Enhancement of Anaerobic Digestion of Excess Municipal Sludge with Thermal and/or Oxidative Treatment
| Autor: | Jesus A. Cacho Rivero, Makram T. Suidan, Narain Madhavan, Philippe Ginestet, Jean-Marc Audic |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Environmental Engineering
Waste management Chemical oxygen demand chemistry.chemical_element Thermal treatment Nitrogen Methane Anaerobic digestion chemistry.chemical_compound chemistry Environmental chemistry Volatile suspended solids Environmental Chemistry Digestion Hydrogen peroxide General Environmental Science Civil and Structural Engineering |
| Zdroj: | Journal of Environmental Engineering. 132:638-644 |
| ISSN: | 1943-7870 0733-9372 |
| DOI: | 10.1061/(asce)0733-9372(2006)132:6(638) |
| Popis: | The use of thermal and/or oxidative treatment to enhance anaerobic digestion of excess municipal sludge was evaluated. Different reactor configurations were studied. A “moderate” temperature (90°C) was used in the thermal treatment and hydrogen peroxide was the oxidant. Thermal treatment alone did not increase solids destruction. A maximum of 15.2% increase in volatile suspended solids (VSS) destruction was observed with the oxidative treatment. A synergistic effect was observed when both treatments were combined. The increase in VSS destruction when both cotreatments were applied (oxidative and thermal) ranged between 27.2 and 29.0%, depending on the reactors configuration. Parameters such as methane production, chemical oxygen demand removal, nitrogen and volatile fatty acids concentrations, and fecal coliforms removal were also evaluated for the different configurations studied. |
| Databáze: | OpenAIRE |
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