Oxidation of dissolved organic matter in the effluent of a sewage treatment plant using ozone combined with hydrogen peroxide (O3/H2O2)

Enhanced electrocoagulation: New approaches to improve the electrochemical process (Review)

“…In particular, the oxidation of wastewater from molasses fermentation with ozone results in an effective color removal but is less effective in removing organic matter [42]. Similar results were obtained when ozone was used to treat textile wastewater, where ozone treatment proves to be very effective for complete color removal but provides only partial reduction of the chemical oxygen demand (COD) [43]. Also, previous research on ozone-coupled methods indicates that the ozonation of anaerobically pretreated wastes enhances significantly the organic removal in comparison to the ozonation of unpretreated wastes, and substrate conversions in the range of 40-67 % are obtained [44].…”

Ozone-based reclamation of an STP effluent

“…Considering that the chemical stage controls the ozonation process, as the concentration of dissolved ozone different from zero for all the experiments confirms, and assuming from operational conditions that the mineralization of a given organic compound takes place only by means of the hydroxyl radical, the mass balance of TOC to a volume element yields the following expression according to a kinetic model previously developed (Rosal et al 2009) …”

Treatability of Organic Constituents in the Paşaköy Wastewater Treatment Plant Effluent by O3and O3/H2O2

“…Therefore, in general AOPs are much more efficient in the removal of organic pollutants than ozonation alone (Andreozzi et al, 1999;Yang et al, 2005;Rosal et al 2009). It is also known that ozone and ozone-based AOPs are highly effective in degrading prominent endocrine disrupting compounds (EDC) with the exception of phthalates, which show resistance to ozone oxidation (Ning et al, 2007).…”