Aim of the study:
Assessment of the revitalization process and achievement of the treatment effects intended in the process

Material and methods:
The author carried out selected tests and performed a process evaluation along with the other results made by the research laboratories. The research concerned measurements of bottom sediment thickness, water transparency and selected physicochemical analyzes of quality parameters of water from the reservoir during the revitalization process.

Results and conclusions:
The obtained results are very satisfactory, as a high level of reduction of bottom sediments was achieved at some measuring points by over 1 m. There was an improvement in water transparency, physical and chemical parameters did not show deterioration of water quality during the intensive biodegradation process of the organic fraction deposited in bottom sediments. Based on the results presented in the article, it can be stated that the microbiological revitalization processes carried out are very effective methods of purifying surface water pollution.