CN216639101U - A remove device that is arranged in organic matter of uranium purification conversion waste water - Google Patents
A remove device that is arranged in organic matter of uranium purification conversion waste water Download PDFInfo
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- CN216639101U CN216639101U CN202121244368.4U CN202121244368U CN216639101U CN 216639101 U CN216639101 U CN 216639101U CN 202121244368 U CN202121244368 U CN 202121244368U CN 216639101 U CN216639101 U CN 216639101U
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Abstract
A removing device for organic matters in uranium purification conversion wastewater belongs to the field of uranium wastewater recycling. The method solves the problem that the raffinate waste water generated in the uranium purification process contains a small amount of organic phase to reduce the adsorption effect of the exchange resin, so that the waste liquid treatment result does not reach the standard. The utility model comprises a pre-separation box, a vacuum separator, a pre-filter, a polymer separator and an adsorption filter which are sequentially connected through pipelines, wherein the inlet end of the pre-separation box is connected with a sewage pipeline, the outlet end of the pre-separation box is also connected with a sump oil collecting box, and the adsorption filter is provided with a discharge port. By the device for removing the organic matters in the uranium-containing wastewater, the content of the organic phase in the uranium-containing wastewater is reduced to be below 1mg/L, the phenomenon that the adsorption effect of the exchange resin is reduced by the organic phase in the uranium-containing wastewater is avoided, the adsorption effect of the exchange resin on uranium ions in the uranium-containing wastewater is improved, and the uranium content in the uranium-containing wastewater is discharged below a standard value.
Description
Technical Field
The utility model relates to a device and a method for removing organic matters in wastewater, and belongs to the field of recycling of uranium wastewater.
Background
The raffinate waste water generated in the extraction and purification production process of the uranium purification and conversion production line contains a small amount of organic phases TBP, DPB, MDP and hydrogenated coal organic phases, and the waste water needs to enter an ion exchange system for further treatment and recovery of metal uranium and is treated to qualified discharge standards. Through experimental study, in the organic phase in the waste liquid attached to exchange resin adsorption channel among the ion exchange system, cause the resin poisoning, reduce resin adsorption effect, make the waste liquid treatment result not up to standard, consequently, need seek a remove device that is arranged in organic matter among the uranium purification conversion waste water.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problem that the absorption effect of exchange resin is reduced because a small amount of organic phase is contained in raffinate waste water generated in the uranium purification process, so that the waste liquid treatment result does not reach the standard, and further discloses a device for removing organic matters in uranium purification conversion waste water. The following presents a simplified summary of the utility model in order to provide a basic understanding of some aspects of the utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.
The technical scheme of the utility model is as follows:
the utility model provides a remove device that is arranged in organic matter of uranium purification conversion waste water, includes preseparation case, vacuum separator, prefilter, macromolecular separator and the adsorption filter that loops through the pipe connection, and the entry end of preseparation case is connected with the sewer line, and the exit end of preseparation case still is connected with the sump oil collecting box, is provided with the discharge port on the adsorption filter.
Furthermore, the outlet end of the vacuum separator is connected with an organic phase collecting chamber, the outlet end of the organic phase collecting chamber is communicated with a sump oil collecting box, and an organic phase discharging pump is arranged between the organic phase collecting chamber and the sump oil collecting box.
Furthermore, a water conveying pump is arranged between the vacuum separator and the prefilter.
Furthermore, a backwashing gas inlet and a backwashing water inlet are formed in the adsorption filter, the backwashing gas inlet is sequentially connected with the adsorption filter, the polymer separator, the prefilter and the pre-separation box through pipelines, and the backwashing water inlet is sequentially connected with the adsorption filter, the polymer separator, the prefilter and the pre-separation box through pipelines.
Further, the polymer separators are provided with two groups, two groups of polymer separators are arranged in parallel, the adsorption filters are provided with two groups, and two groups of adsorption filters are arranged in parallel.
Furthermore, the pre-separation box comprises a first chamber, a second chamber and a third chamber, wherein blow-down valves are respectively arranged at the bottoms of the first chamber, the second chamber and the third chamber, and the second chamber is respectively communicated with the first chamber and the third chamber.
Furthermore, the first chamber is a natural settling chamber, the second chamber is a honeycomb inclined tube settling chamber, a honeycomb inclined tube is arranged in the second chamber, and the outlet end of the sewage pipeline is arranged in the middle of the first chamber.
Furthermore, an oil level electrode is arranged in the pre-separation tank, and an ultrasonic liquid level meter is arranged on the pre-separation tank.
The utility model has the beneficial effects that:
1. the removing device for the organic matters in the uranium purification conversion wastewater is suitable for uranium-containing wastewater containing more organic matters in uranium, can remove organic phases in the uranium-containing wastewater, and reduce the content of the organic matters in the uranium-containing wastewater to 1mg/L, so that poisoning of ion exchange resin in subsequent procedures is reduced, the adsorption efficiency of the ion exchange resin on uranium in the uranium-containing wastewater is improved, and the uranium-containing wastewater can be discharged up to the standard;
2. the pre-separation box disclosed by the utility model has the advantages that collected wastewater sequentially passes through the natural settling chamber and the honeycomb inclined tube settling chamber, solid particles and organic phases in the wastewater are separated in the natural settling chamber, then free organic phases and suspended organic phases in the wastewater are quickly separated through the honeycomb inclined tube settling chamber, and the organic phases and impurities in the uranium-containing wastewater are subjected to graded pre-separation;
3. the vacuum separator is matched with proper temperature and vacuum degree, so that the surface tension can be destroyed to realize demulsification, and the water-organic phase separation of water-in-water organic phase and organic phase water is realized;
4. in the polymer separator, tiny oil particle molecules are adsorbed on the criss-cross superfine fiber yarns, along with the increase of tiny organic phase molecules on the fiber yarns, a plurality of small organic phase molecules are mutually attracted and polymerized into larger oil particles, and after the oil particles are gathered to a certain large oil diameter, large oil drops are separated from fiber under the action of oil-water gravity difference to float upwards, so that oil-water separation is realized. The criss-cross fiber of the polymer adsorption filter element forms a deep filter screen, and can filter and separate suspended impurities in water.
Drawings
FIG. 1 is a schematic diagram of a device for removing organic matters in uranium purification conversion wastewater;
FIG. 2 is a schematic view of the internal structure of the preseparation box.
In the figure, 1-a sewage pipeline, 2-a pre-separation tank, 3-a vacuum separator, 4-a water conveying pump, 5-a pre-filter, 6-a polymer separator, 7-an adsorption filter, 8-an organic phase collecting chamber, 9-an organic phase discharging pump, 10-a dirty oil collecting tank, 11-a discharge port, 12-a back flushing gas inlet, 13-a back flushing water inlet, 14-a first chamber, 15-a second chamber, 16-a third chamber, 17-an oil level electrode, 18-an ultrasonic liquid level meter and 19-a blow-down valve.
Detailed Description
In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It should be understood that the description is intended to be exemplary, and not intended to limit the scope of the utility model. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows: the embodiment is described with reference to fig. 1, the removing device for organic matters in uranium purification conversion wastewater of the embodiment comprises a pre-separation tank 2, a vacuum separator 3, a pre-filter 5, a polymer separator 6 and an adsorption filter 7 which are sequentially connected through a pipeline, the inlet end of the pre-separation tank 2 is connected with a sewage pipeline 1, the outlet end of the pre-separation tank 2 is also connected with a dirty oil collecting tank 10, the adsorption filter 7 is provided with a discharge port 11, uranium-containing wastewater containing an organic phase is firstly subjected to pre-separation by the pre-separation tank 2, the organic phase and large particle impurities in the wastewater are separated and filtered, the wastewater separated by the pre-separation tank 2 flows into the vacuum separator 3 through a pipeline and passes through the vacuum separator 3, the vacuum separator 3 is composed of a vacuum gravity separation chamber and a corrugated pipe plate group separation chamber, and the separated organic phase enters an organic phase collecting chamber 8, and provide power output through organic phase pump 9 of row and store in sump oil collecting box 10 temporarily, uranium-bearing waste water after vacuum separator 3 filters flows into prefilter 5 in through water delivery pump 4 and prefilters, uranium-bearing waste water after the filtration is discharged and is detected the organic phase content in the waste water through discharge port 11 after two sets of parallelly connected polymer separator 6 and two sets of parallelly connected adsorption filter 7 adsorption filtration, detect in the waste water that organic phase content is less than 1mg/L and can carry out adsorption treatment through exchange resin to the uranium-bearing in the waste water.
The second embodiment is as follows: the embodiment is described with reference to fig. 1, the removing device for organic matters in uranium purification conversion wastewater of the embodiment is provided with a backwashing gas inlet 12 and a backwashing water inlet 13 on an adsorption filter 7, the backwashing gas inlet 12 is sequentially connected with the adsorption filter 7, a polymer separator 6, a pre-filter 5 and a pre-separation tank 2 through pipelines, the backwashing water inlet 13 is sequentially connected with the adsorption filter 7, the polymer separator 6, the pre-filter 5 and the pre-separation tank 2 through pipelines, after the removing device filters uranium-containing wastewater for a plurality of times, uranium-containing impurities in the pre-separation tank 2, the pre-filter 5, the polymer separator 6 and the adsorption filter 7 are more, the uranium-containing impurities need to be washed through clean water and gas, a proper amount of clean water is added into the backwashing gas inlet 13, the clean water sequentially flows into the adsorption filter 7, the polymer separator 6, the pre-filter 5 and the pre-separation tank 2 through pipelines, the device is washed, an organic phase and impurities in the device are cleaned, gas is input into a back washing gas inlet 12, and the adsorption filter 7, the polymer separator 6, the pre-filter 5 and the pre-separation box 2 are cleaned and dried by the gas through pipelines.
The third concrete implementation mode: the embodiment is described with reference to fig. 2, the pre-separation tank 2 includes a first chamber 14, a second chamber 15 and a third chamber 16, the bottoms of the first chamber 14, the second chamber 15 and the third chamber 16 are respectively provided with a blowoff valve 19, the second chamber 15 is communicated with the first chamber 14, the second chamber 15 is communicated with the third chamber 16, the first chamber 14 is a natural settling chamber, uranium-containing wastewater is input from the middle of the first chamber 14 for primary pre-separation, settling and separation are performed in the first chamber 14, the separated organic phase rises and floats on the upper portion of the first chamber 14, large-particle impurities in the wastewater settle to the bottom of the first chamber 14, the first chamber 14 is blowoff by opening the blowoff valve 19 at the bottom of the first chamber 14, the wastewater settled and separated by the first chamber 14 flows from the bottom of the second chamber 15, the second chamber 15 is a honeycomb inclined tube settling chamber, wastewater is polymerized and enlarged in the second chamber 15 through wetting, coalescence and coarse granulation of small organic phase particles, so that free organic phases and suspended organic phases in the wastewater are quickly separated to achieve secondary pre-separation, uranium-containing wastewater subjected to secondary pre-separation flows into the third chamber 16 through the top and flows into the vacuum separator 3 through a pipeline, organic phases floating on the upper part of the pre-separator 2 flow into the dirty oil collecting box 10 through the pipeline for temporary storage, an oil level electrode 17 in the pre-separator 2 is used for measuring the position of the organic phases in the pre-separator 2, and the liquid level in the pre-separator 2 is measured through an ultrasonic liquid level meter 18 arranged above the pre-separator 2, so that the phenomenon that the liquid level in the pre-separator 2 is too high and flows out from the pre-separator 2 is avoided.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1-2, and the method for removing organic matters in uranium purification conversion wastewater of the embodiment comprises the following steps:
the method comprises the following steps: sewage flows into a pre-separation tank 2 through a sewage pipeline 1, an organic phase separated after being pretreated by the pre-separation tank 2 is discharged into a sump oil collecting tank 10 through a pipeline for storage, and the sewage separated by the pre-separation tank 2 flows into a vacuum separator 3;
step two: the wastewater treated by the pre-separation box 2 enters a vacuum separator 3 for vacuum separation, the vacuum separator 3 separates organic phases in the wastewater into an organic phase collection chamber 8, the wastewater after vacuum separation flows into a pre-filter 5 through a pipeline, and the vacuum separator 3 is matched with proper temperature and vacuum degree, so that the surface tension can be destroyed to realize emulsion breaking, and the water-organic phase separation of water-coated organic phases and organic phase water is realized;
step three: the organic phase in the organic phase collecting chamber 8 is conveyed to a sump oil collecting box 10 for storage through an organic phase discharging pump 9, and the wastewater filtered by the prefilter 5 sequentially flows through a polymer separator 6 and an adsorption filter 7 through pipelines for adsorption and filtration;
step four: the organic matter content of the wastewater after being adsorbed and filtered by the polymer separator 6 and the adsorption filter 7 is less than 1mg/L, the wastewater is discharged through the discharge port 11, in the polymer separator 6, tiny oil particle molecules are adsorbed on the criss-cross superfine fiber yarns, a plurality of tiny organic phase molecules attract each other along with the increase of tiny organic phase molecules on the fiber yarns and are polymerized into larger oil particles, and after the oil particles are gathered to a certain large oil diameter, large oil drops can release the constraint of fibers and float upwards under the action of the gravity difference of oil and water, so that the separation of oil and water is realized. The criss-cross fiber of the polymer adsorption filter element forms a deep filter screen which can filter and separate suspended impurities in water;
step five: clean water is introduced into a backwashing water inlet 13, the pre-separation tank 2, the pre-filter 5 and the polymer separator 6 are washed by the clean water through pipelines, gas is introduced into a backwashing gas inlet 12, and the pre-separation tank 2, the pre-filter 5 and the polymer separator 6 are washed by the gas through pipelines;
the specific steps of the sewage in the pre-separation tank 2 in the first step are as follows: sewage enters the first cavity 14 of the pre-separation box 2 to be naturally settled, solid particles in the sewage are deposited at the bottom of the first cavity 14 and are discharged through the blowoff valve 19, organic phases in the sewage are suspended on the upper portion of the first cavity 14, the sewage naturally settled flows in from the bottom of the second cavity 15 after flowing out from the upper portion of the first cavity 14, impurities are filtered through the honeycomb inclined tube of the second cavity 15, the honeycomb inclined tube quickly separates free organic phases and suspended organic phases in the sewage, the filtered impurities are discharged through the blowoff valve 19 at the bottom of the second cavity 15, the wastewater flows into the third cavity 16 from the top of the second cavity 15, the wastewater in the third cavity 16 is discharged into the vacuum separator 3 through a pipeline, and the impurities are discharged through the blowoff valve 19 at the bottom of the third cavity 16.
This embodiment is merely illustrative of the present patent and does not limit the scope of the patent, and those skilled in the art can make modifications to its part without departing from the spirit and scope of the patent.
Claims (8)
1. The utility model provides a remove device that is arranged in organic matter of uranium purification conversion waste water which characterized in that: the device comprises a pre-separation box (2), a vacuum separator (3), a pre-filter (5), a polymer separator (6) and an adsorption filter (7) which are sequentially connected through pipelines, wherein the inlet end of the pre-separation box (2) is connected with a sewage pipeline (1), the outlet end of the pre-separation box (2) is also connected with a dirty oil collecting box (10), and a discharge port (11) is formed in the adsorption filter (7).
2. The device for removing organic matters in uranium purification conversion wastewater according to claim 1, wherein: the outlet end of the vacuum separator (3) is connected with an organic phase collecting chamber (8), the outlet end of the organic phase collecting chamber (8) is communicated with a sump oil collecting box (10), and an organic phase discharging pump (9) is installed between the organic phase collecting chamber (8) and the sump oil collecting box (10).
3. The device for removing organic matters in uranium purification conversion wastewater according to claim 2, wherein: and a water delivery pump (4) is arranged between the vacuum separator (3) and the prefilter (5).
4. The device for removing organic matters in uranium purification conversion wastewater according to claim 3, wherein: the adsorption and filtration device is characterized in that a backwashing gas inlet (12) and a backwashing water inlet (13) are formed in the adsorption filter (7), the backwashing gas inlet (12) is sequentially connected with the adsorption filter (7), the polymer separator (6), the prefilter (5) and the pre-separation box (2) through pipelines, and the backwashing water inlet (13) is sequentially connected with the adsorption filter (7), the polymer separator (6), the prefilter (5) and the pre-separation box (2) through pipelines.
5. The device for removing organic matters in uranium purification conversion wastewater according to claim 4, wherein: the polymer separators (6) are provided with two groups, two groups of polymer separators (6) are arranged in parallel, the adsorption filters (7) are provided with two groups, and two groups of adsorption filters (7) are arranged in parallel.
6. The device for removing the organic matters in the uranium purification conversion wastewater according to any one of claims 1 to 5, wherein: the pre-separation box (2) comprises a first chamber (14), a second chamber (15) and a third chamber (16), wherein blow-down valves (19) are respectively arranged at the bottoms of the first chamber (14), the second chamber (15) and the third chamber (16), and the second chamber (15) is respectively communicated with the first chamber (14) and the third chamber (16).
7. The device for removing organic matters in uranium purification conversion wastewater according to claim 6, wherein: the first chamber (14) is a natural settling chamber, the second chamber (15) is a honeycomb inclined tube settling chamber, a honeycomb inclined tube is arranged in the second chamber (15), and the outlet end of the sewage pipeline (1) is arranged in the middle of the first chamber (14).
8. The device for removing organic matters in uranium purification conversion wastewater according to claim 7, wherein: an oil level electrode (17) is installed in the pre-separation box (2), and an ultrasonic liquid level meter (18) is arranged on the pre-separation box (2).
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| CN202121244368.4U CN216639101U (en) | 2021-06-04 | 2021-06-04 | A remove device that is arranged in organic matter of uranium purification conversion waste water |
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| CN202121244368.4U CN216639101U (en) | 2021-06-04 | 2021-06-04 | A remove device that is arranged in organic matter of uranium purification conversion waste water |
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| CN216639101U true CN216639101U (en) | 2022-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113213670A (en) * | 2021-06-04 | 2021-08-06 | 中核四0四有限公司 | Device and method for removing organic matters in uranium purification conversion wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113213670A (en) * | 2021-06-04 | 2021-08-06 | 中核四0四有限公司 | Device and method for removing organic matters in uranium purification conversion wastewater |
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