Systems and methods for separating heavier from lighter materials in mixed auto shredder residue (ASR) from end-of-life vehicles. Vehicles are shredded and the resulting mixed ASR is fed into a system that efficiently segregates heavier (typically metal) from lighter (typically plastic) pieces. The system has an inlet feed chute angled downward to a lower end over a separator tank filled with water. One or more nozzles configured to introduce water at a velocity into the separator tank create a flow of water across the tank to push smaller and lighter particles over an exit weir. Heavier particles sink toward a heavy matter removal conveyor having a lower end positioned within the separator tank so that the heavier particles are transported upward out of the separator tank. The heavy matter removal conveyor may be one or more Archimedes screws, a flat, ribbed or cleated conveyor, or a drag chain.

Systems and methods for separating heavier from lighter materials in mixed auto shredder residue (ASR) from end-of-life vehicles. Vehicles are shredded and the resulting mixed ASR is fed into a system that efficiently segregates heavier (typically metal) from lighter (typically plastic) pieces. The system has an inlet feed chute angled downward to a lower end over a separator tank filled with water. One or more nozzles configured to introduce water at a velocity into the separator tank create a flow of water across the tank to push smaller and lighter particles over an exit weir. Heavier particles sink toward a heavy matter removal conveyor having a lower end positioned within the separator tank so that the heavier particles are transported upward out of the separator tank. The heavy matter removal conveyor may be one or more Archimedes screws, a flat, ribbed or cleated conveyor, or a drag chain.

A recycling plant for gypsum plasterboard is disclosed having three roller crushers and three screens. The rollers can operate at varying rotational speeds and, as a result of the different rotational speeds of the rollers, the plasterboard pieces are comminuted such that the plaster of the paper or the carton is detached.

Ways of obtaining a mineral rich powder from an electronic waste substrate include a shredder configured to receive the electronic waste substrate and process the electronic waste substrate into a plurality of fragments. A mill is provided that includes a container configured to receive the plurality of fragments, the container including a milling media, the mill configured to abrade the plurality of fragments with the milling media to produce a milled product. A separator is provided that is configured to receive the milled product, where the separator is configured to apply a predetermined size selection to the milled product to provide a first output including a plurality of particles and a second output including a plurality of abraded fragments. A skid is coupled to and provides structural support for the shredder, the mill, and the separator.

A method and apparatus for separating components of wet cement. A reclaim gate includes a tumbler flange with a tumbler flange opening. A strainer having strainer openings passes sand, rinse water, and cement slurry while blocking cement aggregates. A fixed plate entraps the strainer in place. The fixed plate has a reclaim aperture aligned with the screen. A rotating turn plate having a matching reclaim aperture is adjacent the fixed plate. A gate actuator retains the turn plate adjacent the fixed plate such that the turn plate can turn to selectively align the turn plate aperture with the fixed plate aperture. In use the aggregates are blocked by the screen, the sand passes through and is filtered; the slurry passes through and is collected and settled. The aggregates, sand, and rinse water can be recovered.

The present invention comprises a method of shredding treated medical waste, cleaning it of all traces of biological gunk, and sorting it into separate components for recycling. To clean biological gunk from materials, all materials must be first shredded into small parts to expose the interior. The cleaning is performed by submerging the gunk coated materials into a caustic solution that breaks down and dissolves the gunk off of the materials. The caustic solution may comprise sodium hydroxide, potassium hydroxide, or a similar chemical, which is highly effective in producing a corrosive chemical that can break down blood, bone marrow, urine, unused medication, food waste, organs, tissues and any other biologic materials. After all of the biological material is removed from the cleaned materials, they are sorted into component materials, such as plastics, metals, rubbers, glass, etc.

A substantially vertical separating column of a waste-product treatment apparatus has a cylindrical body with holes in a lateral surface, inferiorly of a waste-product supply opening. A bladed shaft rotates coaxially inside the cylindrical body. A first discharge mouth in an upper part of the cylindrical body expels a first waste-product recycling fraction, the fraction separated and transported upwards by the bladed shaft. A dilution group along the separating column supplies dilution liquid internally of the cylindrical body. A second discharge mouth in the lower part of the cylindrical body evacuates a second recycling fraction. A discharge conduit and a screw extend parallel to a tangent to the cylindrical body, facilitating extraction of the first recycling fraction to the discharge conduit. The bladed shaft comprises a rotor and, in proximity of the upper end, a plate fixed to a lateral rotor surface and arranged radially.

A substantially vertical separating column of a waste-product treatment apparatus has a cylindrical body with holes in a lateral surface, inferiorly of a waste-product supply opening. A bladed shaft rotates coaxially inside the cylindrical body. A first discharge mouth in an upper part of the cylindrical body expels a first waste-product recycling fraction, the fraction separated and transported upwards by the bladed shaft. A dilution group along the separating column supplies dilution liquid internally of the cylindrical body. A second discharge mouth in the lower part of the cylindrical body evacuates a second recycling fraction. A discharge conduit and a screw extend parallel to a tangent to the cylindrical body, facilitating extraction of the first recycling fraction to the discharge conduit. The bladed shaft comprises a rotor and, in proximity of the upper end, a plate fixed to a lateral rotor surface and arranged radially.

A waste management system for plastic or other material floating on the surface and in the subsurface of a body of water. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is frozen to a temperature at or below minus fifty degrees Fahrenheit, using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon may be recycled or used as fuel by the ship. Water may be used by the ship or returned to the ocean.

A waste management system for plastic or other material floating on the surface and in the subsurface of a body of water. A shredding device will reduce the size of the particles of waste. Ocean water is removed by a drying device. The dried waste material is frozen to a temperature at or below minus fifty degrees Fahrenheit, using liquid nitrogen or other suitable means. The frozen waste material is then pulverized and ground into a powder. The powder may then be sprayed into a gas-filled chamber and heated. Temperature, pressure and humidity are maintained within the chamber for more than one minute. Microwave or other radiation and catalysts may be used to enhance the process of extraction. The processed material is then removed from the chamber. Carbon may be recycled or used as fuel by the ship. Water may be used by the ship or returned to the ocean.