ABSTRACT Cadmium (Cd) is a heavy metal that is commonly found in aquatic environments and has a high level of toxicity. Adsorption is the adsorption process of a substance on the surface of another substance due to the molecular attraction that occurs between the adsorbate and the adsorbent. One of the adsorbents that can be used to remove Cd metal is POFA-based zeolite. This study aims to ana…