Microwave-induced persulfate-hydrogen peroxide binary oxidant process for the treatment of dinitrodiazophenol industrial wastewater

A Critical Review on Removal of Gaseous Pollutants Using Sulfate Radical-based Advanced Oxidation Technologies

“…Relevant results ,,,, showed that compared with ultrasonic, photochemical and electrochemical activation, microwave activation had longer radiation distance because it can even penetrate solids, possessing a good prospect of application. In the field of water treatment, some researchers employed microwave to activate peroxides (i.e., H 2 O 2 , PS, and PMS) to generate free radicals to degrade organic contaminants from wastewater. ,,,,,,,, However, microwave-activated SO 4 • – -based AOTs are not suitable for wastewater treatment because most of the microwave radiation energy will be consumed in heating and evaporation of water, instead of activating oxidants. In the field of gaseous pollutants removal, several researchers ,, used catalysts under microwave activation to remove gaseous pollutants.…”

“…Microwave-Activated SO 4 • − -Based AOTs. Relevant results 157,158,159,160,161 showed that compared with ultrasonic, photochemical and electrochemical activation, microwave activation had longer radiation distance because it can even penetrate solids, possessing a good prospect of application. In the field of water treatment, some researchers employed microwave to activate peroxides (i.e., H 2 O 2 , PS, and PMS) to generate free radicals to degrade organic contaminants from wastewater.…”

“…In the field of water treatment, some researchers employed microwave to activate peroxides (i.e., H 2 O 2 , PS, and PMS) to generate free radicals to degrade organic contaminants from wastewater. 159,160,161,162,163,164,165,166,167 However, microwaveactivated SO 4 • − -based AOTs are not suitable for wastewater treatment because most of the microwave radiation energy will be consumed in heating and evaporation of water, instead of activating oxidants. In the field of gaseous pollutants removal, several researchers 168,169,170 used catalysts under microwave activation to remove gaseous pollutants.…”

Heterogeneous activation of H2O2/Na2S2O8 with iron ore from water distribution networks for pollutant removal

“…However, in order to achieve the same efficiency, the PS or PMS dose must be very high which lead to higher salinity in the system (Gu et al 2019). The dual-oxidant system could reduce oxidant usage and utilize their respective advantages in removal pollutants and have faster degradation rate (Chen et al 2020;He et al 2020;Song et al 2020). The combined application of HP and PS to generate •OH and SO †À 4 has been studied to treat various pollutants including levofloxacin (Epold et al 2015), erythromycin (Li et al 2017), trichloroethylene (Yan et al 2013), 2,4-dinitrotoluene (Xu et al 2019) and even industrial wastewater (Chen et al 2020).…”

A microwave radiation-enhanced Fe–C/persulfate system for the treatment of refractory organic matter from biologically treated landfill leachate

“…Microwaves (MW) radiation provides a means of activation with both thermal and non-thermal effects. 45,46 They can efficiently promote the activation efficiency of PS and reduce the activation energy and molecular bond strength required for system reaction by virtue of their thermal effects. In addition, their nonthermal effects can not only promote the activation of the oxidant, but also facilitate the regeneration of the lter and maintain the long-lasting surface reactivity.…”