CN205473184U - Water paint liquid waste processing system - Google Patents
Water paint liquid waste processing system Download PDFInfo
- Publication number
- CN205473184U CN205473184U CN201620011783.8U CN201620011783U CN205473184U CN 205473184 U CN205473184 U CN 205473184U CN 201620011783 U CN201620011783 U CN 201620011783U CN 205473184 U CN205473184 U CN 205473184U
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- membrane
- biochemical
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 239000010808 liquid waste Substances 0.000 title claims abstract 5
- 239000003973 paint Substances 0.000 title abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 52
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 21
- 238000004062 sedimentation Methods 0.000 claims abstract description 20
- 238000005189 flocculation Methods 0.000 claims abstract description 18
- 230000016615 flocculation Effects 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000002699 waste material Substances 0.000 claims abstract description 16
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 239000010802 sludge Substances 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 230000015271 coagulation Effects 0.000 claims description 16
- 238000005345 coagulation Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 5
- 238000000576 coating method Methods 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses a water paint liquid waste processing system, it includes materialization processing unit, membrane processing unit and the biochemical processing unit who connects gradually: the materialization processing unit include: the raw water equalizing basin, thoughtlessly congeal flocculation basin, sedimentation tank, mud collecting pit, neutralization pond, the membrane processing unit include: one -level membrane processing apparatus, the dense water collection tank of one -level, one -level membrane outlet water pool, second grade membrane processing apparatus, the dense water collection tank of second grade, the biochemical treatment unit includes: biochemical equalizing basin, bio -contact oxidation tank, outlet water pool. The utility model discloses a liquid waste processing system can carry out efficient handling to the water paint waste liquid that produces among the coating process, and goes out the tertiary standard that hydroenergy satisfies the comprehensive emission standard of national sewage after handling.
Description
Technical Field
The utility model relates to a water paint waste liquid treatment system.
Background
Electrocoats and electrocoating processes have found wide application in the automotive industry. The ultrafiltrate and the anolyte or the catholyte generated in the electrophoretic coating process contain a considerable amount of polymer resin, cosolvent, pigment and filler, heavy metal and the like. In recent years, aqueous paints have been widely used in the automobile industry as an alternative to organic solvent paints in the light of the call for protection of the global environment and the promotion of environmental regulations in various regions. The water-based paint is a paint type which increases the number of polar functional bonds through resin modification and takes water as a dispersant by being supplemented with a surfactant. The waste water of the water-based paint discharged by the electrophoretic coating process is more difficult to treat due to the property that the water-based paint is dispersed in water. The aqueous paint waste liquid contains a large amount of polymer resin, pigment, metal ions and soluble low molecular solvent, and both COD (Chemical Oxygen Demand) and SS (suspended solids) concentrations are high. The water paint waste liquid is generally diluted and then treated, and no better direct treatment method exists at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art and can't carry out the defect of direct processing to the water based paint waste liquid that the electrophoresis application technology produced effectively, provide a water based paint waste liquid processing system.
The utility model discloses a following technical scheme solves above-mentioned technical problem:
the utility model provides a waste liquid treatment system, which comprises a physicochemical treatment unit, a membrane treatment unit and a biochemical treatment unit which are connected in sequence; wherein,
the materialization processing unit comprises: the system comprises a raw water adjusting tank, a coagulation flocculation tank, a sedimentation tank, a sludge collecting tank connected with an outlet at the bottom of the sedimentation tank and a neutralization tank connected with an outlet at the upper part of the sedimentation tank which are sequentially connected; a first water inlet pump is arranged between the raw water adjusting tank and the coagulation and flocculation tank and is used for pumping the wastewater from the raw water adjusting tank into the coagulation and flocculation tank; a second water inlet pump is arranged between the coagulation and flocculation tank and the sedimentation tank and is used for pumping the effluent of the coagulation and flocculation tank into the sedimentation tank; a first sludge pump is arranged between the sedimentation tank and the sludge collection tank and is used for pumping sludge at the bottom of the sedimentation tank into the sludge collection tank;
the membrane processing unit includes: the device comprises a primary membrane treatment device, a primary concentrated water collection tank connected with a concentrated water outlet of the primary membrane treatment device, a primary membrane water outlet pool connected with a water production outlet of the primary membrane treatment device, a secondary membrane treatment device connected with the primary membrane water outlet pool and a secondary concentrated water collection tank connected with a concentrated water outlet of the secondary membrane treatment device; a primary booster pump is arranged between the neutralization tank and the primary membrane treatment device and is used for pumping the effluent of the neutralization tank into the primary membrane treatment device; a secondary booster pump is arranged between the primary membrane water outlet pool and the secondary membrane treatment device and is used for pumping the outlet water of the primary membrane water outlet pool into the secondary membrane treatment device;
The biochemical treatment unit includes: a biochemical regulating tank, a biological contact oxidation tank and a water outlet tank which are connected in sequence; an inlet of the biochemical regulating tank is connected with a water production outlet of the secondary membrane treatment device, and a third water inlet pump is arranged between the biochemical regulating tank and the biological contact oxidation tank and is used for pumping the effluent of the biochemical regulating tank into the biological contact oxidation tank; the bottom outlet of the water outlet pool is connected with the sludge collecting pool, and a second sludge pump is arranged between the water outlet pool and the sludge collecting pool and used for pumping the sludge at the bottom of the water outlet pool into the sludge collecting pool of the physicochemical treatment unit.
Preferably, the neutralization tank is connected with the second-stage concentrated water collection tank, and a first backflow pump is arranged between the neutralization tank and the second-stage concentrated water collection tank and used for pumping the outlet water of the second-stage concentrated water collection tank back to the neutralization tank.
Preferably, the biochemical regulating tank is connected with the water outlet tank, and a second reflux pump is arranged between the biochemical regulating tank and the water outlet tank and used for pumping the water outlet part of the water outlet tank back to the biochemical regulating tank.
Preferably, an online pH meter is arranged inside the coagulation and flocculation tank; PAC (Polyaluminium Chloride) and PAM (Polyacrylamide) are respectively added into the coagulation flocculation tank, and sulfuric acid or sodium hydroxide is added to adjust the pH value.
Preferably, an online pH meter is arranged in the neutralization tank, and sulfuric acid or sodium hydroxide is added to adjust the pH value.
In the present invention, the above-mentioned preferred conditions can be combined at will on the basis of general knowledge in the field, so as to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: the utility model discloses a waste liquid treatment system can carry out effective processing to the water paint waste liquid that produces in the coating technology, and handles the tertiary standard that the back goes out water ability and satisfies "discharge standard is synthesized to sewage" (GB 8978-1996).
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Detailed Description
The present invention is further illustrated by way of the following preferred embodiments, but is not intended to be limited thereby within the scope of the embodiments described.
As shown in fig. 1, a waste liquid treatment system comprises a physicochemical treatment unit, a membrane treatment unit and a biochemical treatment unit which are connected in sequence; wherein,
the materialization processing unit comprises: the system comprises a raw water adjusting tank 1, a coagulation flocculation tank 3, a sedimentation tank 5, a sludge collecting tank 7 connected with an outlet at the bottom of the sedimentation tank 5 and a neutralization tank 8 connected with an outlet at the upper part of the sedimentation tank 5 which are sequentially connected; a first water inlet pump 2 is arranged between the raw water adjusting tank 1 and the coagulation and flocculation tank 3, and a second water inlet pump 4 is arranged between the coagulation and flocculation tank 3 and the sedimentation tank 5; a first sludge pump 6 is arranged between the sedimentation tank 5 and the sludge collection tank 7;
The membrane processing unit includes: the device comprises a primary membrane treatment device 10, a primary concentrated water collection tank 11 connected with a concentrated water outlet of the primary membrane treatment device 10, a primary membrane water outlet pool 12 connected with a water production outlet of the primary membrane treatment device 10, a secondary membrane treatment device 14 connected with the primary membrane water outlet pool 12, and a secondary concentrated water collection tank 15 connected with a concentrated water outlet of the secondary membrane treatment device 14; a primary booster pump 9 is arranged between the neutralization tank 8 and the primary membrane treatment device 10, and a secondary booster pump 13 is arranged between the primary membrane effluent tank 12 and the secondary membrane treatment device 14;
the biochemical treatment unit includes: a biochemical regulating tank 17, a biological contact oxidation tank 19 and a water outlet tank 20 which are connected in sequence; the inlet of the biochemical regulating tank 17 is connected with the water production outlet of the secondary membrane treatment device 14, and a third water inlet pump 18 is arranged between the biochemical regulating tank 17 and the biological contact oxidation tank 19; the bottom outlet of the water outlet pool 20 is connected with the sludge collecting pool 7, and a second sludge pump 21 is arranged between the water outlet pool 20 and the sludge collecting pool 7.
The neutralization pond 8 with the second grade concentrated water catch tank 15 is connected, just the neutralization pond 8 with be equipped with first backflow pump 16 between the second grade concentrated water catch tank 15. The biochemical regulating tank 17 is connected with the water outlet tank 20, and a second reflux pump 22 is arranged between the biochemical regulating tank 17 and the water outlet tank 20. And an online pH meter is arranged in the coagulation flocculation tank 3. And an online pH meter is arranged in the neutralization tank 8.
The water paint waste liquid treatment process of the preferred embodiment is as follows:
the waste liquid enters a raw water adjusting tank 1. Enters a coagulation and flocculation tank 3 under the action of a first water inlet pump 2. PAC and PAM are added into the coagulation flocculation tank 3, and an online pH meter is arranged. And the effluent after the reaction enters a sedimentation tank 5 under the action of a second water inlet pump 4. Solid and liquid in the sedimentation tank 5 are separated. Supernatant overflows into a neutralization tank 8, and lower-layer sludge enters a sludge collection tank 7 through a first sludge pump 6. The neutralization tank 8 is provided with an on-line pH meter. The effluent enters a primary membrane treatment device 10 under the action of a primary booster pump 9. After treatment, concentrated water enters a primary concentrated water collecting tank 11, produced water enters a primary membrane water outlet tank 12, outlet water of the primary membrane water outlet tank 12 enters a secondary membrane treatment device 14 under the action of a secondary booster pump 13, and concentrated water enters a secondary concentrated water collecting tank 15 and then returns to the neutralization tank 8 under the action of a first backflow pump 16. The produced water of the secondary membrane treatment device 14 enters a biochemical regulating tank 17. The effluent of the biochemical regulating tank 17 is pumped into a biological contact oxidation tank 19 through a third water inlet pump 18. The effluent enters the effluent pool 20 after reaction. The effluent of the effluent pool 20 is partially returned to the biochemical regulating pool 17 through a second reflux pump 22, and partially discharged directly. The sludge at the bottom of the effluent pool 20 enters the sludge collecting pool 7 through a second sludge pump 21.
In the description of the present invention, it is to be understood 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 those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (5)
1. A waste liquid treatment system is characterized by comprising a physicochemical treatment unit, a membrane treatment unit and a biochemical treatment unit which are connected in sequence; wherein,
the materialization processing unit comprises: the system comprises a raw water adjusting tank, a coagulation flocculation tank, a sedimentation tank, a sludge collecting tank connected with an outlet at the bottom of the sedimentation tank and a neutralization tank connected with an outlet at the upper part of the sedimentation tank which are sequentially connected; a first water inlet pump is arranged between the raw water adjusting tank and the coagulation and flocculation tank, and a second water inlet pump is arranged between the coagulation and flocculation tank and the sedimentation tank; a first sludge pump is arranged between the sedimentation tank and the sludge collection tank;
the membrane processing unit includes: the device comprises a primary membrane treatment device, a primary concentrated water collection tank connected with a concentrated water outlet of the primary membrane treatment device, a primary membrane water outlet pool connected with a water production outlet of the primary membrane treatment device, a secondary membrane treatment device connected with the primary membrane water outlet pool and a secondary concentrated water collection tank connected with a concentrated water outlet of the secondary membrane treatment device; a primary booster pump is arranged between the neutralization tank and the primary membrane treatment device, and a secondary booster pump is arranged between the primary membrane water outlet tank and the secondary membrane treatment device;
The biochemical treatment unit includes: a biochemical regulating tank, a biological contact oxidation tank and a water outlet tank which are connected in sequence; an inlet of the biochemical regulating tank is connected with a water production outlet of the secondary membrane treatment device, and a third water inlet pump is arranged between the biochemical regulating tank and the biological contact oxidation tank; the bottom outlet of the water outlet pool is connected with the sludge collecting pool, and a second sludge pump is arranged between the water outlet pool and the sludge collecting pool.
2. The liquid waste treatment system of claim 1, wherein the neutralization tank is connected to the secondary concentrated water collection tank, and a first reflux pump is disposed between the neutralization tank and the secondary concentrated water collection tank.
3. The waste liquid treatment system according to claim 1, wherein the biochemical regulating tank is connected to the effluent tank, and a second reflux pump is provided between the biochemical regulating tank and the effluent tank.
4. The waste liquid treatment system of claim 1, wherein an in-line pH meter is disposed inside the coagulation-flocculation tank.
5. The liquid waste treatment system of claim 1, wherein the neutralization tank is internally provided with an in-line pH meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011783.8U CN205473184U (en) | 2016-01-07 | 2016-01-07 | Water paint liquid waste processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620011783.8U CN205473184U (en) | 2016-01-07 | 2016-01-07 | Water paint liquid waste processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205473184U true CN205473184U (en) | 2016-08-17 |
Family
ID=56663967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620011783.8U Active CN205473184U (en) | 2016-01-07 | 2016-01-07 | Water paint liquid waste processing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205473184U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902797A (en) * | 2017-11-18 | 2018-04-13 | 深圳市安东尼奥家具有限公司 | Paint sewage purifier |
| CN108911356A (en) * | 2018-06-01 | 2018-11-30 | 金华职业技术学院 | A kind of aqueous paint waste water integrated equipment for wastewater treatment |
| CN109205824A (en) * | 2017-07-06 | 2019-01-15 | 广东新会中集特种运输设备有限公司 | The processing system of aqueous paint waste water and the processing method for using the processing system |
-
2016
- 2016-01-07 CN CN201620011783.8U patent/CN205473184U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109205824A (en) * | 2017-07-06 | 2019-01-15 | 广东新会中集特种运输设备有限公司 | The processing system of aqueous paint waste water and the processing method for using the processing system |
| CN107902797A (en) * | 2017-11-18 | 2018-04-13 | 深圳市安东尼奥家具有限公司 | Paint sewage purifier |
| CN108911356A (en) * | 2018-06-01 | 2018-11-30 | 金华职业技术学院 | A kind of aqueous paint waste water integrated equipment for wastewater treatment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |