Investigation of furfural biodegradation in a continuous inflow cyclic biological reactor
| Autor: | K Nadafi, Gholamreza Moussavi, Mostafa Leili |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Biological Oxygen Demand Analysis
Environmental Engineering Chromatography Hydraulic retention time Chemical oxygen demand 02 engineering and technology Inflow 010501 environmental sciences Biodegradation 021001 nanoscience & nanotechnology Pulp and paper industry Furfural 01 natural sciences chemistry.chemical_compound Biodegradation Environmental Bioreactors chemistry Bioreactor Degradation (geology) Furaldehyde 0210 nano-technology Water Pollutants Chemical 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Water science and technology : a journal of the International Association on Water Pollution Research. 73(2) |
| ISSN: | 0273-1223 |
| Popis: | The performance of a continuous inflow cyclic biological reactor (CBR) containing moving media was investigated for the degradation of high concentrations of furfural. The effects of hydraulic retention time (HRT) and furfural initial concentrations (loading rate), as main operating parameters, on the bioreactor performance were studied. The results indicated that the CBR could remove over 98% of furfural and 71% of its chemical oxygen demand (COD) at inlet furfural concentrations up to 1,200 mg L−1 (2.38 g L−1 d−1), a 6-h cycle time and HRT of 12.1 h. The removal efficiency decreased slightly from 98 to 94% when HRT decreased from 12.1 to 10.5 h. The average removal efficiency of furfural and COD during the 345-day operational period under steady-state conditions were 97.7% and 82.1%, respectively. The efficiency also increased approximately 17.2% after addition of synthetic polyurethane cubes as moving media at a filling ratio of 10%. |
| Databáze: | OpenAIRE |
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