Promoted degradation of perfluorooctanic acid by persulfate when adding activated carbon

- PFOA removal and defluorination with AC/PS are 12 and 19 times higher than PS only
- AC can activate PS to accelerate the decomposition and mineralization of PFOA.
- With AC/PS, a lower reaction temperature and a shorter reaction time would suffice
- A 2-cycle schematic reaction mechanism was proposed to describe PS oxidation of PFOA.