Water quality indicators along the coast of the Kuban river in the city of Krasnodar

The article presents the results of analyzes of water samples along the coast of the Kuban River in the city of Krasnodar over a four-year period from 2018 to 2022. The assessment was carried out based on 14 water quality indicators: chlorides, nitrite nitrogen, nitrate nitrogen, ammonium ions, BOD5, COD, total iron, petroleum products, phosphates, sulfates, suspended substances, CCB, TCB, coliphages. Based on quantitative chemical and microbiological analyses, an excess was detected at the entrance to the city for BOD5, petroleum products, iron and at the exit from the city for BOD5, petroleum products, sulfates, iron, ammonium ion. The river was found to be polluted by CCB, TCB and coliphages. This is caused by the along the coast of multi-storey housing complexes and residential areas of the village type, in which local treatment facilities cannot cope with the multiply increased runoff due to the growth of the population in the housing complexes being put into operation. The main microbiological pollution comes from runoff from Krasnodar in the area of the Turgenevsky Bridge. Research is presented on the efficiency of extracting ammonium ions from model and real mixtures using a sorbent obtained by drying and calcining ash and slag waste from thermal power industry enterprises.