Patent ID: 8051986
Filing Date: 2011-11-08
Classification: B07B,Y10S

Abstract:
1. A process for the treatment of municipal solid waste (MSW) derived biomass material to reduce the level of contaminants therein, comprising the steps of: delivering a stream of mixed, MSW derived biomass material to a first inlet of a vacuum turbo separator operating under negative pressure; enabling said delivered biomass material to fall from said first inlet through a turbo chamber to a first outlet of the separator; inducing a sole air stream to flow from a second inlet of the separator through the turbo chamber to a second outlet of the separator and accelerating said air stream at said turbo chamber; directing said air stream through said falling material in the turbo chamber to entrain said material therein and inducing a vortex of spinning biomass material within the turbo chamber to separate out by centrifugal action denser components of the biomass material; collecting said denser components of the biomass material by said denser components falling in said first outlet to a receiving bay; redirecting lighter remaining entrained biomass material to said second outlet in said air stream; and washing said denser components of the biomass material with said air stream downstream of said vortex to separate out lighter components of the biomass material therein, thereby redirecting said separated out lighter components to said second outlet via the air stream.