Maya Group

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Vaslin Buscher

Yannick Juhere

Jean-Pierre Dautais

Jean Bonnet

Jean Noel Cronier

The invention relates to a tank () provided with at least one effluent-filling opening and at least two effluent-emptying openings, a bucket capable of tilting between a filling position, in which it can be filled with an incoming effluent through said at least one filling opening, and a discharge position, in which it can discharge the contents thereof through one or more of said emptying openings. According to the invention, the tank () includes means for modifying the position of the bucket (') so as to change the direction thereof or to enable the replacement thereof with another bucket of a different type. It is thus possible to modify the effluent outlet direction by a simple change in the bucket position. It is also possible to replace a bucket with a bucket of a different type. In this way greater versatility of the adaptation to the connection of the tank on the installation site is afforded.

Tank with a tilting bucket

A filtration tank intended to be buried and for containing wastewater in particular, the tank () comprising a casing () having an upper part () and a lower part (), the tank being provided with voussoirs () for reinforcing the structure of the casing () so that it can withstand the pressure exerted by the surrounding material when the tank () is buried and is not completely filled. The voussoirs () bearing against the upper part () and in that the tank () incorporates means (d,) for absorbing the supporting forces of the voussoirs () so as to transfer said forces onto the bottom () of said tank. A tank is thus obtained which withstands being buried without deforming even though it may be only partially filled.

Effluent filtration tank

The present invention concerns a large-volume storage vessel ('), comprising a closure section (&#x2033;) closed by a base (&#x2033;), another closure section (&#x2033;) or a base () and/or and at least one intermediate section (&#x2032;), at least two of the adjoining components being joined to each other by a joining means () comprising two collars () produced on the annular free ends of these two components while being turned facing each other, a plurality of bolts () passing through the two collars () in order to assemble them. According to the invention, the joining means comprises a plurality of washers () mounted on the screws of the bolts () while being interposed between the two collars () in order to form between them an annular volume () for receiving a sealing means (). Through this design, the various components of the vessel are assembled in an economical and nevertheless very effective manner and a space of calibrated width is provided for receiving a sealing means.

Storage tank

A process for treating effluents loaded with organic material, particularly wine-making effluents essential in the form of wash water, comprises pouring the effluents to be treated into a storage basin (1) and actuating a recirculation circuit (2) between this latter and an oxygenation reactor (3) for the effluents, actuating a superoxygenation device (4) when the volume of effluents stored is too great to avoid passing into anaerobic phase, then stopping the superoxygenation and maintaining the recirculation at a minimum level avoiding the passage into anoxia of the effluents, when these latter fulfill certain minimum pollution conditions. The effluents are poured over at least one purification body (5) and the purified effluents are withdrawn, until there is substantially nothing left but residual decantation sludges more or less mineralized, in the storage basin (1). These latter are treated to delay the organic components present and to lead to a substantially inert mineralized sludge.

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Cancale, France

Yannick Juhere