BOSNIA-HERZEGOVINA

Coal burned power plant KAKANJ and coal mine TUSNICA

Main physical and chemical parameters of coal from coal mine Tusnica
Tusnica
Humidity
Ash
Carbon
Volatile
%
31.3
18.3
19.6
30.8
Specific activities in coal from coal mine Tusnica (DRAGE)
Radionuclide Activity (Bq/kg)
1th sample 2nd sample
235U-235
 23.24 ± 0.81 20.42 ± 1.54
238U-238 504.70 ± 17.62 443.51 ± 33.52
232Th-232 17.82 ± 1.42 32.26 ± 3.02
226Ra-226 554.51 ± 3.55 504.82 ± 6.77
40K-40 39.51 ± 5.70 109.19 ± 8.35
Absorbed dose-rate in coal mine Tusnica
Location nGy/h
Waste of the surface soil layer 122.70
Lignite strip mine - surface layer 135.84
Separation point –lignite strip mine 148.99
Deposit of volcanic soil 118.31
Brown-coal strip mine “DRAGE” 321.35
Separation point of the strip mine “DRAGE” 261.46
Waste of the surface soil layer “DRAGE” 118.31

 

Specific activity of coals used in CBPP Kakanj (Bq/kg)

Coal mine Activity (Bq/kg)
U-235 U-238 Th-232 Ra-226 K-40
Breza 1.31 ± 0.18 28.43 ± 3.93 15.19 ± 1.05 22.22 ± 0.58 91.48 ± 3.95
Vrtliste 1.46 ± 0.26 31.82 ± 5.68 29.20 ± 1.54 53.22 ± 1.00 228.31 ± 6.15
Haljinici 1.34 ± 0.22 29.17 ± 4.88 12.26 ± 0.63 38.50 ± 0.88 80.16 ± 4.01
Stara jama 2.21 ± 0.30 48.03 ± 6.55 36.42 ± 1.74 61.47 ± 1.11 198.37 ± 5.25
Zenica 1.85 ± 0.15 40.95 ± 3.20 4.88 ± 0.74 15.78 ± 0.61 28.91 ± 2.38
Tusnica 23.24 ± 0.81 504.70±17.62 17.82 ± 1.42 554.51 ± 3.55 39.51 ± 5.70
Bila 2.15 ± 0.24 46.78 ± 5.22 12.86 ± 0.73 42.29 ± 0.82 108.41 ± 4.52
Gracanica 8.35 ± 0.45 181.47 ± 9.76 1.88 ± 0.36 172.34 ± 1.66 14.27 ± 2.89
Mean 5.24 ± 0.33 113.92 ± 7.11 16.31 ± 1.03 120.04 ±1.28 98.68 ± 4.35

 

Specific acivities in ash of coal mine Tusnica (DRAGE) burned in laboratory

Radionuclide
Bq/kg
U-235
89.56 ± 1.96
U-238
1945.24 ± 42.51
Th-232
41.17 ± 8.15
Ra-226
1869.92 ± 8.20
K-40
117.32 ± 13.13

 

Specific activities (Bq/kg) of fly and bottom ash from CBPP Kakanj

Radionuclide
Fly ash
Bottom ash
U-235
6.40 ± 0.98
5.42 ± 0.51
U-238
139.14 ± 21.46
117.59 ± 11.07
Th-232
44.44 ± 2.35
40.43 ± 1.93
Ra-226
120.65 ± 1.92
113.34 ± 1.79
K-40
355.13 ± 9.50
310.65 ± 7.18

 

Specific activities of samples from vilage Slapnica-Kakanj


’-MDC


Absorbed dose rate at the waste storage site Kakanj and points before and beyond of facility in the wind direction

Point
Absorbed dose rate [nGy/h]
1
157.75
2
166.52
3
219.10
4
162.13
5
179.66
6
144.61
7
175.28
8
170.90
Mean
171.99
Before
118.31
Beyond
131.46