The present invention relates to a method for recovering metals using an adsorbent, which comprises preparing a leachate comprising metal ions and cyanides, wherein the metal ions comprise gold ions and copper ions; and in a state where the leachate has a cyanide (CN) concentration of 0.1 ppm or greater, adding to the leachate an adsorbent, which has an open circuit potential value between the open circuit potential value of the gold ions and that of the copper ions; and selectively adsorbing the copper ions to the adsorbent.

The invention in at least one embodiment includes a system for treating water having an intake module, a vortex module, a disk-pack module, and a motor module where the intake module is above the vortex module, which is above the disk-pack module and the motor module. In a further embodiment, a housing is provided over at least the intake module and the vortex module and sits above the disk-pack module. In at least one further embodiment, the disk-pack module includes a disk-pack turbine having a plurality of disks having at least one waveform present on at least one of the disks.

A canister which has a substantially cylindrical form and comprises an innermost compartment located around an imaginary center axis of the cylindrical form and extending longitudinally in axial direction of the canister. The canister comprises cleaner cones, which have a substantially cone-like form with a hollow inside and which cleaner cones are removably mounted to the canister and located in the canister such, that narrow ends of cone form of the cleaner cones extend to the innermost compartment and wide ends of the cone form of the cleaner cones extend to the cylindrical circumference of the canister. The cleaner cones comprise covers and the cleaner cones are mounted such that cover of the cleaner cone is outside the canister. The canister further comprises an inspection light source configured to provide a visible indication of status of a cleaner cone of the canister in view of possible plug in the cleaner cone, when the light source is in operation.

A canister which has a substantially cylindrical form and comprises an innermost compartment located around an imaginary center axis of the cylindrical form and extending longitudinally in axial direction of the canister. The canister comprises cleaner cones, which have a substantially cone-like form with a hollow inside and which cleaner cones are removably mounted to the canister and located in the canister such, that narrow ends of cone form of the cleaner cones extend to the innermost compartment and wide ends of the cone form of the cleaner cones extend to the cylindrical circumference of the canister. The cleaner cones comprise covers and the cleaner cones are mounted such that cover of the cleaner cone is outside the canister. The canister further comprises an inspection light source configured to provide a visible indication of status of a cleaner cone of the canister in view of possible plug in the cleaner cone, when the light source is in operation.

A hand vacuum cleaner comprises a cyclone comprising a front end having a cyclone air inlet, a rear end having a cyclone air outlet and a cyclone axis of rotation extending between the front end and the rear end of the cyclone. A conical pre-motor filter is positioned rearward of the cyclone. The pre-motor filter has a front end that faces that faces towards the cyclone air outlet. A suction motor is positioned rearward of the pre-motor filter. The suction motor has an inlet end that faces towards a rear end of the pre-motor filter. A handle is provided at the rear end of the hand vacuum cleaner and is positioned rearward of the suction motor. The handle has an energy storage member housing, The cyclone axis of rotation and the suction motor axis of rotation are parallel, and the handle axis extends at an angle to the cyclone axis of rotation and the suction motor axis of rotation.

A hand vacuum cleaner comprises a cyclone comprising a front end having a cyclone air inlet, a rear end having a cyclone air outlet and a cyclone axis of rotation extending between the front end and the rear end of the cyclone. A conical pre-motor filter is positioned rearward of the cyclone. The pre-motor filter has a front end that faces that faces towards the cyclone air outlet. A suction motor is positioned rearward of the pre-motor filter. The suction motor has an inlet end that faces towards a rear end of the pre-motor filter. A handle is provided at the rear end of the hand vacuum cleaner and is positioned rearward of the suction motor. The handle has an energy storage member housing, The cyclone axis of rotation and the suction motor axis of rotation are parallel, and the handle axis extends at an angle to the cyclone axis of rotation and the suction motor axis of rotation.

An apparatus for trapping an exhaust material from a substrate-processing process includes: a cyclone configured to provide the exhaust material with a swirling flow, wherein the exhaust material is discharged from the substrate-processing process using a reaction gas; an atomization module for providing the cyclone with a mist to convert the exhaust material into a powder through a wet oxidation reaction, and a collector configured to collect the powder.

An apparatus for trapping an exhaust material from a substrate-processing process includes: a cyclone configured to provide the exhaust material with a swirling flow, wherein the exhaust material is discharged from the substrate-processing process using a reaction gas; an atomization module for providing the cyclone with a mist to convert the exhaust material into a powder through a wet oxidation reaction, and a collector configured to collect the powder.

A cleaner including a cyclone dust collector and a filter has a shortened total length. The cleaner includes a main unit including a suction port, a cyclone unit including a cyclone dust collector having an outlet and a cylinder located rearward from the outlet and having an opening larger than the outlet, and a filter located frontward from the suction port and covering the opening.

A cleaner including a cyclone dust collector and a filter has a shortened total length. The cleaner includes a main unit including a suction port, a cyclone unit including a cyclone dust collector having an outlet and a cylinder located rearward from the outlet and having an opening larger than the outlet, and a filter located frontward from the suction port and covering the opening.