Accepted_test

In this work, when studying the process of bioleaching of arsenic-containing polymetallic concentrates containing chalcopyrite, tennantite and sphalerite, at different temperatures and using different carbon sources, it was shown that the use of different carbon sources and an increase in temperature makes it possible to intensify the process of copper bioleaching. Moreover, a comparison of the results obtained with the results obtained in previous works shows that such effects can be determined by the ratio of sulfide minerals in the concentrate. The observed effect of the studied factors on the bioleaching process is largely determined by their impact on the microbial population that carries out the bioleaching process, since changes in the composition of the microbial populations of bioreactors were observed when the process conditions changed.