Table 2 Main components and parameters of phosphogypsum.

From: Experimental research on the feasibility of phosphogypsum-enzyme induced carbonate precipitation (EICP) solidified loess

SO3

CaO

SiO2

P2O5

MgO

Al2O3

Fe2O3

Particle size

Specific surface area

43.4%

32.2%

9.4%

1.2%

0.4%

0.2%

0.1%

5–50 μm

102 m2/kg

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