Poly (methyl methacrylate) grafted wheat straw for economical and eco-friendly treatment of oily wastewater

The sustainable development of oil–gas and petrochemical industries necessitates the cost-effective eco-friendly technologies to treat mass-produced oily wastewater discharge from these industries. This study applied a simple radical polymerization enhance oil adsorption efficiency agricultural waste biomass wheat straw (WS) by grafting biocompatible poly(methyl methacrylate) (PMMA). Diesel oil-in-water emulsion using PMMA grafted WS was thoroughly studied for first time in quest developing an economical adsorbent adsorptive treatment wastewater. success pre-treatment pristine subsequent were evaluated SEM morphology, BET analysis, EDX XPS elemental FTIR, contact angle measurements. images indicated that inner interconnected tubular pore channels are exposed significantly upon alkaline hydrogen peroxide pre-treatment. substantially improved adhesivity, as evident 0° WS-g-PMMA film. Oil absorptivity batch variable dosages concentrations. exhibited explicitly higher capacity (ca. 1129 mg/g) compared 346 pretreated 741 due high accessibility strong hydrophobic interactions between surface droplets. Langmuir Freundlich isotherms evaluate mechanism. experimental data fit well with isotherm, clearly indicating heterogeneity sites, multilayer oil. pseudo-second-order rate equation R2 0.999, which confirmed makes it very promising material treatment. removal declined < 4% at end 3 adsorption-regeneration cycles, possibility long-term usage, is beneficial cost-effectiveness lower frequency end-use management. will simultaneously resolve issues facilitate recycling abundant quantities WS. serves reference analyzing suitability treating extremely challenging streams, such steam assisted gravity drainage (SAGD) produced water containing BTEX PAHs also like diesel