Tritium removal device

Abstract

To solve the problem in which discharge of treated water to the ocean from Tokyo Electric Power Fukushima Daiichi nuclear power plant has began, but tritium cannot be removed even by an advanced liquid processing system (ALPS) and fishermen are opposed to the ocean discharge even though it is diluted with sea water.SOLUTION: Water coming out from an advanced liquid processing system is put into a water tank. An organic matter is added to this and the water is aerated from below. The water is aerated continuously for 10 days and is left as it is for five days. Thereby, tritium accumulates on the bottom together with excrement and also microorganism carcasses containing tritium accumulate on the bottom. This operation is performed three times. A lime flocculation agent is put into the water tank and is agitated. Clean water and sludge are separated from each other. The clean water is discharged to a sea area. The sludge is solidified by lime and cement, and is stored for a long time so as to be used for fertilizer.

Description

[Technical field] It is said that there is no tritium removal equipment. [Background technology]

[0001] Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Plant and other nuclear power plants do not remove tritium, so they simply release it into the ocean. [Patent documents]

[0002] Disclosure of the name

[0003] Tritium and water are separated using microorganisms.

[0004] Means for solving the problem

[0005] Water released from the multi-nuclide removal device is placed in a tank. Organic feed is added to the tank and aeration is carried out from the bottom for 10 consecutive days. This is then rested for five days, and the feces containing tritium accumulates at the bottom, as do the dead bodies of microorganisms. This process is repeated three times, and the tritium and water are separated. A lime flocculant is added to the tank and stirred. The clean water is discharged into the sea. The sludge is solidified with lime and cement. It is stored for a long time and used as fertilizer. I believe that 80% of the tritium can be removed. Some tritium also disperses into the air. The effect of the name

[0006] This will reduce the amount of tritium released into the ocean. We need to more than double the number of nuclear power plants we have now to prevent global warming. Currently, even operating nuclear power plants release tritium directly into the ocean, but with this technology, the amount of tritium can be reduced, allowing it to be released into the ocean at lower costs. There will also be no damage to the reputations of fishermen. EXAMPLES

[0007] [Brief description of the drawings]

[0008] [Figure 1] Tritium processing concept diagram 1 [Figure 2] Tritium processing concept diagram 2 [Explanation of symbols] 1 Tank 2 100% tritium 3 Organic matter 4 Aeration 5 Sludge 6 Flocculant 7 Mixer 8 Contains 10% tritium 9 Contains 10% tritium in air 10 Contains 80% tritium 11 Released into ocean 12 Recycled in core cooling water 13 Lime, cement 14 Hardening 15 Stored for 36 years 16 Organic fertilizer

Claims

[Claim 1] Even if the treated water is purified using advanced liquid processing systems (ALPS), it is not possible to remove tritium from the treated water. This method uses the power of microorganisms to remove tritium. The water from the multi-nuclide removal device is placed into a tank. Organic matter is added to this and agitated from the bottom. Agitation is continued for 10 days. A break is then given for 5 days, allowing the tritium to accumulate at the bottom along with the feces, and the carcasses containing tritium to also accumulate at the bottom. This process is repeated three times. Lime flocculant is added to the tank and the tank is stirred. The clean water and sludge are separated. The clean water is discharged into the sea. The sludge is solidified with lime and cement. It is then stored for a long time and used as fertilizer.

Images