Patent ID: 7854791
Filing Date: 2010-12-21
Classification: B01D

Abstract:
1. A method of generating an aqueous froth from an aqueous filtering solution simultaneously with numerous micro-droplets from said aqueous filtering solution, said micro-droplets having various radii for use in an aqueous froth filtering system which removes contaminants from a contaminated air stream moving along a flow path, comprising the steps: providing a plurality of 3 mesh assemblies, said mesh assemblies being spaced apart said flow path of said contaminated air stream, saturating said plurality of mesh assemblies with said aqueous filtering solution, passing said contaminated air stream through said plurality of mesh assemblies, forming an aqueous froth having a large array of bubbles downstream of each of said saturated mesh assemblies as said contaminated air stream flows through each assembly, and causing at least some of said bubbles to burst and reform 2 times as said contaminated air stream passes through said 3 saturated mesh assemblies, said bursting bubbles forming said numerous micro-droplets having various radii, wherein each reforming bubble encapsulates a discrete volume of said contaminated air stream, a discrete number of said filtering solution micro-droplets, and a discrete volume of filtering solution vapor.