N₂O and NO Emissions from CFBC Cofiring Dried Sewage Sludge, Wet Sewage Sludge with Coal and PE

Table 3

Composition of the ash of coal and sewage sludge.

Items	Coal (wt%)	Sewage sludge (wt%)
SiO2	58.72	36.33
Al2O3	21.26	21.08
Fe2O3	11.22	9.17
CaO	2.7	10
MgO	0.54	3.41
SO3	1.25	0.87
TiO2	0.84	3.49
K2O	2.05	6.85
Na2O	0.12	2.01
P2O5	0.22	2.08