STUDY OF MICROBOCENOSIS OF CHEMOLITHOTROPHIC BACTERIA OF IN SITU LEACHING SOLUTIONS OF "KANZHUGAN" URANIUM DEPOSITS
For studying of microbiocenoses, microbiological investigations of industrial solutions PR, BP, CNS and settling reservoir № 6 of Kanzhugan deposits for detection and isolation of hemolitautotrophic bacteria of four physiological groups, which under theoretical assumptions could promote underground bacterial leaching of uranium, was carried out. These sulfate-reducing and denitrifying bacteria A.ferrooxidans and A.thiooxidans. In the process of study of microﬂora of uranium deposits of Southern Kazakhstan were guided by two positions: 1) study conditions of development of microorganisms, and also 2) ﬁnd out and consider microorganisms, which are «selected by the environment». Therefore, the degree of microbial activity in the ecosystem determined based on their number and chemical analyses of samples. Also, experiences with cultures А.ferrooxidans and А.thiooxidans, which played a signiﬁcant role in uranium oxidation, have been performed.