Biodegradation is a sustainable and efficient method for removing organic pollutants from the aquatic environment. We studied the biological purification of aqueous solutions from betaine organic matter under the action of bacterial strains of the genus Pseudomonas and determined the rate of decomposition in the presence of chloride ions and heavy metal cations. The bacteria showed lower activity in the presence of salts of heavy metals and performed more efficiently in the presence of chloride ions. Almost complete degradation of organic matter was observed on the 21st day. Thus, these strains of microorganisms can be used as decomposers of organic betaine compounds.

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