Kinetics of the decolourization of a dyehouse effluent byProvidencia rettgeriODO
| Autor: | O.D. Olukanni, Akinniyi Adediran Osuntoki, Ayodeji Olushola Awotula |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Specific growth
Ecology Strain (chemistry) biology Chemistry Geography Planning and Development Kinetics Environmental engineering Providencia rettgeri biology.organism_classification Pulp and paper industry Pollution Reaction rate constant Wastewater Computers in Earth Sciences Nitrogen source Waste Management and Disposal Effluent |
| Zdroj: | International Journal of Environmental Studies. 70:515-526 |
| ISSN: | 1029-0400 0020-7233 |
| DOI: | 10.1080/00207233.2013.813794 |
| Popis: | The potential of an organism isolated from a mixture of azo dyes to decolourize textile wastewater was investigated. The organism identified by 16S rDNA as a strain of Providencia rettgeri was able to remove 94 ± 0.56% of the colour in a dyehouse effluent within 24 h in batch experiments. P. rettgeri strain ODO was able to use the effluent as sole carbon and nitrogen source. The optimum pH and temperature for colour removal ranged between 7–8 and 30–35 °C, respectively. Analysis of the data showed that the decolourization process exhibited first order kinetics with respect to the colour intensity and biomass concentration. The rate constant k = 5.6 × 10−3 L/gDCMh at 37 °C. The specific growth rate, μ, of the organism was 0.013 h−1 while the mean doubling time was 52.9 h. The results indicated that P. rettgeri strain ODO has the potential for colour removal from textile effluent. |
| Databáze: | OpenAIRE |
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