Oxidative Co-Treatment Using Hydrogen Peroxide with Anaerobic Digestion of Excess Municipal Sludge
| Autor: | Jesus A. Cacho Rivero, Makram T. Suidan, Jean-Marc Audic, Narain Madhavan, Philippe Ginestet |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Sewage
Biosolids Waste management Chemistry Ecological Modeling Hydrogen Peroxide Oxidative phosphorylation Oxidants Waste Disposal Fluid Pollution Refuse Disposal Bacteria Anaerobic Anaerobic digestion chemistry.chemical_compound Waste treatment Bioreactors Activated sludge Volatile suspended solids Environmental Chemistry Hydrogen peroxide Oxidation-Reduction Waste Management and Disposal Sludge Water Science and Technology Nuclear chemistry |
| Zdroj: | Water Environment Research. 78:691-700 |
| ISSN: | 1061-4303 |
| DOI: | 10.2175/106143005x101647 |
| Popis: | 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 (H 2 O 2 ). A maximum improvement in solid destruction of 15.2% was achieved in the overall process, with a dosage of 2.0 g H 2 O 2 /g influent volatile suspended solids (VSS influent ). 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 H 2 O 2 /gVSS influent ). Surprisingly, for 1.0 g H 2 O 2 /gVSS influents , 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text