Peizeng Yang

TL;DR: It is reported that certain contaminants, such as sulfonamides (SAs), are amendable to direct oxidation by PMS without activation, and the formation of potential hazardous nitroso- and nitro-byproducts should be scrutinized before this technology can be safely used for water and wastewater treatment.

TL;DR: The formation of toxic polynitroaromatic intermediates in SO4--based advanced oxidation processes should be scrutinized before this technology can be safely utilized for water and wastewater treatment.

TL;DR: This study demonstrated that SO4•- could induce the activation of nitrite, an anion commonly present in the subsurface environment, leading to the formation of nitrophenolic byproducts, the first study reporting the nitration of NOM and formation of toxic nitrobenzoic byproducts during SO4--based oxidation.

TL;DR: Detailed reaction pathways for SQX degradation including sulfonamide bond cleavage, SO2 extrusion, and aniline moiety oxidation were proposed and may provide some useful information for better understanding the kinetics and mechanisms of SQx degradation by sulfate radical-based advanced oxidation processes (SR-AOPs).

TL;DR: In this article, the degradation of 2,4-Dinitroanisole (DNAN) in water by UV-based advanced oxidation processes, including UV/H2O2 and UV/persulfate (UV/PS), was investigated.