Elimination of 4-nitrophenol from water by oil shale
In this work, oil shale was used for elimination of a model potential anthropogenic pollutant, 4-nitrophenol. Sorption experiments were utilized under various different conditions; oil shale was pretreated with sodium azide to inhibit the microorganisms’ activity, and the results were compared to th...
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| Dokumentumtípus: | Könyv része |
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2018
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
24 |
| Kulcsszavak: | Olajpala - geológia - Magyarország, Környezetkémia, Víztisztítás |
| Online Access: | http://acta.bibl.u-szeged.hu/56275 |
| Tartalmi kivonat: | In this work, oil shale was used for elimination of a model potential anthropogenic pollutant, 4-nitrophenol. Sorption experiments were utilized under various different conditions; oil shale was pretreated with sodium azide to inhibit the microorganisms’ activity, and the results were compared to those without pretreatment of oil shale. After a 24-hour equilibration time, in the presence of sodium azide pretreated oil shale, the concentration of 4-nitrophenol was higher than in the case of unpretreated oil shale, which indicates that during the sorption process not only sorption, but also decay of 4-nitrophenol took place. Desorption isotherm was also determined. Degradation experiments were applied to investigate how this persistent molecule transforms in the presence of oil shale. Sodium azide pretreated oil shale and MnCl2 additive were also used to examine the effect of microorganisms and manganese(II) ion on the transformation of 4-nitrophenol. It was found that the presence of manganese(II) ion speeded up, while the sodium azide slowed down the transformation of the model molecule. |
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| Terjedelem/Fizikai jellemzők: | 43-47 |
| ISBN: | 978-963-306-623-2 |