Assessment of the microorganism composition immobilized on carriers of different types

Morphological methods for assessing the state of activated sludge or biofilm include hydrobiological analysis, which is widespread in the technological control of the operation of existing treatment facilities, in which indicator protozoa are used as test objects to assess the state of sludge or biofilm. In combination with experimental studies, the detection of indicator microorganisms of the biological film was carried out using optical microscopy, which provided the opportunity to study the composition and structure of microbial communities. Assessment of water quality by the species composition of biofilm organisms in carriers of different types shows that biofilm carriers of a wheel shape Ø 9.95 mm are most suitable for effective wastewater treatment among the studied carriers.