Orange waste, a biomass waste, and pectic acid were loaded with zirconium(IV) to investigate its feasibility for phosphate removal from an aquatic environment. The amount of loaded zirconium was 0.25 and 0.70 mol/kg to orange waste gel and pectic acid gel, respectively. At pH 1-4, phosphate was quantitatively adsorbed onto Zr(IV)-loaded orange waste gel, whereas the adsorption onto Zr(IV)-loaded pectic acid gel was decreased with increasing pH. The maximum adsorption capacity of phosphate onto Zr(IV)-loaded orange waste gel and Zr(IV)-loaded pectic acid gel was evaluated as 0.25 and 3.4 mmol/g, respectively. Repeated use for adsorption followed by elution with 0.2 M NaOH was possible for Zr(IV)-loaded orange waste gel in a column mode.