CN217516799U - Treatment device for papermaking industrial wastewater - Google Patents
Treatment device for papermaking industrial wastewater Download PDFInfo
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- CN217516799U CN217516799U CN202220795751.7U CN202220795751U CN217516799U CN 217516799 U CN217516799 U CN 217516799U CN 202220795751 U CN202220795751 U CN 202220795751U CN 217516799 U CN217516799 U CN 217516799U
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- water
- precision filter
- paper pulp
- tank
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- 239000010842 industrial wastewater Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 36
- 239000002351 wastewater Substances 0.000 claims abstract description 36
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 239000008213 purified water Substances 0.000 claims abstract description 13
- 239000010893 paper waste Substances 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000002101 nanobubble Substances 0.000 claims abstract description 5
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000011001 backwashing Methods 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 2
- 238000005273 aeration Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 5
- 238000004537 pulping Methods 0.000 description 3
- 230000005791 algae growth Effects 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model relates to a processing apparatus of paper industry waste water, including waste paper pulp collecting pit, micro-electrolysis pond, micro-nano aeration machine, high-precision filter and pulp tank, the delivery port of waste water pulp collecting pit is equipped with the grid, and waste water gets into micro-electrolysis pond after the great impurity is got rid of to the grid, micro-nano aeration machine is connected to micro-electrolysis pond, and micro-nano aeration machine sends the micro-nano bubble that produces into micro-electrolysis pond, the internal circulation pipeline is connected to micro-electrolysis pond, and partial waste water gets into micro-electrolysis pond again through the internal circulation pipeline under the effect of internal circulation pump, and the paper pulp of detached state and water mixed liquid get into high-precision filter under the effect of pump and deposit the filtration, be equipped with the active filter material of multilayer AFM in the high-precision filter. The utility model does not need to add a demulsifier, and adopts an electrolytic micro-nano aeration system to demulsify the wastewater, thereby greatly reducing the treatment cost; the mixed liquid of the paper pulp and the water in the separation state enters a high-precision filter for precipitation and separation, and both the purified water and the high-concentration paper pulp are recovered.
Description
Technical Field
The utility model relates to a waste water treatment technical field, concretely relates to processing apparatus of papermaking industry waste water.
Background
The paper making industry is a traditional water consumer and is one of the important pollution sources causing water pollution. With the development of economy, enterprises are increasingly confronted with the problems of water resource shortage and raw material shortage, and on the other hand, water pollution is more and more serious. The waste water of paper industry mainly is the pulping waste water and paper machine white water produced in the pulping and paper making process, the paper machine white water is generally recycled in the production and is not discharged, the pulping waste water contains organic pollutants, the organic pollutants can not be directly discharged, the waste water needs to flow into a sewage treatment plant for treatment, the load of the sewage treatment plant is very large, namely, the cost of sewage treatment is very high, high-concentration paper pulp in the waste water can not be collected, the cost of the paper pulp is very high, and the resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a device for treating the wastewater in the paper making industry, which does not need to add a demulsifier and adopts an electrolytic micro-nano aeration system to perform demulsification on the wastewater, thereby greatly reducing the treatment cost; separating paper pulp from water, enabling the separated paper pulp and water mixed liquor to enter a high-precision filter, arranging an AFM active filter material in the high-precision filter, separating out purified water, carrying out backwashing desorption when the filtering effect is poor, desorbing high-concentration paper pulp, wherein the AFM active filter material has good filtering capacity after long-term repeated use, can prevent bacterial reproduction and algae growth, and can block more than 95% of micro impurities with the particle size of more than 1 micron; the sewage treatment system of the paper mill has low load, simple treatment and low treatment cost, and both purified water and high-concentration paper pulp are recovered, thereby saving resources.
The purpose of the utility model is realized like this:
the utility model provides a processing apparatus of papermaking industry waste water, includes waste paper pulp collecting pit, little electrolytic bath, micro-nano aeration machine, high-precision filter and pulp tank, the delivery port of waste water pulp collecting pit is equipped with the grid, and waste water gets into little electrolytic bath after getting rid of great impurity through the grid, little electrolytic bath is connected to little electrolytic bath, and micro-nano aeration machine sends the micro-nano bubble that produces into little electrolytic bath, little electrolytic bath connects the inner loop pipeline, and partial waste water gets into little electrolytic bath again through the inner loop pipeline under the effect of inner loop pump, and the paper pulp of separate state and water mixed liquid get into high-precision filter under the effect of suction pump and deposit the filtration, be equipped with the active filter material of multilayer AFM in the high-precision filter.
Preferably, the top of the high-precision filter is provided with a filtering water inlet, the bottom of the high-precision filter is provided with a filtering water outlet, the side wall of the high-precision filter is provided with a backwashing water outlet, and the backwashing water outlet is arranged above the AFM active filter material.
Preferably, the AFM active filter material is provided with a plurality of layers from top to bottom, and the particle size of the filter material is gradually increased.
Preferably, part of the filtered purified water flows into a purified water pool and is recycled; the other part is used as make-up water to flow into the micro-electrolysis cell again.
Preferably, during backwashing, the filter water outlet is used as a backwashing water inlet, the AFM active filter material is desorbed, and the desorbed high-concentration paper pulp enters the paper pulp tank from the backwashing water outlet.
Preferably, the high precision filter is backwashed when the pressure difference between the inlet and outlet pipes of the high precision filter reaches 0.5bar or 1 week is passed.
The beneficial effects of the utility model are that:
a demulsifier is not required to be added, and the electrolytic micro-nano aeration system is adopted to demulsify the wastewater, so that the treatment cost is greatly reduced; separating paper pulp from water, enabling the separated paper pulp and water mixed liquor to enter a high-precision filter, arranging an AFM active filter material in the high-precision filter, separating out purified water, carrying out backwashing desorption when the filtering effect is poor, desorbing high-concentration paper pulp, wherein the AFM active filter material has good filtering capacity after long-term repeated use, can prevent bacterial reproduction and algae growth, and can block more than 95% of micro impurities with the particle size of more than 1 micron; the sewage treatment system of the paper mill has the advantages of low load, simple treatment, low treatment cost, recovery of purified water and high-concentration paper pulp, over 95 percent of paper pulp recovery rate and resource saving.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the internal structure of the high-precision filter.
Wherein: a waste paper pulp collecting tank 1; a micro-electrolysis cell 2; a micro-nano aerator 3; a high-precision filter 4; a water inlet 4.1 is filtered; a water outlet 4.2 is filtered; 4.3, backwashing a water outlet; 4.4 of AFM active filter material; a pulp tank 5; a grid 6; an internal circulation line 7; an internal circulation pump 8; a suction pump 9.
Detailed Description
Referring to fig. 1 and 2, the utility model relates to a treatment device for paper industry wastewater, a waste paper pulp collecting tank 1, a micro-electrolysis tank 2, a micro-nano aeration machine 3, a high-precision filter 4 and a paper pulp tank 5, a water outlet of the waste water pulp collecting tank 1 is provided with a grid 6, the wastewater enters the micro-electrolysis tank 2 after being removed with larger impurities through the grid 6, the micro-electrolysis tank 2 is connected with the micro-nano aeration machine 3, the micro-nano aeration machine 3 sends generated micro-nano bubbles into the micro-electrolysis tank 2, the micro-electrolysis tank 2 is connected with an internal circulation pipeline 7, partial wastewater enters the micro-electrolysis tank 2 again through the internal circulation pipeline 7 under the action of an internal circulation pump 8 for treatment again, the paper pulp and the water are separated after aeration, emulsion breaking and sterilization through the micro-electrolysis tank 2, the separated paper pulp and the water mixed liquid enter the high-precision filter 4 for precipitation and filtration under the action of a water pump 9, the top of the high-precision filter 4 is provided with a filter water inlet 4.1, the bottom of the high-precision filter is provided with a filter water outlet 4.2, the side wall of the high-precision filter is provided with a backwashing water outlet 4.3, the high-precision filter 4 is internally provided with a plurality of layers of AFM active filter materials 4.4, the backwashing water outlet 4.3 is arranged above the AFM active filter materials 4.4, the AFM active filter materials 4.4 are provided with a plurality of layers from top to bottom, the particle size of the filter materials is gradually increased, and the paper pulp is conveniently desorbed during backwashing.
Most of the filtered purified water flows into a purified water tank for recycling; a small part of the water is used as make-up water and flows into the micro-electrolysis cell 2 again to participate in the reaction.
When the pressure difference between the water inlet pipeline and the water outlet pipeline of the high-precision filter 4 reaches 0.5bar or 1 week elapses, backwashing is carried out on the high-precision filter 4 to desorb the AFM active filter material, the desorbed high-concentration paper pulp enters the paper pulp tank 5 for use, and the AFM active filter material 4.4 recovers good filtering effect.
During backwashing, the filtering water outlet 4.2 is used as a backwashing water inlet, valves are arranged on the filtering inlet pipe and the filtering outlet pipe and the backwashing inlet pipe and the backwashing outlet pipe, and the filtering and backwashing of the high-precision filter 4 are carried out intermittently.
A method for treating paper industry wastewater comprises the following steps:
step one, removing large-particle impurities from the wastewater in the waste paper pulp collecting tank 1 through a grid 6, and then feeding the wastewater into a micro electrolytic tank;
step two, spraying micro-nano bubbles to the micro-electrolysis tank by a micro-nano aerator, demulsifying the wastewater, separating two phases, and enabling the wastewater to reenter the micro-electrolysis tank through an internal circulating pump to circularly treat the wastewater;
step three, the mixed liquor of the paper pulp and the water in the separation state enters a high-precision filter 4 for precipitation and filtration under the action of a water pump 9;
step four, part of the filtered purified water flows into a purified water tank and is recycled; the other part of the water as make-up water flows into the micro-electrolysis cell 2 again;
and step five, when the pressure difference between the water inlet pipeline and the water outlet pipeline of the high-precision filter 4 reaches 0.5bar or 1 week passes, backwashing the high-precision filter 4, desorbing the AFM active filter material, and feeding the desorbed high-concentration paper pulp into a paper pulp tank 5 for use.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a processing apparatus of paper industry waste water which characterized in that: comprises a waste paper pulp collecting tank (1), a micro-electrolysis tank (2), a micro-nano aerator (3), a high-precision filter (4) and a paper pulp tank (5), a water outlet of the waste paper pulp collecting tank (1) is provided with a grating (6), the waste water enters the micro electrolytic tank (2) after the larger impurities are removed by the grating (6), the micro-electrolysis tank (2) is connected with a micro-nano aerator (3), the micro-nano aerator (3) sends the generated micro-nano bubbles into the micro-electrolysis tank (2), the micro-electrolytic cell (2) is connected with an internal circulation pipeline (7), part of wastewater enters the micro-electrolytic cell (2) again through the internal circulation pipeline (7) under the action of an internal circulation pump (8), the separated pulp and water mixed liquor enters a high-precision filter (4) for precipitation and filtration under the action of a water suction pump (9), and a plurality of layers of AFM active filter materials (4.4) are arranged in the high-precision filter (4).
2. The apparatus for treating wastewater of paper industry according to claim 1, wherein: the top of the high-precision filter (4) is provided with a filtering water inlet (4.1), the bottom of the high-precision filter is provided with a filtering water outlet (4.2), the side wall of the high-precision filter is provided with a backwashing water outlet (4.3), and the backwashing water outlet (4.3) is arranged above the AFM active filter material (4.4).
3. The apparatus for treating wastewater of paper industry according to claim 1, wherein: the AFM active filter material (4.4) is provided with a plurality of layers from top to bottom, and the particle size of the filter material is gradually increased.
4. The apparatus for treating wastewater of paper industry according to claim 1, wherein: part of the filtered purified water flows into a purified water tank for recycling; the other part of the water is used as make-up water and flows into the micro-electrolysis cell (2) again.
5. The apparatus for treating wastewater of paper industry according to claim 1, wherein: during backwashing, the filter water outlet (4.2) is used as a backwashing water inlet, the AFM active filter material is desorbed, and the desorbed high-concentration paper pulp enters the paper pulp tank (5) from the backwashing water outlet (4.3).
6. The apparatus for treating wastewater of paper making industry according to claim 5, wherein: and when the pressure difference between the water inlet pipeline and the water outlet pipeline of the high-precision filter (4) reaches 0.5bar or 1 week passes, backwashing the high-precision filter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220795751.7U CN217516799U (en) | 2022-04-08 | 2022-04-08 | Treatment device for papermaking industrial wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220795751.7U CN217516799U (en) | 2022-04-08 | 2022-04-08 | Treatment device for papermaking industrial wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217516799U true CN217516799U (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220795751.7U Expired - Fee Related CN217516799U (en) | 2022-04-08 | 2022-04-08 | Treatment device for papermaking industrial wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217516799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114890593A (en) * | 2022-04-08 | 2022-08-12 | 江苏济冠通环保科技股份有限公司 | Method for treating papermaking industrial wastewater |
-
2022
- 2022-04-08 CN CN202220795751.7U patent/CN217516799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114890593A (en) * | 2022-04-08 | 2022-08-12 | 江苏济冠通环保科技股份有限公司 | Method for treating papermaking industrial wastewater |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220930 |