The present invention relates to a laundry-care appliance (100) having a washing tub (107) and a deodorizing module (109) for dispensing deodorizing substance into the washing tub (107), wherein the deodorizing module (109) is connected to the washing tub (107) and comprises a radial fan (115) for ventilating the washing tub (107), wherein the radial fan (115) is drivable in a first direction of rotation (121) and in a second direction of rotation (123). The deodorizing module (109) is configured to dispense deodorizing substance into the washing tub (107) in a first period of time, wherein the radial fan (115) is drivable in the first direction of rotation (121) in the first period of time in order to distribute the deodorizing substance in the washing tub (107). The radial fen (115) is drivable in the second direction of rotation (123) in a second period of time following the first period of time, in order to remove the deodorizing substance from the washing tub (107) in the second period of time.

An apparatus for processing aggregate material includes a chassis, a trough mounted on the chassis at an inclined angle, and at least one shaft rotatably mounted within the trough and extending from a lower to an upper end of the trough. The at least one shaft has blades mounted thereon, the blades being angled so that they carry material within the trough towards the upper end of the trough when the at least one shaft is in a normal direction of rotation. A discharge opening is formed in a base of the trough adjacent the upper end of the trough, a weir being provided in the trough upstream of the discharge opening over which processed material must pass to reach the discharge opening.

Aggregate washing systems are described including mechanisms for slurrying, washing and/or dewatering aggregate material.

A method of washing a food product with a short-term, intense treatment solution. One example method generally includes: applying, using a short-term wash device, a short-term wash treatment solution to the food product; and applying, using a wash device coupled to the short-term wash device, a wash treatment to the food product such that the wash treatment rinses the short-term wash treatment solution from the food product, wherein: the short-term wash treatment solution is applied to the food product for a shorter duration than the wash treatment is applied to the food product; the short-term wash treatment solution is chemically different from the wash treatment; and the short-term wash treatment solution comprises an acidulant and a polyol.

A cleaning device for crystalline silicon recycled from photovoltaic cells by wet purification includes at least two tanks, a vacuum pump and first cleaning mechanisms arranged between the tanks. The number of the first cleaning mechanisms is the same as that of the tanks. An upper end of the tank is provided with a cover plate, and a lower end of the tank is provided with a discharge port. The upper end of the tank is provided with a ventilation port. The first cleaning mechanism includes a drum. A lower end of the drum is connected with a lower hood, and an upper end of the drum is connected with an upper hood. A sealing surface is arranged respectively between the drum and the lower hood and between the drum and the upper hood. The device includes the tanks, the vacuum pump and the first cleaning mechanisms.

A process for reducing the salinity of salt containing material (SCM) includes introducing the SCM into a wash system configured to sequentially wash the SCM with water having decreasing salinity levels across a plurality of mixing tanks arranged in series; introducing feed water into the wash system in a countercurrent flow relative to the SCM; discharging washed SCM from the wash system, the washed SCM having a lower salinity compared to the SCM that is initially introduced into the wash system; and discharging brine from the wash system, the brine being generated in a mixing tank that initially receives the SCM into the wash system.

A flowback tank cleaning system and method is described. A flowback tank includes a self-cleaning system. A flowback tank cleaning method may include moving solid debris collected at a bottom of a collection section of a flowback tank towards a lift auger using a cleaning auger or a conveyer belt extending along a length of the collection section, the bottom of the collection section including an angled trough, funneling solid debris towards the cleaning auger or conveyor belt by placing the cleaning auger or conveyor belt at a base of the angled trough, spraying fluid downward through a series of fluid outlets, removing the sand so moved by the cleaning auger or conveyer belt from the flowback tank using the lift auger, and removing the fluid from the flowback tank using a drain manifold below the cleaning auger or conveyer belt.

A flowback tank cleaning system and method is described. A flowback tank includes a self-cleaning system. A flowback tank cleaning method may include moving solid debris collected at a bottom of a collection section of a flowback tank towards a lift auger using a cleaning auger or a conveyer belt extending along a length of the collection section, the bottom of the collection section including an angled trough, funneling solid debris towards the cleaning auger or conveyor belt by placing the cleaning auger or conveyor belt at a base of the angled trough, spraying fluid downward through a series of fluid outlets, removing the sand so moved by the cleaning auger or conveyer belt from the flowback tank using the lift auger, and removing the fluid from the flowback tank using a drain manifold below the cleaning auger or conveyer belt.

A method for cleaning a solar power system includes operating a solar power system that comprises a plurality of solar power cells mounted on a spherical frame; rotating the spherical frame to move the plurality of solar power cells into a volume of a hemispherical reservoir that is mounted to the spherical frame; rotating the spherical frame to move the plurality of solar power cells into a solar cell cleaning solution fluid enclosed within the volume of the hemispherical reservoir defined between an interior surface of the reservoir and the spherical frame; and removing, with the solar cell cleaning solution, a plurality of particulates attached to the plurality of solar power cells.

A rotating drum of a rotating drum-type workpiece cleaning device is provided with feed fins that extend helically along the inner circumferential surface of the drum body. The feed fins are, for example, fins in which metal sheets have been folded. On both sides of the feed fins, the angle of the internal corner between the feed fin and the inner circumferential surface of the drum body is an obtuse angle, for example, about 120 degrees. It is possible to prevent or limit the trapping of conveyed workpiece in the internal corner and trapping between adjacent fin sections.