The paper contains primary results of the wider investigations leading to development of the bioremediation technology of soil and buildings debris from the industrial areas contaminated by toxic mercury. The aims of the experiments were ascertainment of the P. chrysosporium resistance to Hg(II) contained in the base material and selection of the optimum „inoculum” solid medium for the growth of the fungus in the industrial scale. The seven different variants of solid laboratory media were checked and as the best the synthetic Čapek medium with the addition of yeasts as a source of the B-vitamins were found. The maximum Hg²⁺ concentration tolerated by fungus growing on this medium was 350 mg Hg²⁺ × dm^-3. The further experiments with the model and the natural soil with different additions showed that the best growth of P. chrysosporium was obtained on the compost soil with the scraps of the Miscanthus giganteus. The results obtained in this work proved that P. chrysosporium has a great resistance to Hg2+ in the medium and may be considered as an organism for the bioremediation of the soil material contaminated with the toxic mercury compounds.

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