Comparison of fenton and photo-fenton processes for livestock wastewater treatment.
In this study, the photochemical degradation of livestock wastewater was carried out by the Fenton and Photo-Fenton processes. The effects of pH, reaction time, the molar ratio of Fe(2 +)/H(2)O(2), and the Fe(2 +) dose were studied. The optimal conditions for the Fenton and Photo-Fenton processes were found to be at a pH of 4 and 5, an Fe(2 +) dose of 0.066 M and 0.01 M, a concentration of hydrogen peroxide of 0.2 M and 0.1 M, and a molar ratio (Fe(2 +)/H(2)O(2)) of 0.33 and 0.1, respectively. The optimal reaction times in the Fenton and Photo-Fenton processes were 60 min and 80 min, respectively. Under the optimal conditions of the Fenton and Photo-Fenton processes, the chemical oxygen demand (COD), color, and fecal coliform removal efficiencies were approximately 70--79, 70--85 and 96.0--99.4%, respectively.
Park
Jae-Hong
JH
Research Institute for Environmental Technology and Sustainable Development, Korea University, Seoul, Korea. jhong@korea.ac.kr
Cho
Il-Hyoung
IH
Chang
Soon-Woong
SW
D000818:Animals; D004305:Dose-Response Relationship, Drug; D005296:Ferrous Compounds / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D006861:Hydrogen Peroxide / Q000737:chemistry* / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry* / Q000494:pharmacology; D007700:Kinetics; D010084:Oxidation-Reduction; D010777:Photochemistry; D012680:Sensitivity and Specificity; D014865:Waste Disposal, Fluid / Q000379:methods*
C045076:Fenton's reagent; D005296:Ferrous Compounds; D006861:Hydrogen Peroxide; D007501:Iron