Aerobic Sludge Digestion in the Presence of Chemical Oxidizing Agents. Part II. Fenton's reagent
K. Barbusiński1,2, K. Filipek2
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1Institute of Water and Wastewater Engineering, Silesian Technical University, 44-101 Gliwice, Poland
2Department of Water Protection, Central Mining Institute, 40-166 Katowice, Poland
Pol. J. Environ. Stud. 2000;9(3):145-149
Aerobic sludge digestion in presence of Fenton's reagent and hydrogen peroxide was examined. Fenton's reagent considerably improved aerobic digestion process in comparison with hydrogen peroxide as well as classical aerobic digestion. Application of Fenton's reagent also led to improvement of settling and dewatering properties of sludge and much better clarity of supernatant. Its drawback, however, is formation of chemical precipitate and apparent decrease in pH that may inhibit biochemical processes important for aerobic digestion efficiency.
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