Metals

Extraction efficiency (%) Single-metal leach

Extraction efficiency (%) Multi-metal leach

EDTA

EDDS

Hacac

CA

TA

EDTA

EDDS

Hacac

CA

TA

Cd

44

10

2

1

2

45

4

4

2

2

Cu

24

20

27

3

1

20

19

29

3

1

Ni

30

28

23

17

5

35

35

29

29

7

Pb

33

10

2

1

1

33

10

1

1

1

Zn

26

29

8

14

3

30

25

9

18

6