ИЗМЕНЕНИЕ МИКРОФЛОРЫ ДОННЫХ ОСАДКОВ, УЧАСТВУЮЩЕЙ В ПРОЦЕССАХ РАЗЛОЖЕНИЯ УГЛЕВОДОРОДОВ В АНАЭРОБНЫХ УСЛОВИЯХ

Long-term experiments were conducted to study quantity dynamics of the anaerobic bottom sediment microflora in the Zeikus medium. For 7 months variations in quantity were observed in hydrocarbon-oxidizing, sulphate-reducing and denitrifying microorganisms. The number of hydrocarbon-oxidizing bacteria increased considerably by the middle of the experiment (from 103 to 107 cell/ml), by the end of the experiment it fell to the initial values. By the end of the experiment a group of denitrifying microorganisms prevailed over sulphate-reducing ones in the microbiocenosis. It is found that under anaerobic conditions oxidation of crude oil is extremely slow.