JAEA-Testing-2011-007.pdf:46.74MB - 日本原子力研究開発機構

JAEA-Testing 2011-007
JAEA-Testing 2011-007
(4) Pump the pool water into 1 ton plastic tanks for the treatment using zeolite
(first treatment)
For the treatment in 1 ton plastic tanks, one group will be responsible for six
tanks. One group will consist of approximately six members. In addition, an
operator responsible for preparation of zeolite and flocculant (PAC solution) and
an operator responsible for radioactivity measurement are required.
Pump up the pool water into the 1 ton plastic tanks for the treatment with zeolite.
The treatment involves adsorption of cesium dissolved in water with the zeolite
and flocculation/precipitation of the zeolite together with blue-green algae and
mud with the flocculant (PAC solution), as shown in the figure below.
Pump
Zeolite:
100g
1 ton plastic tank
Flocculant (PAC)
solution: 150 mL
Measure radioactivity
concentration and pH of the
supernatant
(a) Feed 100 g of zeolite into each of the six 1 ton plastic tanks.
Write down the fed amount of zeolite and the fed time in the form, “Record 10:
Work record using 1 ton plastic tanks (1st treatment)”.
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Pump
Neutralizer
(as necessary)
Bag filter
Measure
radioactivity
concentration
Discharge