FIELD: biotechnology.
SUBSTANCE: method provides placement of sulfate-reducing bacteria in a synthetic medium containing metals, with addition of nutrients including solutions of vitamins, salts, cofactors, lactate, sodium sulfide, with further cultivation for 10 days at a temperature of 28°C, a precipitate collected from the bottom of the vessel, containing cobalt sulfide crystals, is dried. At that, the sulfate-reducing bacteria are represented by Desulfovibrio sp. ED-20, resistant to elevated concentrations of cobalt ions and deposited in the All-Russian Collection of Microorganisms of the Institute of Biochemistry and Physiology under the registration number VKM B-3048D.
EFFECT: invention allows to shorten the period of biochemical purification of highly concentrated sewage.
1 dwg, 2 tbl, 1 ex
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