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Oxidative Co‐Treatment Using Hydrogen Peroxide with Anaerobic Digestion of Excess Municipal Sludge
The effect of an oxidative co‐treatment on anaerobic digestion of a mixture of primary and waste activated sludge was investigated. The oxidant used in this study was hydrogen peroxide (H2O2). A maximum improvement in solid destruction of 15.2% was achieved in the overall process, with a dosage of 2.0 g H2O2/g influent volatile suspended solids (VSSinfluent). All configurations operated at this dosage also showed statistically significant increases in solids removal. A statistically significant enhancement in overall solids destruction was observed for the lower oxidant dosage (0.5 H2O2/gVSSinfluent). Surprisingly, for 1.0 g H2O2/gVSSinfluent, only one of the three configurations involving oxidative co‐treatment showed significant increases in solids destruction. Special attention was paid to the performance of this process relative to fecal coliforms destruction. Class A biosolids were obtained for all the different hydrogen peroxide dosages used when oxidative co‐treatment is combined with a two‐stage anaerobic digestion process.
Oxidative Co‐Treatment Using Hydrogen Peroxide with Anaerobic Digestion of Excess Municipal Sludge
The effect of an oxidative co‐treatment on anaerobic digestion of a mixture of primary and waste activated sludge was investigated. The oxidant used in this study was hydrogen peroxide (H2O2). A maximum improvement in solid destruction of 15.2% was achieved in the overall process, with a dosage of 2.0 g H2O2/g influent volatile suspended solids (VSSinfluent). All configurations operated at this dosage also showed statistically significant increases in solids removal. A statistically significant enhancement in overall solids destruction was observed for the lower oxidant dosage (0.5 H2O2/gVSSinfluent). Surprisingly, for 1.0 g H2O2/gVSSinfluent, only one of the three configurations involving oxidative co‐treatment showed significant increases in solids destruction. Special attention was paid to the performance of this process relative to fecal coliforms destruction. Class A biosolids were obtained for all the different hydrogen peroxide dosages used when oxidative co‐treatment is combined with a two‐stage anaerobic digestion process.
Oxidative Co‐Treatment Using Hydrogen Peroxide with Anaerobic Digestion of Excess Municipal Sludge
Cacho Rivero, Jesus A. (author) / Madhavan, Narain (author) / Suidan, Makram T. (author) / Ginestet, Philippe (author) / Audic, Jean‐Marc (author)
Water Environment Research ; 78 ; 691-700
2006-07-01
10 pages
Article (Journal)
Electronic Resource
English
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