Acacia bark (Acacia crassicarpa) contains high levels of lignin and cellulose, making it a potential material for use as a powdered adsorbent. Acacia bark powder was utilized as an adsorbent in the adsorption process of Cd(II). This study aimed to determine the optimal adsorption efficiency and capacity of acacia bark powder in the removal of Cd(II) using adsorbent dose and pH as parameters. Th…