oxygen injection in flotation basin of the process of removal of polluting substances in watercourses

摘要

OXYGEN INJECTION IN A FLOTATION BASIN OF THE REMOVAL PROCESS OF POLLUTING SUBSTANCES IN WATER COURSES. Of a kind comprised of the steps of: rapidly flocculating or coagulating material (1) by applying to a portion of the watercourse to be treated; allow a flocculation basin from this portion of the sun to flow along the watercourse, so that downstream particulate aggregation occurs, defining larger flocs. Oxygen injection consists of subjecting these larger and denser aggregate particles downstream of the watercourse to at least one dissolution step and injection of oxygen from a concentration unit (5) and directed to units of oxygen. dissolving by pressurized mixers (3), forming a water / oxygen mixture to be injected into sections (6) of the watercourse, causing a flotation of said aggregate particles; allow from this stretch a flotation basin to emerge along the watercourse, so that downstream there will be an agglomeration of the floated material, whose flotated and agglomerated material verified downstream on the surface and near the banks of the watercourse. removed by scraping the surface of the watercourse.