Chemical oxidation of benzene and trichloroethylene by a combination of peroxymonosulfate and permanganate linked by in-situ generated colloidal/amorphous MnO2

The present study demonstrates the effectiveness of a novel oxidant system, namely the combined use of peroxymonosulfate (PMS) and permanganate (CUPP), for the degradation of benzene and trichloroethylene (TCE) in simulated groundwater. The CUPP process exhibited favorable oxidizing capability because the in-situ generated colloidal and amorphous MnO2 linked the two oxidants. Compared with the separate use of permanganate or peroxymonosulfate,...