Treatment method of radioactive iodine waste
A technology of radioactive iodine and a treatment method, which is applied in the field of radioactive iodine waste treatment, can solve the problems of secondary pollution, poor stability of the solidified body, and cannot satisfy the long-term disposal of radioactive iodine, etc., and achieves the effect of a simple process.
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Embodiment 1
[0018] Embodiment 1: the processing of radioactive iodine waste (one)
[0019] Adopt the following method steps to carry out the processing of radioactive iodine waste:
[0020] (1) 280g of radioactive iodine waste (the source is gaseous I discharged from nuclear waste) 2 ) react with 80g sodium hydroxide to obtain radioactive iodine waste conversion product powder.
[0021] (2) Mix 45g of 4A zeolite with 55g of radioactive iodine waste conversion powder, grind in a colloid mill (Langfang Guantong Machinery Co., Ltd., JF-130 type), dry at 80°C for 12h, weigh, add deionized Water (the mass ratio of solid to liquid is 1:10) is further ground, refined and homogenized to obtain a wet and uniform mixture (the average particle size of the solidified product is 1 μm).
[0022] (3) The wet and uniform mixture is hydrolyzed and evaporated to dryness in a muffle furnace (Tianjin Test Instrument Co., Ltd., MFLC-7 / 12P type) (temperature is 200 ° C, time is 60 min), then heated and sinte...
Embodiment 2
[0024] Embodiment 2: the processing of radioactive iodine waste (two)
[0025] Adopt the following method steps to carry out the processing of radioactive iodine waste:
[0026] (1) 280g of radioactive iodine waste (the source is gaseous I discharged from nuclear waste) 2 ) react with 120g sodium hydroxide to obtain radioactive iodine waste conversion product powder.
[0027] (2) Mix 65g of 4A zeolite with 35g of radioactive iodine waste conversion powder, grind in a colloid mill (Langfang Guantong Machinery Co., Ltd., JF-130 type), dry at 80°C for 12h, weigh, add deionized Water (the mass ratio of solid to liquid is 1:5) is further subjected to grinding, refinement, and homogenization treatment to obtain a wet and uniform mixture (the average particle size of the cured product is 5 μm).
[0028] (3) The wet and uniform mixture is hydrolyzed and evaporated to dryness in a muffle furnace (Tianjin Test Instrument Co., Ltd., MFLC-7 / 12P type) (temperature is 250 ° C, time is 10 ...
Embodiment 3
[0030] Embodiment 3: the processing of radioactive iodine waste (three)
[0031] Adopt the following method steps to carry out the processing of radioactive iodine waste:
[0032] (1) 320g radioactive iodine waste (the source is the gaseous I discharged in the nuclear waste) 2 ) react with 80g sodium hydroxide to obtain radioactive iodine waste conversion product powder.
[0033] (2) Mix 50g of 4A zeolite with 50g of radioactive iodine waste conversion powder, grind in a colloid mill (Langfang Guantong Machinery Co., Ltd., JF-130 type), dry at 80°C for 12h, weigh, add deionized Water (the mass ratio of solid to liquid is 1:8) is further subjected to grinding, refinement, and homogenization treatment to obtain a wet and uniform mixture (the average particle size of the cured product is 3 μm).
[0034] (3) The wet and uniform mixture is hydrolyzed and evaporated to dryness in a muffle furnace (Tianjin Test Instrument Co., Ltd., MFLC-7 / 12P type) (temperature is 220 ° C, time is...
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