JPS59211899A - Method of solidifying radioactive waste - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Field of application] Inventive wide-radiation waste beam 4'/
1 (t) iml f This article relates to a method for assimilating radioactive residue suitable for use as a filler for 9 Mori 7 C silica temporary alkaline solution R/D.

[Enc! Al/J background]

For example, water intervention was indispensable for the hardening of the body and the beginning of the reaction, such as when an alkaline bath solution was used to reduce the radioactivity to almost all waste. This water also has the effect of lowering the viscosity of the arsenic, making it easier to handle. However, after curing, dehydration of free water C in the gun causes cranking, causing problems with the M integrity of the assimilate. Kokutsu 3-Jl, has class 1 water absorption r to prevent urinary stress,
In addition, an assimilation method is used that affects the health of the hydride form by at least 5°C4 (zeolite, etc.).

However, the prediction of the ability to absorb water in the assimilation recruitment four air is at Tabata, so the preparation of the solidified field viscosity V) adjustment is difficult. The disadvantage of being vc- is that it requires skill in the 114 ratio 1'c table.
)tsu;/j.

[Purpose of Power 3 Mei] /P: The purpose of the invention is to prepare a filler for a silicon plate alkaline solution and a
A mixture of 1-iiJ and ij and Iku Vyu ditto 1i1j τ 4gtorr water 1 pm VC has a bad influence on the crack teacher who does not give a healthy ejaculation 1 raw j ride! , the first method of making a l/l solidified body is to make a liquid.

[Summary of the invention]

The water in Keiki alkaline liquid exists in the form of free water and combined water. The name of each species depends on the gamma blackness and pressure brim composition of the carp. In addition, the professor of cranks of solidified materials explains that after hardening, free water evaporates, assimilates converge, and the stress concentration that occurs in the resulting mass is the original "C. Evaporation of free water: #
3, the humidity of the outside air and the moisture content of the solidified body are +
It ends with a sigh. -1 and - If the free water is evaporated before the alkaline water bath is hardened, and the free water is evaporated after hardening, the occurrence of solidification can be prevented. If a mixture of an alkaline water bath, a curing agent, and the above-mentioned rigid substance is mixed with VC in a vacuum and hit with a single blow, the evaporation of free water will be promoted and blocked before the formation of water, resulting in crank-free assimilation.坏?ll-Can be hard-made.

Figure 1 shows the content of free water M in the assimilate and the ignition rate of free water after hardening, per 1 conversion of 11 hardened eggs. From this figure, it is important to keep the degree of vacuum at 4 g torr or less to prevent free water from evaporating and to prevent the occurrence of cracks.

Above ((J)
No water-based deterioration! Not only can 12I be avoided, but the water-absorbing agent becomes difficult to absorb ('i, y), which reduces the cost of 16° monomerization.

[Example of the Central Association from the former side]

Hereinafter, one embodiment of the invention will be described with reference to FIG. Filler of alkaline silicate bath liquid and Portland cement are converted into 11+ calcium silicate (11+), and this mixture is filled with radioactive waste, Tobutsu Berent. At this time, defoaming is performed in a vacuum state of less than 100 Lorr to fill the container tightly and densely. 40to at 20C after the end of pond removal
From rr to V) Hold at 1:1 after the end of vc hardening.

For example, it is necessary to maintain a vacuum state of less than 4 g tOrr, - (: At the same time, the evaporation of free water in an aqueous alkaline solution is passed through 1 star, and when the curing is completed, it is ll ().
The degree of the hook and the humidity of the outside air and the equilibrium retention are similar.
]) The evaporation rate of Kome Yua IL water is less than l (chi dag-'). I hate the strength and water resistance of this unassimilated body.
It is possible to use a crank (and a snake) in town IZ: filtration radioactive waste 41 volumes 1 ratio 1 r1.

[Invention C) Effect]

According to Mokumoto's side, it is hardened in an assimilated body by using an alkaline solution as a bulk filler and by discharging it.
b1%': 40 torr or less V) Maintaining the VC in a vacuum state reduces the strength τ and solidifies it (ll%).
Since it can be prevented, it is possible to prevent the solidification of certain substances in all products. In addition, there is a first-class aid method that reduces the cost by about 30% compared to the one using the Nozeolite water absorbing agent.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the evaporation rate of free water and the evaporation rate of free water as a function of change during hardening. This is a schematic diagram of the method for producing assimilated radioactive waste and assimilate material that prevents generation of radioactive waste.
Hardening agent (Portland cement), 3...Durable finish improving substance (calcium silicate), 4...Radiation 1 raw + = proboscis helet 1, knee...11ζ'! N11j l'i product (
1 (1 (l electric 0th '1゛Lt), 6...111 Figure 09 degrees (Z j-・) cPr Funeral 2 Figure ■ ■ L

Claims (1)

[Claims] 1. Method for assimilating radioactive corpses, 2. Use of this vc, curing crop 1 → J bud beak, 6 proboscis and mixtures thereof as a silica alkaline bathing plant. When solidifying the filler by adding a substance that improves its durability after curing, this mixed substance is removed.
Hold in a vacuum state of more than G torr to promote evaporation of free water 1/J in the mixture and prevent the hardening after curing. Of course 1. iii method. 2. In the method of solidifying radioactive waste as described in 8JJb, the radioactivity described in paragraph 1 of Waste assimilation methods. 3, IJ'J ii self-radiation 1 life; in the solidification method of discarding 9, the law of I grouping V,) II'! Improve your first grade/
b9 It is a calcium salt such as silicate calcium % = ra calcium, which is a sign of the clock claim.
Section 1 of the Ground Surroundings i Self-loaded radiation 1 life 1 shot - Method for solidifying nesting materials. 4, ml tie 7i exchange ♂□ 93rd month! Motohiro H
Of course 1 □ #If Hi method Riko〉? So, Yucho water is free water that is not added to any of the soup stock (1), which is a water agent that improves the quality of water, and a drug that improves performance. The method of solidifying the radiation ordering of the axis of claim/ptl condolence song 6th battle.