CN221191752U - Integrated device for treating organic heavy metal-containing wastewater - Google Patents
Integrated device for treating organic heavy metal-containing wastewater Download PDFInfo
- Publication number
- CN221191752U CN221191752U CN202323385872.8U CN202323385872U CN221191752U CN 221191752 U CN221191752 U CN 221191752U CN 202323385872 U CN202323385872 U CN 202323385872U CN 221191752 U CN221191752 U CN 221191752U
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- Prior art keywords
- heavy metal
- tank
- wastewater
- resin tower
- treatment
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- 239000002351 wastewater Substances 0.000 title claims abstract description 80
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 48
- 229920005989 resin Polymers 0.000 claims abstract description 48
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 37
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 15
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000011001 backwashing Methods 0.000 description 9
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 5
- 239000003456 ion exchange resin Substances 0.000 description 5
- 229920003303 ion-exchange polymer Polymers 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides an integrated device for treating organic heavy metal-containing wastewater, which relates to the technical field of heavy metal wastewater treatment and comprises a wastewater tank for containing organic heavy metal wastewater, a BDD electrode electrolysis unit for heavy metal electrolysis treatment and a resin tower for heavy metal resin treatment; a heat exchanger is arranged in the waste water tank; the waste water tank and the BDD electrode electrolysis unit are arranged in a bidirectional conveying way, and the BDD electrode electrolysis unit is connected with an electrolysis power supply; the waste water tank and the resin tower are arranged in a unidirectional conveying way. According to the utility model, heavy metal wastewater is electrolyzed by the BDD electrode to remove most of heavy metals, so that the heavy metal wastewater can be effectively prevented from directly entering the resin tower, the structure in the resin tower can be prevented from being damaged, and the cost is saved.
Description
Technical Field
The utility model relates to the technical field of heavy metal wastewater treatment, in particular to an integrated device for treating organic heavy metal-containing wastewater.
Background
At present, the battery electronics industry and most chemical industry rapidly develop, the production scale of the battery electronics industry is enlarged, and the waste water generated in the production process of the type of industry contains more heavy metals. National and local laws and regulations have strict control indexes on heavy metal emission, and wastewater produced by enterprises of the type needs to be treated for removing heavy metals so as to reach emission standards.
The existing treatment methods of wastewater containing heavy metals mainly comprise a precipitation method, a membrane distillation method and an ion exchange method, and the precipitation method is used for separating heavy metals in water from water in a solid-liquid separation mode in a precipitation mode by adding various medicaments so as to achieve the purpose of removal.
The membrane distillation method has high construction cost and high maintenance cost.
The ion exchange method can effectively treat the wastewater containing heavy metals, and meanwhile, the operation and maintenance cost is low, but the requirement of the ion exchange resin on the inflow water is high, and if the COD concentration of the main pollutant in the water is high, the ion exchange resin can be blocked or damaged, so that the COD concentration of the wastewater needs to be strictly controlled before the wastewater enters the ion exchange resin.
Disclosure of utility model
The utility model aims to provide an integrated device for treating organic heavy metal-containing wastewater, which is used for realizing the technical effect of multiple and efficient removal of heavy metals in wastewater.
The utility model is realized by the following technical scheme: comprises a waste water tank for containing organic heavy metal waste water, a BDD electrode electrolysis unit for heavy metal electrolysis treatment and a resin tower for heavy metal resin treatment;
a heat exchanger is arranged in the waste water tank;
The wastewater tank and the BDD electrode electrolysis unit are arranged in a bidirectional conveying way, and the BDD electrode electrolysis unit is connected with an electrolysis power supply;
The waste water tank and the resin tower are arranged in a unidirectional conveying way.
In order to better realize the utility model, the integrated device further comprises a sodium hydroxide backwashing tank, wherein the sodium hydroxide backwashing tank is arranged at the tail part of the resin tower and is used for conveying backwashing liquid to the resin tower.
In order to better realize the utility model, the resin tower is further connected with a liquid outlet pipe.
In order to better realize the utility model, a backwash pump is arranged between the resin tower and the sodium hydroxide backwash tank, and the resin tower is also connected with a backwash liquid discharge pipe.
In order to better realize the utility model, a water outlet pump is further arranged between the resin tower and the wastewater tank.
In order to better realize the utility model, an electrolysis circulating pump is further arranged between the waste water tank and the BDD electrode electrolysis unit.
In order to better realize the utility model, the waste water tank is further connected with a temperature detector and a COD on-line detector.
The beneficial effects of the utility model are as follows:
According to the utility model, heavy metal wastewater is electrolyzed by the BDD electrode to remove most of heavy metals, so that the heavy metal wastewater can be effectively prevented from directly entering the resin tower, the structure in the resin tower can be prevented from being damaged, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the following brief description will be given of the drawings required for the present utility model, it being understood that the following drawings only illustrate some embodiments of the present utility model and are therefore not to be considered limiting in scope, and that other relevant drawings may be obtained from these drawings without the benefit of the inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of an integrated device according to the present utility model;
Icon:
10-waste water tank, 11-heat exchanger, 12-electrolytic circulating pump, 13-COD on-line detector, 14-filter, 15-water inlet pump, 20-BDD electrode electrolytic unit, 21-electrolytic power supply, 30-resin tower, 31-drain pipe, 32-water outlet pump, 40-sodium hydroxide backwash tank, 41-backwash pump, 42-backwash liquid discharge pipe.
Detailed Description
The technical scheme of the present utility model will be described below with reference to the accompanying drawings.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present utility model, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
The utility model provides an integrated device for treating organic heavy metal-containing wastewater, which has the technical problems that in the prior art, the treatment method for heavy metal-containing wastewater is more, when the treatment is carried out by adopting an ion exchange method, the ion exchange resin is blocked or damaged due to higher COD concentration content in the wastewater, so that the treatment condition is poor, the cost is higher and the like.
The utility model mainly comprises a wastewater tank 10 for containing organic heavy metal wastewater, a BDD electrode electrolysis unit 20 for organic heavy metal electrolysis treatment and a resin tower 30 for heavy metal resin treatment, wherein a heat exchanger 11 is arranged in the wastewater tank 10, as shown in the figure, the wastewater tank 10 and the BDD electrode electrolysis unit 20 are arranged in a bidirectional conveying way through a conveying pipe, and particularly a water outlet pipe and a water return pipe which are communicated with the BDD electrode electrolysis unit 20 are arranged on the wastewater tank 10, so that the organic heavy metal wastewater of the wastewater tank 10 can be conveyed into the BDD electrode electrolysis unit 20 for electrolysis, and the treated wastewater is conveyed back into the wastewater tank 10 after electrolysis and is circularly electrolyzed for a plurality of times, thereby removing most heavy metals and greatly reducing the concentration of heavy metals in the wastewater.
In order to achieve better effect of removing heavy metals by electrolysis, the electrode electrolytic material is a boron doped diamond coated electrode, the process electrode has extremely strong oxidizing capability, and an electrode power supply is also arranged, so that industrial electricity can be converted into equipment available power supply, in particular, alternating current is converted into low-voltage direct current, and the low-voltage direct current is connected with a BDD electrode electrolytic unit 20 to serve as an electrode plate for cathode and anode.
In the electrolysis process of the BDD electrode electrolysis unit 20, certain heat can be generated, waste water can be continuously heated, therefore, a heat exchanger 11 is arranged in a waste liquid tank, a tubular radiating disc or other structures are selected for the heat exchanger 11, the temperature of the waste water can not be increased, a temperature detector is arranged in the waste liquid tank, the temperature detector can be adjusted according to the current temperature condition in real time, when the temperature reaches a certain value, a heat exchange device is started to operate, when the temperature is lower than a limit value, the heat exchanger 11 stops operating, the waste water can have a certain temperature for the subsequent treatment in the resin tower 30 under the action of the BDD electrode electrolysis unit 20, and besides, the efficiency is improved, the heat exchanger 11 can be used for other places after the redundant heat is exchanged, and resources can be fully utilized.
In order to enable circulation between the wastewater tank 10 and the BDD electrode electrolysis unit 20, an electrolysis circulation pump 12 is also provided in the water outlet pipe.
In addition, a COD on-line detector 13 is provided in the wastewater tank 10, which can detect the heavy metal concentration of the wastewater in the wastewater tank 10 in real time, and when the set index is reached, the electrolytic circulation pump 12 is stopped, the electrolytic power supply 21 is stopped, and the circulation between the wastewater tank 10 and the resin tower 30 is started.
The waste water tank 10 and the resin tower 30 are arranged in a one-way conveying and circulating way, specifically, a water outlet pipe is arranged between the waste water tank 10 and the resin tower 30, and a water outlet pump 32 is arranged on the water outlet pipe, when the electrolytic circulating pump 12 is stopped, the water outlet pump 32 can be opened to enable the waste water in the waste water tank 10 to flow into the resin tower 30, heavy metal is removed again through ion exchange resin, then the waste water treated by the resin tower 30 is discharged from a liquid outlet pipe 31, the discharged waste water is water which can meet the set discharge requirement, or the water also needs to enter subsequent treatment to meet the detailed requirements such as purification and the like, and the specific subsequent treatment is selected according to the actual situation and also belongs to the prior art, and the subsequent treatment is not excessively described herein.
In order to make the structure of the apparatus reusable, it is necessary to perform backwashing and regeneration after the resin tower 30 is treated for a while, and therefore, a sodium hydroxide backwashing tank 40 is provided at the tail of the resin tower 30, and a backwashing pump 41 is provided between the resin tower 30 and the sodium hydroxide backwashing tank 40, so that the cleaning liquid is fed into the resin tower 30 to clean heavy metals adsorbed in the resin, and the waste water after backwashing is discharged from a backwashing liquid discharge pipe 42 and collected as waste liquid treatment or the like.
A filter 14 and a water inlet pump 15 are further provided before the heavy metal wastewater enters the wastewater tank 10, and most of impurities and the like can be removed under the action of the filter 14.
The working flow of the utility model is as follows:
Firstly, the waste water in the waste water tank 10 is conveyed into the BDD electrode electrolysis unit 20 through the electrolysis circulating pump 12 to carry out electrolysis to remove most heavy metals, the concentration of the heavy metals is detected through the COD on-line detector 13, after the set value is reached, the electrolysis circulating pump 12 and the electrolysis power supply 21 are closed, the water outlet pump 32 is started to carry out ion resin exchange on the resin tower 30, thereby removing the heavy metals in the waste water with high efficiency and high quality, the waste water is discharged to carry out subsequent purification or other treatment after the removal, the water outlet pump 32 is closed after the resin tower 30 is treated for a period of time, the backwash pump 41 is reached, the cleaning liquid is output into the resin tower 30 from the sodium hydroxide backwash tank 40 to carry out resin cleaning, and then the resin in the resin tower 30 can be reused, so that the cost is saved.
According to the utility model, heavy metal wastewater is electrolyzed by the BDD electrode to remove most of heavy metals, so that the heavy metal wastewater can be effectively prevented from directly entering the resin tower 30, the damage to the structure in the resin tower 30 is avoided, and the cost is saved.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (7)
1. An integrated device for treating organic heavy metal-containing wastewater is characterized by comprising a wastewater tank (10) for containing organic heavy metal wastewater, a BDD electrode electrolysis unit (20) for heavy metal electrolysis treatment and a resin tower (30) for heavy metal resin treatment;
a heat exchanger (11) is arranged in the waste water tank (10);
The waste water tank (10) and the BDD electrode electrolysis unit (20) are arranged in a bidirectional conveying mode, and the BDD electrode electrolysis unit (20) is connected with an electrolysis power supply (21);
the waste water tank (10) and the resin tower (30) are arranged in a unidirectional conveying way.
2. The integrated device for the treatment of organic heavy metal-containing wastewater according to claim 1, further comprising a sodium hydroxide backwash tank (40), wherein the sodium hydroxide backwash tank (40) is arranged at the tail part of the resin tower (30), and the sodium hydroxide backwash tank (40) conveys backwash liquid to the resin tower (30).
3. Integrated device for the treatment of organic heavy metal-containing wastewater according to claim 2, characterized in that the resin column (30) is also connected with a liquid outlet pipe (31).
4. An integrated device for treatment of organic heavy metal-containing wastewater according to claim 3, characterized in that a backwash pump (41) is provided between the resin tower (30) and the sodium hydroxide backwash tank (40), the resin tower (30) being further connected with a backwash liquid discharge pipe (42).
5. The integrated apparatus for treating organic heavy metal-containing wastewater according to claim 4, wherein a water outlet pump (32) is further provided between the resin tower (30) and the wastewater tank (10).
6. The integrated device for the treatment of organic heavy metal-containing wastewater according to any one of claims 1 to 5, characterized in that an electrolysis circulation pump (12) is further provided between the wastewater tank (10) and the BDD electrode electrolysis unit (20).
7. The integrated device for the treatment of organic heavy metal-containing wastewater according to claim 6, characterized in that the wastewater tank (10) is also connected with a temperature detector and a COD on-line detector (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323385872.8U CN221191752U (en) | 2023-12-12 | 2023-12-12 | Integrated device for treating organic heavy metal-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323385872.8U CN221191752U (en) | 2023-12-12 | 2023-12-12 | Integrated device for treating organic heavy metal-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221191752U true CN221191752U (en) | 2024-06-21 |
Family
ID=91519862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323385872.8U Active CN221191752U (en) | 2023-12-12 | 2023-12-12 | Integrated device for treating organic heavy metal-containing wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221191752U (en) |
-
2023
- 2023-12-12 CN CN202323385872.8U patent/CN221191752U/en active Active
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