ES410747A1 - Improvements in the wastewater treatment. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

"Improvements in the treatment of wastewater" which initially comprises a phase of roughing or retention and decanting of solid waste and heavy granular matter in a shaken channel equipped with an inlet grid that are characterized by the fact that between the intake grid and the A turbine of vertical axis surrounded by an inverted truncated cone shape provided with regularly distributed interior longitudinal fins is located, the impeller of said turbine being slightly higher than the lower mouth of the enclosure and submerged in the liquid of the turbine. so that the level in rest state of this is a short distance from its upper face, while the edge of the upper and larger diameter mouth of the envelope is above said level, the aforementioned impeller being of hollow shape, with inner radial blades, intake mouth on its underside, lateral centrifugal projection and endow With ventilation openings in its upper face intended to suck air due to the depression created inside it, so that when it rotates it produces, in addition to an active whipping, oxygenation, of the sucked water, which is projected against the lateral envelope that it directs it upwards to its upper mouth where a part is poured into the de-sanding channel and leaves towards the grid for its recirculation. (Machine-translation by Google Translate, not legally binding)