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. 2021 May 30;18(11):5887. doi: 10.3390/ijerph18115887

Figure 1.

Figure 1

The removal efficiency of Cd(II) by CA with different concentrations (0, 5, 15, 30 mg) in the presence or absence of 15 mg CnZVI-6, respectively, in the solution (mean ± SE, n = 3). Different letters indicate significant differences among the CA groups with or without CnZVI-6 treatment at the p < 0.05 level according to Tukey test.