Treatment of ammonia-containing wastewater
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The wastewater discharged from ammonia synthesis plants contains ammonia to varying degrees. As environmental protection measures improve, the requirements regarding the ammonia content in this wastewater are becoming increasingly strict. Currently, aeration is the most common method used by various plants to treat ammonia; let’s discuss whether there are any better treatment methods available.
What do you mean by the aeration method? Most treatment methods require aeration: SBR or AO/A2O can be used
Ammonia-containing wastewater can generally be treated by stripping and desorption, achieving levels below 5PPM; gaseous ammonia can be obtained at the top of the tower.
Typically, chemical plants that produce ammonia also have urea production facilities as part of their operations. Ammonia-containing wastewater can be treated using urea through processes such as decomposition and hydrolysis, and the treatment effect is good – the ammonia nitrogen level can be kept below 10 ppm, usually between 2 and 4 ppm