Effect of return activated sludge diversion ratio on phosphorus removal performance in side-stream enhanced biological phosphorus removal (S2EBPR) process

Minimizing biological sludge generation in a sidestream enhanced biological phosphorus removal (S2EBPR) system: full-scale evaluation and modeling insights

“…Consequently, the two systems were operated under similar biomass concentration and SRT conditions. The SRT of the S2EBPR system was similar to that applied by Taotao Lv et al 28 and Wang et al 14 of 12.6–19.7 days and 9.7 days, respectively.…”

“…In previous studies S2EBPR was implemented at low and moderate SRT (<20 days). 11,13,14,28 Consequently, there is no available evidence regarding the effects of the prolonged SRT on the S2EBPR system performances in removing OP. Previous studies on conventional EBPR reported that a prolonged SRT (16-40 days) could be detrimental for OP removal due to the higher competitiveness of GAO at prolonged SRT.…”