Abstract: The invention relates to a filter element comprising a support with an outside surface and at least three channels in the support. The channels comprise a peripheral wall directed towards the outside surface, the distance between the peripheral wall and the outside surface reducing on each side of the middle of the peripheral wall. The element has the advantage of improved strength when subject to severe conditions of use.

Abstract: The invention relates to a porous monolith support (50) for a filtration element, having a tubular shape and an essentially-constant cross-section along the axis thereof (X-X). The inventive support comprises a plurality of channels (62, 64), the surfaces of which are intended to be covered with filtration membranes. According to the invention, the cross-sections of the channels are distributed inside the cross-section of the support and said channels (62, 64) are only separated from the periphery of the support by a single lateral wall (56) of the support. Moreover, all of the channels of the support are distributed as follows: in a first group of oblong radial channels (62) which are disposed such that the length thereof extends in an essentially-radial manner, and in a second group of oblong lateral channels (64) which are positioned between the radial channels (62) and which are disposed such that the length thereof extends essentially parallel to the periphery of the support.

Abstract: The invention concerns an inorganic nanofiltration membrane with a detachment threshold between 100 and 200 daltons and comprising: a multichannel ceramic monolith support consisting of a mixture of Al2O3 and of TiO2, a microfiltration membrane separating layer, an ultrafiltration membrane separating layer, preferably consisting of ZrO2, a nanofiltration membrane separating layer, preferably consisting of ZrO2, and obtained by a sol-gel type method. This inorganic nanofiltration membrane is designed for use in the sugar industry, more particularly for treating saline effluents derived from the regeneration of ion exchanging resins used if the refining of cane sugar.

Abstract: The invention concerns an inorganic nanofiltration membrane with a detachment threshold between 100 and 200 daltons and comprising: a multichannel ceramic monolith support consisting of a mixture of Al2O3 and of TiO2, a microfiltration membrane separating layer, an ultrafiltration membrane separating layer, preferably consisting of ZrO2, a nanofiltration membrane separating layer, preferably consisting of ZrO2, and obtained by a sol-gel type method. This inorganic nanofiltration membrane is designed for use in the sugar industry, more particularly for treating saline effluents derived from the regeneration of ion exchanging resins used if the refining of cane sugar.

Abstract: The present invention relates to a porous monolithic support (1) for filtration membranes containing channels (2, 3, 4), the internal surface of which supports the membranes (14, 15, 16), characterized in that the said support contains at least two channels, all of said channels having:(a) substantially similar sections,(b) interchannel partitions (5, 6, 7) and partitions with the outside of the support (8, 9, 10) of substantially constant thickness and(c) a partition with the outside of the support of substantially the same surface area.Application to the tangential filtration of viscous fluids and/or of fluids containing solid materials.