Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: effects on sludge disintegration, methane production, and methanogen community structure
| Autor: | Changsoo Lee, Youngseob Yu, Jaai Kim |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Environmental Engineering
Molecular Sequence Data Bioengineering Alkalies Waste Disposal Fluid Methanosaeta RNA Ribosomal 16S Sodium Hydroxide Methane production Waste Management and Disposal Phylogeny biology Bacteria Base Sequence Sewage Renewable Energy Sustainability and the Environment Chemistry Denaturing Gradient Gel Electrophoresis Environmental engineering General Medicine Methanosarcina Models Theoretical biology.organism_classification Methanogen Cold Temperature Anaerobic digestion Activated sludge Biodegradation Environmental Methane Nuclear chemistry |
| Zdroj: | Bioresource technology. 144 |
| ISSN: | 1873-2976 |
| Popis: | Low-temperature thermo-alkaline pretreatment of waste activated sludge (WAS) was studied, within the region of 0-0.2 M NaOH and 60-90°C, for the effects of NaOH concentration and temperature on sludge degradability in anaerobic digestion (AD). Significant disintegration of sludge solids (up to 75.6%) and an increase in methane production (up to 70.6%) were observed in the pretreatment trials. Two quadratic models were successfully generated by response surface analysis (R(2)>0.9, p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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