Abstract The remediation of methylene blue from wastewater using chitosan-sunflower-nano-iron (CSN) beds was examined in this study with the Fenton process. Nano-iron is synthesized green synthesis Then, biopolymer obtained nano-iron, sunflower tray waste, and chitosan. These used process for removing Methylene (MB) water. Beds dye are characterized SEM, TEM, FTIR, XRD techniques. For method op...