| dc.description.abstract | The main objective of this research was to enhance nitrogen removal efficiency by
adding iron scraps into the sponge membrane bioreactor (SMBR) which was used for
treating synthetic wastewater characterized for municipal wastewater. The study
examines the effect of adding iron scraps on different parameters such as chemical
oxygen demand (COD), ammonium (NH4+-N), nitrite (NO2--N), nitrate (NO3--N), total
nitrogen (TN) removal efficiency, mass liquid suspended solids (MLSS), and the
microbial community in the reactor. The results indicate that the addition of iron
improves COD, nitrate, and total nitrogen removal efficiency from 93.904 ± 2.885% to
96.1313 ± 2.491%, 41.788 ± 11.263% to 59.59 ± 19.617%, and 33.842 ± 6.73% to
36.051 ± 7.3%, respectively. However, the ammonia removal efficiency decreased from
87.164 ± 10.332% to 60.334 ± 8.936%. Besides, the addition of iron led to a change in
the microbial community, especially Cyanobacteria and Proteobacteria responsible for
nitrogen removal. Therefore, adding of iron scraps in SMBR could enhance TN removal
efficiency. | en_US |
