| 摘要 |
<p>A multilayer porous structure, particularly for the separation of liquid and solid phases and/or dispersing liquid or gas, especially for the treatment of waste water and sludges. The structure comprises at least one supporting layer and at least one active layer this latter consisting of chemically inactive inorganic granular material and binding material, the pore size of the active layer being smaller than that of the supporting layer. At least on the surface of the grains constituting the active layer there is provided a hydrophobic binding material formed by silicone resin and/or bisphenol-A based epoxy resin. The regenerating of the structure can be carried out by merely flushing its surface.</p> |
