CN215049361U - Ion adsorption bed type sewage treatment device - Google Patents
Ion adsorption bed type sewage treatment device Download PDFInfo
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- CN215049361U CN215049361U CN202120892837.7U CN202120892837U CN215049361U CN 215049361 U CN215049361 U CN 215049361U CN 202120892837 U CN202120892837 U CN 202120892837U CN 215049361 U CN215049361 U CN 215049361U
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- 239000010865 sewage Substances 0.000 title claims abstract description 51
- 238000001179 sorption measurement Methods 0.000 title claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003463 adsorbent Substances 0.000 claims description 24
- 239000011888 foil Substances 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 9
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 description 29
- 150000002500 ions Chemical class 0.000 description 22
- 239000002585 base Substances 0.000 description 11
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 229910021536 Zeolite Inorganic materials 0.000 description 6
- 239000010457 zeolite Substances 0.000 description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 230000002285 radioactive effect Effects 0.000 description 5
- 239000000941 radioactive substance Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000010436 fluorite Substances 0.000 description 4
- 229910052722 tritium Inorganic materials 0.000 description 4
- -1 tritium ions Chemical class 0.000 description 4
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002354 radioactive wastewater Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- TVFDJXOCXUVLDH-OUBTZVSYSA-N cesium-134 Chemical compound [134Cs] TVFDJXOCXUVLDH-OUBTZVSYSA-N 0.000 description 2
- TVFDJXOCXUVLDH-RNFDNDRNSA-N cesium-137 Chemical compound [137Cs] TVFDJXOCXUVLDH-RNFDNDRNSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- ZCYVEMRRCGMTRW-NJFSPNSNSA-N iodine-129 atom Chemical compound [129I] ZCYVEMRRCGMTRW-NJFSPNSNSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 235000011437 Amygdalus communis Nutrition 0.000 description 1
- 229910021532 Calcite Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-NJFSPNSNSA-N Carbon-14 Chemical compound [14C] OKTJSMMVPCPJKN-NJFSPNSNSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-VVKOMZTBSA-N Dideuterium Chemical compound [2H][2H] UFHFLCQGNIYNRP-VVKOMZTBSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000220304 Prunus dulcis Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 235000020224 almond Nutrition 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses an ion is adsorbing bed formula sewage treatment plant, including ion exchanger and pipeline, the bottom and the top of ion exchanger, positive sewage treatment ware, negative sewage treatment ware are equipped with water inlet and delivery port respectively, and the delivery port of positive sewage treatment ware passes through the water inlet of the negative sewage treatment ware of tube coupling, and the water inlet of tube coupling ion exchanger is passed through to the delivery port of negative sewage treatment ware, the utility model has the characteristics of the processing cost is low, efficient, simple structure.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment device, especially, relate to an ion adsorption bed formula sewage treatment plant.
Background
A large amount of waste water is produced in daily production and life, the types of the waste water are various, the waste water is classified according to the main components of pollutants contained in the waste water, can be divided into acid wastewater, alkaline wastewater, cyanide-containing wastewater, chromium-containing wastewater, cadmium-containing wastewater, mercury-containing wastewater, phenol-containing wastewater, aldehyde-containing wastewater, oil-containing wastewater, sulfur-containing wastewater, organic phosphorus-containing wastewater, radioactive wastewater and the like, the current sewage treatment mode is mature, however, there is no special equipment for treating wastewater containing polar ions, such as radioactive wastewater, which is mainly from nuclear power plants, and the processes of evaporation and filtration are generally adopted for treating wastewater generated by nuclear power plants at present, because most radioactive elements in wastewater are not volatile, and by utilizing the characteristic, heating the wastewater to evaporate the wastewater, and concentrating the remaining radioactive substances which cannot be evaporated; the method has two advantages, one is that the nuclear power station has a lot of useless waste heat in the running process, and the energy is not consumed for heating the waste water; secondly, the evaporation method basically does not need to use other substances, and does not generate other forms of pollutants due to the transfer of the pollutants like other methods. Another method is a filtration method, in which a pipe through which wastewater flows is provided with a resin specially used for adsorbing radioactive substances, so that water flows away, the radioactive substances are left in the resin, and after a period of time, the resin filled with the radioactive substances can be replaced by new resin, and the volume of the resin filled with the radioactive substances can be reduced by compression and other methods, and after collection, cement is poured for sealing, and if the radioactive strength in the resin is not high, the resin can be placed into an iron bucket for sealing. The two methods basically solve the problems, but have the problems of higher treatment cost and lower treatment efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to improve the defects of the prior art and provide an ion adsorption bed type sewage treatment device with low treatment cost, high efficiency and simple structure.
The utility model aims at realizing like this, an ion adsorption bed formula sewage treatment plant, including ion exchanger and pipeline, its characteristics are that the bottom and the top of ion exchanger, positive sewage treatment ware, negative sewage treatment ware are equipped with water inlet and delivery port respectively, and the delivery port of positive sewage treatment ware passes through the water inlet of the negative sewage treatment ware of tube coupling, and the delivery port of negative sewage treatment ware passes through the water inlet of tube coupling ion exchanger.
In order to further realize the utility model discloses an object, can be positive sewage treatment ware be that first shells inner wall has covered first lead foil layer completely, be equipped with first negative pole body near first lead foil layer, the cover of the positive adsorbent layer sets up at first negative pole internal side, the inboard cover of positive adsorbent layer has first ionic membrane, first shell internal center is equipped with first positive pole body.
In order to further achieve the object of the present invention, the first cathode body may be a circular ring body or a cylinder body arranged at intervals.
In order to further realize the object of the present invention, the first anode body can be inserted into the first base, and the first base is installed in the first housing through the bracket.
In order to further realize the utility model discloses an object, can be negative sewage treatment ware be that second shells inner wall has covered the second lead foil layer completely, be equipped with the second anode body near the second lead foil layer, the cover of the hydrophilic negative adsorbent layer sets up at the second anode body inboard, the inboard cover of the hydrophilic negative adsorbent layer has the second ionic membrane, the second shell internal center is equipped with the second negative pole body.
In order to further achieve the object of the present invention, the second anode body may be a circular ring body or a cylinder body arranged at intervals.
In order to further realize the purpose of the present invention, the second cathode body may be inserted into the second base, and the second base is installed in the second housing through a bracket.
Compared with the prior art, the utility model has the following characteristics of showing and positive effect: the utility model utilizes the polarity of ions in the wastewater, accelerates the movement of ions with polarity through the ionization device, and respectively adsorbs the ionic pollutants with different polarities into different adsorption layers, thus removing the ionic pollutants in the water and solving the problem of ionic pollution; the lead foil layer prevents the leakage of radioactivity; the ionic membrane prevents large-particle impurities from entering the adsorption layer, so that the adsorption efficiency is reduced; the first anode body and the second cathode body are inserted in the base, so that the first anode body and the second cathode body can be replaced after being consumed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the positive sewage treatment device of the present invention.
Fig. 3 is a schematic cross-sectional structure of fig. 2.
FIG. 4 is a schematic structural diagram of the negative sewage treatment device of the present invention.
Fig. 5 is a schematic cross-sectional structure of fig. 4.
In the figure: 1. positive sewage treatment ware, 2, negative sewage treatment ware, 3, ion exchanger, 4, pipeline, 5, water inlet, 6, delivery port, 11, first casing, 12, first lead foil layer, 13, first cathode body, 14, the positive affinity adsorbent layer, 15, first ionic membrane, 16, first anode body, 17, first base, 21, second casing, 22, second lead foil layer, 23, second cathode body, 24, the negative affinity adsorbent layer, 25, second ionic membrane, 26, second anode body, 27, second base.
Detailed Description
An ion adsorption bed type sewage treatment device, referring to fig. 1, comprises a conventional ion exchanger 3 and a pipeline 4, wherein the bottom and the top of the ion exchanger 3, the bottom of a positive sewage treatment device 1 and the bottom of a negative sewage treatment device 2 are respectively provided with a water inlet 5 and a water outlet 6, the water outlet 6 of the positive sewage treatment device 1 is connected with the water inlet 5 of the negative sewage treatment device 2 through the pipeline 4, the water outlet 6 of the negative sewage treatment device 2 is connected with the water inlet 5 of the ion exchanger 3 through the pipeline, the water inlet 5 of the positive sewage treatment device 1 is connected with external sewage to be treated through the pipeline, the water outlet 6 of the ion exchanger 3 is connected with an external purified water storage device, and the positions of the positive sewage treatment device 1 and the negative sewage treatment device 2 can be changed as required.
Referring to fig. 2 and 3, in the positive sewage treatment device 1, the inner wall of the first casing 11 is completely covered with the first lead foil layer 12, the first cathode body 13 is arranged close to the first lead foil layer 12, an insulating layer is arranged between the first cathode body 13 and the first lead foil layer 12, the hydrophilic positive adsorbent layer 14 is covered and arranged at the inner side of the first cathode body 13, the inner side of the hydrophilic positive adsorbent layer 14 is covered with the first ionic membrane 15, the first anode body 16 is arranged at the inner center of the first casing 11, the first cathode body 13 is a circular ring body or a cylinder body arranged at intervals, in this embodiment, the first cathode body 13 is a circular ring body, the first anode body 16 is inserted into the first base 17, the first base 17 is installed in the first housing 11 through a bracket, so that the first anode body 16 can be replaced conveniently, in order to facilitate replacement of the adsorbent layer and other components inside, a movable sealing cover may be provided on the top and/or bottom of the first housing 11.
Referring to fig. 4 and 5, in the negative sewage treatment device 2, the inner wall of the second casing 21 is completely covered with the second lead foil layer 22, the second anode 26 is arranged close to the second lead foil layer 22, the hydrophilic negative adsorbent layer 24 is covered and arranged at the inner side of the second anode 26, the inner side of the hydrophilic negative adsorbent layer 24 is covered with the second ion membrane 25, the second cathode 23 is arranged at the inner center of the second casing 21, the second anode 26 is a circular ring or a cylinder arranged at intervals, in this embodiment, the second anode 26 is a cylinder arranged at intervals, an insulating layer is arranged between the second anode 26 and the second aluminum foil layer 22, the second cathode body 23 is inserted into the second base 27, the second base 27 is arranged in the second shell 21 through a bracket, in order to facilitate replacement of the adsorbent layer and other components inside, a movable sealing cover may be provided on the top and/or bottom of the second casing 21.
Radioactive wastewater generated by a nuclear power station mainly contains tritium, iodine 129, carbon 14, cesium 134, cesium 137 and other radioactive elements, and cannot be directly discharged. Tritium is one of hydrogen isotopes, the atomic nucleus has a proton and two neutrons, the radioactive nucleus becomes super heavy hydrogen and is a substance of thermonuclear reaction, and tritium ions are positive and belong to the parent-negative isotopes; the ion of iodine 129 is negative and belongs to a parent-positive isotope; the carbon 14 ion is positive and is a negative isotope, and others are not described. According to the nuclear structure, the radioactive residues in the nuclear waste water can be classified into the parent-negative isotope and the parent-positive isotope. The positive and negative adsorbent layers are respectively decomposed into anion-containing and cation-containing substances, for example, the positive adsorbent layer can be a zeolite layer, the zeolite is a common natural ore and is a general name of zeolite minerals, the zeolite layer is a water-containing alkali or alkaline earth metal aluminosilicate mineral and is mainly a water-containing aluminosilicate of calcium, sodium, barium, strontium and potassium, and the zeolite has ion exchange property, adsorption separation property, catalysis property, stability, chemical reactivity, reversible dehydration property, electric conductivity and the like. The zeolite is mainly produced in cracks of volcanic rock or almond bodies and coexists with calcite, pith and quartz; it is also produced in volcaniclastic sedimentary rock and hot spring sedimentary rock, and is mainly characterized by that the ion of the above-mentioned elements and aluminosilicate ion are combined loosely, so that they are excellent adsorbent for positive isotope. The negative adsorbent layer can adopt a fluorite layer, the fluorite is a natural ore, the main component of the fluorite is calcium fluoride, the fluorite has a very fine net structure and very active chemical properties, and free fluorine ions exist among molecules under the condition of water, so that the negative adsorbent layer is an adsorbent for negative isotopes of tritium, cesium 134, cesium 137 and similar isotopes thereof.
When the wastewater containing ions flows through the positive wastewater treatment device and the negative wastewater treatment device, cations and anions in the wastewater are respectively pushed and attracted to move towards the first cathode body and the first anode body, the cations and the anions are adsorbed when moving to the hydrophilic positive adsorbent layer and the hydrophilic negative adsorbent layer, and the rest of the wastewater flows through the ion exchanger for purification, so that the purification of the wastewater containing ions is completed.
The utility model is suitable for a solve the present nuclear pollution sewage quantity of nuclear of Japanese Fudao nuclear power station big problem very much, place large-scale horizontal at the deep sea seabed the utility model discloses the nuclear waste water is handled to the device, handles the back that finishes the utility model discloses the device top is with the mode of artifical reef of making with it permanent sealing up.
Claims (7)
1. An ion adsorption bed type sewage treatment device comprises an ion exchanger and a pipeline, and is characterized in that the bottom and the top of the ion exchanger, a positive sewage treatment device and a negative sewage treatment device are respectively provided with a water inlet and a water outlet, the water outlet of the positive sewage treatment device is connected with the water inlet of the negative sewage treatment device through the pipeline, and the water outlet of the negative sewage treatment device is connected with the water inlet of the ion exchanger through the pipeline.
2. The ion-adsorbing bed-type sewage treatment plant as claimed in claim 1, wherein the positive sewage treatment plant comprises a first casing having an inner wall completely covered with a first lead foil layer, a first cathode disposed adjacent to the first lead foil layer, a positive adsorbent layer covering the inner side of the first cathode, a first ionic membrane covering the inner side of the positive adsorbent layer, and a first anode disposed at the center of the first casing.
3. The ion-adsorbing bed-type sewage treatment plant as claimed in claim 2, wherein said first cathode is a circular ring or a cylinder disposed at intervals.
4. The ion-adsorbing bed-type sewage treatment plant as claimed in claim 2, wherein said first anode body is inserted into a first base, and said first base is mounted in said first housing through a bracket.
5. The ion-adsorbing bed-type sewage treatment plant as claimed in claim 1, wherein the negative sewage treatment plant comprises a second housing having an inner wall completely covered with a second lead foil layer, a second anode disposed adjacent to the second lead foil layer, a layer of a hydrophilic negative adsorbent disposed inside the second anode, a second ion membrane disposed inside the layer of a hydrophilic negative adsorbent, and a second cathode disposed in the center of the second housing.
6. The ion-adsorbing bed-type sewage treatment plant as claimed in claim 5, wherein said second anode body is a circular ring or a cylinder disposed at intervals.
7. The ion-adsorbing bed-type sewage treatment plant as claimed in claim 5, wherein said second cathode is inserted into a second base, and said second base is mounted in a second housing by means of a bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120892837.7U CN215049361U (en) | 2021-04-28 | 2021-04-28 | Ion adsorption bed type sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120892837.7U CN215049361U (en) | 2021-04-28 | 2021-04-28 | Ion adsorption bed type sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215049361U true CN215049361U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120892837.7U Expired - Fee Related CN215049361U (en) | 2021-04-28 | 2021-04-28 | Ion adsorption bed type sewage treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215049361U (en) |
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2021
- 2021-04-28 CN CN202120892837.7U patent/CN215049361U/en not_active Expired - Fee Related
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Granted publication date: 20211207 |