Activation of Peroxymonosulfate by Fe0 for the Degradation of BTEX: Effects of Aging Time and Interfering Ions

Resolving three environmental challenges simultaneously—recycling bone waste, aggregation, oxidation of bare nZVI and benzene, toluene, ethylbenzene, p-xylene (BTEX) contamination—was conducted by fabricating a highly stable efficient activator peroxymonosulfate. In this work, novel heterogeneous catalyst, ostrich ash-supported nanoscale zero-valent iron (Fe0-OBA) prepared pyrolysis animal bones reduced Fe2+ on the surface it, was used for activation peroxymonosulfate (PMS). Advantageous properties such as extensive availability, low production cost, high thermal stability make OBA an appealing carbonaceous material catalysis. The TEM SEM results revealed that black ball-shaped particles were uniformly dispersed OBA. Fe0-OBA composite had porous structure with specific area 109 m2 g?1 according to BET analysis. With BTEX refractory pollutant, PMS-based system shows great degradation performance compared homogeneous Fe2+/PMS system. effects various parameters, initial pH (2–9), temperature (25–45 °C), concentration (50–200 mg L?1), PMS dosage (0.5–1.25 mM), time reaction (0–60 min), (0.5–5 g L?1) degradation, have been discussed in detail. pseudo-first-order kinetic model can describe excellent even after 10 years, while maintaining efficiency, potential it wide range practical applications. This study illustrated could be effective stubborn organic contaminants water wastewater.