IMPROVEMENTS TO SOLID-LIQUID SEPARATING EQUIPMENT IN PARTICULAR FOR BIOLOGICAL PURIFICATION OF WASTE WATER

摘要

The invention concerns an equipment for separating a solid/liquid suspension by filtering, in particular biological or physico-chemical purification of liquor sludge, on a textile or membrane filtering material. The invention is characterised in that it consists of at least a plate (14) immersed in the suspension to be treated, said plate being inclined relative to the vertical and made in the form of a recessed plate comprising one or several sections whereof only the lower surface (16) is covered with the filtering support (14) the upper surface being solid, said recessed plate internal enclosures being connected to a manifold or flowline (20) collecting the treated water and gas sweeping means (24; 30) are arranged beneath said plate (14), such that the gas bubbles emitted by said sweeping means flow along the filtering support.