Table 3 Phosphogypsum heavy metal content test results.

From: Research on strength characteristics and mechanism of cement stabilized phosphogypsum materials under dry and wet cycles

Test element

Constant volume V0/mL

Test Solution Element Concentration

C0/ug·L−1

Dilution factor

/f

Elemental concentration

C1/mg·L−1

Elemental content

Cx/mg·kg−1

Testing Conclusion

(Cd)

10

0.0620

50

3.10

0.26

Meets the requirements of national standards

(Pb)

10

1.5270

50

76.35

6.33

(Cr)

10

0.2920

50

14.60

0.96

(As)

10

0.1284

50

6.42

0.42

(Hg)

10

0.0484

50

2.42

0.16

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