circulation of the water to be treated, including at least one tangential filtration membrane, comprising a new tangential membrane filtration installation, with ozone injection, enabling the surface, internal and chemical clogging of the membrane to be restricted. The installation includes means for the addition of an oxidizing gas to the liquid to be treated, in the loop upstream of the membrane, so as to form microbubbles of said gas with a size such that they create turbulence in the liquid at the membrane and this turbulence, combined with the phenomenon of oxidation, restricts the clogging of said membrane and leads to an improvement in the flow rate and in the physical/chemical qualities of the filtrate. If necessary, it includes means for the injecting of chemical reagents and/or absorbents into the filtration loop.

Water treatment installation for a tangential filtration loop

Apparatus for treating water by gaseous diffusion and flotation comprising a single reactor which is separated into at least two compartments. One compartment is used for gas transfer with a pressurized gas diffuser flushed by a liquid current wherein water to be treated is introduced downwardly. The other compartment is in communication with the first compartment by means of an orifice whose opening diameter and orientation are controlled.

Apparatus for gas transfer and flotation for treating water to be

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Acheres, France

Michel Faivre