Removal of ammonia nitrogen from black and odorous water by macrophytes based on laboratory microcosm experiments.

In recent years, the removal mechanism of ammonia nitrogen in black and odorous water (BOW), especially in the process of phytoremediation, has been a research "hotspot". Here, the migration process of ammonia nitrogen in macrophytes (, and ) was detected by Fourier transform infrared (FT-IR) spectroscopy. Experiments revealed that the concentration of ammonia nitrogen (NH -N) was reduced significantly.