CN219991360U - Circulating water sand filtration backwash water treatment device - Google Patents
Circulating water sand filtration backwash water treatment device Download PDFInfo
- Publication number
- CN219991360U CN219991360U CN202321069350.4U CN202321069350U CN219991360U CN 219991360 U CN219991360 U CN 219991360U CN 202321069350 U CN202321069350 U CN 202321069350U CN 219991360 U CN219991360 U CN 219991360U
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- CN
- China
- Prior art keywords
- reverse osmosis
- water
- tank
- water tank
- membrane device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000009287 sand filtration Methods 0.000 title claims abstract description 22
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 74
- 239000012528 membrane Substances 0.000 claims abstract description 45
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims abstract description 19
- 238000005345 coagulation Methods 0.000 claims abstract description 14
- 230000015271 coagulation Effects 0.000 claims abstract description 14
- 239000008234 soft water Substances 0.000 claims abstract description 14
- 239000010802 sludge Substances 0.000 claims description 18
- 230000003204 osmotic effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 239000000084 colloidal system Substances 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 7
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 4
- 229910001425 magnesium ion Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 230000001112 coagulating effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a sand filtration backwash water treatment device of a circulating water tank, which comprises a step of enabling sand filtration backwash water from the circulating water tank to enter a receiving water tank; the receiving pool is connected with the coagulation reaction sedimentation tank; a coagulation reaction sedimentation tank and a clean water tank; the clean water tank is connected with the multi-medium filter; the multi-medium filter is connected with a multi-medium filter water producing pool; the multi-medium filter water producing pool is connected with the ultrafiltration device; the ultrafiltration device is connected with the ultrafiltration water producing tank; the ultrafiltration water producing tank is connected with the softener; the softener is connected with the soft water tank; the soft water tank is connected with the reverse osmosis membrane device; the reverse osmosis membrane device is connected with a reverse osmosis concentrated water tank; the reverse osmosis concentrated water tank is connected with the MVR device. The utility model aims at treating the circulating water sand filtration backwash water, and can remove suspended matters, impurity colloid, calcium magnesium ions and a small amount of organic matters and heavy metal ions to achieve the water taking standard.
Description
Technical Field
The utility model relates to a sand filtration backwash water treatment device for a circulating water tank, which adopts coagulating sedimentation to remove suspended matters and impurity colloid, and then supernatant enters a clean water tank, and is recycled after softening, ultrafiltration and multistage reverse osmosis treatment, and sludge is discharged to a sludge concentration tank. And (3) returning the filter pressing liquid to the front-end coagulating sedimentation tank after the sludge is subjected to plate-frame filter pressing, and realizing sludge reduction after the sludge subjected to filter pressing is subjected to sludge drying treatment. The recycling of the production wastewater is realized, and the purposes of saving water and recycling resources are achieved.
Background
The circulating water needs to be filtered, so that a large amount of filter backwash water is discharged, the production cost is increased, and the resource waste is caused. In order to change the situation, the sand filtration backwash water of the circulating water tank is purified and then reused for water supply of production water and circulating water after reaching the enterprise water taking standard.
Disclosure of Invention
The utility model provides a sand filtration backwash water treatment device for a circulating water tank. The method aims at removing suspended matters, impurity colloid, calcium magnesium ions and a small amount of organic matters and heavy metal ions in sand filtration backwash water of a circulating water pool through relevant devices such as coagulating sedimentation, softening and membrane separation so as to achieve the purpose of recycling. The problems of enterprise water resource waste and water right are reduced, the recycling of production wastewater is realized, the water saving and the recycling of resources are realized, and the method has important significance for enterprise energy saving, consumption reduction and core competitiveness improvement.
The utility model provides a sand filtration backwash water treatment device of a circulating water tank, which comprises a step of enabling sand filtration backwash water from the circulating water tank to enter a receiving water tank;
the receiving pool is connected with the coagulation reaction sedimentation tank;
a coagulation reaction sedimentation tank and a clean water tank;
the clean water tank is connected with the multi-medium filter;
the multi-medium filter is connected with a multi-medium filter water producing pool;
the multi-medium filter water producing pool is connected with the ultrafiltration device;
the ultrafiltration device is connected with the ultrafiltration water producing tank;
the ultrafiltration water producing tank is connected with the softener;
the softener is connected with the soft water tank;
the soft water tank is connected with the reverse osmosis membrane device;
the reverse osmosis membrane device is connected with a reverse osmosis concentrated water tank;
the reverse osmosis concentrated water tank is connected with the MVR device.
The osmotic membrane device comprises a multistage reverse osmosis membrane device and a multistage reverse osmosis concentrated water tank which are connected in series.
The osmotic membrane device comprises a three-stage reverse osmosis membrane device and a three-stage reverse osmosis concentrated water tank which are connected in series; specifically, a soft water tank is connected with a first-stage reverse osmosis membrane device;
the first-stage reverse osmosis membrane device is connected with a first-stage reverse osmosis concentrated water tank;
the first-stage reverse osmosis concentrated water tank is connected with the second-stage reverse osmosis membrane device;
the second-stage reverse osmosis membrane device is connected with a second-stage reverse osmosis concentrated water tank;
the second-stage reverse osmosis concentrated water tank is connected with the third-stage reverse osmosis membrane device;
the three-stage reverse osmosis membrane device is connected with a three-stage reverse osmosis concentrated water tank.
The first-stage reverse osmosis membrane device, the second-stage reverse osmosis membrane device and the third-stage reverse osmosis membrane device are all connected with a reuse water pool.
The coagulation reaction sedimentation tank is also connected with a sludge concentration tank, and the sludge concentration tank is connected with a plate-and-frame filter press.
The liquid level detection is arranged on the water receiving pool, the coagulation reaction sedimentation pool, the clean water pool, the ultrafiltration water production pool, the soft water pool, the reuse water pool, the primary reverse osmosis concentrated water, the secondary reverse osmosis concentrated water and the tertiary reverse osmosis concentrated water, so that the liquid level interlocking control is formed.
And the sludge in the sludge concentration tank is returned to the front-end coagulating sedimentation tank through filter pressing liquid after passing through a plate-and-frame filter press, and sludge reduction is realized after the filter pressing sludge is subjected to sludge drying treatment.
In a preferred scheme, the coagulation reaction sedimentation tank and the softener comprise matched dosing devices;
the utility model aims at treating the circulating water sand filtration backwash water, and can remove suspended matters, impurity colloid, calcium magnesium ions and a small amount of organic matters and heavy metal ions to achieve the water taking standard.
Drawings
FIG. 1 is a layout of a sand filtration backwash water treatment device for a circulating water pond.
In the figure, a receiving water tank 1, a coagulation reaction sedimentation tank 2, a clean water tank 3, a sludge concentration tank 4, a multi-medium filter 5, a multi-medium filter water producing tank 6, an ultrafiltration device 7, an ultrafiltration water producing tank 8, a softener 9, a soft water tank 10, a primary reverse osmosis membrane 11, a recycling water tank 12, a primary reverse osmosis concentrated water tank 13, a secondary reverse osmosis membrane 14, a secondary reverse osmosis concentrated water tank 15, a tertiary reverse osmosis membrane 16, a tertiary reverse osmosis concentrated water tank 17 and a plate-and-frame filter press 18.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1, a circulating water sand filtration backwash water treatment device comprises a receiving pond 1 into which pond sand filtration backwash water from circulating water enters;
the receiving water tank 1 is connected with the coagulation reaction sedimentation tank 2;
the coagulation reaction sedimentation tank 2 is connected with the clean water tank 3 and the sludge concentration tank 4;
the clean water tank 3 is connected with the multi-medium filter 5;
the multi-medium filter 5 is connected with a multi-medium filter water producing tank 6;
the multi-medium filter water producing tank 6 is connected with an ultrafiltration device 7;
the ultrafiltration device 7 is connected with an ultrafiltration water producing tank 8;
the ultrafiltration water producing tank 8 is connected with a softener 9;
the softener 9 is connected with a soft water tank 10;
the soft water tank 10 is connected with a first-stage reverse osmosis membrane device 11;
the first-stage reverse osmosis membrane device 11 is connected with a reuse water tank 12 and a first-stage reverse osmosis concentrated water tank 13;
the first-stage reverse osmosis concentrated water tank 13 is connected with the second-stage reverse osmosis membrane device 14;
the second-stage reverse osmosis membrane device 14 is connected with the reuse water tank 12 and the second-stage reverse osmosis concentrated water tank 15;
the second-stage reverse osmosis concentrated water tank 15 is connected with the third-stage reverse osmosis membrane device 16;
the third-stage reverse osmosis membrane device 16 is connected with the reuse water tank 12 and the third-stage reverse osmosis concentrated water tank 17;
the three-stage reverse osmosis concentrated water tank 17 is connected with an MVR device.
The working principle of the embodiment is as follows:
in the operation process, pond sand filtration backwash water from circulating water enters a receiving pond 1, soda and slaked lime are added and mixed, and then enter a coagulation reaction sedimentation pond, most of hardness, iron and other substances in the sedimentated water are removed simultaneously through the softening sedimentation effect, most of suspended matters in the water are removed simultaneously, clear water overflows and enters a clear water pond 3, and turbid liquid at the bottom enters a sludge concentration pond 4. The clear water in the clear water pond enters a multi-medium water producing pond 6 after suspended matters, colloid, chromaticity and turbidity are removed through a multi-medium filter 5, then enters an ultrafiltration water producing pond 8 after suspended matters, colloid, chromaticity, turbidity, organic matters and other impurities which prevent the normal operation of a subsequent process system are further removed through an ultrafiltration device 7, then enters a soft water pond after calcium-magnesium heavy metal ions and other impurities are removed through a softener, and then inorganic ions, bacteria, viruses, organic matters, colloid and other impurities in the soft water are removed through a first reverse osmosis membrane (11), a second reverse osmosis membrane and a third reverse osmosis membrane (14, 16), and are discharged through a concentrated water pipe (enter reverse osmosis concentrated water ponds 13, 15 and 17), so that high-quality reuse water is obtained from a water producing end (enter a reuse water pond 12). The embodiment can realize the treatment and purification of the pond sand filtration backwash water of the circulating water, and the backwash water is recycled to the production and the water replenishing of the circulating water pond.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (5)
1. The utility model provides a circulating water sand filtration backwash water processing apparatus which characterized in that: the sand filtering backwash water from the circulating water tank enters a receiving water tank (1);
the receiving water tank (1) is connected with the coagulation reaction sedimentation tank (2);
a coagulation reaction sedimentation tank (2) and a clean water tank (3);
the clean water tank (3) is connected with the multi-medium filter (5);
the multi-medium filter (5) is connected with a multi-medium filter water producing tank (6);
the multi-medium filter water producing tank (6) is connected with the ultrafiltration device (7);
the ultrafiltration device (7) is connected with an ultrafiltration water producing tank (8);
the ultrafiltration water producing tank (8) is connected with the softener (9);
the softener (9) is connected with the soft water tank (10);
the soft water tank (10) is connected with a reverse osmosis membrane device;
the reverse osmosis membrane device is connected with a reverse osmosis concentrated water tank;
the reverse osmosis concentrated water tank is connected with the MVR device.
2. The circulating water sand filtration backwash water treatment device of claim 1, wherein: the osmotic membrane device comprises a multistage reverse osmosis membrane device and a multistage reverse osmosis concentrated water tank which are connected in series.
3. The circulating water sand filtration backwash water treatment device of claim 1, wherein: the osmotic membrane device comprises a three-stage reverse osmosis membrane device and a three-stage reverse osmosis concentrated water tank which are connected in series; the soft water tank (10) is connected with the first-stage reverse osmosis membrane device (11);
the first-stage reverse osmosis membrane device (11) is connected with a first-stage reverse osmosis concentrated water tank (13);
the first-stage reverse osmosis concentrated water tank (13) is connected with the second-stage reverse osmosis membrane device (14);
the second-stage reverse osmosis membrane device (14) is connected with a second-stage reverse osmosis concentrated water tank (15);
the second-stage reverse osmosis concentrated water tank (15) is connected with the third-stage reverse osmosis membrane device (16);
the three-stage reverse osmosis membrane device (16) is connected with a three-stage reverse osmosis concentrated water tank (17).
4. The circulating water sand filtration backwash water treatment device of claim 1, wherein: the first-stage reverse osmosis membrane device (11), the second-stage reverse osmosis membrane device (14) and the third-stage reverse osmosis membrane device (16) are connected with the reuse water tank (12).
5. The circulating water sand filtration backwash water treatment device of claim 1, wherein: the coagulation sedimentation tank (2) is also connected with a sludge concentration tank (4), and the sludge concentration tank (4) is connected with a plate-and-frame filter press (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321069350.4U CN219991360U (en) | 2023-05-06 | 2023-05-06 | Circulating water sand filtration backwash water treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321069350.4U CN219991360U (en) | 2023-05-06 | 2023-05-06 | Circulating water sand filtration backwash water treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991360U true CN219991360U (en) | 2023-11-10 |
Family
ID=88608066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321069350.4U Active CN219991360U (en) | 2023-05-06 | 2023-05-06 | Circulating water sand filtration backwash water treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991360U (en) |
-
2023
- 2023-05-06 CN CN202321069350.4U patent/CN219991360U/en active Active
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| GR01 | Patent grant |