Comparison Analysis of Coal Biodesulfurization and Coal’s Pyrite Bioleaching with Acidithiobacillus ferrooxidans

Table 2

The fitting results of S K-edge XANES spectra of measure sample with different reference spectra.

Sample	Percentage of contribution of standard spectra (%)
	Pyrite	Elemental sulfur	Sulfate	Jarosite	DBT
Raw coal	45.64	0	23.57	0	14.34
Residual coal (16 days)	35.67	28.32	10.16	18.99	13.86
Raw pyrite	100	0	0	0	0
Residual pyrite (24 days)	49.34	50.72	0	0	0