The research aims to prepare and study environmentally friendly materials from mixture shells of almond, pistachio, peanut, and walnut (APPWS) as adsorbents for the removal of phenols from wastewater, then synthesis activated biochar through chemical activation using phosphoric acid, The results showed a significant improvement in activated biochar after activation in surface area, pore volume and Average pore diameter before and after activation, were from 0.45427 m²/g to 1116.2 m²/g, 0.0026476 cm3/g to 1.0332 cm3/g and 23.313 nm to 3.7024 nm respectively. Batch adsorption experiments were conducted under varying operational conditions, including PH (3,5,7,9 and11), contact time (30,60,90,120, and 150) min, agitation speed (100,150,200, and250) rpm, phenol concentration (50,100,150,200, and 250) mg/l, and adsorbent dosage (0.4,0.6,0.8,1,1.2) g, to identify optimal parameters for phenol removal efficiency, The perfect result was in (5,90min,200 rpm,50 mg/l, and 0.8 g respectively. Detailed characterization of the adsorbents was performed using FTIR, SEM, BET, and XRD techniques, It showed improvement in (APPWS) before and after activation. Many Adsorption Isotherms Models and Kinetic Models were studied and the most suitable Freundlich Isotherm Model and Pseudo-Second-Order. This shows that the adsorption was chemisorption.