| Autor: |
G. Kuncova, J. Koš Ál, J. Burkhard, T. Macek, J. Pazlarová, K. Demnerová, M. Macková, Frantisek Kastanek |
| Rok vydání: |
1997 |
| Předmět: |
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| Zdroj: |
Mobile Alternative Demilitarization Technologies ISBN: 9789401063272 |
| DOI: |
10.1007/978-94-011-5526-7_4 |
| Popis: |
Mixtures of indigenous soil bacteria were applied to remediate local ground waters and soil polluted with petroleum derived substances. Implementation of three months of remediation protocols resulted in a decline in the amount of petroleum derived contaminants from an initial concentration of 1-10 g.kg-1 soil dry weight to an average of 0.25 g.kg-1 soil dry weight. PCB biodegradation was studied using two biological models, bacterial co-cultures and plant cells cultivated in vitro. An industrial mixture of polychlorinated biphenyls (Delor 103) containing about 60 congeners of different degrees of chlorination (an average of three chlorines per biphenyl molecule) was used. Bacterial co-cultures acquired from enrichment protocols were tested in laboratory and semi-pilot experiments. Pilot experiments were performed in a two-step process in a ground water decontamination unit (working volume.5m3) which was operated semi-continuously. After 45 days of operation the initial PCB concentration was decreased to 20%. In laboratory experiments, PCB degradation using plant cells cultivated in vitro was also performed. Different cultures of various species differing in their growth parameters and morphology (amorphous, differentiated shoot forming or “hairy root”), transformed or nontransformed by Agrobacterium, were used. Differentiated or hairy root cultures exhibited better degradative abilities than undifferentiated amorphous cultures. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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