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The paper deals with an examination of possible application of biodegradation in the decontamination of soil samples from international airport in Ostrava. The laboratory biodegradation tests were carried out with a pure bacterial culture of Pseudomonas putida, a pure laboratory culture of Rhodococcus sp, their mixture and a mixture prepared combining their media free of bacteria. The results of the paper imply that for biodegradation of airport pollutants is most suitable to apply a mixed bacterial culture of Pse...

The goal of the work was verification of floatabilty of bituminous coal from mine Staszicz with different collectors (Flotalex and Montanol), which are generally used in coal cleaning plants in Czech Republic and Poland. From the flotation and petrological results follows that floatability of given coal is approximately equal at Flotalex and Montanol application.