Watertight reservoir designed to perform a metallic fermentation treatment of liquid effluents such as sludge, manure and urban or industrial effluents, or to store a medium in a corrosive atmosphere

摘要

"SEALED RESERVOIR INTENDED TO PERFORM A METAL FERMENTATION TREATMENT OF LIQUID EFFLUENTS SUCH AS NOTABLE MUDS, STERKS AND URBAN OR INDUSTRIAL EFFLUENTS, OR STOCK A MEDIA IN A CORROSIVE ATMOSPHERE". Watertight reservoir designed to carry out a metallic fermentation treatment of liquid effluents such as sludge, manure and urban or industrial effluents, or to store a medium in a corrosive atmosphere, comprising a concrete tray (10), a wrapper (12) of steel or concrete and a watertight and corrosion resistant dome (14), consisting of a double membrane: an inner membrane (15) that delimits with the surface of the liquid effluent contained in said envelope, a watertight enclosure (13) intended to receive the biogas resulting from the metallic fermentation, or the so-called corrosive atmosphere, and an outer membrane (17) that surrounds the inner membrane which, put under pressure, applies a pressure given on the volume of biogas or the corrosive atmosphere, contained within said enclosure (13), said watertight reservoir being characterized by the fact that said inner membrane (15) extends downwards by a skirt (18) whose lower part ior is immersed under the level of liquid effluent contained in the reservoir in order to ensure the tightness of the enclosure (13) delimited above said level, said skirt being fixed, over its entire periphery, under the level of liquid effluent (17), on the inner wall of said envelope (12), by means of a joint (19) applied against said wall, with the help of flat irons (10) of stainless steel that are fixed to the wall.