Application of Fenton's reagent as a polishing step for removal of UV quenching organic constituents in biologically treated landfill leachates.
When landfill leachate, with or without biological pretreatment, is discharged to publically owned treatment works (POTWs), it can interfere with the installed treatment facilities. Biological treatment is ineffective for the removal of some of the bio-refractory organic matter, including UV₂₅₄ quenching substances. Fenton's reagent treatment for biologically treated landfill leachates is examined in this study as a polishing step to make landfill leachates acceptable to POTWs. The optimum conditions for the Fenton's reagent treatment are explored. The molecular weight and hydrophobic-hydrophilic nature based fractions of the Fenton's treated leachate samples are analyzed to provide insight into the leachate fractions targeted by the Fenton's reagent. The results indicate that Fenton's reagent can act as a good compliment to biological treatment as it can remove leachate fractions which are widely considered to be bio-refractory. It exhibited good UV₂₅₄ absorbance removal by removing larger molecular weight humic substances and thus, can help solve the UV₂₅₄ quenching problem due to leachates discharged to POTWs.
['Gupta|Abhinav|A|', 'Zhao|Renzun|R|', 'Novak|John T|JT|', 'Douglas Goldsmith|C|C|']
D001578:Benzopyrans D019149:Bioreactors D002244:Carbon D006812:Humic Substances D006861:Hydrogen Peroxide D006863:Hydrogen-Ion Concentration D007501:Iron D014466:Ultraviolet Rays D064091:Waste Disposal Facilities D014865:Waste Disposal, Fluid D014874:Water Pollutants, Chemical
Landfill leachate Fenton’s treatment Hydrophobic–hydrophilic nature Molecular weight distribution UV(254) absorbance