ars.els-cdn.com€¦ · Web view33.352 23.309 Total pore volume (cm 3 /g) 0.1142 0.1176 0.1224...
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Supporting information
Table 1S BET analysis of fly ash samples
FA-APCCharacterizatio
nUntreated
FADI
water0.01M HNO3
0.1M HNO3
0.1M Na2CO3
0.25M Na2CO3
Surface area (m2/g) 12.886 78.517 71.241 90.024 82.872 69.848
Total pore volume (cm3/g) 0.0203 0.1381 0.101 0.1228 0.1214 0.098559
Mean pore diameter (nm) 6.3049 6.6729 5.6735 5.4556 5.8589 5.6442
FA-LFCharacterizatio
nUntreated
FADI
water0.01M HNO3
0.1M HNO3
0.1M Na2CO3
0.25M Na2CO3
Surface area (m2/g) 31.46 28.354 29.315 26.849 33.352 23.309
Total pore volume (cm3/g) 0.1142 0.1176 0.1224 0.1195 0.1378 0.094038
Mean pore diameter (nm) 14.517 16.588 16.699 17.799 16.531 16.137
Coal fly ashCharacterizatio
n FA-LN FA-BT
Surface area (m2/g) 0.97067 2.5951
Total pore volume (cm3/g) 0.0013324 0.0027528
Mean pore diameter (nm) 5.4908 4.2431
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Table 2S Particle characterization of untreated fly ash
Name Particle size distribution (µm) Density(kg/m3)
Moisture(%)D10 D50 D90
FA-APC 2.35 8.71 69.70 2,207 3.72FA-LF 6.24 28.53 123.00 1,914 12.99FA-LN 2.35 29.37 156.67 2,288 0.13FA-BT 2.01 14.80 62.13 2,166 0.28
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Table 3S Particle size distribution of treated FA-APC and FA-LF
Name Particle size distribution (µm)D10 D50 D90
FA-APC
DI water 2.48 10.27 41.800.01M HNO3 2.88 11.13 46.930.1M HNO3 1.89 9.43 46.170.1M Na2CO3 2.88 11.63 39.070.25M Na2CO3 3.00 13.07 43.37
FA-LF
DI water 2.56 16.73 112.670.01M HNO3 3.97 20.23 127.000.1M HNO3 3.78 21.73 169.670.1M Na2CO3 2.57 13.23 75.100.25M Na2CO3 6.33 19.47 99.00
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Table 4S Concentration of Pb, Cd, Cr and As from TCLP method
Type of sampleConcentration (mg/L)
Pb(5.0 mg/L)
Cd(1.0 mg/L)
Cr(5.0 mg/L)
As(5.0 mg/L)
Untreated fly ashFA-APC 6.820 <0.005 0.095 <0.005FA-LF 0.220 <0.005 0.009 <0.005FA-LN <0.005 <0.005 0.093 1.979FA-BT 0.440 <0.005 0.029 0.103
Mortar
FA-APC
Non-treated <0.005 <0.005 0.309 <0.005DI water <0.005 <0.005 0.323 0.00270.01M HNO3
<0.005 <0.005 0.348 <0.005
0.1M HNO3 <0.005 <0.005 0.306 <0.0050.1M Na2CO3
<0.005 <0.005 0.314 <0.005
0.25M Na2CO3
<0.005 <0.005 0.291 <0.005
FA-LF
Non-treated <0.005 <0.005 0.260 <0.005DI water <0.005 <0.005 0.227 <0.0050.01M HNO3
<0.005 <0.005 0.199 <0.005
0.1M HNO3 <0.005 <0.005 0.200 <0.0050.1M Na2CO3
<0.005 <0.005 0.184 <0.005
0.25M Na2CO3
<0.005 <0.005 0.210 <0.005
FA-LN Non-treated <0.005 <0.005 0.246 0.006FA-BT Non-treated <0.005 <0.005 0.269 0.001
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Fig 1S Scanning electron microscope (SEM) illustrating morphology of
(A) FA-LN (B) FA-BT
A B
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Fig 2S XRD analysis of fly ashes
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MSWI FA 7.0 g + treated solution 35 mL
Filter and store at 4°C with pH<2
Digest in microwave digestion in 140°C for 3.5 minutes 240°C for 20 minutes.
Rotate at 30 ± 2 rpm for 60 minutes
Chemical analysis - ICP-OES - Potentiometric Method - Turbidimetric Method
Untreated fly ash and treated MSWI FA* 0.25 g + 7 mL of HNO3 + 1 mL of HCl
Filter and store at 4°C Treated MSWI FA
Fig 3S Extraction and digestion procedure of Cl-, SO42- and metals by treated solution (DI
water, 0.01M HNO3, 0.1M HNO3, 0.1M Na2CO3 and 0.25M Na2CO3)