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Further to the global trend of using wastes as secondary resources, also in the Czech and Slovak Republic there is an emphasis on the new benefication of wastes in terms of their further utilization and recycling in technological processes. The utilization of wastes does not only broaden the raw material base, but it also helps to save the primary sources of minerals as well as there are lower costs of waste transport, dumping and disposal thanks to their complex utilization. The paper deals with the application o...

The objective of the work was a laboratory examination of biodegradation of sewage sludge from the Central Wastewater Treatment Plant (ГљДЊ OV) in Ostrava, which had undergone physical pre-treatment by means of a spark discharge or UV radiation. The laboratory tests made use of a bacterial mixture of Rhodococcus sp. and Pseudomonas putida.