Sludge treatment device comprises dry layers with a draining layer and a porous fabric layers extended to the draining layer and placed between the sludge and the draining layer

The device further comprises: a mechanical device comprising roller (30) on which the fabric (23) is rolled and transformed into the draining layer; a driving medium for roller rotation; a scraper to recover the dried sludge induced by the fabric for displacement of the sludge; a greenhouse (60), which extends above the dry layer (20); a ventilator for generating air circulation around the sludge; a supplier which brings the liquid sludge to cover the fabric with sludge; and a flocculating element to flocculates the sludge before covering the fabric with sludge. The fabric layers (23, 24) are fixed on the draining layer (21, 22). The water with the sludge (1) percolates into the draining layer and the porous layer allows water from the sludge flow out through the fabric. An independent claim is included for sludge treatment using the above device. L'invention concerne une installation de traitement de boues comprenant un lit de séchage (20) destiné à être recouvert de boues à traiter (1), le lit de séchage (20) comprenant une couche drainante (21, 22) à travers laquelle de l'eau issue des boues (1 ) peut percoler, caractérisée en ce que le lit de séchage (20) comprend également une première toile (24) s'étendant sur la couche drainante (21, 22) et destinée à être disposée entre les boues à traiter (1 ) et la couche drainante (20).L'invention se rapporte également à un procédé de traitement des boues associé.