Application of immobilized and granular dried anaerobic biomass for stabilizing and increasing anaerobic bio-systems tolerance for high organic loads and phenol shocks
| Autor: | Isam Sabbah, Chaim Sheindorf, Nedal Massalha, Asher Brenner |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Environmental Engineering
Polyurethanes Biomass chemistry.chemical_element Bioengineering Euryarchaeota chemistry.chemical_compound Bioreactors medicine Bioreactor Phenol Anaerobiosis Waste Management and Disposal biology Renewable Energy Sustainability and the Environment Environmental engineering Washout General Medicine Cells Immobilized Pulp and paper industry biology.organism_classification chemistry Carbon Anaerobic exercise Activated carbon medicine.drug |
| Zdroj: | Bioresource technology. 197 |
| ISSN: | 1873-2976 |
| Popis: | This study focuses on the stability and tolerance of continuous-flow bioreactors inoculated with anaerobic methanogens in three different configurations: (R1) dried granular biomass immobilized in PAC-enriched hydrophilic polyurethane foam, (R2) dried granular biomass, and (R3) wet granular biomass. These systems were tested under two different organic loading rates (OLR) of 6.25 and 10.94 (gCOD/(Lreactor∗d)), using a glucose-based synthetic mixture. The effect of an instantaneous shock load of phenol (5g/L for three days), and of phenol inclusion in the feed (0.5g/L) were also tested. At the lower OLR, all reactors performed similarly, however, increasing the OLR lead to a significant biomass washout and failure of R3. Biomass in R1 was more tolerant to phenol shock load than R2, though activity was recovered in both systems after about one month. PAC provided protection and shortened the adaptation time for 0.5g/L phenol that continuously was fed. |
| Databáze: | OpenAIRE |
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