Sanitary and microbiological assessment of wastewater when using a biological treatment system

Abstract

Abstract Microorganisms are natural biocatalysts capable of automatic selection and adaptation for wastewater treatment with any content of organic pollutants. Microbiological destruction of a wide range of polycarbon organic compounds occurs due to the formation of a microbial sequence. The sequence is that the end products (exometabolites) of “primary” destructor-microorganisms are the primary substrates for “secondary” destructor-microorganisms. The proposed concept is a spatial sequence for wastewater treatment containing a wide range of organic substances of high concentration. The essence of the biological treatment system was the introduction of microbiological preparations into wastewater according to an individually developed technology. At the same time, air was additionally injected into the water column by an aerator. A decrease in organic matter concentration showed a positive redox potential of the medium. Consequently, an increased value of the redox potential means a decrease in the concentration of organic compounds in wastewater, which is an indicator of treatment effectiveness.