Table 6 Leaching metals results.

From: Cadmium adsorption performance and mechanism from aqueous solution using red mud modified with amorphous MnO2

Metals

Al

Mg

Ca

Cd

Pb

Cd

Cr

As

Zn

Cu

Hg

Mn

RM (mg L−1)

3.55

39.5

12.2

–

0.08

–

0.291

0.267

0.03

–

–

–

MRM (mg L−1)

0.04

–

–

–

0.01

–

0.04

–

0.01

–

–

–

GB 5749-2006 (mg L−1)

0.2

–

450

0.005

0.01

0.005

0.05

0.01

1.0

1.0

0.001

0.1

  1. “–” means not required.
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