CN217732838U - Heavy metal solution effluent treatment plant - Google Patents
Heavy metal solution effluent treatment plant Download PDFInfo
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- CN217732838U CN217732838U CN202221156209.3U CN202221156209U CN217732838U CN 217732838 U CN217732838 U CN 217732838U CN 202221156209 U CN202221156209 U CN 202221156209U CN 217732838 U CN217732838 U CN 217732838U
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- partition plate
- flocculation
- heavy metal
- zone
- tank
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 42
- 238000005189 flocculation Methods 0.000 claims abstract description 65
- 230000016615 flocculation Effects 0.000 claims abstract description 65
- 238000004062 sedimentation Methods 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 38
- 239000002351 wastewater Substances 0.000 claims abstract description 32
- 238000005273 aeration Methods 0.000 claims abstract description 19
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000746 purification Methods 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 37
- 230000000694 effects Effects 0.000 abstract description 12
- 239000008394 flocculating agent Substances 0.000 abstract description 12
- 238000001354 calcination Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 4
- 238000001556 precipitation Methods 0.000 abstract description 3
- 230000001376 precipitating effect Effects 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000003463 adsorbent Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000000903 blocking effect Effects 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
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000012528 membrane Substances 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
- 239000010877 mill tailing Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses a heavy metal solution wastewater treatment device, which relates to the field of wastewater treatment devices and comprises a sedimentation tank, a flocculation tank and a purification tank; the sedimentation tank is divided into a sedimentation zone, a transition zone, an aeration zone and a water outlet zone by a first partition plate, a second partition plate and a third partition plate which are arranged in sequence, and the first partition plate, the second partition plate and the third partition plate are arranged in a staggered manner; the flocculation basin comprises a first flocculation area and a second flocculation area. The utility model ensures the effective treatment effect of the heavy metal solution by the combined use of the sedimentation tank, the flocculation tank and the purification tank and multiple stages; through adopting the mode of natural sedimentation and precipitant precipitation with the heavy metal in the waste water in advance, can be convenient for subsequent drying or the recycle of calcination after precipitating a large amount of heavy metals, a small amount of heavy metals remain and continue to adopt the mode that the flocculating agent flocculation subsides, through the mode of handling step by step, can effectively guarantee the waste water treatment effect of heavy metal solution.
Description
Technical Field
The utility model relates to a waste water treatment device field, in particular to heavy metal solution waste water treatment device.
Background
With the continuous development of industry, the discharge amount of waste water is more and more, and the water environment pollution is more and more serious. Heavy metal is one of main pollutants of water body pollution, and the heavy metal refers to metal with specific gravity of more than 4 or 5, and about 45 kinds of metal, such as copper, nickel, lead, zinc, mercury, cadmium and the like. The heavy metal wastewater mainly comes from mine pit internal drainage, waste stone yard drench water, mill tailing drainage, nonferrous metal smelting plant dedusting drainage, nonferrous metal processing plant pickling water, electroplating plant plated part washing water, steel plant pickling drainage, and industries such as electrolysis, pesticide, medicine, tobacco, paint, pigment and the like. Heavy metals and compounds thereof can be accumulated and enriched in aquatic organisms and plant tissues, and finally cause serious harm to human health through the actions of biological accumulation, biological concentration, biological amplification and the like of drinking water and food chains. Therefore, efficient removal of heavy metals from wastewater is of paramount importance.
The existing heavy metal solution wastewater treatment usually adopts a chemical precipitation method, an adsorption method, an ion exchange method, a membrane separation method, an electrochemical method, a biological method and the like. However, the single treatment method often cannot achieve the expected effect, and meanwhile, heavy metals are expensive, so that the pollution problem is solved in the process of treating the wastewater, the effluent reaches the national discharge standard, and the recovery and utilization of heavy metal resources are also considered.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a heavy metal solution effluent treatment plant, solve current processing method effect not good and inconvenient heavy metal recycle scheduling problem.
In order to solve the technical problem, the technical scheme of the utility model is that:
a heavy metal solution wastewater treatment device comprises a sedimentation tank, a flocculation tank and a purification tank;
the sedimentation tank is divided into a sedimentation zone, a transition zone, an aeration zone and a water outlet zone by a first partition plate, a second partition plate and a third partition plate which are sequentially arranged, the first partition plate, the second partition plate and the third partition plate are arranged in a staggered manner, the first partition plate and the third partition plate are connected with the inner bottom of the sedimentation tank, the second partition plate is connected with the inner top of the sedimentation tank, a wastewater inlet is formed in the sedimentation tank above the sedimentation zone, and a plurality of aeration heads are arranged at the bottom of the aeration zone through pipelines;
the flocculation basin includes first flocculation area and second flocculation area, be linked together through the overflow mouth on upper portion between first flocculation area and the second flocculation area, be equipped with first agitating unit and second agitating unit in first flocculation area and the second flocculation area respectively.
Preferably, the bottom of the settling zone is provided with a sediment pump, and the outlet end of the sediment pump extends out of the settling tank and extends into the sediment tank outside the settling tank.
Preferably, the first stirring device comprises a first stirring motor, a first stirring shaft communicated with the power output end of the first stirring motor, and a first stirring paddle arranged on the first stirring shaft.
Preferably, the bottom of the first flocculation zone is in a pointed cone shape, and the bottom of the first stirring paddle is in an inclined shape attached to the pointed cone shape at the bottom in the first flocculation zone.
Preferably, the second stirring device comprises a second stirring motor, a second rotating shaft connected with the power output end of the second stirring motor, and a plate-type stirring paddle arranged on the second rotating shaft.
By adopting the technical scheme, the utility model ensures the effective treatment effect of the heavy metal solution by the combined use of the sedimentation tank, the flocculation tank and the purification tank and multiple stages; through the mode that adopts natural precipitation and precipitant to precipitate with the heavy metal in the waste water in advance, can be convenient for subsequent drying or the recycle of calcination behind a large amount of heavy metal precipitates, a small amount of heavy metal remains the mode that continues to adopt flocculating agent flocculation and subsides, through the mode of handling step by step, can effectively guarantee the waste water treatment effect of heavy metal solution.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1-a sedimentation tank, 2-a purification tank, 3-a first partition board, 4-a second partition board, 5-a third partition board, 6-a sedimentation zone, 7-a transition zone, 8-an aeration zone, 9-a water outlet zone, 10-a silt pump, 11-a silt tank, 12-a wastewater inlet, 13-an aeration head, 14-a first flocculation zone, 15-a second flocculation zone, 16-a first stirring motor, 17-a first stirring shaft, 18-a first stirring paddle, 19-a second stirring motor, 20-a second rotating shaft and 21-a plate type stirring paddle.
Detailed Description
The following description will further explain embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in figure 1, the heavy metal solution wastewater treatment device comprises a sedimentation tank 1, a flocculation tank and a purification tank 2;
continuing as shown in fig. 1, the sedimentation tank 1 is divided into a sedimentation zone 6, a transition zone 7, an aeration zone 8 and a water outlet zone 9 by a first partition plate 3, a second partition plate 4 and a third partition plate 5 which are sequentially arranged, the first partition plate 3, the second partition plate 4 and the third partition plate 5 are arranged in a staggered manner, the first partition plate 3 and the third partition plate 5 are connected with the bottom in the sedimentation tank 1, the second partition plate 4 is connected with the top in the sedimentation tank 1 so as to play a role of guiding wastewater, the sedimentation tank 1 above the sedimentation zone 6 is provided with a wastewater inlet 12, and the bottom of the aeration zone 8 is provided with a plurality of aeration heads 13 through pipelines;
continuing as shown in figure 1, the flocculation basin includes first flocculation area 14 and second flocculation area 15, is linked together through the overflow mouth on upper portion between first flocculation area 14 and the second flocculation area 15 to prevent that a large amount of solid subsides in the first flocculation area 14 from flowing into in the second flocculation area 15, be equipped with first agitating unit and second agitating unit in first flocculation area 14 and the second flocculation area 15 respectively, can carry out the intensive mixing of stirring to the solution in first flocculation area 14 and the second flocculation area 15, guarantee the abundant contact of waste water and flocculating agent, guarantee the flocculation effect.
When the heavy metal solution wastewater treatment device is used, heavy metal solution wastewater to be treated is injected into the sedimentation tank 1 through the wastewater inlet 12, the wastewater firstly enters the sedimentation zone 6, a proper amount of precipitants such as calcium hydroxide and sodium hydroxide can be added into the sedimentation zone 6 during use, precipitates can be obtained conveniently and quickly, due to the blocking of the first partition plate 3, supernate flows into the transition zone 7, and bottom precipitates are trapped in the sedimentation zone 6; the wastewater entering the transition zone 7 enters the aeration zone 8 under the guidance of the second partition plate 4; when the device is used, the adsorbent such as zeolite is added into the aeration zone 8, and the gas is sent into the aeration zone 8 through the aeration head 13 by the external aeration device, so that the wastewater in the aeration zone 8 can be uniformly stirred, the wastewater is ensured to be effectively contacted with the adsorbent, the adsorption effect of the adsorbent is enhanced, the adsorbent can effectively adsorb heavy metal ions in the wastewater, and the wastewater after being adsorbed by the aeration enters the flocculation tank 2 through the water outlet zone 9; during the use, add the flocculating agent in to first flocculation area 14, under first agitating unit's stirring drive, waste water and flocculating agent are sufficient in first flocculation area 14 and contact the flocculation and subside, and the waste water supernatant gets into second flocculation area 15 through the overflow mouth, and under second agitating unit's drive, remaining a small amount of flocculating agent and waste water continue to take place flocculation reaction in the waste water, and after flocculation reaction fully accomplished through first flocculation area 14 and second flocculation area 15, it can reach emission standard to get into purification tank 2 disinfection at last.
The utility model ensures the effective treatment effect of the heavy metal solution through the combination of the sedimentation tank 1, the flocculation tank and the purification tank 2 and the multistage combination; through adopting the mode of natural sedimentation and precipitant precipitation with the heavy metal in the waste water in advance, can be convenient for subsequent drying or the recycle of calcination after precipitating a large amount of heavy metals, a small amount of heavy metals remain and continue to adopt the mode that the flocculating agent flocculation subsides, through the mode of handling step by step, can effectively guarantee the waste water treatment effect of heavy metal solution.
In order to facilitate the quick discharge of silt in the settling zone 6, settling zone 6 bottom is equipped with silt pump 10, and the exit end of silt pump 10 stretches out sedimentation tank 1, extends in the silt jar 11 in the sedimentation tank 1 outside, is convenient for collect to the unity of heavy metal silt, prevents the secondary pollution to the surrounding environment, and the unified heavy metal silt that collects can adopt the mode preparation powder granule of drying or calcination, the recycle of the follow-up heavy metal of being convenient for.
Concretely, first agitating unit includes first agitator motor 16, the first (mixing) shaft 17 that is linked together with first agitator motor 16 power take off end and sets up the first stirring rake 18 on first (mixing) shaft 17 to can drive the first stirring rake 18 on the first (mixing) shaft 17 and rotate the stirring under first agitator motor 16's drive, guarantee the abundant mixing of flocculating agent and waste water in the first flocculation district 14.
In order to facilitate the flocculation and sedimentation, guarantee the abundant contact effect of flocculating agent and waste water, first flocculation area 14 bottom is the taper shape, be convenient for collect of subsiding, 18 bottoms of first stirring rake are the slope form of laminating with first flocculation area 14 bottom taper shape, guarantee to add the flocculating agent that gets into in the first flocculation area 14 if take place to subside and can be stirred effectively, prevent a large amount of flocculating agent because subside and cause the not good scheduling problem of waste water flocculation treatment effect in the bottom, when flocculation just begins, drive the abundant contact of flocculating agent and waste water through first agitating unit, wait the stirring of flocculation reaction later stage pause first agitating unit, guarantee that the precipitate has certain settling time, prevent that a large amount of muddy waste water from getting into subsequent second flocculation area 15, wait that the precipitate subsides after a period, most supernatant overflow gets into second flocculation area 15, guarantee the treatment effect of waste water.
Specifically, the second agitating unit includes second agitator motor 19, the second pivot 20 that is connected with 19 power take off ends of second agitator motor and sets up the board-like stirring rake 21 in second pivot 20, adopts board-like stirring rake 21 because the waste water in the second flocculation area 15 is clarified relatively, can not produce a large amount of subsides again, and board-like stirring rake 21 simple structure just is convenient for maintain.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and these embodiments are still within the scope of the invention.
Claims (5)
1. The utility model provides a heavy metal solution effluent treatment plant which characterized in that: comprises a sedimentation tank (1), a flocculation tank and a purification tank (2);
the sedimentation tank (1) is divided into a sedimentation zone (6), a transition zone (7), an aeration zone (8) and a water outlet zone (9) by a first partition plate (3), a second partition plate (4) and a third partition plate (5) which are sequentially arranged, the first partition plate (3), the second partition plate (4) and the third partition plate (5) are arranged in a staggered mode, the first partition plate (3) and the third partition plate (5) are connected with the inner bottom of the sedimentation tank (1), the second partition plate (4) is connected with the inner top of the sedimentation tank (1), a wastewater inlet (12) is formed in the sedimentation tank (1) above the sedimentation zone (6), and a plurality of aeration heads (13) are arranged at the bottom of the aeration zone (8) through pipelines;
the flocculation basin includes first flocculation area (14) and second flocculation area (15), be linked together through the overflow mouth on upper portion between first flocculation area (14) and the second flocculation area (15), be equipped with first agitating unit and second agitating unit in first flocculation area (14) and the second flocculation area (15) respectively.
2. The heavy metal solution wastewater treatment apparatus according to claim 1, wherein: the settling zone (6) bottom is equipped with silt pump (10), the exit end of silt pump (10) stretches out sedimentation tank (1), extends to in silt jar (11) in the sedimentation tank (1) outside.
3. The heavy metal solution wastewater treatment apparatus according to claim 1, wherein: the first stirring device comprises a first stirring motor (16), a first stirring shaft (17) communicated with the power output end of the first stirring motor (16), and a first stirring paddle (18) arranged on the first stirring shaft (17).
4. The heavy metal solution wastewater treatment device according to claim 3, characterized in that: the bottom of the first flocculation area (14) is in a pointed cone shape, and the bottom of the first stirring paddle (18) is in an inclined shape attached to the pointed cone shape at the bottom in the first flocculation area (14).
5. The heavy metal solution wastewater treatment apparatus according to claim 1, wherein: the second stirring device comprises a second stirring motor (19), a second rotating shaft (20) connected with the power output end of the second stirring motor (19) and a plate-type stirring paddle (21) arranged on the second rotating shaft (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221156209.3U CN217732838U (en) | 2022-05-13 | 2022-05-13 | Heavy metal solution effluent treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221156209.3U CN217732838U (en) | 2022-05-13 | 2022-05-13 | Heavy metal solution effluent treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217732838U true CN217732838U (en) | 2022-11-04 |
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ID=83836989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221156209.3U Expired - Fee Related CN217732838U (en) | 2022-05-13 | 2022-05-13 | Heavy metal solution effluent treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217732838U (en) |
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2022
- 2022-05-13 CN CN202221156209.3U patent/CN217732838U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |