Patent ID: 9650268
Date: 2017-05-16
CPC Classifications: B01D,C02F

Claim:
1. A water treatment device comprising a mixing tank provided with an inlet path for an effluent to be treated, a source of stirring capable of inducing turbulent stirring in a given volume of the tank, an extraction path enabling the discharge of sludge, and a treated effluent extraction path, further comprising, above the inlet path for effluent to be treated and above and adjacent to the given volume, but below the outlet path for a treated effluent, a settling structure comprising a plurality of flow channels extending from a bottom of the settling structure to a top of the settling structure; the flow channels assuming a zig-zag configuration such that no particle can pass through the settling structure along a rectilinear path; wherein the flow channels include a plurality of rectilinear sections wherein a plurality of the rectilinear sections assume an acute non-zero inclination with respect to a horizontal plane; wherein the flow channels are contiguous and formed by parallel plates and a plurality of parallel strips and wherein the parallel plates and the parallel strips form polygonal cross-sections; wherein the settling structure comprises a plurality of at least two layers and wherein each layer constitutes a network of contiguous flow channels; and wherein a fluid stream moving from the top of the settling structure forms the treated effluent.