| 摘要 |
Porous hydrophilic substrate, and method of obtaining it. A porous hydrophilic substrate suitable for incorporating nutrients and a process for obtaining it, obtained from materials of an organic and mineral nature, especially ordinary clays. This substrate is capable of incorporating nutrients and/or materials which can be stored for subsequent progressive release. Furthermore, by changing its geometry, an expanded inert can be obtained for use in construction. The invention also provides for the treatment of purifier sludge to provide a paste suitable for obtaining the substrate. For application in agriculture, forestry, the regeneration of deteriorated areas and in construction as an expanded inert.
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