Adsorption of COD in Coking Wastewater on Nitric Acid-Modified Blue Coke Activated Carbon
Table 3
Pore structure parameters, iodine value yield, and ash content of BACs.
Sample
SBET (m2·g−1)
Smicro (m2·g−1)
Vtotal (cm3·g−1)
Vmicro (cm3·g−1)
Vmicro/Vtotal (%)
dave (nm)
Iodine value (mg·g−1)
Y (%)
Aad
BAC-0
641.84
469.17
0.3720
0.2011
54.06
2.318
738.75
–
16.64
BAC-N1
693.59
435.14
0.3427
0.2020
58.94
2.008
776.14
87.23
2.16
BAC-N2
739.14
483.69
0.3744
0.2209
59.00
2.026
789.99
85.36
1.93
BAC-N3
801.51
519.38
0.3977
0.2374
59.69
1.985
828.17
82.41
1.61
BAC-N4
689.13
448.47
0.3460
0.2077
60.03
1.976
751.70
78.19
1.57
Note: SBET is the BET specific surface area, Smicro is the microporous specific surface area, Vtotal is the total pore volume, Vmicro is the microporous pore volume, Vmicro/Vtotal is the micropore ratio, and dave is the average pore size.
