Научно-исследовательский геотехнологический центр Дальневосточного отделения РАН, Петропавловск-Камчатский, РФ

Очеретяна С. О., старший научный сотрудник, канд. биол. наук, blossom-so@yandex.ru

Иодис В. А., ведущий научный сотрудник, канд. техн. наук, iodisva@mail.ru

Рассматривается влияние ультразвукового облучения на численность ацидофильных хемолитотрофных бактерий месторождения Шануч, поскольку ультразвуковая обработка положительно влияет на скорость бактериально-химического выщелачивания руд. В ходе эксперимента интенсивность ультразвукового воздействия составила 4,2, 7,2 и 11,0 Вт/см² при частоте 22 кГц. Наименьшая инактивация наблюдалась при 4,2 Вт/см², тогда как при 11,0 Вт/см² гибель 99,75 % клеток происходила за значительно меньшее время. Показатели pH и Eh оставались стабильными, что свидетельствует о незначительном влиянии ультразвукового облучения на эти параметры среды. Исследование показало, что ультразвуковая обработка приводила к снижению численности бактерий в смешанной культуре, данный эффект возрастал с увеличением длительности и интенсивности излучения.

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