Aerobic granular reactors

Aerobic granular sludge (AGS) is an innovative technology to simultaneously remove nitrogen, phosphorus and carbon (SNDPR) from wastewater with bacterial granules and is considered to be one of the most prospective biological treatment technologies in the 21st century.Methanol and ethanol is most commonly used in various wastewater treatment plants for the enhancement of denitrification; however, it has insignificant or negligible effects on biological phosphorus removal. On the other hand, acetate is the most prevalent VFA in lab study and municipal wastewater treatment plant as the typical carbon source for Enhanced biological phosphorus removal (EBPR). Other VFAs, such as propionate, butyrate, valerate, isovalerate and lactate, have been used for EBPR purposes.