Technology for the treatment of the used waters resulting from the softening process

The waste waters from the Romanian power plants mainly result from the water treatment stations and partially from the continuous blow down from steam boilers, from the liquid ash removal/slag removal, the hydro technical circuits, the boiler chemical cleaning, air reheaters, the blow clown from the cooling systems, the gravitational separators of oil. In agreement with the fuel used (power plants with or without ash dump), the power plant location and the sewage system configuration, the wastewater is discharged in: the slag and ash dump, the rivers, the lakes and directly to the town sewage system. The discharge requirements impose the treatment of the wastewaters resulting from the power station. This paper presents a modern technology for the treatment of the wastewater resulting from the softening process.