In 2017, SULTRADE implemented a turnkey project and supplied technology for the removal of ammonia from wastewater. The unit has a capacity of 2.5–10 m³/h of wastewater with an ammonia concentration of 300–1,600 mg/l. The unit operates on the principle of steam stripping following alkalization of the wastewater with NaOH. Stripping takes place at atmospheric pressure in a packed column (manufactured by Sulzer Chemmtech Ltd.).
The stripping process produces wastewater (stripped wastewater) with an ammonia content of less than 50 ppm, which is then treated at the existing wastewater treatment plant.
A byproduct of the stripping process is ammonia water (a 25% w/w solution of NH3 in water), which is produced by the condensation of vapors extracted from the top of the stripping column in a plate heat exchanger
