Patent ID: 7651614
Filing Date: 2010-01-26
Classification: C02F

Abstract:
1. A method for treating wastewater including biological contaminants comprising: separating solid particles from raw wastewater to produce a wastewater stream; introducing the wastewater stream to a fluid treatment system, the fluid treatment system comprising a first vortex nozzle unit, a second vortex nozzle unit positioned in substantially opposed relation to the first vortex nozzle unit, and a manifold configured to divide the wastewater stream into a first wastewater fluid flow and a second wastewater fluid flow; flowing the first wastewater fluid flow through the first vortex nozzle unit and flowing the second wastewater fluid flow through the second vortex nozzle unit so that a first rotating wastewater fluid flow exiting the first vortex nozzle unit impinges on a second rotating wastewater fluid flow exiting the second vortex nozzle unit to produce a contacted wastewater stream, wherein the opposing first and second vortex nozzles are arranged such that collision of the first rotating wastewater fluid flow exiting first vortex nozzle unit with the second rotating wastewater fluid flow exiting the second vortex nozzle unit destroys at least a portion of the biological contaminants in the rotating wastewater fluid flows; flowing the contacted wastewater stream produced by the impingement of the first rotating wastewater fluid flow with the second rotating wastewater fluid flow to an outlet of the fluid treatment system; and flowing the contacted wastewater stream produced by the impingement of the first rotating wastewater fluid flow with the second rotating wastewater fluid flow from the outlet of the fluid treatment system through a secondary treatment system comprising at least one aeration unit and at least one settling unit, wherein the at least one aeration unit and the at least one settling unit of the secondary treatment system are configured to remove at least a portion of the organic material from the contacted wastewater stream produced by the impingement of the first rotating wastewater fluid flow with the second rotating wastewater fluid flow from the outlet of the fluid treatment system.