Abstract
The specific features of concentration of basic amino acids by electrodialysis with bipolar membranes have been studied. The relationships of the process efficiency, described by the concentration factor, with the current density, the concentration of the initial solution, and the nature and characteristics of cationexchange and bipolar membranes used in the system have been obtained. It has been shown that electroosmotic transport of water along with amino acid ions through cation-exchange membranes limits the concentration efficiency. The influence of the size and hydration of the side groups of amino acids on the magnitude of electroosmotic flux has been revealed.
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