Abstract
Sapropel from inland Russian water reservoirs is becoming a popular raw material for medicinal purposes, production of sorbents, organomineral fertilizers, and food supplements. A comparative study of the granulometric and biological properties of humic substances obtained from sapropel in a typical way and using ultrasonic treatment of the relevant reaction masses was performed at the Institute of Limnology of the Russian Academy of Sciences. It is shown that the humic substances of sapropel with an increased content of nanoparticles used as veterinary preparations lead to a significant economic effect without using imported preparations.
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