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Abstract
Equilibrium sorption of copper and related heavy metal cations by dye‐coated moss, Calymperes delessertii, Desch. was investigated under various conditions. Parameters studied include contact time, different initial concentrations, pH, presence of chelators and other metal cations. Results showed that modification through dye‐coating improved the sorption capacity of the moss. The application of such a system to electroplating waste is discussed.