CN214735236U - Papermaking wastewater treatment system - Google Patents
Papermaking wastewater treatment system Download PDFInfo
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- CN214735236U CN214735236U CN202120859788.7U CN202120859788U CN214735236U CN 214735236 U CN214735236 U CN 214735236U CN 202120859788 U CN202120859788 U CN 202120859788U CN 214735236 U CN214735236 U CN 214735236U
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Abstract
The utility model discloses a papermaking effluent disposal system, include the waste water collecting pit, regulation aeration tank, electric flocculation air supporting device, biological contact oxidation pond, sedimentation tank and the retrieval and utilization pond that communicate in proper order through the pipeline, electric flocculation air supporting device with the sedimentation tank all communicates through pipeline and sludge concentration device. The utility model discloses a whole set of papermaking effluent disposal system, the serialization of whole system is better, can effectively degrade the aquatic gluing material, send the look material, gets rid of the aquatic suspended solid, and sewage treatment efficiency is high, and COD in the waste water can reach the mark retrieval and utilization, has reduced manufacturing cost, and the water economy resource realizes the zero release of sewage.
Description
Technical Field
The utility model relates to a effluent disposal system field especially relates to a papermaking effluent disposal system.
Background
The water consumption of the paper making industry in China is large, and the method is one of the main industries polluting water environment. The problem of environmental pollution increasingly becomes a bottleneck restricting the development of paper making enterprises, so a novel water resource utilization mode is established, an effective wastewater treatment and recycling comprehensive treatment technology is explored, zero discharge of sewage is realized, and the method is very important for the development of the paper making enterprises in China. With the adjustment of the raw material structure of the paper industry, the recycling of the waste paper is more and more emphasized. In the process of pulping and papermaking by recycling waste paper, various adhesives, coating adhesives, ink binders and other impurities introduced in the production, processing and use processes of paper and natural resins in wood are released into a pulp water system in a large quantity, and the substances can form stickies to be deposited on a forming net, a pressing part, a drying cylinder surface and a paper surface in the production process, so that the runnability and the quality of paper machines are greatly influenced, the size, the shape, the viscosity and other characteristics of the stickies entering a waste paper circulating system become various, the problem of the stickies in the waste paper recycling system is increasingly serious, the treatment and recycling of papermaking waste water are also greatly influenced, especially the stickies in the waste water can cause equipment blockage, and the problem caused by the stickies needs to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a papermaking effluent disposal system, the problem of influence waste water treatment retrieval and utilization such as gluing thing, the color substance that causes, suspended solid in the solution waste water.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a papermaking effluent disposal system, include the waste water collecting pit, regulation aeration tank, electric flocculation air supporting device, biological contact oxidation pond, sedimentation tank and the retrieval and utilization pond that communicate in proper order through the pipeline, electric flocculation air supporting device with the sedimentation tank all communicates through pipeline and sludge concentration device.
Furthermore, an impeller rotating aeration device is arranged in the adjusting aeration tank.
Still further, an electrolytic tank is arranged at one end of the electrocoagulation-flotation device, an electrode plate is arranged in the electrolytic tank and connected with a current regulator outside the electrolytic tank through a lead, a scum scraper is arranged at the top of the electrocoagulation-flotation device, and scum scraped by the scum scraper enters the sludge concentration device through a pipeline.
Still further, an air pipe is laid at the bottom of the biological contact oxidation tank, one end of the air pipe extends out of the biological contact oxidation tank and then is connected with a fan, a plurality of air outlets are uniformly distributed on the air pipe, and activated sludge filler is arranged above the air outlets.
And furthermore, the bottom of the sedimentation tank is communicated with the sludge concentration device through a pipeline, and the upper part of the sedimentation tank is communicated with the reuse water tank through a pipeline.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model relates to a papermaking wastewater treatment system, which comprises a wastewater collection tank, an adjusting aeration tank, an electrocoagulation-floatation device, a biological contact oxidation tank, a sedimentation tank and a reuse water tank which are sequentially communicated through pipelines, wherein the electrocoagulation-floatation device and the sedimentation tank are communicated with a sludge concentration device through pipelines; the utility model discloses a whole set of papermaking effluent disposal system, the serialization of whole system is better, can effectively degrade the aquatic gluing material, send the look material, gets rid of the aquatic suspended solid, and sewage treatment efficiency is high, and COD in the waste water can reach the mark retrieval and utilization, has reduced manufacturing cost, and the water economy resource realizes the zero release of sewage.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic structural view of a papermaking wastewater treatment system according to the present invention;
description of reference numerals: 1. a wastewater collection tank; 2. adjusting an aeration tank; 3. an electrocoagulation-floatation device; 4. a biological contact oxidation pond; 5. a sedimentation tank; 6. a reuse water tank; 7. a sludge concentration device; 8. the impeller rotates the aeration device; 9. an electrolytic tank; 10. a scum scraper; 11. an air tube; 1101. an air outlet; 12. and (3) active sludge filler.
Detailed Description
As shown in fig. 1, a papermaking wastewater treatment system comprises a wastewater collection tank 1, a regulating aeration tank 2, an electrocoagulation-flotation device 3, a biological contact oxidation tank 4, a sedimentation tank 5 and a reuse water tank 6 which are sequentially communicated through a pipeline, wherein the electrocoagulation-flotation device 3 and the sedimentation tank 5 are both communicated with a sludge concentration device 7 through pipelines; the utility model discloses a whole set of papermaking effluent disposal system, the serialization of whole system is better, can effectively degrade the aquatic gluing material, send the look material, gets rid of the aquatic suspended solid, and sewage treatment efficiency is high, and COD in the waste water can reach the mark retrieval and utilization, has reduced manufacturing cost, and the water economy resource realizes the zero release of sewage.
Specifically, an impeller rotating aeration device 8 is arranged in the adjusting aeration tank 2; the adjusting aeration tank 2 stabilizes the water quality and quantity on the one hand, and on the other hand, rotates the pre-aeration through the impeller to prevent suspended solids from settling.
An electrolytic tank 9 is arranged at one end of the electrocoagulation-flotation device 3, an electrode plate is arranged inside the electrolytic tank 9, the electrode plate is connected with a current regulator outside the electrolytic tank 9 through a lead, a scum scraper 10 is arranged at the top of the electrocoagulation-flotation device 3, and scum scraped by the scum scraper 10 enters the sludge concentration device 7 through a pipeline; the electric flocculation floatation device 3 removes colloidal impurities and suspended impurities in the wastewater by a method of separating by aeration floatation through the electrolysis of the electrolytic tank 9, and improves the biodegradability of the wastewater.
An air pipe 11 is laid at the bottom of the biological contact oxidation tank 4, one end of the air pipe 11 extends out of the biological contact oxidation tank 4 and then is connected with a fan, a plurality of air outlet holes 1101 are uniformly distributed on the air pipe 11, and activated sludge fillers 12 are arranged above the air outlet holes 1101; specifically, the activated sludge filler 12 adopts soft filler, semi-soft filler, fiber bundle group and filler, elastic three-dimensional filler and suspension seasoning; fan accessible trachea 11 is to conveying gas in the biological contact oxidation pond 4, makes the waste water continuous motion in the biological contact oxidation pond 4, makes waste water and the interior activated sludge filler 12 of pond touch each other, makes activated sludge and waste water fully contact reaction, increases the contact adsorption opportunity between activated sludge and the sewage, effectively improves the degradation ability, further gets rid of aquatic and causes look material, aquatic suspended solid, improves the clearance of sewage organic matter.
The bottom of the sedimentation tank 5 is communicated with the sludge concentration device 7 through a pipeline, and the upper part of the sedimentation tank 5 is communicated with the reuse water tank 6 through a pipeline; the sludge concentration device 7 is used for collecting and treating scum and sludge separated from the sedimentation tank 5 and the electric flocculation air flotation device 3.
The utility model discloses a use as follows:
step one, waste water from a workshop enters a waste water collecting tank 1 through a pipeline; step two, the wastewater in the wastewater collection tank 1 enters the adjusting aeration tank 2 through a pipeline, an impeller in the adjusting aeration tank 2 rotates the aeration device 8 to work, and pre-aeration is carried out through rotation of the impeller to prevent suspended matters from settling; step three, the wastewater after the pre-aeration treatment enters an electric flocculation air flotation device 3 through a pipeline, a soluble anode (Al, Fe) is adopted in an electrolytic tank 9 as a polar plate, the anode is corroded under the action of direct current to generate Al, Fe plasma, and the Al, Fe plasma is developed into various hydroxyl complexes, polynuclear hydroxyl complexes or hydroxides through a series of hydrolysis, polymerization and ferrous oxidation processes, so that colloidal impurities and suspended impurities in the wastewater are separated through aeration air flotation, the colloidal impurities, the suspended impurities and the like are scraped by a scum scraper 10, and the scraped scum enters a sludge concentration device 7 through a pipeline for dehydration treatment; step four, the wastewater from which the scum is removed enters a biological contact oxidation tank 4 through a pipeline, a fan conveys gas into the biological contact oxidation tank 4 through an air pipe 11, so that the wastewater in the biological contact oxidation tank 4 continuously moves, the wastewater and an activated sludge filler 12 in the tank are mutually contacted, the activated sludge filler 12 is fully contacted and reacted with the wastewater, and further, coloring substances and suspended matters in the water are removed; and step five, the water from the biological contact oxidation tank 4 enters a sedimentation tank 5 for mud-water separation, the sludge at the lower part of the sedimentation tank 5 enters a sludge concentration device 7 for dehydration treatment, and the clear liquid at the upper part of the sedimentation tank 5 enters a reuse water tank 6 for production and reuse, thereby completing the treatment process of the papermaking wastewater.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (5)
1. A papermaking wastewater treatment system is characterized in that: the device comprises a wastewater collecting tank, an adjusting aeration tank, an electric flocculation air flotation device, a biological contact oxidation tank, a sedimentation tank and a reuse water tank which are sequentially communicated through pipelines, wherein the electric flocculation air flotation device and the sedimentation tank are communicated with a sludge concentration device through pipelines.
2. The papermaking wastewater treatment system according to claim 1, characterized in that: and an impeller rotating aeration device is arranged in the adjusting aeration tank.
3. The papermaking wastewater treatment system according to claim 1, characterized in that: an electrolytic tank is arranged at one end of the electrocoagulation-flotation device, an electrode plate is arranged in the electrolytic tank and connected with a current regulator outside the electrolytic tank through a lead, a scum scraper is arranged at the top of the electrocoagulation-flotation device, and scum scraped by the scum scraper enters the sludge concentration device through a pipeline.
4. The papermaking wastewater treatment system according to claim 1, characterized in that: an air pipe is laid at the bottom of the biological contact oxidation tank, one end of the air pipe extends out of the biological contact oxidation tank and then is connected with a fan, a plurality of air outlets are uniformly distributed on the air pipe, and activated sludge filler is arranged above the air outlets.
5. The papermaking wastewater treatment system according to claim 1, characterized in that: the bottom of the sedimentation tank is communicated with the sludge concentration device through a pipeline, and the upper part of the sedimentation tank is communicated with the reuse water tank through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859788.7U CN214735236U (en) | 2021-04-25 | 2021-04-25 | Papermaking wastewater treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120859788.7U CN214735236U (en) | 2021-04-25 | 2021-04-25 | Papermaking wastewater treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214735236U true CN214735236U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120859788.7U Active CN214735236U (en) | 2021-04-25 | 2021-04-25 | Papermaking wastewater treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214735236U (en) |
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2021
- 2021-04-25 CN CN202120859788.7U patent/CN214735236U/en active Active
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