Patent ID: 9095786
Filing Date: 2015-08-04
Classification: B01D,B03D,C02F

Abstract:
1. A method of separating two fluids, one lighter in specific gravity than the other, comprising the following steps: providing a single vessel, having a primary separation chamber and a gas flotation chamber and a conduit for providing flow from the primary separation chamber to the gas flotation chamber; flowing fluids into the primary separation chamber of the vessel; separating free and suspended solids, including free oil, grease and gas, from the fluids by utilizing parallel corrugated plates in the primary separation chamber for defining the distance of rise for a given oil droplet to remove the remaining smaller droplets of free oil and solids from the fluids; flowing the fluids from the primary separation chamber into the gas flotation chamber and inducing gas into the fluids to provide a finely dispersed bubble in the fluids to accelerate the lift necessary for separation of fine oil droplets, emulsified oil droplets, and suspended solids; creating a rotation of gas introduced into the fluids to move the separated fine oil droplets, emulsified oil droplets, and suspended solids to a spillover point in the gas flotation chamber for collection; flowing fluid that has been processed through the vessel through an outlet of the gas flotation chamber; and wherein fluid flow into and through the primary separation chamber flows in a direction counter to the flow of fluid through the gas flotation chamber to the outlet.