Electrochemical/Peroxymonosulfate/NrGO-MnFe2O4 for Advanced Treatment of Landfill Leachate Nanofiltration Concentrate

A simple one-pot method was used to successfully embed manganese ferrite (MnFe2O4) nanoparticles on the nitrogen-doped reduced graphene oxide matrix (NrGO), which activate peroxymonosulfate treat landfill leachate nanofiltration concentration (LLNC) with electrochemical enhancement. NrGO-MnFe2O4 and rGO-MnFe2O4 were characterized by various means. This indicates that could induce more (GO) spall reduction produce active centers, favorable for uniformly loading MnFe2O4 particles. The comparison between electrochemical/peroxymonosulfate/NrGO-MnFe2O4 (EC/PMS/NrGO-MnFe2O4) system different catalytic systems shows reaction, NrGO can synergies, chemical oxygen demand (COD) removal rate of LLNC reach 72.89% under optimal conditions. three-dimensional (3D-EEM) fluorescence spectrum has a strong treatment effect macromolecules intense emission in LLNC, such as humic acid, degrades into substances weak or no characteristics. Gas chromatography-mass spectrometry (GC-MS) complex structure refractory organic compounds be simplified, while small molecular directly mineralized. mechanism degradation preliminarily discussed free radical quenching experiment. Therefore, EC/PMS/NrGO-MnFe2O4 significant application potential wastewater.