Enhancement of Iron-Based Photo-Driven Processes by the Presence of Catechol Moieties

Photo-induced Advanced Oxidation Processes (AOPs) using H2O2 or S2O82? as radical precursors were assessed for the abatement of six different contaminants emerging concern (CECs). In order to increase efficiency these AOPs at a wider pH range, catechol organic functional compound was studied potential assistant in photo-driven iron-based processes. Different salinity regimes also (in terms Cl? concentration), namely low salt water (1 g·L?1) salt–water (30 matrix. Results obtained revealed that presence could efficiently assist photo-Fenton system and partly promote photo-induced system, which highly dependent on salinity. Regarding behavior individual CECs, reaction able enhance degradation all meanwhile S2O82?-based process showed moderate enhancement acetaminophen, amoxicillin clofibric acid. Finally, response-surface methodology employed determine effect concentration Catechol removed during process. According results obtained, macromolecules can bring some advantages treatment either freshwater (wastewater) seawater (maritime aquaculture industry).