A macerator includes a housing that defines a chamber, an inlet and an outlet, the inlet to receive a flow of slurry; two or more elongate concentric bodies located within the chamber defining a gap between the surface of the outer body and the inner surface of the housing, at least one of the bodies rotatable about an axis, and each body comprising a plurality of apertures defining a flow path through each body; a baffle(s) that extend substantially the width of the gap to define a first portion containing the inlet, and a second portion containing the outlet, baffle(s) substantially inhibiting passage of slurry between the two portions via the gap such that the slurry is directed through the body apertures; a motor to drive the rotating body(ies); one or more injectors that inject liquid into the gap, at least one injector located in the first portion.

The invention involves an automatic shut-off waste disposer that may be activated with a control module, which utilizes a programmable automatic shut-off routine. This enables a user to turn on the garbage disposer and walk away without having to turn the disposer off. In exemplary embodiments, activation of the disposer includes actuation of a solenoid valve for injecting a stream of water flow into the dispenser chamber in order to facilitate a proper water flow while the disposer is actively disposing of food waste. In some exemplary embodiments, activation of the disposer may be achieved via a user-activated pneumatic actuator, which may be installed in proximity to the sink to which the disposer is coupled. In some exemplary embodiments, the disposer implements a sensor for automatically shutting of a motor of the disposer upon a predetermined event.

A pumping and comminution device is disclosed that includes at least one submersible pump located in a container that is suitable for receiving and inflow material and a drive for driving the submersible pump. In said device, the at least one submersible pump comprises an impeller located in a submersible pump housing, said submersible pump housing having a suction connection for suctioning the inflow material into the submersible pump. Tools are located on the inner face of the submersible pump housing and/or the impeller, allowing solids contained in the inflow material to be comminuted.

The present invention relates to the field of garbage landfill. The present invention discloses a classified landfill device and method for garbage landfills, and the problem solved by the present invention is that the device proposed in the above background absorbs metals in the garbage using a magnet, but when the surface of the magnet has absorbed a large amount of metal, the device needs to be closed to treat the metal adsorbed on the surface of the magnet. The present invention comprises a screening mechanism, crushing mechanism and discharge mechanism. According to the classified landfill device and method for garbage landfill, the second crushing knife is set at an angle to divert the falling garbage to the front and rear sides, so that the two first crushing knives and the second crushing knife cooperate to crush the garbage respectively to avoid excessive accumulation of garbage.

A food waste disposer including a housing; a grinding device inside the housing to grind food waste; an exhaust fan inside the housing to form an air flow; an exhaust pipe connected to the exhaust fan to form an exhaust flow path along which air from the grinding device flows via the air flow formed by the exhaust fan; a filter assembly to adsorb contaminants from the air flowing along the exhaust flow path; a branch pipe branching from the exhaust pipe between the grinding device and the exhaust fan to form a connection flow path communicating with the exhaust flow path; and a sterilization device connected to the branch pipe to selectively open and close the connection flow path, and, with the connection flow path being open, generate and supply plasma to the exhaust pipe through the connection flow path via an intake airflow formed by the exhaust fan.

The embodiments of the present disclosure provide a centralized treatment device for kitchen waste. The centralized treatment device includes an upper box, an outer cover, a pulverizer, an inner cover, a filter press, a drying granulator, a lower box, an electrolysis device, a hanging basket, a material box, an exhaust fan, and a linkage mechanism. Smashed kitchen waste is subjected to solid-liquid separation by the filter press. Filter residues enter the drying granulator to be partially carbonized, and partially carbonized filter residues and mixed powder treatment agent form solid residue particles. The solid residue particles degrade and adsorb pollutants in the water after being activated by an acidic solution. Meanwhile, accumulated water-absorbing solid residue particles help to degrade the pollutants in the water through the electrolysis device. A separation area is configured to separate oil and discharge the oil separately.

A food recycler can include a case having a case volume between 8.79 liters and 35 liters, a control system, a user interface in electrical communication with the control system, and a bucket being configured with a bucket volume, wherein a ratio of the bucket volume to the case volume is between 0.0717 and 0.2857. The recycler can include a motor in communication with the control system, the motor being configured adjacent at least in part to the bucket, a gearbox configured below the bucket and in mechanical communication with the motor, a filter system having at least one filter and configured to receive air from a top portion of the bucket and a drying component configured to remove water from waste food items.

A food waste disposer system (300) has active noise control of food waste disposer noise that is generated by the food waste disposer (302) when a motor of the food waste disposer (302) is running. The food waste disposer (302) has a food conveying section that conveys food waste to a grinding section. The grinding section has a rotatable shredder plate that is rotated by a motor of a motor section. Active noise sound waves (310) are radiated into an area (313) where the food waste disposer noise is to be controlled at an amplitude and frequency to at least cancel or mask the food waste disposer noise.

A cutter assembly and high volume submersible shredder pump. These are for reducing the size of solids within a liquid which is to be pumped by chopping, grinding, shredding or cutting. An improvement over prior designs employs a cutting assembly having a rotary cutter and a cup-shaped, concave, plate cutter having a circular horizontal cross-section. The plate cutter is adapted for mounting to an intake opening of a stationary volute, associated with a shredder pump. The cutting assembly has cutting lobes having a grooved surface which mate with corresponding grooves of the shaped, concave, plate cutter. As a result, many more cutting surfaces are provided which more effectively and quickly shred the solid materials within the liquid to be expelled.

An impeller assembly with an impeller and a cutter bar plate is used in a chopper pump system which handles liquid material sometimes entrained with large debris and stringy matter. The debris and matter present clogging hazards, which are reduced by a combination of scissoring between sharpened impeller blades and shearing fingers, and between cutting wings and shearing fingers. To make the cutting feature more aggressive, sharpened edges along two of the scissoring edges of the shearing fingers are utilized. Preferably, the sharpened edges are either the result of machined v-notches on the cutting surface of the shearing fingers or of a casted part having a cupped surface. Generally speaking, the impeller assembly comprises an impeller attached to a rotatable pump shaft and includes a back shroud.