Author(s)

Han Doudou

Corresponding Author

Han Doudou

ABSTRACT

Freshwater is a valuable resource, which is closely related to human life and production. At present, the shortage of freshwater resources has become an important factor restricting social development. In this paper, through the self-designed ACF electrode desalination device, the single factor analysis method was used to study the influencing factors of desalination effect. The electrochemical performance of activated carbon fibers (ACFs) in the process of electroadsorption was analyzed. The kinetics and thermodynamics of electroadsorption were discussed. The selective adsorption properties of ACFs for different cations in multi-component alkali metal and alkaline earth metal cationic solutions were studied. The multivalent cation adsorption rate and adsorption capacity are large, but the desorption rate is low; the monovalent cation adsorption rate and adsorption capacity are small, but the desorption rate is high; the same cation cation, the smaller the cation radius, the easier the cation is adsorbed. Since the by-product of the electrode in the electrosorption operation can inhibit the proliferation of microorganisms, the normally operated electrosorption device is less prone to microbial contamination.

KEYWORDS

Activated carbon, Electroadsorption technology, Cation