Rice Straw as a Natural Sorbent in a Filter System as an Approach to Bioremediate Diesel Pollution

Rice straw, an agricultural waste product generated in huge quantities worldwide, is utilized to remediate diesel pollution as it possesses excellent characteristics a natural sorbent. This study aimed optimize factors that significantly influence the sorption capacity and efficiency of oil absorption from diesel-polluted seawater by rice straw (RS). Spectroscopic analysis attenuated total reflectance infrared (ATR-IR) spectroscopy surface morphology characterization variable pressure scanning electron microscopy (VPSEM) energy-dispersive X-ray microanalysis (EDX) were carried out order understand sorbent capability. Optimization temperature pre-treatment RS (90, 100, 110, 120, 130 or 140 °C), time heating (10, 20, 30, 40, 50, 60 70 min), packing density (0.08, 0.10, 0.12, 0.14 0.16 g cm?3) concentration (5, 10, 15, 20 25% (v/v)) was using conventional one-factor-at-a-time (OFAT) approach. To eliminate any non-significant factors, Plackett–Burman design (PBD) response methodology (RSM) used. A central composite (CCD) used identify presence significant interactions between factors. The quadratic model produced provided very good fit data (R2 = 0.9652). optimized conditions CCD 120 °C, 10 min, 0.148 cm?3 (v/v), these enhanced 19.6 26 mL oil, finding verified experimentally. provides improved understanding use approach pollution.