CN210805259U - Treatment equipment for treating washing wastewater containing radioactivity - Google Patents
Treatment equipment for treating washing wastewater containing radioactivity Download PDFInfo
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- CN210805259U CN210805259U CN201921574304.3U CN201921574304U CN210805259U CN 210805259 U CN210805259 U CN 210805259U CN 201921574304 U CN201921574304 U CN 201921574304U CN 210805259 U CN210805259 U CN 210805259U
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Abstract
The utility model provides a deal with washing wastewater treatment facilities who contains radioactivity, including the useless water pitcher, the delivery port of useless water pitcher is connected with the feed inlet of coagulating reactor one, coagulating reactor's discharge gate is connected with horizontal centrifuge's feed inlet, horizontal centrifuge's discharge gate one is connected with the end of intaking of booster pump, the play water end and the water inlet of essence filter equipment of booster pump are connected, the delivery port and the water inlet of ion exchanger of essence filter equipment are connected, ion exchanger's delivery port is connected with detection device's water inlet, detection device's delivery port one is connected with the end of intaking of circulating pump, the play water end and the water inlet of ion exchanger of circulating pump are connected. This through thoughtlessly congeal the reactor and carry out flocculation to waste water, the turbid liquid of flocculating passes through the essence through centrifugation back clear solution and strains and ion exchange, has fully got rid of the radioactive substance in the waste water, has avoided essence filter equipment and ion exchanger to block up, has prolonged filter core and ion exchange resin's practical life.
Description
Technical Field
The utility model relates to a waste water treatment technical field, in particular to handle washing waste water treatment equipment who contains radioactivity.
Background
Since X-ray was discovered in roentgen in 1895 and radium element was discovered in Curie in 1898, the technology of nuclear science has been continuously developed and changed in the world. However, while nuclear science brings great benefits to human beings, it also brings serious safety hazards. For example, nuclear power generation, although meeting the human needs for energy, raises concerns about whether the tragedy of the carnobey nuclear accident will be replayed. Now, the use of radioactive elements in military affairs, energy, industry, agriculture, medicine and their research has been actively carried out. Meanwhile, the quantity of radioactive wastes and solid wastes generated in the whole development and utilization process is increasing, the harm is also increasing, and the method cannot attract more attention.
In radioactive "three wastes", radioactive waste water, which is waste water discharged from a nuclear power plant, hospital, factory, or the like, in which radioactive isotopes are applied, accounts for a considerable proportion of nuclear fuel pre-treatment and post-treatment. The radioactive waste water has the characteristics of various heavy metal elements, high concentration, radioactivity and great harm to human and animals, and basically, the radioactivity of the radioactive elements can be reduced and eliminated only by natural decay. Therefore, particular attention should be paid to the treatment of radioactive wastewater.
The main removal target of radioactive wastewater is heavy metal elements with radioactivity, and the related treatment technology can be simply divided into two types, namely a chemical form modification method and a chemical form invariance method. Wherein the chemical form changing method comprises the following steps: chemical precipitation, air flotation and biochemical methods, the chemical form-invariant method comprises the following steps: evaporation, ion exchange, adsorption and membrane processes. The chemical precipitation method has the advantages that: the method is simple and convenient, low in cost, wide in element removing variety, strong in waterpower and water quality impact load resistance, mature in technology and equipment, but the chemical precipitation method is low in efficiency, insufficient in removal of radioactive heavy metal elements, and a small amount of radioactive elements still remain in the treated water. The evaporation process is highly efficient, but involves high power consumption and high costs, and furthermore, presents the risk of corrosion, foaming, scaling and explosion. The ion exchange method has high requirements on the quality of raw water, the reactor is easily influenced by colloid and particles, and when radioactive wastewater contains impurities such as colloid and particles, the reactor is easily blocked, and the reaction speed of the reactor is low. The membrane treatment is equivalent to the ion exchange method and is also greatly influenced by water quality. Therefore, an efficient radioactive wastewater treatment apparatus is needed to treat the washing wastewater containing radioactivity.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model provides a handle washing effluent treatment facility that contains radioactivity has solved the problem that radioactive element handled the easy jam reactor inadequately in the processing of current radioactive waste water, ion exchange and embrane method.
The utility model provides a deal with washing wastewater treatment facility that contains radioactivity, including the useless water pitcher, the delivery port of useless water pitcher is connected with the feed inlet of coagulating reactor one, the fixed rotating electrical machines in the middle of the top of coagulating reactor, the inside puddler that is equipped with of coagulating reactor, the axis of rotation of puddler and the output shaft of rotating electrical machines, the discharge gate of coagulating reactor is connected with horizontal centrifuge's feed inlet, horizontal centrifuge's discharge gate one is connected with the end of intaking of booster pump, the play water end of booster pump is connected with the water inlet of fine filtration device, the delivery port of fine filtration device is connected with ion exchanger's water inlet, ion exchanger's delivery port is connected with detection device's water inlet, detection device's delivery port one is connected with the end of intaking of circulating pump, the play water end of circulating pump is connected.
Preferably, the top of the coagulation reactor is provided with a second feeding port, and the second feeding port of the coagulation reactor is connected with a dosing pump.
Preferably, the bottom of the horizontal centrifuge is provided with a second discharge port, and the second discharge port of the horizontal centrifuge is connected with the storage tank.
Preferably, the fine filtration device is internally provided with a PP cotton filter element, a first activated carbon filter element and an RO membrane filter element which are sequentially connected in series from left to right.
Preferably, a first separator, a second separator and a third separator are arranged in the ion exchanger, a cation resin layer is arranged between the first separator and the second separator, and an anion resin layer is arranged between the second separator and the third separator.
Preferably, the right side of the detection device 7 is provided with a water outlet II.
Compared with the prior art, the utility model has the advantages that:
(1) the radioactive washing wastewater forms loose fluff grains in the coagulation reactor through a flocculating agent so as to adsorb radionuclide in the water, the flocculating agent can be continuously added into the coagulation reactor through a dosing pump, and the wastewater in the coagulation reactor is fully mixed with the flocculating agent through a stirring rod.
(2) And (3) performing solid-liquid separation on the flocculated turbid liquid discharged from the coagulation reactor by using a horizontal centrifuge, discharging the centrifugally separated sludge from a discharge port II of the horizontal centrifuge into a storage tank for further concentration, dehydration, solidification and other treatment, and allowing centrifugally separated clear liquid to enter a fine filtering device for further filtration.
(3) The inside cotton filter core of PP, first active carbon filter core and RO membrane filter core that is equipped with in proper order from left to right of essence filter equipment can be further adsorbed with the macromolecular substance in the centrifugal separation clear solution through essence filter equipment.
(4) An anion resin layer and a cation resin layer are arranged in the ion exchanger, and the centrifugal clear liquid after fine filtration is subjected to specific ion exchange through two times of ion exchange, and radioactive ions are exchanged onto the ion exchange resin, so that the waste liquid is purified.
(5) The water outlet of the ion exchanger is connected with the detection device, the detection device carries out radioactive detection on the wastewater treated in the ion exchanger, the wastewater which is detected to reach the discharge standard is discharged from the water outlet II, and the wastewater which is detected to not reach the standard enters the ion exchanger from the water outlet through the circulating pump to be continuously treated.
To sum up, the utility model relates to a handle washing waste water treatment equipment that contains radioactivity carries out flocculation to waste water in coagulating reactor, and the turbid liquid that flocculates is through mud sediment behind the centrifugation through processing such as concentration, dehydration, solidification, and the clear solution is discharged after straining and ion exchange through the essence, has fully got rid of the radioactive substance in the waste water, through flocculation, centrifugal preliminary treatment, has avoided essence filter equipment and ion exchanger to block up, has prolonged filter core and ion exchange resin's practical life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the fine filtering device of the present invention;
fig. 3 is a schematic diagram of the ion exchanger of the present invention.
In the figure:
1-wastewater tank, 2-coagulation reactor, 3-horizontal centrifuge, 4-booster pump, 5-fine filtration device, 6-ion exchanger, 7-detection device, 8-circulating pump, 9-dosing pump, 10-storage tank, 201-rotating motor, 202-stirring rod, 501-PP cotton filter element, 502-activated carbon filter element, 503-RO membrane filter element, 601-first partition plate, 602-second partition plate, 603-third partition plate, 604-anion resin layer, 605-cation resin layer.
Detailed Description
In order to better enable those skilled in the art to understand the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in the figure 1-3, a washing wastewater treatment device for treating radioactivity comprises a wastewater tank 1, wherein a water outlet of the wastewater tank 1 is connected with a first feeding hole of a coagulation reactor 2, a rotating motor 201 is fixed in the middle of the top of the coagulation reactor 2, a stirring rod 202 is arranged inside the coagulation reactor 2, a rotating shaft of the stirring rod 202 is connected with an output shaft of the rotating motor 201, a discharging hole of the coagulation reactor 2 is connected with a feeding hole of a horizontal centrifuge 3, a first discharging hole of the horizontal centrifuge 3 is connected with a water inlet end of a booster pump 4, a water outlet end of the booster pump 4 is connected with a water inlet of a fine filter device 5, a water outlet of the fine filter device 5 is connected with a water inlet of an ion exchanger 6, a water outlet of the ion exchanger 6 is connected with a water inlet of a detection device 7, a first water outlet of the detection device 7 is connected with a water inlet end of a circulating pump 8.
The top of the coagulation reactor 2 is provided with a second feeding port, the second feeding port of the coagulation reactor 2 is connected with a dosing pump 9, a flocculating agent can be added into the coagulation reactor 2 through the dosing pump 9, and the flocculating agent is subjected to adsorption bridging, electric neutralization and other physical and chemical actions to be coprecipitated with trace radionuclides and other harmful elements in waste liquid or be condensed into fine precipitable particles and combined with suspended matters in water to form loose fluff particles, so that the radionuclides in the water are adsorbed.
And a second discharge port is formed in the bottom of the horizontal centrifuge 3, the second discharge port of the horizontal centrifuge 3 is connected with a storage tank 10, the flocculated suspension enters the centrifuge for solid-liquid separation, the centrifugally separated clear liquid enters the first discharge port of the horizontal centrifuge 3 and is discharged, the clear liquid enters the fine filtering device 5 after being pressurized by the booster pump 4, and the centrifugally separated sludge is discharged from the second discharge port of the horizontal centrifuge 3 and enters the storage tank 10 to wait for further concentration, dehydration, solidification and other treatment.
As shown in fig. 2, a PP cotton filter element 501, an activated carbon filter element 502 and an RO membrane filter element 503 are sequentially arranged in the fine filtration device 5 from left to right, and the PP cotton filter element 501, the activated carbon filter element 502 and the RO membrane filter element 503 are sequentially connected in series.
As shown in fig. 3, the ion exchanger 6 is provided with a first separator 601, a second separator 602, and a third separator 603, an anion resin layer 604 is provided between the first separator 601 and the second separator 602, and a cation resin layer 605 is provided between the second separator 602 and the third separator 603.
A water outlet II is formed in the right side of the detection device 7, the detection device 7 carries out radioactive detection on the wastewater treated in the ion exchanger 6, the wastewater which is detected to reach the discharge standard is discharged from the water outlet II of the detection device 7, and the wastewater which is detected to not reach the standard enters the ion exchanger 6 from the water outlet I of the detection device 7 through the circulating pump 8 to be continuously treated.
The working principle is as follows:
treating washing wastewater containing radioactivity and storing the washing wastewater in a wastewater tank 1, enabling the wastewater discharged from the wastewater tank 1 to enter a coagulation reactor 2, opening a rotating motor 201, adding a flocculating agent from a second feeding hole of the coagulation reactor 2, fully mixing the wastewater with the flocculating agent by a stirring rod 202 to form a flocculated suspension, enabling the flocculated suspension to enter a centrifugal machine for solid-liquid separation, discharging centrifugally separated sludge from a second discharging hole of a horizontal centrifugal machine 3 to enter a storage tank 10 for further concentration, dehydration, solidification and other treatment, enabling centrifugally separated clear liquid to enter a first discharging hole of the horizontal centrifugal machine 3 to be discharged, enabling the centrifugally separated clear liquid to enter a fine filtering device 5 after pressurization of a booster pump 4, enabling the centrifugally separated clear liquid to sequentially pass through a PP cotton filter element 501, an active carbon filter element 502 and an RO membrane filter element 503 in the fine filtering device 5, enabling the clear liquid after fine filtering to enter an ion exchanger 6, and arranging an anion resin layer 604, through two times of ion exchange, specific ion exchange is carried out on the centrifugal clear liquid after fine filtration, radioactive ions are exchanged onto ion exchange resin, so that waste liquid is purified, the purified waste water enters a detection device 7, the detection device 7 carries out radioactive detection on the waste water treated in the ion exchanger 6, the waste water reaching the discharge standard is discharged from a water outlet II of the detection device 7, and the waste water which does not reach the standard in detection enters the ion exchanger 6 from the water outlet I of the detection device 7 through a circulating pump 8 to be continuously treated.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the specific implementations of the invention. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A treatment device for disposing washing wastewater containing radioactivity is characterized in that: comprises a wastewater tank (1), the water outlet of the wastewater tank (1) is connected with the first feed inlet of a coagulation reactor (2), a rotating motor (201) is fixed in the middle of the top of the coagulation reactor (2), a stirring rod (202) is arranged inside the coagulation reactor (2), the rotating shaft of the stirring rod (202) is connected with the output shaft of the rotating motor (201), the discharge outlet of the coagulation reactor (2) is connected with the feed inlet of a horizontal centrifuge (3), the discharge outlet of the horizontal centrifuge (3) is connected with the water inlet of a booster pump (4), the water outlet of the booster pump (4) is connected with the water inlet of a fine filter device (5), the water outlet of the fine filter device (5) is connected with the water inlet of an ion exchanger (6), the water outlet of the ion exchanger (6) is connected with the water inlet of a detection device (7), the water outlet of the detection device (7) is connected with the water inlet of a circulating pump (8), the water outlet end of the circulating pump (8) is connected with the water inlet of the ion exchanger (6).
2. The apparatus for treating washing wastewater containing radioactivity according to claim 1, wherein: the top of the coagulation reactor (2) is provided with a second feeding port, and the second feeding port of the coagulation reactor (2) is connected with a dosing pump (9).
3. The apparatus for treating washing wastewater containing radioactivity according to claim 1, wherein: and a second discharge port is formed in the bottom of the horizontal centrifuge (3), and the second discharge port of the horizontal centrifuge (3) is connected with the storage tank (10).
4. The apparatus for treating washing wastewater containing radioactivity according to claim 1, wherein: the fine filtration device (5) is internally provided with a PP cotton filter element (501), a first activated carbon filter element (502) and an RO membrane filter element (503) which are sequentially arranged from left to right, and the PP cotton filter element (501), the first activated carbon filter element (502) and the RO membrane filter element (503) are sequentially connected in series.
5. The apparatus for treating washing wastewater containing radioactivity according to claim 1, wherein: a first separator (601), a second separator (602) and a third separator (603) are arranged in the ion exchanger (6), an anion resin layer (604) is arranged between the first separator (601) and the second separator (602), and a cation resin layer (605) is arranged between the second separator (602) and the third separator (603).
6. The apparatus for treating washing wastewater containing radioactivity according to claim 1, wherein: and a water outlet II is arranged on the right side of the detection device (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574304.3U CN210805259U (en) | 2019-09-21 | 2019-09-21 | Treatment equipment for treating washing wastewater containing radioactivity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574304.3U CN210805259U (en) | 2019-09-21 | 2019-09-21 | Treatment equipment for treating washing wastewater containing radioactivity |
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| CN210805259U true CN210805259U (en) | 2020-06-19 |
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| CN201921574304.3U Active CN210805259U (en) | 2019-09-21 | 2019-09-21 | Treatment equipment for treating washing wastewater containing radioactivity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413928A (en) * | 2021-06-23 | 2021-09-21 | 中国核动力研究设计院 | Automatic nickel-63 separation device and separation process thereof |
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2019
- 2019-09-21 CN CN201921574304.3U patent/CN210805259U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113413928A (en) * | 2021-06-23 | 2021-09-21 | 中国核动力研究设计院 | Automatic nickel-63 separation device and separation process thereof |
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