CN214141976U - A processing system for sodium bromide waste water - Google Patents
A processing system for sodium bromide waste water Download PDFInfo
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- CN214141976U CN214141976U CN202022687561.7U CN202022687561U CN214141976U CN 214141976 U CN214141976 U CN 214141976U CN 202022687561 U CN202022687561 U CN 202022687561U CN 214141976 U CN214141976 U CN 214141976U
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- sodium bromide
- output pipeline
- concentrated
- water
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- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 title claims abstract description 64
- 239000002351 wastewater Substances 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 239000012528 membrane Substances 0.000 claims abstract description 18
- 238000005352 clarification Methods 0.000 claims abstract description 13
- 238000000909 electrodialysis Methods 0.000 claims abstract description 13
- 230000005684 electric field Effects 0.000 claims abstract description 11
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 11
- 238000002425 crystallisation Methods 0.000 claims abstract description 10
- 230000008025 crystallization Effects 0.000 claims abstract description 10
- 239000003011 anion exchange membrane Substances 0.000 claims abstract description 9
- 238000005341 cation exchange Methods 0.000 claims abstract description 9
- 238000001223 reverse osmosis Methods 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 238000010612 desalination reaction Methods 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 abstract 3
- 239000000243 solution Substances 0.000 description 9
- 229920005557 bromobutyl Polymers 0.000 description 8
- 238000005192 partition Methods 0.000 description 8
- 229920005549 butyl rubber Polymers 0.000 description 7
- 239000013505 freshwater Substances 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 150000002500 ions Chemical class 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 238000004073 vulcanization Methods 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 241001411320 Eriogonum inflatum Species 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model particularly relates to a processing system for sodium bromide waste water, including the electrodialysis unit, filter pressing device, the equalizing basin that connects gradually, the clarification tank, the multi-media filter, ultrafiltration device, the electrodialysis unit includes concentrated water input pipeline, concentrated water output pipeline, the desalination water output pipeline, the electric field unit, a plurality of settings are in the electric field unit and staggered arrangement's cation exchange membrane and anion exchange membrane, be provided with the spacer net between cation exchange membrane and the adjacent anion exchange membrane, spacer net one end respectively with concentrated water input pipeline, ultrafiltration device is connected, the spacer net other end respectively with concentrated water output pipeline, the desalination water output pipeline is connected. The utility model discloses an electrodialysis technique is desalted, is concentrated and is retrieved to sodium bromide waste water, compares with other concentration technique, and concentrated degree stalk is high, and the dense water yield is few, the investment and the running cost of reducible follow-up crystallization.
Description
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, concretely relates to a processing system for sodium bromide waste water.
Background
Brominated butyl rubber (BIIR) is a modified product of IIR, and the aim of modification is to improve the activity of IIR, improve the compatibility of IIR with unsaturated rubber, improve the self-adhesion, mutual adhesion and co-crosslinking capacity, and simultaneously keep the original characteristics of IIR. After IIR bromination, crosslinking positions are increased, and the reactivity of double bonds is enhanced. The brominated butyl rubber has the advantages of higher vulcanization speed and stronger vulcanization adaptability due to smaller bond energy of a C-Br bond and higher vulcanization reaction activity of the brominated butyl rubber, and has better co-vulcanization performance with general rubber. Compared with common butyl rubber, the brominated butyl rubber has the advantages of high vulcanization speed, good compatibility with natural rubber and styrene butadiene rubber and better heat resistance. With such many advantages, brominated butyl rubber is gradually replacing common butyl rubber in various application fields, such as radial tires, bias tires, sidewalls, inner tubes, container liners, medicine bottle stoppers, machine liners and other industrial products. Brominated butyl rubber is currently an irreplaceable raw material for the manufacture of tubeless tires and medical articles.
In the production process of brominated butyl rubber, industrial wastewater mainly containing sodium bromide is generated. For environmental protection purposes, these waste waters must be effectively treated. The existing process mostly adopts the steps of directly concentrating, burning the sodium bromide high waste, dissolving salt with water after burning, concentrating and refining. And (3) carrying out secondary dilution on distilled water (cod is about 30000) and then carrying out sewage treatment. The process environment is severe, the requirement of salt incineration on equipment is high, and the equipment is easy to damage. The overall route cost is high.
The traditional purification treatment of sodium bromide wastewater adopts the processes of chemical precipitation, multi-medium filtration, ultrafiltration, reverse osmosis, evaporative crystallization and the like, and has the defects of high energy consumption, complex process flow, high cost and the like. General reverse osmosis is concentrated to about 5%, high pressure reverse osmosis can be concentrated to about 10%, the limit can be concentrated to 12%, however, reverse osmosis membrane is concentrated to 12%, need the high-pressure pump of 1000 meters above lift at least, the energy consumption is higher, and because other complicated ions in the sodium bromide waste water, very easily cause the dirty stifled of reverse osmosis membrane in dense water side, a large amount of COD in addition, the tail end evaporation crystallization device of thick water device of silica, it is stifled also very easily to go out the dirt at the heating pipe, influence evaporation crystallization device's normal operating mode, the operating efficiency reduces, and the cost is increased. Chinese utility model patent CN106830144A discloses a processing method of high salt high concentration organic waste water, mentions and gets rid of volatile organic compounds earlier with the ozone method, but its inside remaining salinity and difficult volatile organic compounds retrieve the separation or solid useless processing, cause a large amount of salt to exist in solid useless, and the actual degree of difficulty of further processing is very big.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, thereby providing a treatment system for sodium bromide wastewater.
The utility model provides a technical scheme that its technical problem adopted is:
a treatment system for sodium bromide wastewater comprises an electrodialysis unit, a filter pressing device, and a regulating reservoir, a clarification tank, a multi-medium filter and an ultrafiltration device which are sequentially connected, wherein the bottoms of the regulating reservoir and the clarification tank are connected with the filter pressing device; the electrodialysis unit comprises a concentrated water input pipeline, a concentrated water output pipeline, a desalted water output pipeline, an electric field unit, a plurality of cation exchange membranes and anion exchange membranes which are arranged in the electric field unit in a staggered mode, a separation net is arranged between each cation exchange membrane and each adjacent anion exchange membrane, one end of each separation net is connected with the concentrated water input pipeline and the ultrafiltration device, and the other end of each separation net is connected with the concentrated water output pipeline and the desalted water output pipeline; the other end of the concentrated water output pipeline is connected with an evaporative crystallization unit, and the other end of the desalted water output pipeline is sequentially connected with an oxidation device, a reverse osmosis device and a water production tank.
Further, a dosing device is arranged in the clarification tank.
Furthermore, the reverse osmosis device is connected with a pipeline of the regulating reservoir.
Furthermore, the filter pressing device is connected with the regulating tank through a filter pressing water return pipeline.
Compared with the prior art, the utility model, have following advantage and effect: the electrodialysis technology is adopted to desalt, concentrate and recover the sodium bromide wastewater, and compared with other concentration technologies, the concentration degree is high, the water yield of concentrated water is low, and the investment and the operation cost of subsequent crystallization can be reduced; through the treatment mode of the oxidation device and the reverse osmosis device, the pollution blockage of the reverse osmosis device after long-time work is effectively prevented, and the service life of the whole treatment system is prolonged.
Drawings
Fig. 1 is a schematic diagram of a system structure according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an electrodialysis unit in the present embodiment.
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
Examples are given.
As shown in fig. 1, the present embodiment includes an electrodialysis unit 1, a filter press device 2, and a regulating reservoir 3, a clarification tank 4, a multimedia filter 5, and an ultrafiltration device 6 connected in sequence. The adjusting tank 3 is used for leading-in and accumulating sodium bromide waste water and simultaneously plays a role in adjusting the output of the sodium bromide waste water, and a dosing device 41 is arranged in the clarification tank 4 and used for putting a coagulant and a flocculating agent into the sodium bromide waste water in the clarification tank 4 so as to accelerate the sedimentation rate of sludge in the sodium bromide waste water. The filter pressing device 2 is respectively connected with the bottom of the regulating tank 3 and the bottom of the clarification tank 4, and specifically, after the sodium bromide wastewater is introduced into the regulating tank 3, the sodium bromide wastewater stays for a long time, so that preliminary sludge precipitation can occur, and the sludge precipitation can be introduced into the filter pressing device 2 through the bottom of the regulating tank 3; after the flocculating agent is put into the sodium bromide wastewater, the sludge is accelerated to precipitate and is guided into the filter pressing device 2 through the bottom of the clarification tank 4. The filter pressing device 2 is connected with the adjusting tank 3 through a filter pressing water backflow pipeline 91, the filter pressing device 2 is used for processing the introduced sludge into mud cakes and filter pressing water generated in the filter pressing process, the mud cakes can be transported away for other processing, and the filter pressing water can be introduced into the adjusting tank 3 through the filter pressing water backflow pipeline 91 for secondary processing. Sodium bromide waste water loops through multimedium filter 5 and ultrafiltration device 6 via clarification tank 4 and filters preliminary treatment to get rid of large particulate matter such as suspended solid, colloid in the sodium bromide waste water, guarantee that the turbidity of the sodium bromide waste water that gets into electrodialysis system 1 is less than 1 NTU.
As shown in fig. 2, the electrodialysis unit 1 includes a concentrated water input pipeline 11, a concentrated water output pipeline 12, a desalted water output pipeline 13, an electric field unit 14, and a plurality of cation exchange membranes 15 and anion exchange membranes 16 arranged in the electric field unit 14 and staggered, wherein a separation net 17 is arranged between the cation exchange membrane 15 and the adjacent anion exchange membrane 16, and the separation net 17 can allow liquid to pass through. One end of the screen 17 is respectively connected with the concentrated water input pipeline 11 and the ultrafiltration device 6, and the other end of the screen 17 is respectively connected with the concentrated water output pipeline 12 and the desalted water output pipeline 13. When the solution with ions (sodium bromide wastewater in the embodiment) passes through the separation nets 17, under the action of the direct current electric field generated by the electric field unit 14, the cations and anions in the solution can move directionally, i.e. the anions move towards the anode, the cations move towards the cathode, the cations meet the positive membrane on the moving path and pass through the positive membrane, the cations meet the negative membrane on the moving path and are intercepted, and the anions meet the negative membrane on the moving path and pass through the positive membrane and are intercepted. Namely, ions in the solution passing through some of the separation nets 17 enter the other separation net 17 through the exchange membranes at the two sides, and the concentration of the solution in the separation net 17 is gradually reduced; some ions in the solution in the separation net 17 are intercepted by the exchange membrane arranged just oppositely, and the concentration of the solution is higher due to the entering of the ions at two sides. In this embodiment, for convenience of understanding, the mesh 17 in which the solution concentration gradually decreases is referred to as a fresh water mesh 17, and the mesh 17 in which the solution concentration gradually increases is referred to as a concentrated water mesh 17. Specifically, the concentrated water is introduced into the concentrated water inlet pipeline 11 towards the concentrated water partition net 17, the sodium bromide wastewater is introduced into the ultrafiltration device 6 towards the fresh water partition net 17, under the action of the electric field unit 14, sodium ions in the fresh water partition net 17 migrate towards the cathode, bromide ions migrate towards the anode and migrate into the adjacent concentrated water partition net 17 through the cation exchange membrane 15 and the anion exchange membrane 16 respectively, the concentration of the sodium bromide in the fresh water partition net 17 is gradually reduced in the process, the concentration of the sodium bromide in the adjacent concentrated water partition net 17 is correspondingly gradually increased, finally, the fresh water partition net 17 outputs desalted liquid towards the desalted water outlet pipeline 13, and the concentrated water partition net 17 outputs concentrated liquid towards the concentrated water outlet pipeline 12.
The other end of the concentrated water output pipeline 12 is connected with an evaporative crystallization unit 7, and the concentrated solution enters the evaporative crystallization unit 7 to prepare high-purity crystals. The desalination water output pipeline 13 other end has connected gradually oxidation unit 8, reverse osmosis unit 9, produces water tank 10, and reverse osmosis unit 9 passes through the pipe connection with equalizing basin 3, and is concrete, and the desalination liquid enters into reverse osmosis unit 9 behind oxidation unit 8 and handles, obtains dense water and fresh water, and fresh water gets into and produces water tank 10 and saves the retrieval and utilization, and dense water gets into 3 secondary treatment of equalizing basin through the pipeline, the high-usage.
The treatment system for sodium bromide wastewater described in this embodiment adopts electrodialysis technology to desalt, concentrate and recover sodium bromide wastewater, and compared with other concentration technologies, the treatment system has the advantages of high concentration degree, low concentrated water yield and capability of reducing investment and operation cost of subsequent crystallization. Through the treatment mode of the oxidation device 8 and the reverse osmosis device 9, the pollution and blockage of the reverse osmosis device 9 are effectively prevented, and the service life of the whole treatment system is prolonged.
The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. A processing system for sodium bromide waste water which characterized in that: the device comprises an electrodialysis unit, a filter pressing device, and a regulating reservoir, a clarification tank, a multi-medium filter and an ultrafiltration device which are connected in sequence, wherein the bottoms of the regulating reservoir and the clarification tank are connected with the filter pressing device;
the electrodialysis unit comprises a concentrated water input pipeline, a concentrated water output pipeline, a desalted water output pipeline, an electric field unit, a plurality of cation exchange membranes and anion exchange membranes which are arranged in the electric field unit in a staggered mode, a separation net is arranged between each cation exchange membrane and each adjacent anion exchange membrane, one end of each separation net is connected with the concentrated water input pipeline and the ultrafiltration device, and the other end of each separation net is connected with the concentrated water output pipeline and the desalted water output pipeline;
the other end of the concentrated water output pipeline is connected with an evaporative crystallization unit, and the other end of the desalted water output pipeline is sequentially connected with an oxidation device, a reverse osmosis device and a water production tank.
2. The treatment system for sodium bromide wastewater as set forth in claim 1, wherein: a dosing device is arranged in the clarification tank.
3. The treatment system for sodium bromide wastewater as set forth in claim 1, wherein: the reverse osmosis device is connected with the regulating tank through a pipeline.
4. The treatment system for sodium bromide wastewater as set forth in claim 1, wherein: the filter pressing device is connected with the regulating tank through a filter pressing water return pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022687561.7U CN214141976U (en) | 2020-11-19 | 2020-11-19 | A processing system for sodium bromide waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022687561.7U CN214141976U (en) | 2020-11-19 | 2020-11-19 | A processing system for sodium bromide waste water |
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| Publication Number | Publication Date |
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| CN214141976U true CN214141976U (en) | 2021-09-07 |
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| CN202022687561.7U Active CN214141976U (en) | 2020-11-19 | 2020-11-19 | A processing system for sodium bromide waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118954840A (en) * | 2024-09-02 | 2024-11-15 | 江苏通用环境工程有限公司 | A method for treating high-concentration salt-containing organic wastewater |
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- 2020-11-19 CN CN202022687561.7U patent/CN214141976U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118954840A (en) * | 2024-09-02 | 2024-11-15 | 江苏通用环境工程有限公司 | A method for treating high-concentration salt-containing organic wastewater |
| CN118954840B (en) * | 2024-09-02 | 2025-06-24 | 江苏通用环境工程有限公司 | Method for treating high-concentration salt-containing organic wastewater |
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