Full Factorial Experimental Design Analysis of Reactive Dye Removal by Carbon Adsorption

Table 2

The results for ultimate and proximate analyses.

Ultimate analysis
Component (%)	Sunflower seed cake	Activated carbon
C	52.15	65.12
N	5.19	9.41
H	7.42	6.63
O^a	35.26	18.85
HHV (MJ/kg)	28.34	31.04
Proximate analysis of sunflower seed cake
Preliminary analysis	wt.%
Moisture	7.72
Ash	6.17
Volatile	75.15
Fixed carbon^a	10.95
Structural analysis	wt.%
Holocellulose	22.90
Hemicellulose	10.92
Extractive material	23.59
Oil	30.30
Lignin	33.12
Cellulose^a	12.53

 ^aEstimated by difference.