
Keywords: هیدروکسید لانتانیم; Palygorskite; Lanthanum hydroxide; Phosphate adsorption; Surface complexation; P; phosphorus; La; lanthanum; PAL; raw palygorskite; HPAL; calcined palygorskite at 700â¯Â°C for 4â¯h; HPAL-LaOH; lanthanum hydroxide-impregnated HPAL; HPAL-NaOH; NaOH soluti