Iprodione Removal by UV-Light-, Zero-Valent Iron- and Zero-Valent Aluminium-Activated Persulfate Oxidation Processes in Pure Water and Simulated Tertiary Treated Urban Wastewater

The degradation of iprodione (IPR), a once frequently used but recently banned dicarboximide fungicide, by UV-C light-, zero-valent iron- (ZVI), and aluminium (ZVA)-activated persulfate (PS) oxidation processes was comparatively studied in distilled (pure) water (DW) simulated, tertiary treated urban wastewater (SWW). performance PS-activated examined following IPR (2–10 mg/L) removal, PS (0.01–1.00 mM) consumption, metal ion release (for the two heterogeneous catalytic processes), dissolved organic carbon (DOC) removal as well hydroxylated aromatic low molecular weight aliphatic products. effect pH concentrations on DW. While experiments DW highlighted superior UV-C/PS treatment (with 78% DOC after 120 min at = 6.2), decreased sharply (to 24% 6.8) complex matrix (in SWW). Complete 20 min) 40% removals were obtained with ZVI/PS (1 g/L ZVI, 1.5 mM PS, 3.0), which most effective process SWW. strongly influenced SWW constituents, appeared to be sensitive it.