초록 ▼

Raw wastewater to be clarified is routed in an apparatus which directs the wastewater in an improved upwardly directed vortex path that is above and open to a source of dense microbubbles. Impurities within the wastewater are urged toward the periphery of the vortex and coagulate, while the bubbles

Raw wastewater to be clarified is routed in an apparatus which directs the wastewater in an improved upwardly directed vortex path that is above and open to a source of dense microbubbles. Impurities within the wastewater are urged toward the periphery of the vortex and coagulate, while the bubbles tend to pass up through a central core of the vortex. The coagulated impurities and the bubbles approach the outlet of the vortex apparatus, whereupon a venturi-like effect is developed to accomplish an improved contacting of the coagulated impurities and the bubbles to form buoyant agglomerates. The wastewater and buoyant agglomerates flow together through the vortex outlet, after which the buoyant agglomerates may be permitted to float to the surface of the wastewater in a separate chamber.

대표청구항 ▼

An improved vortex coagulation method for wastewater clarification, comprising the steps of: tangentially introducing a flow of wastewater having impurities into the bottom of a vortex column having a vertical axis; flowing said wastewater flow in an upward spiral through said vortex column; urging

An improved vortex coagulation method for wastewater clarification, comprising the steps of: tangentially introducing a flow of wastewater having impurities into the bottom of a vortex column having a vertical axis; flowing said wastewater flow in an upward spiral through said vortex column; urging the impurities toward the periphery of the vortex column; coagulating impurities near the periphery; supplying a dense zone of bubbles below said vortex column; passing said bubbles upwardly through said vortex column, said bubble passage being concentrated in a central core lying along said axis; establishing a tangential outflow path for the water, bubbles and impurities; and contacting said bubbles with said impurities to form buoyant agglomerates of bubbles and impurities, said contacting being in a venturi-like manner within said outflow path. An improved vortex coagulation apparatus for wastewater clarification comprising: a bubble supply compartment; a means for introducing a supplemental water supply into the compartment; a cylindrical chamber having a substantially vertical axis, said chamber being mounted above and in communication with said compartment; an inlet in tangential communication with the peripheral bottom of said chamber; and an outlet in tangential communication with the peripheral top of said chamber.