Petrochemical wastewater contains inhibitory compounds such as aromatics that are toxic to microorganisms during biological treatment. The compact and layered structure and the high amount of extracellular polymeric substances (EPS) in aerobic granular sludge (AGS) can contribute to protecting...

The iron (Fe(0) and Fe(II))-driven autotrophic denitrification (ADN) have been alternative methods for nitrogen removal from low-organic-carbon (OC) wastewater, but the accumulation of nitrous oxide (N2O) and nitrite (NO2−) along with the processes remains unclear. This research aimed to...