Removal of Naphthalene, Fluorene and Phenanthrene by Recyclable Oil Palm Leaves’ Waste Activated Carbon Supported Nano Zerovalent Iron (N-OPLAC) Composite in Wastewater

Despite keen interest in the development of efficient materials for removal polycyclic aromatic hydrocarbons (PAHs) wastewater, application advanced composite is still unexplored and needs attention. Therefore, this study focused on synthesis oil palm leaves’ waste activated-carbon (OPLAC) nano zerovalent iron (NZVI) at Fe:OPLAC = 1:1 (N-OPLAC-1) 1:2 (N-OPLAC-2). The with enhanced surface properties was applied three PAHs including naphthalene (NAP), fluorene (FLU) phenanthrene (PHE) wastewater various pH, dosages, contact time initial concentration batch testing. PAHs’ parameters were optimized using design expert software. efficiency evaluated produced water parameters. results showed that N-OPLAC-2 had superior compared to N-OPLAC-1. NAP, FLU PHE heterogenous, favorable involved chemisorption proved by Freundlich isotherm pseudo-second-order kinetic models N-OPLAC-2. optimum as follows: pH 3, dosage 122 mg/L 49 min, respectively. up 90% efficiency, higher stability 3 cycles. It can be concluded NZVI-OPLAC successfully synthesized good (NAP, PHE) wastewater.