A cleaning apparatus for metal smallware is provided having a washing chamber configured to carry out a washing cycle and suction means connected to the washing chamber and configured to carry out a discharge cycle, a main absorption column having a first side and a second side opposite each other, wherein the first side is hydraulically connected to the suction means and the second side is hydraulically connected to a supply duct. In particular, the main absorption column is configured to cause an interaction between a gaseous mixture supplied by the suction means and an absorption liquid supplied by the supply duct to perform chemical absorption of a solvent present in the gaseous mixture having air and solvent, in the absorption liquid, and reduce the concentration of solvent in the gaseous mixture having air and solvent.

The invention relates to a method for removing residues present on a metal strip at the outlet of a cooling stage of a continuous line, the residues being formed during a cooling of said metal strip by a non-oxidizing liquid solution for the metal strip and a stripping liquid solution for the oxides present on the surface of the strip, or by a mixture of this liquid solution and a gas. The method according to the invention is characterized in that it comprises a step of reducing the residues by hydrogen.

In order to provide a device and a method for treating workpieces (102), which allow optimum treatment of the workpieces, a treatment station (114) comprises a treatment chamber (136) that can be flooded for the purpose of treating the workpiece.

In order to provide a device and a method for treating workpieces (102), which allow optimum treatment of the workpieces, a treatment station (114) comprises a treatment chamber (136) that can be flooded for the purpose of treating the workpiece.