Table 1.

Main chemical compositions of the waste residues.

Waste Residue	SiO2	Fe2O3	Al2O3	CaO	MgO	MnO	P2O5	SO3	IL
SS	9.04	27.23	1.88	41.50	10.24	3.14	1.55	-	1.65
S	32.30	0.20	14.30	39.00	7.70	-	-	1.00	1.89
DG	1.50	0.29	0.80	41.40	0.12	-	-	55.43	-