CN213294952U - Wastewater pretreatment device - Google Patents
Wastewater pretreatment device Download PDFInfo
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- CN213294952U CN213294952U CN202021130422.8U CN202021130422U CN213294952U CN 213294952 U CN213294952 U CN 213294952U CN 202021130422 U CN202021130422 U CN 202021130422U CN 213294952 U CN213294952 U CN 213294952U
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Abstract
The utility model belongs to the technical field of the water treatment technique and specifically relates to a wastewater pretreatment device is related to, include: the device comprises a raw water tank, a liquid storage tank and a liquid outlet pipe, wherein the side end of the raw water tank is provided with an alkali liquor inlet, the top end of the raw water tank is provided with an opening, and a pouring funnel is arranged at the opening; the solid-liquid separator is communicated with the bottom end of the raw water tank through a first pipeline, and a first water pump is arranged on the first pipeline; the reverse osmosis device is communicated with the solid-liquid separator through a second pipeline, and a second water pump is arranged on the second pipeline; the device comprises a reverse osmosis device, a homogeneous membrane permeator communicated with the reverse osmosis device through a third pipeline, a third water pump is arranged on the third pipeline, and the water outlet end of the homogeneous membrane permeator is communicated with a buffer tank. And a stirrer is arranged on the bottom surface inside the tank body of the raw water tank. The utility model discloses get rid of the calcium magnesium ion in the waste water effectively, reduce waste water hardness promptly, and it is higher to remove hard level, reduces the harm to bipolar membrane when convenient follow-up further processing waste water.
Description
Technical Field
The utility model belongs to the technical field of the water treatment technique and specifically relates to a wastewater pretreatment device is related to.
Background
In modern production, the bipolar membrane electrodialysis method is usually an economic and reliable means for desalting wastewater, however, due to the excessively high hardness of wastewater, when the wastewater circulates through the bipolar membrane, damage is inevitably caused to the bipolar membrane, and generally, if the softened wastewater is circulated for desalting, the bipolar membrane needs to be replaced once every circulation, so that the economic benefit is poor.
Therefore, in wastewater treatment processes, wastewater is usually pretreated, and the purpose of pretreatment is to reduce the hardness of wastewater. The traditional pretreatment mode is to simply add 'double alkali', namely sodium carbonate and sodium hydroxide, into the wastewater to remove hardness, and the mode usually has poor hardness removal effect and needs to spend a large amount of medicaments.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a wastewater pretreatment device, can effectively reduce waste water hardness to reduce the influence to bipolar membrane in the subsequent handling.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
a wastewater pretreatment device comprising:
the device comprises a raw water tank, a liquid storage tank and a liquid outlet pipe, wherein the side end of the raw water tank is provided with an alkali liquor inlet, the top end of the raw water tank is provided with an opening, and a pouring funnel is arranged at the opening;
the solid-liquid separator is communicated with the bottom end of the raw water tank through a first pipeline, and a first water pump is arranged on the first pipeline;
the reverse osmosis device is communicated with the solid-liquid separator through a second pipeline, and a second water pump is arranged on the second pipeline;
the device comprises a reverse osmosis device, a homogeneous membrane permeator communicated with the reverse osmosis device through a third pipeline, a third water pump is arranged on the third pipeline, and the water outlet end of the homogeneous membrane permeator is communicated with a buffer tank.
Further, the solid-liquid separator comprises a micro-filter and a press, one side of the micro-filter is communicated with the raw water tank, the other side of the micro-filter is provided with a liquid phase discharge port and a solid phase discharge port, the liquid phase discharge port is communicated with the reverse osmosis device, and the solid phase discharge port is communicated with the press.
Furthermore, the pressing machine comprises a pressing groove with an opening at the top end and a pressing plate driven by external power to move up and down, a sealing sleeve is sleeved on the outer ring of the pressing plate and matched with the inner diameter of the pressing groove, and a feeding hole is formed in the bottom of the side edge of the pressing groove and communicated with the solid phase discharge port.
Further, the reverse osmosis device includes concentrate chamber, reverse osmosis membrane and clear solution chamber, the concentrate chamber with be equipped with the fourth pipeline between the former water pitcher, be equipped with the fourth water pump on the fourth pipeline, the clear solution chamber pass through the third pipeline with homogeneous phase membrane permeator communicates with each other.
Further, a stirrer is arranged on the bottom surface inside the tank body of the raw water tank.
To sum up, adopt the utility model discloses a technical means compares the advantage that has in traditional technical means and lies in:
1) the utility model discloses get rid of the calcium magnesium ion in the waste water effectively, reduce waste water hardness promptly, and it is higher to remove hard level, reduces the harm to bipolar membrane when convenient follow-up further processing waste water.
2) The utility model discloses also can be with the higher waste water recycle again of hardness, resource utilization is high, simultaneously, the utility model discloses also can be with useless collection admittedly, handle useless admittedly fast, realize 0 emission.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Wherein: 1. the system comprises a raw water tank, 11 parts of an alkali liquor input port, 12 parts of a pouring funnel, 13 parts of a stirrer, 14 parts of a first pipeline, 15 parts of a first water pump, 2 parts of a solid-liquid separator, 21 parts of a micro-filter, 22 parts of a press, 23 parts of a second pipeline, 24 parts of a second water pump, 25 parts of a feed hole, 26 parts of a pressing plate, 27 parts of a sealing sleeve, 28 parts of a solid-phase discharge port, 29 parts of a liquid-phase discharge port, 3 parts of a reverse osmosis device, 31 parts of a fourth water pump, 32 parts of a fourth pipeline, 33 parts of a third pipeline, 34 parts of a third water pump, 35 parts of a concentrated liquid cavity, 36 parts of a clear liquid cavity, 37 parts of a reverse osmosis membrane, 4 parts of a homogeneous membrane permeator.
Detailed Description
In the following, the preferred embodiments of the present invention will be explained, and various changes and modifications can be made by workers without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
The invention will be further described with reference to the following description drawings:
a wastewater pretreatment device comprising: the device comprises a raw water tank 1, wherein the upper end of the side edge of the raw water tank 1 is provided with an alkali liquor input port 11, the top end of the raw water tank is opened, and a pouring funnel 12 is arranged at the opening; the solid-liquid separator 2 is communicated with the bottom end of the raw water tank 1 through a first pipeline 14, and a first water pump 15 is arranged on the first pipeline 14; the reverse osmosis device 3 is communicated with the solid-liquid separator 2 through a second pipeline 23, and a second water pump 24 is arranged on the second pipeline 23; the homogeneous membrane permeator 4 is communicated with the reverse osmosis device 3 through a third pipeline 33, a third water pump 34 is arranged on the third pipeline 33, and a water outlet end 41 of the homogeneous membrane permeator 4 is communicated with the buffer tank 5. And a stirrer 13 is arranged on the bottom surface inside the tank body of the raw water tank 1.
In the above-mentioned wastewater pretreatment apparatus, the raw water tank 1 is used for storing and storing the waste liquid, and a small amount of sodium hydroxide solution is input through the alkali input port 11 to adjust the pH value of the waste liquid in the raw water tank 1. The stirrer 13 prevents the residue in the wastewater in the raw water tank 1 from precipitating to block the raw water tank 1. The calcium-magnesium chelating agent is poured from the pouring funnel 12 to grab the magnesium ions and the calcium ions in the raw water tank 1. And then carrying out solid-liquid separation in the solid-liquid separator 2, after the separation is finished, the hardness of the liquid phase after reverse osmosis treatment is basically consistent with that after the liquid phase is treated by a conventional double-alkali method, and discharging the liquid phase into the buffer tank 5 after further wastewater hardness removal is continuously carried out through a homogeneous membrane.
The solid-liquid separator 2 comprises a microfilter 21 and a pressing machine 22, one side of the microfilter 21 is communicated with the raw water tank 1, the other side of the microfilter 21 is provided with a liquid phase discharge port 29 and a solid phase discharge port 28, the liquid phase discharge port 29 is communicated with the reverse osmosis device 3, and the solid phase discharge port 28 is communicated with the pressing machine 22.
The pressing machine 22 comprises a pressing groove with an opening at the top end and a pressing plate 26 driven by external power to move up and down, a sealing sleeve 27 is sleeved on the outer ring of the pressing plate 26, the sealing sleeve 27 is matched with the inner diameter of the pressing groove, a feeding hole 25 is formed in the bottom of the side edge of the pressing groove, and the feeding hole 25 is communicated with the solid phase discharge port 28.
The micro-filter 21 can filter out ions with the diameter of more than 10 microns in the waste liquid, so that the subsequent reverse osmosis treatment is convenient. The press 22 presses the solid waste into a mud cake for convenient transportation and storage. The sealing sleeve 27 of the outer ring of the pressing plate 26 can prevent solid waste or filtrate seepage in the pressing process.
The reverse osmosis device 3 comprises a concentrated solution cavity 35, a reverse osmosis membrane 37 and a clear solution cavity 36, the concentrated solution cavity 35 is provided with a fourth pipeline 32 between the raw water tank 1, a fourth water pump 31 is arranged on the fourth pipeline 32, and the clear solution cavity 36 is communicated with the homogeneous membrane permeator 4 through a third pipeline 33.
One end of the reverse osmosis device 3 is a concentrated solution cavity 35, and the other end is a clear solution cavity 36, the clear solution can enter the homogeneous membrane permeation device for continuous treatment, and the concentrated solution flows back to the raw water tank 1 along with the fourth pipeline 3232 for continuous circulation treatment.
Claims (5)
1. A wastewater pretreatment device, comprising:
the device comprises a raw water tank, a liquid storage tank and a liquid outlet pipe, wherein the side end of the raw water tank is provided with an alkali liquor inlet, the top end of the raw water tank is provided with an opening, and a pouring funnel is arranged at the opening;
the solid-liquid separator is communicated with the bottom end of the raw water tank through a first pipeline, and a first water pump is arranged on the first pipeline;
the reverse osmosis device is communicated with the solid-liquid separator through a second pipeline, and a second water pump is arranged on the second pipeline;
the device comprises a reverse osmosis device, a homogeneous membrane permeator communicated with the reverse osmosis device through a third pipeline, a third water pump is arranged on the third pipeline, and the water outlet end of the homogeneous membrane permeator is communicated with a buffer tank.
2. A wastewater pretreatment device according to claim 1, characterized in that: the solid-liquid separator comprises a microfilter and a press, one side of the microfilter is communicated with the raw water tank, the other side of the microfilter is provided with a liquid phase discharge port and a solid phase discharge port, the liquid phase discharge port is communicated with the reverse osmosis device, and the solid phase discharge port is communicated with the press.
3. A wastewater pretreatment device according to claim 2, characterized in that: the pressing machine comprises a pressing groove with an opening at the top end and a pressing plate driven by external power to move up and down, a sealing sleeve is sleeved on the outer ring of the pressing plate and matched with the inner diameter of the pressing groove, and a feeding hole is formed in the bottom of the side edge of the pressing groove and communicated with the solid phase discharge port.
4. A wastewater pretreatment device according to claim 1, characterized in that: the reverse osmosis device comprises a concentrated liquid cavity, a reverse osmosis membrane and a clear liquid cavity, a fourth pipeline is arranged between the concentrated liquid cavity and the raw water tank, a fourth water pump is arranged on the fourth pipeline, and the clear liquid cavity is communicated with the homogeneous membrane permeator through a third pipeline.
5. A wastewater pretreatment device according to claim 1, characterized in that: and a stirrer is arranged on the bottom surface inside the tank body of the raw water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021130422.8U CN213294952U (en) | 2020-06-18 | 2020-06-18 | Wastewater pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021130422.8U CN213294952U (en) | 2020-06-18 | 2020-06-18 | Wastewater pretreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213294952U true CN213294952U (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021130422.8U Active CN213294952U (en) | 2020-06-18 | 2020-06-18 | Wastewater pretreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213294952U (en) |
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2020
- 2020-06-18 CN CN202021130422.8U patent/CN213294952U/en active Active
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