Biological waste treatment plant
AssigneeSCT Sorain Cecchini Tecno S.R.L.
InventorPietro Carrera
Life of this patent
Estimating the term…
Abstract
A plant for the biological treatment of solid organic waste, where the organic mass is fed into a treatment tank with a horizontal bottom, while screw propellers, suspended from a sliding bridge parallel to tank base, operate immersed in the matter and whose axis is inclined according to a convenient angle, preferably between 5° and 50°, compared to its vertical, moving the organic matter from the bottom upwards and from the inflowing side of the treatment tank to the outflowing one, continuously immersed in a direction which is at right angles compared to the direction of movement of the organic mass and remaining continuously active, that is without any idle return of the screw propellers across the treatment tank after each process cycle.
Claims10
A plant for the biological treatment of solid organic waste, comprising in combination:
- a generally rectangular shaped treatment tank having a horizontal bottom with a narrower width and a longer length and vertically oriented side walls for receiving and treating a body of said organic waste,
- a trolley bridge extending across the width of the tank carrying a trolley movable back and forth along the length of the tank,
- feeding means including a conveying means for feeding said organic waste into a first side of the tank along the length of the tank,
- removal means carried by said trolley bridge for removing treated organic waste along the length of the tank from an opposite side of the tank,
- at least one screw propeller acting as stirring and pushing means carried by said trolley and movable back and forth along the trolley bridge across the width of the tank,
- programmed movement control means for moving the trolley and at least one screw propeller in a controlled movement pattern with the at least one screw propeller immersed in said body of organic waste thereby to plow in entirety the organic waste in the tank, and
- aerating means disposed upon the bottom of the tank for introducing air into the organic waste during movement of the trolley bridge.
Dependencies are inferred from the claim text.