... strong oxidant, and recirculation of the solubilized excess sludge, containing readily biodegradable carbon, in a biological treatment system (Chu et al., 2008; Cui and Jahng, 2004; Kamiya and Hirotsuji, ... causing DNPAOs to take an active part in simultaneous nitrogen and phosphorus removal in an acetate-fed sequencing batch reactor (SBR) in which additional acetate was required for inhibition of phosphorus ... ozonation and phosphorus adsorption Takashi KONDO*, Satoshi TSUNEDA**, Yoshitaka EBIE*, Yuhei INAMORI***, and Kaiqin XU* * Research Center for Material Cycles and Waste Management, National...