Processing NPP Bottoms by Ferrocyanide Precipitation Page: 8 of 9
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WM'02 Conference, February 24-28, 2002, Tucson, AZ
Table VI. The material balance of both ways
1 way 2 way
Material Quantity cost, total cost, Quantity cost, total cost,
thousand thousand thousand thousand
rubles rubles rubles rubles
NaOH 38,6 t 7 270,2 39 t 7 273
HNO3 20t 3,25 65 20t 3,25 65
K4Fe(CN)6 - - - 2,4 t 175 420
Ni(NO3)2 - - - 2,16 t 52 112,3
Sorbent 24 m3 250 6000 2,4 m3 250 600
Cement 52 t 0,85 44,2 52 t 0,85 44,2
Filter - container 200 100 20000 20 50 1000
Container NZK 29,2 15 438 29,2 15 438
Total: 26817,4 2955,5 (7295,3*)
* - taking into account the radiation doze rate estimation
As it can be concluded from the data, given cost of expenditure on the second way is much less.
But in both ways the total cost is determined by cost of filters - containers significantly.
How it is possible to cut the costs?
According to the first way it is to refuse from expensive filters - containers and to use the filters
with sorbent, which are present against the stationary shield. The spent filters with sorbent should
be transported in the storage for solid waste in the returnable transport container.
The second way is a simplification of the filter - container and the use of stationary shield, refusal
from containers NZK and use of 200-liter barrels for cement compound, transportation of filters -
containers and barrels in the returnable transport container. The last can be universal both for a
barrel, and filters - containers on both ways.
It is also necessary to discuss the location of the deposit from ozonization and ferrocyanide
precipitation after mixing it with cement. Possible versions:
* container NZK;
* 200 - liter barrel.
According to the Russian norms the radiation doze rate from the transport container should not
exceed 10 mrem/hour at the distance of 1 m.
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Savkin, A. E.; T., Slastennikov Y. & G., Sinyakin O. Processing NPP Bottoms by Ferrocyanide Precipitation, article, February 25, 2002; Tucson, Arizona. (digital.library.unt.edu/ark:/67531/metadc785551/m1/8/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.