The station consists of two filter modules and additional piping materials, allowing flexibility for different operating modes. The station can be operated either with filter assemblies connected in series - this increases the filtration capacity but requires the system to be shut down to change the filter - or with filter assemblies connected in parallel, whereby one of the two filters can be removed during operation, e.g. to replace the activated carbon. The remaining filter can continue to be operated with a reduced flow rate.

Function
Adsorption processes are widely used, particularly in industrial wastewater treatment in various sectors such as food, textiles, pharmaceuticals and petroleum refineries.
Activated carbon is also used in municipal wastewater treatment plants as a fourth purification stage to remove trace substances such as pharmaceutical residues and microplastics, thereby improving water pollution control.

In the adsorption station, clear tap water is dyed and fed into the wastewater tank for illustrative purposes. A second tank receives the clean water. For ease of use, the discolored water can be continuously pumped through the activated carbon filter in the circuit of the first tank under observation until the desired degree of decolorization is achieved. A solenoid valve can then be activated to divert the water flow into the clear water tank.