Yu Song

TL;DR: Three-dimensional excitation-emission matrix (EEM) fluorescence spectroscopy confirmed that the powerful SO(4)(-) from Fe(II)-S(2)O(8)(2-) system destroyed the particular functional groups of fluorescing substances in EPS and caused cleavage of linkages in the polymeric backbone, resulting in the release of EPS-bound water, intracellular materials and water of hydration inside cells, and subsequent enhancement of dewaterability.

TL;DR: EEM and FT-IR analysis indicated that combined thermal and Fe(II)-S(2)O(8)(2-) oxidation pretreatment led to degrading of tyrosine and tryptophan protein-like substances in extracellular polymeric substances (EPS) and cleavage of linkages in polymeric backbone.

TL;DR: In this paper, the response of waste activated sludge anaerobic digestion to a shock load of Fe ( II ) / S 2 O 8 2 - oxidation were investigated, and it was observed that total suspended solids (TSS) and volatile suspended soliders (VSS) removals were considerably lowered when Fe(II) and S 2O 8 2 − dosages were greater than 0.8 and 1.0 µmol/g VSS, respectively, while 34.6-60.5% drop in hydrogen sulfide (H 2 S)

TL;DR: It was found that COD, NH4+-N and TS in leachate decreased significantly over ages, while pH increased, which suggested that the organic matter remained inLeachate would form into middle molecular weight substances during the degradation process.

TL;DR: Ferrous persulfate (Fe(II)/S2O82) oxidation has gained much attention due to its outstanding oxidizability and high efficiency in upgrading waste activated sludge (WAS) dewaterability as mentioned in this paper.