Biosorbent ability of metals by microorganisms from the collection fund after long-term storage

Abstract

Sorbents based on microorganisms are used to solve a wide range of problems and are used for various purposes: natural purification of water bodies, determination of the level of pollution of natural waters using indicator microorganisms, treatment of wastewater contaminated with metal ions. The results showed that after 16 or more years of storage by the method of periodic reseeding, the studied cultures retained their biosorbing properties. At the same time, the culture of Str.fradia 7 showed the least activity, which sorbed 36.2% from the model solution. The most effective were 3 strains of streptomycetes - Str.griseorubiginosus 83, Str.griseocastaneus 67, Str.iyakirus 49, whose activity ranged from 65.2 to 70.6%. Biosorption of other cultures in the range of 38.8-63.4%.