SUCCESSION OF CORROSION MICROBIAL ASSOCIATION AT BIOFILM FORMING ON THE STEEL SURFACE IN THE PRESENCE OF ORGANIC COMPOUNDS

The succession of corrosive microbial association of biofilm at steel destruction is shown. It is experimentally determined that organic compounds with biocide action influence on the dynamics of bacteria quantity corrosive microbial association at forming of biofilm on the low-carbon steel surface. The presence of quaternary salt of triazoloazepinium and derivative methylcarbamate considerably detains the development of sulphate-restored bacteria in biofilm, formed under condition of dominance of ammonifying and denitrifying bacteria and provides protection of steel from microbial corrosion.