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Profile of the adsorption and elution of Dy (III) and Nd (III) ions with an OMA-adsorbent. Adsorption solution: 100 ppm Dy (III) and 100 ppm Nd (III), pH 2.0; elution solution: 1.0 M HCl; space velocity (SV) = 100 h−1; temperature = 25 °C; the total 1200 BV means that the adsorption–elution–adsorption process was operated for 12 h under the fixed space velocity of 100 h−1.
