ABSTRACT Palm oil processing produces large amounts of liquid waste. Palm oil Mill Effluent (POME) contains high organic compounds such as COD, BOD and TSS values are so high that need processing necessary. a method that can be used is adsorption. In this study, the adsorbent used was Spent Mushroom Substrate (SMS)-Spent Bleaching Earth (SBE) biocomposite. SMS has potential as an adsorben…