CN214383735U - High sulfate acid wastewater neutralization and softening treatment device - Google Patents
High sulfate acid wastewater neutralization and softening treatment device Download PDFInfo
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- CN214383735U CN214383735U CN202023329186.5U CN202023329186U CN214383735U CN 214383735 U CN214383735 U CN 214383735U CN 202023329186 U CN202023329186 U CN 202023329186U CN 214383735 U CN214383735 U CN 214383735U
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Abstract
The utility model discloses a high sulfate radical acid waste water neutralization softening treatment device is used for carrying out neutralization softening with the acid waste water that contains high concentration sulfate radical ion, belongs to the environmental protection field. The utility model comprises a neutralization zone, a softening zone and a dehydrator for connecting the neutralization zone and the softening zone; the neutralization zone comprises a first neutralization tank, a second neutralization tank, a third neutralization tank and a fourth neutralization tank which are sequentially communicated, and the softening zone is used for adjusting the hardness of the wastewater; the dehydrator is used for transmitting the wastewater after acid-base neutralization in the neutralization zone to the softening zone; the softening zone comprises a vertical flow sedimentation tank, a softening flocculation tank, an inclined tube sedimentation tank and a water production tank which are sequentially communicated, and the softening zone is used for precipitating and softening calcium ions and the like in the wastewater after acid-base neutralization so as to reduce the hardness of the wastewater. The device has the advantages of relatively simple process and operation, small influence by field and environmental factors, low treatment cost, safety, reliability and good practical effect.
Description
Technical Field
The utility model relates to a high sulfate radical acid waste water neutralization and softening treatment device belongs to the environmental protection field.
Background
In recent years, with the increasing awareness of environmental protection, the problem of environmental pollution caused by industrial wastewater has attracted much attention. If the high sulfate acid wastewater is directly discharged into a water body, the environment can be greatly polluted and damaged. For example, the pH value of the water body is reduced, so that aquatic organisms die; causing soil acidification and increase of the mineralization degree of underground water. In addition, the high sulfate acid wastewater corrodes pipelines, which causes economic loss to enterprises.
Meanwhile, with the rapid development of economy, water resource protection and sustainable utilization of water resources become important guarantees for economic development. And through a series of treatments to the acid wastewater of high sulfate radical, can realize the recycle of the wastewater, achieve the goal of saving water resources.
The common treatment process of high sulfate acid wastewater at present comprises an electrolysis method, a biological treatment method, an ion exchange method and the like. Wherein, the electrolytic device occupies a larger area. The biological treatment device has larger occupied area and complex process. The ion exchange method has high treatment cost. There is a need for improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem existing in the prior high sulfate acid wastewater treatment process, and provides a high sulfate acid wastewater neutralization and softening treatment device which has relatively simple operation, low treatment cost and good treatment effect.
The purpose of the utility model is realized by the following technical scheme.
The utility model discloses a neutralization and softening treatment device for high sulfate radical acidic wastewater, which is used for neutralizing and softening the acidic wastewater containing high-concentration sulfate radical ions, and comprises a neutralization area, a softening area and a dehydrator connected with the neutralization area and the softening area; the neutralization zone comprises a first neutralization tank, a second neutralization tank, a third neutralization tank and a fourth neutralization tank which are sequentially communicated, and the softening zone is used for adjusting the hardness of the wastewater; the dehydrator is used for conveying the wastewater after acid-base neutralization in the neutralization zone to the softening zone; the softening zone comprises a vertical flow sedimentation tank, a softening flocculation tank, an inclined tube sedimentation tank and a water production tank which are sequentially communicated, and the softening zone is used for precipitating and softening calcium ions and the like in the wastewater after acid-base neutralization so as to reduce the hardness of the wastewater.
High sulfate radical acid waste water neutralization and softening processing apparatus still including set up in the fourth neutralization pond with middle pond between the hydroextractor, middle pond is including middle pond elevator pump, middle pond is used for buffering the waste water after acid-base neutralization, middle pond elevator pump is used for sending into the hydroextractor with waste water.
The first neutralization pond includes a first agitator and a first addition port for adding a basic neutralizing agent.
The second neutralization pond comprises a first pH meter, and the first pH meter is used for monitoring the pH value of the wastewater.
The third neutralization pond includes a second agitator and a second addition port for adding a basic neutralizing agent.
The fourth neutralization pond comprises a second pH meter, and the second pH meter is used for monitoring the pH value of the wastewater.
The dehydrator comprises a conditioning tank, the conditioning tank is used for adding a flocculating agent, and the dehydrator is used for preliminarily precipitating and softening calcium ions in the wastewater.
The vertical flow sedimentation tank comprises a water inlet guide cylinder and an umbrella-shaped baffle, the water inlet guide cylinder is connected to the dehydrator, and the umbrella-shaped baffle is arranged in the outlet direction of the water inlet guide cylinder; the vertical flow sedimentation tank is used for removing suspended matters in the wastewater through sedimentation.
The softening flocculation basin comprises a third stirrer and a third adding port, the third adding port is used for adding a softening agent, and the softening agent comprises a sodium carbonate solution and a flocculating agent.
The water producing pool comprises a water producing pool lifting pump, and the water producing pool lifting pump is used for being connected to a discharge port; or, the water producing pool lifting pump is used for being connected to an advanced treatment system, such as an ultrafiltration and reverse osmosis device, and after advanced treatment, the wastewater reuse is realized, and the water resource is saved.
Has the advantages that:
the utility model discloses a high sulfate radical acid waste water neutralization softening treatment device, it is relatively simple to adopt this high sulfate radical acid waste water neutralization softening treatment device operation, and it is little influenced by scene and environmental factor, and the treatment cost is not high, safe and reliable, and practical function is good.
Drawings
Fig. 1 is a schematic structural diagram of the neutralization and softening treatment device for high sulfate acid wastewater of the present invention.
In the figure: 1-a first neutralization tank, 2-a second neutralization tank, 3-a third neutralization tank, 4-a fourth neutralization tank, 5-a middle water tank, 6-a dehydrator, 7-a vertical flow sedimentation tank, 8-a softening flocculation tank, 9-an inclined tube sedimentation tank, 10-a water production tank, 11-a first stirrer, 12-a first adding port, 21-a first pH meter, 31-a second stirrer, 32-a second adding port, 41-a second pH meter, 51-a middle water tank lifting pump, 71-a water inlet guide cylinder, 72-an umbrella-shaped baffle, 81-a third stirrer, 82-a third adding port, 91-an inclined tube filler and 101-a water production lifting pump.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
As shown in fig. 1, the neutralization and softening treatment device for high sulfate radical acidic wastewater disclosed in this embodiment is used for neutralizing and softening acidic wastewater containing high concentration of sulfate radical ions, as shown in fig. 1: a dehydrator 6 which comprises a neutralization zone, a softening zone and a connecting part between the neutralization zone and the softening zone; the neutralization zone comprises a first neutralization tank 1, a second neutralization tank 2, a third neutralization tank 3, a fourth neutralization tank 4 and an intermediate water tank 5 which are sequentially communicated, and the softening zone is used for adjusting the hardness of the wastewater; the dehydrator 6 is used for conveying the wastewater after acid-base neutralization in the neutralization zone to the softening zone; the softening zone comprises a vertical flow sedimentation tank 7, a softening flocculation tank 8, an inclined tube sedimentation tank 9 and a water production tank 10 which are sequentially communicated, and the softening zone is used for precipitating and softening calcium ions and the like in the wastewater after acid and alkali neutralization so as to reduce the hardness of the wastewater.
Wherein, a first stirrer 11 and a first adding port 12 are arranged in the first neutralization tank 1; a first pH meter 21 is arranged in the second neutralization tank 2; a second stirrer 31 and a second adding port 32 are arranged in the third neutralizing tank 3; a second pH meter 41 is arranged in the fourth neutralization tank 4; the middle water tank 5 comprises a middle water tank lifting pump 51, and the middle water tank lifting pump 51 is used for pumping the wastewater to the dehydrator 6; the vertical flow sedimentation tank 7 is provided with a water inlet guide cylinder 71; the softening flocculation tank 8 is provided with a third stirrer 81 and a third adding port 82; an inclined tube filler 91 is arranged in the inclined tube sedimentation tank 9; the water production tank 10 includes a water production lift pump 101, and the water production lift pump 101 is used to discharge water into the advanced treatment system. The high sulfate acid wastewater neutralization and softening treatment device is relatively simple to operate, is slightly influenced by field and environmental factors, and has low treatment cost, safety, reliability and good practical effect.
A first stirrer 11 is arranged in the first neutralization tank 1, quicklime is added into the first neutralization tank 1 through a first adding port 12, and acid and alkali react rapidly under the stirring of the first stirrer 11 to generate calcium sulfate precipitate;
the second neutralization tank 2 is provided with a first pH meter 21 for monitoring the pH value of the wastewater, the set value is 7-9, and when the detection data is lower than the set value, the addition amount of the quicklime in the first neutralization tank 1 is increased;
a second stirrer 31 is arranged in the third neutralization tank 3, lime milk is added into the third neutralization tank 3 through a second adding port 32, acid and alkali react rapidly under the stirring of the second stirrer 31, and when the monitoring data of the first pH meter 21 on the second neutralization tank 2 is lower than a set value, the lime milk is added into the third neutralization tank 3 to neutralize redundant sulfuric acid;
a second pH meter 41 is arranged on the fourth neutralization tank 4, the pH value of the wastewater is monitored, the set value is 7-9, and when the detection data are lower than the set value, the addition amount of the lime milk in the third neutralization tank 3 is increased;
the middle water tank 5 is used for buffering the wastewater neutralized by acid and alkali, and the wastewater is pumped into the dehydrator 6 for dehydration through the middle water tank lifting pump 51;
the dehydrator 6 dehydrates the wastewater containing calcium carbonate precipitates, a flocculating agent is added into a conditioning tank of the dehydrator 6 to accelerate flocculation and precipitation of calcium sulfate, calcium sulfate sludge discharged after dehydration by the dehydrator 6 is transferred and treated by a sludge truck, and the wastewater discharged by the dehydrator 6 enters a vertical sedimentation tank 7;
the vertical flow sedimentation tank 7 is internally provided with a water inlet guide cylinder 71 and an umbrella-shaped baffle 72, wastewater is discharged into the vertical flow sedimentation tank 7 from top to bottom through the water inlet guide cylinder 71 arranged at the center of the vertical flow sedimentation tank 7, the umbrella-shaped baffle 72 is arranged in the outlet direction of the water inlet guide cylinder 71, and the wastewater passes through the umbrella-shaped baffle 72 and then is uniformly distributed in the vertical flow sedimentation tank 7 and then slowly rises along the whole section of the vertical flow sedimentation tank 7. The calcium sulfate suspended solids sink to the bottom of the vertical flow sedimentation tank 7 under the action of gravity, and clear water is discharged from an overflow weir around the upper end of the vertical flow sedimentation tank 7 and enters a softening flocculation tank 8;
the softening flocculation tank 8 is provided with a third stirrer 81 and a third adding port 82, a sodium carbonate solution and a flocculating agent are added into the softening flocculation tank 8 through the third adding port 82, the third stirrer 81 can accelerate the reaction rate, so that calcium sulfate in the wastewater reacts with the sodium carbonate to generate calcium carbonate with lower solubility, the calcium carbonate is flocculated and precipitated under the action of the flocculating agent, and the concentrations of calcium ions and sulfate radicals in the wastewater are further reduced;
the inclined tube sedimentation tank 9 is provided with an inclined tube filler 91, calcium carbonate is precipitated in the inclined tube sedimentation tank 9, and clear water on the upper layer of the inclined tube sedimentation tank 9 flows into the water production tank 10;
the water production tank 10 is used for storing the neutralized and softened wastewater, and the water production tank lift pump 101 can discharge the water into a discharge port for discharge. Or the produced water lifting pump 101 can discharge water into an advanced treatment system, such as an ultrafiltration and reverse osmosis device, and after advanced treatment, the wastewater can be recycled, so that the aim of saving water resources is fulfilled.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (10)
1. The utility model provides a high sulfate radical acid waste water neutralization softening treatment device for carry out neutralization softening with the acid waste water that contains high concentration sulfate radical ion, its characterized in that: comprises a neutralization zone, a softening zone and a dehydrator (6) connecting the neutralization zone and the softening zone; the neutralization zone comprises a first neutralization tank (1), a second neutralization tank (2), a third neutralization tank (3) and a fourth neutralization tank (4) which are sequentially communicated, and the softening zone is used for adjusting the hardness of the wastewater; the dehydrator (6) is used for conveying the wastewater after acid-base neutralization in the neutralization zone to the softening zone; the softening zone comprises a vertical flow sedimentation tank (7), a softening flocculation tank (8), an inclined tube sedimentation tank (9) and a water production tank (10) which are sequentially communicated, and the softening zone is used for precipitating and softening calcium ions in the wastewater after acid-base neutralization to reduce the hardness of the wastewater.
2. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: high sulfate radical acid wastewater neutralization and softening treatment device still including set up in fourth neutralization pond (4) with middle pond (5) between hydroextractor (6), middle pond (5) are including middle pond elevator pump (51), middle pond (5) are used for buffering the waste water after the acid-base neutralization, middle pond elevator pump (51) are used for sending waste water into hydroextractor (6).
3. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the first neutralization tank (1) comprises a first stirrer (11) and a first adding port (12), and the first adding port (12) is used for adding a basic neutralizing agent.
4. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the second neutralization tank (2) comprises a first pH meter (21), and the first pH meter (21) is used for monitoring the pH value of the wastewater.
5. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the third neutralization tank (3) comprises a second stirrer (31) and a second adding port (32), and the second adding port (32) is used for adding a basic neutralizing agent.
6. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the fourth neutralization tank (4) comprises a second pH meter (41), and the second pH meter (41) is used for monitoring the pH value of the wastewater.
7. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the dehydrator (6) comprises a conditioning tank, the conditioning tank is used for adding a flocculating agent, and the dehydrator is used for preliminarily precipitating and softening calcium ions in the wastewater.
8. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 7, characterized in that: the vertical flow sedimentation tank (7) comprises a water inlet guide cylinder (71) and an umbrella-shaped baffle (72), the water inlet guide cylinder (71) is connected to the dehydrator (6), and the umbrella-shaped baffle (72) is arranged in the outlet direction of the water inlet guide cylinder (71); the vertical flow sedimentation tank (7) is used for removing suspended matters in the wastewater through sedimentation.
9. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the softening flocculation tank (8) comprises a third stirrer (81) and a third adding port (82), wherein the third adding port (82) is used for adding a softening agent, and the softening agent comprises a sodium carbonate solution and a flocculating agent.
10. The neutralization and softening treatment device for the high sulfate acid wastewater according to claim 1, characterized in that: the water producing tank (10) comprises a water producing lift pump (101), and the water producing lift pump (101) is connected to a discharge port; or, the produced water lift pump (101) is connected to an advanced treatment system and is subjected to advanced treatment, so that the wastewater is recycled, and the water resource is saved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023329186.5U CN214383735U (en) | 2020-12-30 | 2020-12-30 | High sulfate acid wastewater neutralization and softening treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023329186.5U CN214383735U (en) | 2020-12-30 | 2020-12-30 | High sulfate acid wastewater neutralization and softening treatment device |
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| CN214383735U true CN214383735U (en) | 2021-10-12 |
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| CN202023329186.5U Active CN214383735U (en) | 2020-12-30 | 2020-12-30 | High sulfate acid wastewater neutralization and softening treatment device |
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