A waste processing machine for reducing material and having a docking safety system. A cutting assembly on a frame reduces material. A feed system on the frame directs material toward the cutting assembly. A winch assembly includes a line with a line end for securing material, and a driver on the frame to urge the line end toward the driver. A keeper fixed to the frame secures the line end to the frame. A docking subassembly, spaced from the keeper, is movable between: a docked position with the line tensioned against the subassembly between the driver and the line end secured to the keeper; and an undocked position with the line loosened against the subassembly. A control unit allows operation of the feed system when the subassembly is in the docked position, and at least partially limits operation of the feed system when the subassembly is in the undocked position.

An under-sink disposal unit includes a motor, a disposal chamber, and a disposal throat. The disposal throat extends from the disposal chamber to an opening in a top of the disposal unit and defines a passageway through which objects pass into the disposal chamber for grinding. The disposal unit further includes a coil assembly including an arrangement of coils. The arrangement of coils is used to detect the passing of a metallic object in the passageway through the disposal throat. Furthermore, the arrangement of coils includes at least one coil having a loop that is oriented with respect to an axis of the passageway through the disposal throat such that objects passing through the disposal throat into the disposal chamber pass by and proximate to, but do not pass through, such loop. Preferably DC injection braking is used to stop the motor upon detection of a metallic object.

Disposal assemblies and methods for operating disposal assemblies are provided. A disposal assembly includes an inlet conduit defining an inlet passage, and a housing defining a chamber, the chamber in fluid communication with the inlet passage. The disposal assembly further includes a grinding mechanism disposed within the chamber, and a motor connected to the grinding mechanism and operable to drive the grinding mechanism. The disposal assembly further includes a controller in communication with the motor, the controller programmed for selectively and alternately operating the motor in a batch mode and a continuous mode.

A system and method are provided for a food loading station having a disposer that grinds food waste that is located at a facility that processes food waste. A storage tank receives a slurry of food waste and water from the disposer. A controller is connected to the disposer and in communication with a scale that senses a weight of the food waste before grinding by the disposer. A remote module is in communication with the controller, receives the sensed weight of the food waste, and calculates, based on the sensed weight, a total amount of the food waste ground by the disposer and received by the storage tank over a predetermined time period. A terminal associated with the facility and connected to the remote module receives a report that includes diverted food waste data for the predetermined time period corresponding to the total amount of food waste.

The present disclosure provides an apparatus for shredding a pre-defined amount of waste. The apparatus includes a main frame positioned to provide support to the apparatus. Further, the apparatus includes a rotating core to shred, masticate and grind the pre-defined amount of waste. Furthermore, the apparatus includes a body mechanically linked to the main frame through a linkage plate. Moreover, the apparatus includes a hopper mounted vertically on the body. Further, the apparatus includes a first set of mash double row ball bearings symmetrically positioned near the first distal end of the main shaft. In addition, the apparatus includes a second set of mash double row ball bearings symmetrically positioned near the second distal end of the main shaft.

A method for treating waste in a mechanical or mechanical-biological waste treatment plant is provided. Waste is introduced into the waste treatment plant at at least one input point, the waste is homogenized by way of at least one agitator and the consistency of the waste in the waste treatment plant is determined. Water or waste which has a higher water content than the waste in the waste treatment plant is added in one scenario. Water is removed or waste having a lower water content is added in another scenario. Further, the method involves transporting the introduced waste to at least one output point, and removing the waste. The waste treatment plant is subdivided into at least two zones and in each zone the consistency of the waste is regulated separately by the input of waste and/or addition or removal of water.

A system and method are provided for a food loading station having a disposer that grinds food waste that is located at a facility that processes food waste. A storage tank receives a slurry of food waste and water from the disposer for storage until the slurry is collected for transportation to an anaerobic digestion facility. An agitator is installed in the storage tank for mixing the slurry stored in the storage tank prior to collection for transportation to the anaerobic digestion facility. A discharge outlet is installed on the storage tank for connection to a discharge hose of a collection truck. The discharge outlet has an air admittance valve for admitting ambient air into the discharge hose while the slurry is sucked out of the storage tank through the discharge hose and into the collection truck.

Described are methods for processing mixed solid waste. The method includes providing a mixed solid waste stream including dry organic material comingled with wet organic and/or inorganic material. The mixed waste is shredded and then separated using size separation and density separation. The shredder has a cut size and rotation speed that produces less than 20% by mass of particles smaller than 2 inches from the mixed solid waste. The shredded mix solid waste is then separated by density and a portion of the stream is recovered as a recyclable or converted to a high value product.

In one aspect, a water supply system for a waste disposal may include first and second supply conduits fluidly connected to separate water supplies, with the first supply conduit having a first discharge end and the second supply conduit having a second discharge end. The system may also include a disposal conduit fluidly connected to the first and second supply conduits. The disposal conduit may be spaced apart from the first and second conduits such that an air gap is defined between an inlet end of the disposal conduit and the first and second discharge ends. The inlet end may be configured to receive water expelled from the first and second supply conduits. Moreover, an outlet end of the disposal conduit may be configured to be in fluid communication with an inlet of the waste disposal such that water directed through the disposal conduit is received within the disposal.

An apparatus includes: a disposal unit; a control unit configured to stop operation of the disposal unit; and a metal detector coil and associated circuitry, the metal detector coil located such that waste passing into the disposal unit for shredding passes through the metal detector coil. The control unit is triggered to stop operation of the disposal unit upon the detection of metal passing through the metal detector coil.