Hydrodynamics and mathematical modelling in a low HRT inverse fluidized-bed reactor for biological sulphate reduction
| Autor: | Luis C. Reyes-Alvarado, Elena Rustrian, Artin Hatzikioseyian, Eric Houbron, Eldon R. Rene, Piet N.L. Lens, Giovanni Esposito |
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| Přispěvatelé: | Reyes-Alvarado, Luis C., Hatzikioseyian, Artin, Rene, Eldon R., Houbron, Eric, Rustrian, Elena, Esposito, Giovanni, Lens, Piet N. L. |
| Rok vydání: | 2017 |
| Předmět: |
Hydraulic retention time
0208 environmental biotechnology Bioreactor Analytical chemistry Inverse Bioengineering 02 engineering and technology 010501 environmental sciences Wastewater 01 natural sciences Models Biological Lactate oxidation Bioreactors Sulphidogenesi Waste Water Effluent 0105 earth and related environmental sciences Mathematical modelling Sulphate reduction Chemistry Sulfates Hydrodynamic General Medicine Residence time distribution Sulfate 020801 environmental engineering Inverse fluidized-bed bioreactor (IFBB) Fluidized bed Hydrodynamics Oxidation-Reduction Biotechnology |
| Zdroj: | Bioprocess and biosystems engineering. 41(12) |
| ISSN: | 1615-7605 |
| Popis: | Biological reduction of sulphate at low hydraulic retention time (HRT) is presented in this paper. A sulphidogenic inverse fluidized-bed bioreactor (IFBB) was operated successfully at a progressively decreasing HRT from 1 to 0.125 days for a total of 155 days. Synthetic wastewater containing sulphate at a concentration of 745 (± 17) mg/L was used. COD was supplied as lactate in variable concentrations at COD/SO42− ratios of 1.2–2.4. The pH of the feed ranged between 5.2 and 6.2. The highest measured removal rates were 2646 and 4866 mg SO42−/L day at an HRT of 0.25 and 0.125 days, respectively, using a COD/SO42− ratio of 2.3. The biological sulphate reduction was limited by the influent COD concentrations at a COD/SO42− ratio |
| Databáze: | OpenAIRE |
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