Treatability of five micro-pollutants using modified Fenton reaction catalysed by zero-valent iron powder (Fe(0))

Diuron, gabapentin, sulfamethoxazole, terbutryn and terbuthylazine are emerging micro-pollutants with concentrations in water wastewater ranging from tens of ng/L to >10 μg/L levels. The Fenton oxidation catalysed either by zero-valent iron (Fe(0)) or Fe(II) salts was studied treat the targeted their mixtures at compound between 1 1000 µg/L. Fe(0)-catalytic exhibited complete degradation all initial solution pH 3 but 5, 90% for diuron, 80% 95% 100% 70% terbuthylazine, respectively. Moreover, dissolved organic carbon multiple micro-pollutant solutions can be reduced 46% which were much better than Fe(II)-catalytic reaction same conditions. SEM/EDX analysis showed corrosion surface FTIR evidenced adsorption by-products onto solid surface. Additionally, toxicity effluent after treatment minimal Behnajady-Modirshahla-Ghanbery (BMG) model fitted well kinetics mineralisation micropollutants. Finally, Fe(0) catalyst reused up three times process produced no less sludge impact this study is that would an alternative traditional combat environmental issues caused micro-pollutants.