Improvement to installation for removing pollutant materials and/or substances from watercourses

Abstract

An improvement to an installation for removing pollutant materials and / or substances from watercourses is applied to an installation of the type comprising: the implantation of a sandbox at the bottom of a section of a watercourse, followed by a floating garbage enclosure arranged substantially across the water course. A certain distance downstream of the garbage enclosure, a metallic structure is suspended across the watercourse, on which automatically actuatable selective injection curtains are mounted at a certain distance from each other, with intercalated homogenising diffusers. These curtains inject coagulants and polymers into the watercourse to be treated. In front of these curtains, a micro air bubble releasing step causes the aggregated particles to float, creating a surface agglomeration of floated material on the watercourse, starting from this flotation section, and the floated material is guided by flexible longitudinal barriers formed by synthetic membranes to a transverse array of dredging modules that extends across the watercourse, facilitating the concentration of the floated material and the removal thereof. This improvement consists in that all the equipment (3, 4, 7) originally mounted across the watercourse can be partially or totally removed from across the watercourse, allowing the watercourse bed to be entirely and / or partially deobstructed.

Description

technical field [0001] The present invention relates to an improved installation for the removal of materials and / or polluting substances contained in polluted waterways, and more particularly to improvements in such systems which allow partial and / or integral movement of instruments relative to the waterway, The movement of the instrument is consistent with the flow rate and the degree of change in the flow rate and does not interfere with the specific state of existence of the waterway. [0002] More specifically, this improved facility is intended to implement the process of removing materials and / or polluting substances contained in water courses more dynamically and with greater compatibility with different types of existing water courses, the same applicant on November 7, 1997 The purpose of the filed patent PI9702430-9. Background technique [0003] As known and mentioned in patent PI9702430-9, waterway pollution and environmental degradation in urban centers is a ph...

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