CN220132056U - Industrial sewage pretreatment system - Google Patents
Industrial sewage pretreatment system Download PDFInfo
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- CN220132056U CN220132056U CN202322898842.0U CN202322898842U CN220132056U CN 220132056 U CN220132056 U CN 220132056U CN 202322898842 U CN202322898842 U CN 202322898842U CN 220132056 U CN220132056 U CN 220132056U
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- CN
- China
- Prior art keywords
- tank
- oxidation tank
- liquid film
- pretreatment system
- catalytic oxidation
- Prior art date
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- 239000010865 sewage Substances 0.000 title claims abstract description 42
- 230000003647 oxidation Effects 0.000 claims abstract description 76
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000003197 catalytic effect Effects 0.000 claims abstract description 31
- 239000010802 sludge Substances 0.000 claims description 30
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000004062 sedimentation Methods 0.000 claims description 16
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- 230000007062 hydrolysis Effects 0.000 claims description 8
- 238000006460 hydrolysis reaction Methods 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 6
- 239000010842 industrial wastewater Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000003818 cinder Substances 0.000 claims 1
- 239000013049 sediment Substances 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract description 11
- 238000007790 scraping Methods 0.000 abstract description 10
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 150000001923 cyclic compounds Chemical class 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 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
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- -1 hydroxyl free radical Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model relates to the technical field of sewage treatment, in particular to an industrial sewage pretreatment system, which comprises an adjusting tank, a liquid film oxidation tank, a catalytic oxidation tank and biochemical equipment, wherein the liquid film oxidation tank is connected with a booster pump I and a venturi jet device I, and the top of the liquid film oxidation tank is provided with a slag discharge port and a slag scraping machine; the outer side surface of the catalytic oxidation tank is connected with a booster pump II and a venturi ejector II through pipelines. According to the industrial sewage pretreatment system, sewage enters the liquid film oxidation tank, air-water is mixed and then forms nano-scale micro-bubbles to form an air-floatation effect, suspended matters in the water float upwards to a slag scraping area of the liquid film oxidation tank, suspended matters in the sewage are separated through a slag scraping machine of the liquid film oxidation tank, the sewage enters the catalytic oxidation tank, ozone and water are mixed, and pollutants such as phenol, cyanogen and the like in the water can be sterilized, disinfected and removed, so that the wastewater is decolorized, the biodegradability of the wastewater is improved, and subsequent biochemical treatment is facilitated.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to an industrial sewage pretreatment system.
Background
At present, conventional treatment equipment for industrial sewage is directly subjected to biochemical treatment, in order to meet the water inlet requirement, a biochemical system of a sewage treatment plant is subjected to biochemical treatment after production water is added into the industrial sewage for dilution, the common method is that 3 tons of production water is added into every 1 ton of industrial sewage for dilution, the biochemical treatment can be performed, water resources are seriously wasted, and the diluted treatment means have no treatment effect on heavy metals, scum and the like in a water body, the biochemical treatment process is complex, the emission standard is difficult to reach, the treatment burden after the comprehensive treatment of the entering water is large, and the production efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides an industrial sewage pretreatment system, which aims to solve the problems that conventional industrial sewage treatment equipment needs to dilute industrial sewage by adding production water, the dilution cannot effectively treat heavy metals, scum and the like in water, the biochemical treatment process is complex, the emission standard is difficult to reach, the treatment burden after the comprehensive treatment of the entering water is large, the production efficiency is low and the like.
In order to achieve the aim of the utility model, the utility model adopts the following technical scheme:
the industrial sewage pretreatment system comprises an adjusting tank, a liquid film oxidation tank, a catalytic oxidation tank, a sedimentation tank, a sludge screw pump, a water outlet tank, a hydrolysis tank, an anoxic tank, an aerobic tank, an MBR tank, a sludge concentration tank and a sludge filter press, wherein the liquid film oxidation tank is communicated with the adjusting tank, a booster pump I and a venturi jet device I are connected to the bottom of the outer side surface of the liquid film oxidation tank through pipelines, a slag discharge port is formed in the top of the outer side surface of the liquid film oxidation tank, and a slag scraping machine is arranged at the top of the liquid film oxidation tank;
the catalytic oxidation tank is communicated with the liquid film oxidation tank, a booster pump II and a venturi jet device II are connected to the outer side face of the catalytic oxidation tank through pipelines, and a catalyst is arranged in the catalytic oxidation tank.
Further, equalizing basin, liquid membrane oxidation jar, catalytic oxidation jar, sedimentation tank, play water pitcher, hydrolytic tank, anoxic tank, good oxygen pond, MBR pond, mud thickening tank and mud pressure filter loop through the pipeline intercommunication, sedimentation tank, mud screw pump, mud thickening tank and mud pressure filter communicate in proper order, mud thickening tank and equalizing basin intercommunication.
Further, a water inlet valve and a first pH regulating tank are arranged between the regulating tank and the liquid film oxidation tank.
Further, a pH regulating tank II, a hydrogen peroxide tank and a ferrous iron tank are arranged between the liquid film oxidation tank and the catalytic oxidation tank.
Further, an alkali pool and a flocculating agent pool are arranged between the catalytic oxidation tank and the sedimentation tank.
Further, the pH adjusting tank I, the pH adjusting tank II, the hydrogen peroxide tank, the ferrous iron tank, the alkali tank and the flocculating agent tank are respectively provided with a stirrer.
The beneficial effects of the utility model are as follows:
according to the industrial sewage pretreatment system, sewage enters the liquid film oxidation tank through the liquid film oxidation tank, air and water are mixed through the venturi jet device I, nano-scale microbubbles are formed after the air and water are mixed to form an air floatation effect, suspended matters in the water float upwards to a slag scraping area of the liquid film oxidation tank, suspended matters in the sewage are separated through the slag scraping machine of the liquid film oxidation tank, the suspended matters in the sewage basically reach the qualification standard, the sewage enters the catalytic oxidation tank through the catalytic oxidation tank, ozone gas and water are mixed through the venturi jet device II, the ozone gas has strong oxidation property, and the sewage can be sterilized, disinfected, deodorized and polluted matters such as phenol, cyanogen and the like in the sewage after the air and water are mixed through the venturi jet device II, so that the sewage is decolorized, the biodegradability of the sewage is improved, and the subsequent biochemical treatment is convenient.
Drawings
FIG. 1 is a schematic diagram of an industrial wastewater pretreatment system according to the present utility model;
fig. 2 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
Reference numeral control table:
1. an adjusting tank; 2. a liquid film oxidation tank; 3. a catalytic oxidation tank; 4. a sedimentation tank; 5. a sludge screw pump; 6. a water outlet tank; 7. a hydrolysis tank; 8. an anoxic tank; 9. an aerobic tank; 10. an MBR pool; 11. a sludge concentration tank; 12. a sludge press filter; 13. a first booster pump; 14. a jet device I; 15. a second booster pump; 16. a second ejector; 17. a water inlet valve; 18. a first pH regulating tank; 19. a second pH regulating tank; 20. a hydrogen peroxide pool; 21. a ferrous pool; 22. an alkali pool; 23. a flocculant pool; 24. a slag discharge port; 25. a slag scraping machine.
Detailed Description
Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
In order to make the contents of the present utility model more clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 to 2, an industrial sewage pretreatment system comprises a regulating tank 1, a liquid film oxidation tank 2, a catalytic oxidation tank 3, a sedimentation tank 4, a sludge screw pump 5, a water outlet tank 6, a hydrolysis tank 7, an anoxic tank 8, an aerobic tank 9, an MBR tank 10, a sludge concentration tank 11 and a sludge filter press 12.
The device comprises an adjusting tank 1, a liquid film oxidation tank 2, a catalytic oxidation tank 3, a sedimentation tank 4, a water outlet tank 6, a hydrolysis tank 7, an anoxic tank 8, an aerobic tank 9, an MBR tank 10, a sludge concentration tank 11 and a sludge filter press 12 which are sequentially communicated, wherein a water inlet valve 17 and a pH adjusting tank I18 are arranged between the adjusting tank 1 and the liquid film oxidation tank 2.
A second pH adjusting tank 19, a hydrogen peroxide tank 20 and a ferrous iron tank 21 are arranged between the liquid film oxidation tank 2 and the catalytic oxidation tank 3.
The pH adjusting tank I18, the pH adjusting tank II 19, the hydrogen peroxide tank 20, the ferrous iron tank 21, the alkali tank 22 and the flocculating agent tank 23 are respectively provided with a stirrer.
The liquid film oxidation tank 2 is communicated with the regulating tank 1, a booster pump I13 and a venturi jet device I14 are connected to the bottom of the outer side face of the liquid film oxidation tank 2 through pipelines, a slag discharge port 24 is formed in the top of the outer side face of the liquid film oxidation tank 2, and a slag scraping machine 25 is arranged at the top of the liquid film oxidation tank 2.
The sewage from the two-effect evaporator enters the regulating tank 1 and then enters the liquid film oxidation tank 2, the pH regulating tank I18 regulates the pH value of the sewage, air is introduced into the sewage through the venturi jet device I14, air and water are mixed and then form nano-level microbubbles to form an air floatation effect, suspended matters in the water float up to a slag scraping area of the liquid film oxidation tank 2, suspended matters in the sewage are separated through the slag scraping machine 25 at the top of the liquid film oxidation tank 2, the suspended matters in the sewage basically reach the qualification standard, and meanwhile, the suspended matters in the sewage are further reduced to prevent the catalyst in the catalytic oxidation tank 3 from being blocked for the next step entering the catalytic oxidation tank 3, and the condition is created for improving the integral operation efficiency of equipment.
The catalytic oxidation tank 3 is communicated with the liquid film oxidation tank 2, a booster pump II 15 and a venturi jet device II 16 are connected to the outer side surface of the catalytic oxidation tank 3 through pipelines, a catalyst is arranged in the catalytic oxidation tank 3, the catalyst is formed by balling aluminum oxide and noble metal or rare earth by a balling machine, and sintering.
The sewage enters a catalytic oxidation tank 3, a pH regulating tank II 19, a hydrogen peroxide tank 20 and a ferrous iron tank 21 are respectively filled with a pH regulator, hydrogen peroxide and ferrous iron, ozone gas and water are mixed through a venturi jet device II 16, the ozone gas has strong oxidation property, and after the ozone gas and the water are mixed through the venturi jet device II 16, pollutants such as phenol, cyanogen and the like in the sewage can be sterilized, disinfected and removed.
The waste water often contains a chromophoric group such as diazo, azo or a cyclic compound with a benzene ring, and ozone oxidation can break the double bond of the chromophoric group of the dye and destroy the cyclic compound such as benzene, naphthalene, anthracene, and the like constituting the chromophoric group, thereby decoloring the waste water.
The catalyst in the ozone catalytic oxidation equipment catalyzes the ozone gas to form a radical type chain reaction, accelerates the ozone catalytic decomposition to generate-OH (hydroxyl free radical) to open a ring and break a chain of an organic matter, degrades mineralized organic matters, removes the toxicity of sewage, improves the B/C ratio, namely improves the biodegradability of the sewage, and creates conditions for the subsequent biochemical process.
Removing metal ions such as iron, manganese and the like in water: metal ions such as iron and manganese can be separated from water by ozone oxidation.
An alkali pool 22 and a flocculating agent pool 23 are arranged between the catalytic oxidation tank 3 and the sedimentation tank 4.
Adding alkali and flocculant into sewage, entering a sedimentation tank 4 for sedimentation, entering a water outlet tank 6 from the sewage in the sedimentation tank 4, conveying the sewage to a hydrolysis tank 7 for hydrolysis by a lifting pump, performing biochemical treatment by an anoxic tank 8, an aerobic tank 9 and an MBR tank 10, and discharging after reaching standards.
The sedimentation tank 4, the sludge screw pump 5, the sludge concentration tank 11 and the sludge press filter 12 are communicated in sequence.
Sludge in the MBR tank 10 enters a sludge concentration tank 11, the precipitated sludge is conveyed to the sludge concentration tank 11 through a sludge screw pump 5, and the sludge in the sludge concentration tank 11 is discharged through filter pressing of a sludge filter press 12.
The sludge concentration tank 11 is communicated with the regulating tank 1, supernatant fluid of the sludge concentration tank 11 is conveyed to the regulating tank 1, and the treatment process is repeated.
The above description is illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, but is to be accorded the full scope of the claims.
Claims (6)
1. The utility model provides an industrial sewage pretreatment system, includes equalizing basin (1), liquid membrane oxidation tank (2), catalytic oxidation tank (3), sedimentation tank (4), mud screw pump (5), play water tank (6), hydrolysis tank (7), anoxic tank (8), good oxygen pond (9), MBR pond (10), mud concentration tank (11) and mud pressure filter (12), its characterized in that, liquid membrane oxidation tank (2) and equalizing basin (1) intercommunication, liquid membrane oxidation tank (2) lateral surface bottom has booster pump (13) and venturi jet device (14) through the pipe connection, liquid membrane oxidation tank (2) lateral surface top is equipped with row cinder notch (24), liquid membrane oxidation tank (2) top is equipped with scrapes sediment machine (25);
the catalytic oxidation tank (3) is communicated with the liquid film oxidation tank (2), a booster pump II (15) and a venturi jet device II (16) are connected to the outer side face of the catalytic oxidation tank (3) through pipelines, and a catalyst is arranged in the catalytic oxidation tank (3).
2. An industrial wastewater pretreatment system according to claim 1, wherein: the device comprises a regulating tank (1), a liquid film oxidation tank (2), a catalytic oxidation tank (3), a sedimentation tank (4), a water outlet tank (6), a hydrolysis tank (7), an anoxic tank (8), an aerobic tank (9), an MBR tank (10), a sludge concentration tank (11) and a sludge filter press (12) which are sequentially communicated through pipelines, wherein the sedimentation tank (4), a sludge screw pump (5), the sludge concentration tank (11) and the sludge filter press (12) are sequentially communicated, and the sludge concentration tank (11) is communicated with the regulating tank (1).
3. An industrial wastewater pretreatment system according to claim 2 wherein: a water inlet valve (17) and a pH regulating tank I (18) are arranged between the regulating tank (1) and the liquid film oxidation tank (2).
4. An industrial wastewater pretreatment system according to claim 3, wherein: a pH adjusting tank II (19), a hydrogen peroxide tank (20) and a ferrous iron tank (21) are arranged between the liquid film oxidation tank (2) and the catalytic oxidation tank (3).
5. An industrial wastewater pretreatment system according to claim 4, wherein: an alkali pool (22) and a flocculating agent pool (23) are arranged between the catalytic oxidation tank (3) and the sedimentation tank (4).
6. An industrial wastewater pretreatment system according to claim 5, wherein: and stirrers are arranged in the first pH adjusting tank (18), the second pH adjusting tank (19), the hydrogen peroxide tank (20), the ferrous iron tank (21), the alkali tank (22) and the flocculating agent tank (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322898842.0U CN220132056U (en) | 2023-10-27 | 2023-10-27 | Industrial sewage pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322898842.0U CN220132056U (en) | 2023-10-27 | 2023-10-27 | Industrial sewage pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220132056U true CN220132056U (en) | 2023-12-05 |
Family
ID=88960026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322898842.0U Active CN220132056U (en) | 2023-10-27 | 2023-10-27 | Industrial sewage pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220132056U (en) |
-
2023
- 2023-10-27 CN CN202322898842.0U patent/CN220132056U/en active Active
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