Patent ID: 8905242

Claim:
Incineration byproduct processing system comprising: a first screen for separation of particles having dimensions greater than approximately three inches from the incineration byproduct; a wash plant for accepting ash and particles having dimensions less than approximately three inches from the incineration byproduct, a basin located at a bottom of the wash plant and one or more sand screws in the basin operative to collect and discharge sand from a bottom of the basin, and one or more adjustable weir plates in the basin; a water supply system fluidly connected to the wash plant, the water supply system including a water storage tank; first, second and third wash plant screens in the wash plant, the first wash plant screen of the wash plant configured to separate particles having dimensions greater than approximately one inch from the incineration byproduct in the wash plant; the second wash plant screen of the wash plant configured to separate particles having dimensions greater than approximately one-half inch from the incineration byproduct in the wash plant; the third wash plant screen of the wash plant configured to separate fine particle fraction from the incineration byproduct; a discharge from the wash plant configured to discharge incineration byproduct particles having dimensions less than approximate three inches and dimensions greater than openings in the third wash plant screen, and a thickener fluidly connected to the wash plant to receive byproduct combined with water from the wash plant, the thickener also fluidly connected to a water supply to receive water containing pH adjustment, coagulant and flocculant for contact with the incineration byproduct in the thickener, the thickener having a discharge for discharging incineration byproduct to a dewatering unit.