Application of O3/PMS Advanced Oxidation Technology in the Treatment of Organic Pollutants in Highly Concentrated Organic Wastewater: A Review

Abstract

The ozone/peroxymonosulfate (O3/PMS) system has attracted widespread attention from researchers owing to its ability to produce hydroxyl radicals (•OH) and sulfate radicals (SO4•−) simultaneously. The existing research has shown that the O3/PMS system significantly degrades refinery trace organic compounds (TrOCs) in highly concentrated organic wastewater. However, there is still a lack of systematic understanding of the O3/PMS system, which has created a significant loophole in its application in the treatment of highly concentrated organic wastewater. Hence, this paper reviewed the specific degradation effect, toxicity change, reaction mechanism, various influencing factors and the cause of oxidation byproducts (OBPs) of various TrOCs when the O3/PMS system is applied to the degradation of highly concentrated organic wastewater. In addition, the effects of different reaction conditions on the O3/PMS system were comprehensively evaluated. Furthermore, given the limited understanding of the O3/PMS system in the degradation of TrOCs and the formation of OBPs, an outlook on potential future research was presented. Finally, this paper comprehensively evaluated the degradation of TrOCs in highly concentrated organic wastewater by the O3/PMS system, filling the gaps in scale research, operation cost, sustainability and overall feasibility.

Treatment of Water and Wastewater: Challenges and Solutions

“…Integrated ozone-based AOPs are more effective than ozone alone in the removal of organic compounds [25]. Yan et al [26] stated that the ozone/peroxymonosulfate (O 3 /PMS)-based technique has a high potential in the treatment of organic wastewater effluents; their investigation found that 85.6% of COD, 81.7% of chromaticity, and 77.6% of dissolved organic carbon (DOC) were removed. Another study found that >49% of alachlor, as an emerging contaminant, was removed by ozone/hydrogen peroxide (O 3 /H 2 O 2 ) [27].…”

Combination of ozone-based advanced oxidation process and nanobubbles generation toward textile wastewater recovery

“…Several approaches have been introduced within the past 2 decades focusing on the treatment of organics-contaminated wastewater, and the common method in the current applications is chemical oxidation (Asghar et al, 2015;Sun et al, 2015). Among other chemical oxidation processes, AOP is categorized to be a versatile approach in wastewater technology due to the in situ formation of reactive oxygen species (ROS) such as hydroxyl radicals (OH•) (Yan et al, 2022;Yasasve et al, 2022;Aljedaani et al, 2023).…”