Zirconium (Zr)-based nanomaterials have been considered efficient in removing phosphate (P) from effluent. Compared to rough-wrought Zr(OH)4, Zr-based nanoparticles perform efficient P removal when confined in nanospace. However, the effect of nanoconfinement on the evolution of the Zr–P structure in a long-term wastewater treatment process was unclear. Herein, commercial D201 was used as a host for nanohydrous zirconium oxide (HZrO) to investigate the development of Zr–P structures. The kinetics of HZrO@D201 and the structural evolution of Z...