Metals

Extraction efficiency (%) Single-metal leach

Extraction efficiency (%) Multi-metal leach

EDTA

EDDS

Hacac

CA

TA

EDTA

EDDS

Hacac

CA

TA

Cd

42

28

2

11

9

60

8

8

16

17

Cu

33

10

46

19

10

32

6

28

23

6

Ni

33

14

51

30

16

49

5

51

50

29

Pb

49

9

3

15

7

53

2

7

16

10

Zn

29

6

31

17

14

31

4

17

19

17