Advantages and disadvantages of techniques

The UREX+ separations strategy provides the advantage of a focused optimization approach for the recovery of products that meet pre­determined key objectives for a fuel cycle or a waste disposal strategy. The concept has been successfully tested for the recycle of LWR SNF for a number of different product and waste form configurations. The complexity

Table 7.5 UREX+3 demonstration results. Percent distribution of process effluents

Year

2003

2007

Component

Product Raffinate

Product

Raffinate

UREX

U

99.96

0.02

99.999

0.001

Tc

94.40

4.60

NA

NA

CCD-PEG

FPEX

Cs

NA

NA

(100)

BD

Sr

NA

NA

NPEX

>99.9

<0.1

Pu

99.6

0.4

99.93

0.07

Np

70.3

29.69

100

Bkgd

Cyanex 301

TRUEX*

Am

99.98

0.02

100

BD

RE

27.2

82.8

NA

NA

* TALSPEAK was omitted from 2007 UREX+3a demonstration. BD: Below detection limit.

Bkgd: Background.

NA: Not applicable.

of this separations approach increases as the desired number of products or waste forms increases. As this complexity increases so does the cost of the separations facility. The use of various separations modules requires that the integrated process be tested in order to determine any incompat­ibilities between process modules.