Bio-Fenton-Assisted Biological Process for Efficient Mineralization of Polycyclic Aromatic Hydrocarbons from the Environment

The intensive production of fossil fuels has led to serious polycyclic aromatic hydrocarbon (PAH) contamination in water and soil environments (as PAHs are typical types emerging contaminants). Bio-Fenton, an alternative Fenton oxidation, which generates hydrogen peroxide at a nearly neutral pH condition, could ideally work as pretreatment recalcitrant organics, be combined with the subsequent biological treatment without any need for adjustment. present study investigated performance Bio-Fenton-assisted process mineralization three PAHs. production, PAH removal, overall organic mineralization, microbial community structure were comprehensively studied. results showed that achieve efficient chemical oxygen demand (COD) removal (88.1%) mixed compared activated sludge (33.1%), where individual efficiencies 99.6%, 83.8%, 91.3% observed naphthalene (NAP), anthracene (ANT), pyrene (PYR), respectively, process.