Patent ID: 6802978
Filing Date: 2004-10-12
Classification: C02F,Y02W

Abstract:
A method for environment recovery in an urban region having a canalized domestic watercourse and sewer system comprising the steps of:causing the formation of a flocculating basin to be formed from the canalized domestic watercourse and sewer system so as to cause the downstream aggregation of particles in suspension, defining flakes of greater dimensions; submitting those aggregated particles and particles of greater dimensions, partially retained downstream of the watercourse to successive stages of dissolution and air injection, causing a floatation of such aggregated particles; causing the formation of a floatation basin from the section alongside the watercourse, so as to allow the occurrence of a downstream aggregation of the floating material on the surface and alongside the watercourse margins, defining the concentration of floating material in a restricted area of the surface of the watercourse; and promoting the removal of the floating material retained in this surface area of the canalized domestic watercourse and sewer system; aerating the canalized watercourse until it reaches a secondary watercourse defined by an urban secondary streamlet of effluent; submitting the secondary watercourse to a medium process for removal polluting materials and/or substances; aerating the secondary watercourse until it reaches a riverbed in the urban region; submitting the urban riverbed to successive and intercalated aeration stages alongside its course, with macro processes of removing polluting materials and/or substances throughout the urban region of the effluent before it reaches a hydro receiving body.