A screen sorting device for cleaning a fibrous stock suspension includes: an inlet for the fibrous stock suspension; a first sorting stage, which includes a first accepts discharge; at least one second sorting stage, which includes a second accepts discharge; and a fill level detection way, which is configured for detecting an accumulation height in the at least one second sorting stage and is assigned to the at least one second sorting stage.

A method for removing ultrafine particles from an atomized powder includes contacting the atomized powder with a removal liquid to form a mixture of the atomized powder and the removal liquid, the atomized powder comprising fine particles and ultrafine particles, adding energy to the mixture of the atomized powder and the removal liquid with a liquid classifier system to detach the ultrafine particles from the fine particles, and separating, with the liquid classifier system, the removal liquid and the detached ultrafine particles from the fine particles.

A method for removing ultrafine particles from an atomized powder includes contacting the atomized powder with a removal liquid to form a mixture of the atomized powder and the removal liquid, the atomized powder comprising fine particles and ultrafine particles, adding energy to the mixture of the atomized powder and the removal liquid with a liquid classifier system to detach the ultrafine particles from the fine particles, and separating, with the liquid classifier system, the removal liquid and the detached ultrafine particles from the fine particles.

An integrated sieve device for particle size screening of a soil sample is provided, the device comprising: a particle size screening unit having at least one sieve and configured to screen the soil sample by particle sizes and to drop the soil sample; a body housing in a cylindrical shape, wherein a part of a lateral surface of the body housing is open, wherein the particle size screening unit is detachably coupled to an inner lateral surface of the body housing; a sample reception unit mounted at a lower portion of the particle size screening unit coupled to the body housing and configured to collect soil and water discharged below the particle size screening unit by being screened by the sieve; and a water supply unit mounted at an inlet formed on an upper end of the body housing and configured to supply water into the particle size screening unit.

An integrated sieve device for particle size screening of a soil sample is provided, the device comprising: a particle size screening unit having at least one sieve and configured to screen the soil sample by particle sizes and to drop the soil sample; a body housing in a cylindrical shape, wherein a part of a lateral surface of the body housing is open, wherein the particle size screening unit is detachably coupled to an inner lateral surface of the body housing; a sample reception unit mounted at a lower portion of the particle size screening unit coupled to the body housing and configured to collect soil and water discharged below the particle size screening unit by being screened by the sieve; and a water supply unit mounted at an inlet formed on an upper end of the body housing and configured to supply water into the particle size screening unit.

Disclosed herein are methods of treating metal mine tailings. Embodiments of the method comprise separating the metal mine tailings into a highly contaminated fraction and a tolerable benign fraction, purifying the tolerable benign fraction and disposing the purified tolerable benign fraction within a managed environment, and sequestering the highly contaminated fraction in a sub-aqueous tailings management facility.

Disclosed herein are methods of treating metal mine tailings. Embodiments of the method comprise separating the metal mine tailings into a highly contaminated fraction and a tolerable benign fraction, purifying the tolerable benign fraction and disposing the purified tolerable benign fraction within a managed environment, and sequestering the highly contaminated fraction in a sub-aqueous tailings management facility.

A fluidized bed separator (1) includes a feed section (4) between an upper separation chamber (19) and a main separation chamber (6). The feed section (4) has one or more feed pipes (11) extending horizontally and transversely with respect to a body wall (10) of the fluidized bed separator (1). The one or more feed pipes (11) are positioned completely and entirely underneath the inclined plates (17). An external oversize protection apparatus (3) which is separate from and external to the body wall (10) may be operatively coupled to the one or more feed pipes (11). One or more lamella cartridges (49) may be provided within channels (18) of the upper separation chamber (19), and one or more breakaway plates (54, 55) may be inserted within channels (18) to prevent sanding and facilitate insertion and extraction of the lamella cartridges (49).

A fluidized bed separator (1) includes a feed section (4) between an upper separation chamber (19) and a main separation chamber (6). The feed section (4) has one or more feed pipes (11) extending horizontally and transversely with respect to a body wall (10) of the fluidized bed separator (1). The one or more feed pipes (11) are positioned completely and entirely underneath the inclined plates (17). An external oversize protection apparatus (3) which is separate from and external to the body wall (10) may be operatively coupled to the one or more feed pipes (11). One or more lamella cartridges (49) may be provided within channels (18) of the upper separation chamber (19), and one or more breakaway plates (54, 55) may be inserted within channels (18) to prevent sanding and facilitate insertion and extraction of the lamella cartridges (49).

An integrated sieve device for particle size screening of a soil sample is provided, the device comprising: a particle size screening unit having at least one sieve and configured to screen the soil sample by particle sizes and to drop the soil sample; a body housing in a cylindrical shape, wherein a part of a lateral surface of the body housing is open, wherein the particle size screening unit is detachably coupled to an inner lateral surface of the body housing; a sample reception unit mounted at a lower portion of the particle size screening unit coupled to the body housing and configured to collect soil and water discharged below the particle size screening unit by being screened by the sieve; and a water supply unit mounted at an inlet formed on an upper end of the body housing and configured to supply water into the particle size screening unit.