CN219658399U - Radioactive waste liquid treatment device - Google Patents
Radioactive waste liquid treatment device Download PDFInfo
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- CN219658399U CN219658399U CN202320252908.6U CN202320252908U CN219658399U CN 219658399 U CN219658399 U CN 219658399U CN 202320252908 U CN202320252908 U CN 202320252908U CN 219658399 U CN219658399 U CN 219658399U
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- Prior art keywords
- reverse osmosis
- water tank
- radioactive waste
- ultrafiltration
- multifunctional water
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- 239000007788 liquid Substances 0.000 title claims abstract description 91
- 239000002901 radioactive waste Substances 0.000 title claims abstract description 88
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 196
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000004140 cleaning Methods 0.000 claims abstract description 61
- 239000012528 membrane Substances 0.000 claims abstract description 42
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 17
- 238000000108 ultra-filtration Methods 0.000 claims description 85
- 238000010612 desalination reaction Methods 0.000 claims description 32
- 238000011033 desalting Methods 0.000 claims description 31
- 230000002285 radioactive effect Effects 0.000 claims description 14
- 239000000706 filtrate Substances 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000005406 washing Methods 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 238000010926 purge Methods 0.000 claims description 11
- 239000012141 concentrate Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 7
- 238000009296 electrodeionization Methods 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000012466 permeate Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 42
- 239000011550 stock solution Substances 0.000 description 7
- 239000006228 supernatant Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The utility model relates to a radioactive waste liquid treatment device, which comprises a multifunctional water tank, a reverse osmosis system and a cleaning pump, wherein the reverse osmosis system is communicated with an outlet of the multifunctional water tank through a reverse osmosis pipeline, and the reverse osmosis system comprises a reverse osmosis membrane; the cleaning pump is arranged on a first cleaning pipeline which is communicated with the multifunctional water tank and the reverse osmosis system; the multifunctional water tank is provided with a first state for containing radioactive waste liquid and a second state for containing reverse osmosis cleaning solution; when the device is in the first state, the reverse osmosis pipeline is used for guiding the radioactive waste liquid in the multifunctional water tank into the reverse osmosis system, and the reverse osmosis membrane is used for performing reverse osmosis treatment on the radioactive waste liquid flowing into the reverse osmosis system through the reverse osmosis pipeline; when the reverse osmosis membrane is in the second state, the reverse osmosis pipeline is blocked, and the cleaning pump can pump reverse osmosis cleaning solution in the multifunctional water tank to the upstream of the reverse osmosis membrane through the first cleaning pipeline so as to flush the reverse osmosis membrane.
Description
Technical Field
The utility model relates to the technical field of waste liquid treatment, in particular to a radioactive waste liquid treatment device.
Background
A large amount of radioactive waste liquid can be generated in the operation and maintenance of the nuclear power plant, and the radioactive waste liquid can cause great harm to the environment due to direct discharge of the radioactive waste liquid, and the radioactive waste liquid is filtered by using a reverse osmosis system in the prior art. However, when the reverse osmosis system is used for filtering the radioactive waste liquid, dirt in the radioactive waste liquid is easy to adhere to the upstream of the reverse osmosis membrane of the reverse osmosis system, and a decontamination device is required to be arranged for cleaning the reverse osmosis membrane, so that the reverse osmosis membrane is inconvenient to clean, and the cost for treating the radioactive waste liquid is increased.
Disclosure of Invention
Accordingly, it is necessary to provide a radioactive waste liquid treatment apparatus for solving the problem of cleaning a reverse osmosis membrane.
A radioactive waste liquid treatment apparatus comprising:
a multifunctional water tank;
the reverse osmosis system is communicated with the outlet of the multifunctional water tank through a reverse osmosis pipeline and comprises a reverse osmosis membrane;
the cleaning pump is arranged on a first cleaning pipeline which is communicated with the multifunctional water tank and the reverse osmosis system;
the multifunctional water tank is provided with a first state for containing radioactive waste liquid and a second state for containing reverse osmosis cleaning solution;
when the multifunctional water tank is in the first state, the reverse osmosis pipeline is used for guiding the radioactive waste liquid in the multifunctional water tank into the reverse osmosis system, and the reverse osmosis membrane is used for performing reverse osmosis treatment on the radioactive waste liquid flowing into the reverse osmosis system through the reverse osmosis pipeline;
when in the second state, the reverse osmosis pipeline is blocked, and the cleaning pump can pump the reverse osmosis cleaning solution in the multifunctional water tank to the upstream of the reverse osmosis membrane through the first cleaning pipeline so as to flush the reverse osmosis membrane.
In one embodiment, the system further comprises a first return line communicating the multifunction tank with the reverse osmosis system;
when in the first state, the first return line is used for the reverse osmosis concentrated solution generated by the reverse osmosis system for treating the radioactive waste liquid to flow back to the multifunctional water tank;
when in the second state, the first return line is used for allowing the solution after the reverse osmosis membrane is cleaned to flow back into the multifunctional water tank.
In one embodiment, the device further comprises a raw water tank and an ultrafiltration system communicated with the raw water tank, wherein the raw water tank is used for storing radioactive raw liquid, the ultrafiltration system is connected between the raw water tank and the multifunctional water tank, an outlet of the ultrafiltration system is communicated with an inlet of the multifunctional water tank, the ultrafiltration system is used for carrying out filtration treatment on the radioactive raw liquid flowing out of the raw water tank, and ultrafiltration clear liquid filtered by the ultrafiltration system can flow into the multifunctional water tank.
In one embodiment, the system further comprises a second purge line for communicating a region of the first purge line downstream of the ultrafiltration system and downstream of the purge pump;
the multi-functional tank has a third state containing an ultrafiltration wash solution, and when in the third state, the wash pump is capable of pumping the ultrafiltration wash solution in the multi-functional tank downstream of the ultrafiltration system through the second wash line to cause the ultrafiltration wash solution to flow from downstream of the ultrafiltration system to upstream of the ultrafiltration system, back flushing the ultrafiltration system.
In one embodiment, a third return line is also included that communicates between the raw tank and upstream of the ultrafiltration system, through which third return line the solution after washing the ultrafiltration system can flow back into the raw tank when in the third state.
In one embodiment, the ultrafiltration device further comprises a desalination bed, wherein the desalination bed is arranged between the ultrafiltration system and the multifunctional water tank, an inlet of the desalination bed is communicated with an outlet of the ultrafiltration system, an outlet of the desalination bed is communicated with an inlet of the multifunctional water tank through a first desalination pipeline, and the desalination bed is used for removing impurities in the ultrafiltration filtrate.
In one embodiment, the system further comprises a water production tank which is communicated with the outlet of the reverse osmosis system and is communicated with the outlet of the desalination bed through a second desalination pipeline;
the desalted filtrate treated by the desalted bed can directly flow into the water production tank through the second desalted pipeline;
or the desalting filtering liquid flows into the multifunctional water tank through the first desalting pipeline.
In one embodiment, the device further comprises an electric desalting system, wherein the electric desalting system is arranged between the reverse osmosis system and the water production tank, an inlet of the electric desalting system is communicated with an outlet of the reverse osmosis system, an outlet of the electric desalting system is communicated with an inlet of the water production tank, and the electric desalting system is used for removing impurities in reverse osmosis filtered liquid.
In one embodiment, a fourth return line is also included that communicates the multifunction tank with the electrical desalination system;
the fourth return line is configured to return an electrodeionization concentrate resulting from treatment of the reverse osmosis permeate by the electrodeionization system to the multi-function tank when treating the radioactive waste.
In one embodiment, the system further comprises a cartridge filter mounted on the reverse osmosis pipeline, wherein the cartridge filter is used for filtering radioactive waste liquid flowing through the reverse osmosis pipeline.
The utility model has the beneficial effects that:
according to the radioactive waste liquid treatment device, the downstream of the multifunctional water tank is communicated with the reverse osmosis system through the reverse osmosis pipeline, when the multifunctional water tank is in the first state, namely, radioactive waste liquid is arranged in the multifunctional water tank, the radioactive waste liquid in the multifunctional water tank flows out of the multifunctional water tank and then passes through the reverse osmosis membrane, reverse osmosis treatment is carried out on the passing radioactive waste liquid by the reverse osmosis membrane, and reverse osmosis filtered liquid after the reverse osmosis treatment flows out of the reverse osmosis system. Through setting up first wash pipeline intercommunication multi-functional water tank and reverse osmosis system, install the wash pump on first wash pipeline, when multi-functional water tank is in the second state, have reverse osmosis cleaning solution in the multi-functional water tank promptly, because the upper reaches of reverse osmosis membrane remain dirt, dispose reverse osmosis cleaning solution in multi-functional water tank, the wash pump is arranged in making the reverse osmosis cleaning solution in the multi-functional water tank flow into the upper reaches of reverse osmosis membrane through first wash pipeline to make reverse osmosis cleaning solution wash reverse osmosis membrane. According to the radioactive waste liquid treatment device provided by the utility model, the multifunctional water tank can contain radioactive waste liquid and reverse osmosis cleaning solution after the radioactive waste liquid is emptied, the radioactive waste liquid is treated by arranging the reverse osmosis pipeline between the multifunctional water tank and the reverse osmosis system, and the reverse osmosis cleaning solution is arranged in the multifunctional water tank by arranging the first cleaning pipeline and the cleaning pump, so that the reverse osmosis membrane can be cleaned, the reverse osmosis membrane is conveniently cleaned, special cleaning equipment is not required, and the cost for treating the radioactive waste liquid is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a radioactive waste liquid treatment device according to an embodiment of the present utility model.
In the figure:
100. a multifunctional water tank;
200. a reverse osmosis system; 210. a reverse osmosis pipeline; 220. a first cleaning line; 230. a first return line; 240. a second return line; 250. a cartridge filter; 260. a first reverse osmosis transfer pump; 270. a second reverse osmosis transfer pump;
300. a cleaning pump;
400. a raw water tank;
500. an ultrafiltration system; 510. A second cleaning line; 520. A third return line;
600. a salt removal bed; 610. a first desalination line; 620. a second desalination pipeline;
700. a water producing tank;
800. an electrical desalination system; 810. a fourth return line;
900. a pretreatment bed.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The embodiment of the utility model provides a radioactive waste liquid treatment device, as shown in fig. 1, the radioactive waste liquid treatment device comprises a multifunctional water tank 100, a reverse osmosis system 200 and a cleaning pump 300, wherein the reverse osmosis system 200 is communicated with an outlet of the multifunctional water tank 100 through a reverse osmosis pipeline 210, and the reverse osmosis system 200 comprises a reverse osmosis membrane; the washing pump 300 is installed on the first washing line 220 communicating the multifunctional water tank 100 and the reverse osmosis system 200; the multifunctional water tank is provided with a first state for containing radioactive waste liquid and a second state for containing reverse osmosis cleaning solution; when in the first state, the reverse osmosis pipeline 210 is used for guiding the radioactive waste liquid in the multifunctional water tank 100 into the reverse osmosis system 200, and the reverse osmosis membrane is used for performing reverse osmosis treatment on the radioactive waste liquid flowing into the reverse osmosis system 200 through the reverse osmosis pipeline 210; when in the second state, the reverse osmosis pipe is blocked, and the cleaning pump 300 can pump the reverse osmosis cleaning solution in the multifunctional water tank 100 to the upstream of the reverse osmosis membrane through the first cleaning pipe 220 to wash the reverse osmosis membrane.
In the above-mentioned radioactive waste liquid treatment apparatus, the downstream of the multifunctional water tank 100 is communicated with the reverse osmosis system 200 through the reverse osmosis pipeline 210, when the multifunctional water tank 100 is in the first state, that is, the multifunctional water tank 100 has radioactive waste liquid therein, the radioactive waste liquid in the multifunctional water tank 100 flows out of the multifunctional water tank 100 and then passes through the reverse osmosis membrane, reverse osmosis treatment is performed on the passing radioactive waste liquid by using the reverse osmosis membrane, and the reverse osmosis filtered liquid after the reverse osmosis membrane treatment flows out of the reverse osmosis system 200. By providing the first cleaning line 220 to communicate the multifunctional water tank 100 and the reverse osmosis system 200, the cleaning pump 300 is installed on the first cleaning line 220, and when the multifunctional water tank 100 is in the second state, i.e., the multifunctional water tank 100 has the reverse osmosis cleaning solution therein, since dirt remains upstream of the reverse osmosis membrane, the reverse osmosis cleaning solution is disposed in the multifunctional water tank 100, and the cleaning pump 300 is used to allow the reverse osmosis cleaning solution in the multifunctional water tank 100 to flow into the upstream of the reverse osmosis membrane through the first cleaning line 220, thereby allowing the reverse osmosis cleaning solution to clean the reverse osmosis membrane. The radioactive waste liquid treatment device provided by the utility model has the advantages that the multifunctional water tank 100 can contain radioactive waste liquid, reverse osmosis cleaning solution can be contained after the radioactive waste liquid is emptied, the radioactive waste liquid is treated by arranging the reverse osmosis pipeline 210 between the multifunctional water tank 100 and the reverse osmosis system 200, and the reverse osmosis cleaning solution is arranged in the multifunctional water tank 100 by arranging the first cleaning pipeline 220 and the cleaning pump 300, so that the reverse osmosis membrane can be cleaned, the reverse osmosis membrane is conveniently cleaned, special cleaning equipment is not required, and the cost for treating the radioactive waste liquid is reduced.
It will be appreciated that when the multi-functional water tank 100 is switched from the first state to the second state, the radioactive waste in the multi-functional water tank 100 has been emptied, at which point the reverse osmosis cleaning solution is again reconfigured in the multi-functional water tank 100.
Specifically, as shown in fig. 1, the radioactive waste treatment apparatus further includes a first return line 230 that communicates the multifunctional water tank 100 and the reverse osmosis system 200; when in the first state, the first return line 230 is used for the reverse osmosis system 200 to process reverse osmosis concentrate generated from radioactive waste to flow back into the multi-purpose tank 100; when in the second state, the first return line 230 is used for the solution after cleaning the reverse osmosis membrane to flow back into the multifunctional water tank 100. By providing the first return line 230, reverse osmosis concentrate generated by the reverse osmosis system 200 for treating radioactive waste or a solution after washing the reverse osmosis membrane is returned to the multifunctional water tank 100.
Specifically, as shown in fig. 1, the radioactive waste treatment apparatus further includes a cartridge filter 250 mounted on the reverse osmosis pipeline 210, the cartridge filter 250 for filtering the radioactive waste flowing through the reverse osmosis pipeline 210. A cartridge filter 250 is provided to filter the radioactive waste flowing through the reverse osmosis tube 210 to prevent impurities in the radioactive waste from entering the reverse osmosis system 200.
Preferably, as shown in fig. 1, the radioactive waste treatment apparatus further includes a first reverse osmosis delivery pump 260 and a second reverse osmosis delivery pump 270 mounted on the reverse osmosis pipeline 210, the first reverse osmosis delivery pump 260 being mounted upstream of the cartridge filter 250, the first reverse osmosis delivery pump 260 being used to pump the radioactive waste in the multifunctional water tank 100 into the cartridge filter 250, the second reverse osmosis delivery pump 270 being mounted downstream of the cartridge filter 250, the second reverse osmosis delivery pump 270 being used to pump the filter filtrate filtered by the cartridge filter 250 into the reverse osmosis system 200.
Preferably, as shown in fig. 1, the radioactive waste liquid treatment apparatus further includes a raw water tank 400 and an ultrafiltration system 500 in communication with the raw water tank 400, wherein the raw water tank 400 is used for storing radioactive raw liquid, the ultrafiltration system 500 is connected between the raw water tank 400 and the multifunctional water tank 100, and an outlet of the ultrafiltration system 500 is in communication with an inlet of the multifunctional water tank 100, the ultrafiltration system 500 is used for filtering the radioactive raw liquid flowing out of the raw water tank 400, and the ultrafiltered supernatant filtered by the ultrafiltration system 500 can flow into the multifunctional water tank 100. Through setting up former water tank 400, the entry of former water tank 400 communicates with nuclear power plant leakage fluid dram, and the radioactive stock solution that nuclear power plant produced all is discharged into former water tank 400 and is stored. The ultrafiltration filtrate produced after the radioactive stock solution is filtered by the ultrafiltration system 500 can flow into the multifunctional water tank 100.
Specifically, as shown in fig. 1, the radioactive waste liquid treatment apparatus further includes a second washing line 510, the second washing line 510 being for communicating a downstream of the ultrafiltration system 500 with a region of the first washing line 220 located downstream of the washing pump 300; the multifunctional tank 100 has a third state in which the ultrafiltration wash solution is contained, and when in the third state, the wash pump 300 is capable of pumping the ultrafiltration wash solution in the multifunctional tank 100 downstream of the ultrafiltration system 500 through the second wash line 510 to cause the ultrafiltration wash solution to flow from downstream of the ultrafiltration system 500 to upstream of the ultrafiltration system 500, back flushing the ultrafiltration system 500. By providing the second purge line 510, one end of the second purge line 510 is communicated with the downstream of the ultrafiltration system 500 and the other end is communicated with the region of the reverse osmosis line 210 downstream of the purge pump 300, and when the multifunction tank 100 is in the third state, only the ultrafiltration filtrate is pumped into the downstream of the ultrafiltration system 500 by the purge pump 300, thereby allowing the ultrafiltration wash solution to flow from the downstream of the ultrafiltration system 500 to the upstream of the ultrafiltration system 500, and back flushing the ultrafiltration system 500.
It will be appreciated that in some embodiments, the ultrafiltration wash solution and the reverse osmosis wash solution may be the same, for example, tap water; in some embodiments, the ultrafiltration wash solution and the reverse osmosis wash solution may be different, with different wash solutions being specifically configured for each device to be washed.
Specifically, as shown in fig. 1, the radioactive waste liquid treatment apparatus further includes a third return line 520 communicating the raw water tank 400 and upstream of the ultrafiltration system 500, and when the ultrafiltration system 500 is cleaned, the solution after cleaning the ultrafiltration system 500 can flow back into the raw water tank 400 through the third return line 520. By providing a third return line 520, the solution after washing the ultrafiltration system 500 is transported.
Preferably, as shown in fig. 1, the radioactive waste treatment apparatus further includes a second return line 240 communicating the raw water tank 400 and the reverse osmosis system 200, the second return line 240 being used for the reverse osmosis concentrate produced after the reverse osmosis system 200 is treated to flow into the raw water tank.
Preferably, as shown in fig. 1, the radioactive waste liquid treatment apparatus further comprises a pretreatment bed 900 connected between the raw water tank 400 and the ultrafiltration system 500, wherein an inlet of the pretreatment bed 900 is communicated with an outlet of the raw water tank 400, an outlet of the pretreatment bed 900 is communicated with an inlet of the ultrafiltration system 500, the pretreatment bed 900 has a filtering effect, a first filtering treatment is performed on the radioactive raw liquid, and then a pretreated filtrate filtered by the pretreatment bed 900 can flow into the ultrafiltration system 500 for a second filtering treatment.
Preferably, as shown in fig. 1, the radioactive waste liquid treatment apparatus further comprises a desalination bed 600, the desalination bed 600 is disposed between the ultrafiltration system 500 and the multifunctional water tank 100, and an inlet of the desalination bed 600 is communicated with an outlet of the ultrafiltration system 500, and an outlet of the desalination bed 600 is communicated with an inlet of the multifunctional water tank 100 through a first desalination pipeline 610, and the desalination bed 600 is used for removing impurities in the ultrafiltration filtrate. Impurities in the ultrafiltration supernatant are removed by providing a desalination bed 600 between the multifunctional water tank 100 and the ultrafiltration system 500.
Preferably, as shown in fig. 1, the radioactive waste liquid treatment apparatus further comprises a water production tank 700, the water production tank 700 is communicated with the outlet of the reverse osmosis system 200, and the water production tank 700 is communicated with the outlet of the desalination bed 600 through a second desalination pipeline 620; the desalted filtrate treated by the desalted bed 600 can flow directly into the water producing tank 700 through the second desalted pipeline 620; alternatively, the desalted supernatant flows into the multifunctional water tank 100 through the first desalted line 610. The desalted and filtered liquid treated by the desalting bed 600 can directly flow into the water production tank 700 for temporary storage through the second desalting pipeline 620, and the desalted and filtered liquid can also flow into the multifunctional water tank 100 through the second desalting pipeline 620 and then undergo reverse osmosis treatment through the reverse osmosis system 200.
Preferably, as shown in fig. 1, the radioactive waste liquid treatment apparatus further comprises an electric desalting system 800, the electric desalting system 800 is arranged between the reverse osmosis system 200 and the water producing tank 700, and the inlet of the electric desalting system 800 is communicated with the outlet of the reverse osmosis system 200, the outlet of the electric desalting system 800 is communicated with the inlet of the water producing tank 700, and the electric desalting system 800 is used for removing impurities in the reverse osmosis filtered liquid. Impurities in the reverse osmosis permeate are removed by providing an electrodeionization system 800 between the reverse osmosis system 200 and the produced water tank 700.
Specifically, as shown in fig. 1, the radioactive waste treatment apparatus further includes a fourth return line 810 communicating the multifunctional water tank 100 and the electric desalting system 800; fourth return line 810 is used to allow the electrically-depleted concentrate produced by electrically-depleted system 800 in treating reverse osmosis permeate to flow back into multi-purpose tank 100 when treating radioactive waste. The electric desalting concentrate generated by the electric desalting system 800 for treating the reverse osmosis filtered liquid flows into the multifunctional water tank 100 by arranging the fourth return line 810, and then the reverse osmosis treatment is circulated from the multifunctional water tank 100 through the reverse osmosis system 200.
It should be noted that, the reverse osmosis system 200, the ultrafiltration system 500, the desalination bed 600, the electrodeionization system 800 and the pretreatment bed 900 provided in the present embodiment all belong to conventional technical means in the art, so specific structures thereof are not described herein.
The radioactive waste liquid in the multifunctional water tank 100 includes a desalting filtrate, a reverse osmosis concentrate, and an electric desalting concentrate.
The radioactive stock solution generated by the nuclear power plant is temporarily stored in the original water tank 400, after the liquid level in the original water tank 400 reaches the pretreatment liquid level, the radioactive waste liquid treatment device is started to treat the radioactive stock solution, the radioactive stock solution is filtered by the pretreatment bed 900 to generate pretreatment filter liquor, the pretreatment filter liquor is filtered by the ultrafiltration system 500 to generate ultrafiltration filter liquor, the ultrafiltration filter liquor is treated by the desalination bed 600 to generate desalination filter liquor, and the desalination filter liquor can directly flow into the water production tank 700 through the second desalination pipeline 620 or flow into the multifunctional water tank 100 through the first desalination pipeline 610 to form radioactive waste liquid.
The radioactive waste liquid is pumped into a cartridge filter 250 through a first reverse osmosis delivery pump 260, filtered by the cartridge filter 250 to generate filter clear liquid, the filter clear liquid is pumped into a reverse osmosis system 200 through a second reverse osmosis delivery pump 270 to be subjected to reverse osmosis treatment, the reverse osmosis clear liquid generated by the reverse osmosis system 200 flows into an electric desalting system 800, and the reverse osmosis concentrated liquid generated by the reverse osmosis system 200 flows back into a multifunctional water tank 100 or flows back into a raw water tank 400; the reverse osmosis filtered liquid is processed by the electric desalting system 800 to generate electric desalting filtered liquid, the electric desalting filtered liquid flows into the water production tank 700 for temporary storage, and the electric desalting concentrated liquid generated after being processed by the electric desalting system 800 flows back into the multifunctional water tank 100.
When the radioactive stock solution treatment is completed, i.e., after the radioactive waste liquid in the multifunctional water tank 100 is emptied, a reverse osmosis cleaning solution is disposed in the multifunctional water tank 100, i.e., the multifunctional water tank 100 is in the second state, and the reverse osmosis cleaning solution is pumped upstream of the reverse osmosis membrane by the cleaning pump 300, thereby cleaning the reverse osmosis membrane, and the cleaned solution flows into the multifunctional water tank 100 through the first return line 230.
When the radioactive stock solution treatment is completed, i.e., after the radioactive waste liquid in the multifunctional water tank 100 is emptied, i.e., the multifunctional water tank 100 is in the third state, an ultrafiltration cleaning solution is disposed in the multifunctional water tank 100, and is pumped downstream of the ultrafiltration system 500 by the cleaning pump 300, so that the ultrafiltration cleaning solution flows from the downstream of the ultrafiltration system 500 to the upstream of the ultrafiltration system 500, the ultrafiltration system 500 is backwashed, and the cleaned solution flows into the stock water tank 400 through the third return line 510.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A radioactive waste liquid treatment apparatus, comprising:
a multi-functional water tank (100);
a reverse osmosis system (200) communicated with an outlet of the multifunctional water tank (100) through a reverse osmosis pipeline (210), wherein the reverse osmosis system (200) comprises a reverse osmosis membrane;
a washing pump (300) installed on a first washing line (220) communicating the multifunctional water tank (100) and the reverse osmosis system (200);
the multifunctional water tank (100) has a first state containing radioactive waste and a second state containing reverse osmosis cleaning solution;
when in the first state, the reverse osmosis pipeline (210) is used for guiding the radioactive waste liquid in the multifunctional water tank (100) into the reverse osmosis system (200), and the reverse osmosis membrane is used for performing reverse osmosis treatment on the radioactive waste liquid flowing into the reverse osmosis system (200) through the reverse osmosis pipeline (210);
when in the second state, the reverse osmosis line (210) is blocked, and the cleaning pump (300) is capable of pumping the reverse osmosis cleaning solution in the multifunction tank (100) upstream of the reverse osmosis membrane through the first cleaning line (220) to flush the reverse osmosis membrane.
2. The radioactive waste treatment device according to claim 1, further comprising a first return line (230) communicating the multifunctional water tank (100) and the reverse osmosis system (200);
when in the first state, the first return line (230) is used for the reverse osmosis concentrated solution generated by the reverse osmosis system (200) for treating the radioactive waste solution to flow back into the multifunctional water tank (100);
when in the second state, the first return line (230) is used for the solution after cleaning the reverse osmosis membrane to flow back into the multifunctional water tank (100).
3. The radioactive waste liquid treatment apparatus according to claim 1, further comprising a raw water tank (400) and an ultrafiltration system (500) in communication with the raw water tank (400), wherein the raw water tank (400) is used for storing radioactive raw liquid, the ultrafiltration system (500) is connected between the raw water tank (400) and the multifunctional water tank (100), the ultrafiltration system (500) is used for filtering the radioactive raw liquid flowing out of the raw water tank (400), and ultrafiltration filtrate filtered by the ultrafiltration system (500) can flow into the multifunctional water tank (100).
4. A radioactive waste treatment device according to claim 3, further comprising a second purge line (510), said second purge line (510) being adapted to communicate a region of said first purge line (220) downstream of said ultrafiltration system (500) and downstream of said purge pump (300);
the multifunctional water tank (100) has a third state containing an ultrafiltration wash solution, and when in the third state, the wash pump (300) is capable of pumping the ultrafiltration wash solution in the multifunctional water tank (100) downstream of the ultrafiltration system (500) through the second wash line (510) such that the ultrafiltration wash solution flows from downstream of the ultrafiltration system (500) to upstream of the ultrafiltration system (500), back flushing the ultrafiltration system (500).
5. The radioactive waste treatment apparatus according to claim 4, further comprising a third return line (520) communicating the raw water tank (400) and upstream of the ultrafiltration system (500), through which third return line (520) the solution after washing the ultrafiltration system (500) can flow back into the raw water tank (400) when in the third state.
6. A radioactive waste liquid treatment apparatus according to claim 3, further comprising a salt removal bed (600), said salt removal bed (600) being arranged between said ultrafiltration system (500) and said multifunctional water tank (100), and an inlet of said salt removal bed (600) being in communication with an outlet of said ultrafiltration system (500), an outlet of said salt removal bed (600) being in communication with an inlet of said multifunctional water tank (100) via a first salt removal line (610), said salt removal bed (600) being for removing impurities from said ultrafiltration filtrate.
7. The radioactive waste treatment device according to claim 6, further comprising a water production tank (700), said water production tank (700) being in communication with an outlet of said reverse osmosis system (200), and said water production tank (700) being in communication with an outlet of said desalination bed (600) through a second desalination line (620);
the desalted filtrate treated by the desalted bed (600) can directly flow into the water producing tank (700) through the second desalted pipeline (620);
alternatively, the desalination filtrate flows into the multi-functional water tank (100) through the first desalination line (610).
8. The radioactive waste treatment device according to claim 7, further comprising an electric desalting system (800), wherein the electric desalting system (800) is disposed between the reverse osmosis system (200) and the water producing tank (700), and an inlet of the electric desalting system (800) is communicated with an outlet of the reverse osmosis system (200), and an outlet of the electric desalting system (800) is communicated with an inlet of the water producing tank (700), and the electric desalting system (800) is used for removing impurities in reverse osmosis filtered liquid.
9. The radioactive waste treatment device according to claim 8, further comprising a fourth return line (810) communicating the multifunctional water tank (100) and the electric desalination system (800);
the fourth return line (810) is configured to return an electrodeionization concentrate resulting from treatment of the reverse osmosis permeate by the electrodeionization system (800) back to the multi-function tank (100) when treating the radioactive waste.
10. The radioactive waste treatment apparatus according to claim 1, further comprising a cartridge filter (250) mounted on the reverse osmosis pipe (210), the cartridge filter (250) for filtering the radioactive waste flowing through the reverse osmosis pipe (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320252908.6U CN219658399U (en) | 2023-02-20 | 2023-02-20 | Radioactive waste liquid treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320252908.6U CN219658399U (en) | 2023-02-20 | 2023-02-20 | Radioactive waste liquid treatment device |
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| Publication Number | Publication Date |
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| CN219658399U true CN219658399U (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320252908.6U Active CN219658399U (en) | 2023-02-20 | 2023-02-20 | Radioactive waste liquid treatment device |
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| CN (1) | CN219658399U (en) |
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