CN111186956A - Magnetic coagulation efficient rapid sedimentation purification device and process for municipal sewage treatment - Google Patents
Magnetic coagulation efficient rapid sedimentation purification device and process for municipal sewage treatment Download PDFInfo
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- CN111186956A CN111186956A CN202010188177.4A CN202010188177A CN111186956A CN 111186956 A CN111186956 A CN 111186956A CN 202010188177 A CN202010188177 A CN 202010188177A CN 111186956 A CN111186956 A CN 111186956A
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- 238000000746 purification Methods 0.000 title claims abstract description 50
- 239000010865 sewage Substances 0.000 title claims abstract description 45
- 230000015271 coagulation Effects 0.000 title claims abstract description 21
- 238000005345 coagulation Methods 0.000 title claims abstract description 21
- 238000004062 sedimentation Methods 0.000 title claims description 26
- 238000000034 method Methods 0.000 title abstract description 5
- 230000008569 process Effects 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000010802 sludge Substances 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 43
- 238000005352 clarification Methods 0.000 claims abstract description 29
- 238000005189 flocculation Methods 0.000 claims abstract description 26
- 230000016615 flocculation Effects 0.000 claims abstract description 24
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims abstract description 12
- 239000006148 magnetic separator Substances 0.000 claims abstract description 6
- 239000006247 magnetic powder Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000008394 flocculating agent Substances 0.000 claims description 2
- 238000006386 neutralization reaction Methods 0.000 claims description 2
- 239000008213 purified water Substances 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a magnetic coagulation high-efficiency quick-settling purification device and a process for municipal sewage treatment, belonging to the technical field of sewage treatment, and comprising a water distribution zone, a water inlet zone, a quick mixing zone, a magnetic mixing zone, a flocculation zone, a high-efficiency quick-settling clarification purification zone and a water outlet zone which are sequentially connected through water passing holes, wherein one side of the high-efficiency quick-settling clarification purification zone is provided with a temporary sludge storage tank, the bottom in the temporary sludge storage tank is provided with a high-speed shearing machine, a residual sludge pump and a return sludge pump, one side of the magnetic mixing zone is connected with the high-speed shearing machine through a magnetic separator, the water distribution zone is communicated with a water inlet pipe, and the water outlet zone is communicated with. The invention has the advantages of small occupied area, simple structure, stable operation, high automation degree, high-efficiency quick-settling purification, good water outlet effect, low investment and operation cost, convenient management and the like, can efficiently remove pollutants such as total phosphorus, SS and the like, and has wide application prospect in the environment-friendly market.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a magnetic coagulation high-efficiency rapid sedimentation purification device and a magnetic coagulation high-efficiency rapid sedimentation purification process for municipal sewage treatment.
Background
The discharge standard of the urban sewage treatment plant is improved, the water environment pollution is serious, and water resources are insufficient, so that the sewage treatment plant which does not reach the standard is urgently required to be upgraded and modified, the water environment pollution problem and the water resource shortage are solved, and the standard upgrading and modifying work of the sewage treatment plants in various places is more urgent. The land for upgrading and reconstructing the sewage plant is limited, so that the sewage treatment process for efficiently removing pollutants, which is environment-friendly, saves land and operation cost, is urgently needed.
In recent years, municipal sewage treatment relates to sewage upgrading transformation, and technologies such as a high-density sedimentation tank, a high-efficiency sedimentation tank, a sand-adding clarification tank and the like are applied to engineering.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the embodiment of the invention is to provide a magnetic coagulation high-efficiency rapid sedimentation purification device and process for municipal sewage treatment.
In order to solve the technical problems, the invention provides the following technical scheme:
a magnetic coagulation high-efficiency quick-settling purification device for municipal sewage treatment comprises a water distribution area, a water inlet area, a quick mixing area, a magnetic mixing area, a flocculation area, a high-efficiency quick-settling clarification purification area and a water outlet area which are sequentially connected through water holes, wherein a temporary sludge storage pool is arranged on one side of the high-efficiency quick-settling clarification purification area, a high-speed shearing machine, a residual sludge pump and a return sludge pump are arranged at the bottom in the temporary sludge storage pool, one side of the magnetic mixing area is connected with the high-speed shearing machine through a magnetic separator, a water inlet pipe is communicated with the water distribution area, and a water outlet pipe is communicated with the water outlet area;
the inside quick mixer that mixes that is provided with in fast mixed district, the inside magnetism that is provided with in the mixed district of magnetism mixes the mixer, the inside flocculation mixer that is provided with in flocculation district, the inside four arms mud scraper that is provided with in high-efficient fast settling clarification purification district, the inside water catch bowl and the pipe chute filler that still are provided with a plurality of alternative distributions in high-efficient fast settling clarification purification district, four arms mud scraper with through the pipe connection between the backward flow sludge pump.
As a further improvement of the invention: and the flowing of the sewage is realized by utilizing the height difference among the quick mixing area, the magnetic mixing area and the flocculation area.
As a further improvement of the invention: the quick mixing zone is provided with a PAC dosing device on the upper part, and the flocculation zone is provided with a PAM dosing device on the upper part.
As a further improvement of the invention: and a water inlet gate is arranged on the water passing hole between the water distribution area and the water inlet area, and a water outlet gate is arranged on the water passing hole between the high-efficiency quick-settling clarification and purification area and the water outlet area.
The magnetic coagulation high-efficiency rapid sedimentation purification process for municipal sewage treatment comprises the following steps:
1) the fast mixing stirrer adjusts the rotating speed through frequency conversion, fully stirs and mixes the sewage and the PAC agent added by the PAC agent adding device to form small flocs;
2) the small flocs flow into the magnetic mixing area along with water, the magnetic mixing stirrer adjusts the rotating speed through frequency conversion, the sewage with the small flocs flowing into the fast mixing area and the added magnetic powder are fully stirred and mixed, and the magnetic powder is wrapped by the small flocs to form crystal nuclei;
3) the flocculating agent feeding device comprises a flocculating region, a PAM dosing device, a flocculation stirrer, a magnetic powder crystal nucleus, a PAM dosing device, a magnetic powder crystal nucleus, a magnetic powder, a;
4) big floc is along with sewage flows in high-efficient rapid sedimentation clarification purification district, and the mud machine is scraped to four arms passes through the frequency conversion control rotational speed, scrapes mud concentration to the mud that gets down through high-efficient pipe chute filler high-efficient rapid sedimentation, and mud is collected through the backward flow sludge pump, and the rivers that purify through the clarification flow into the water catch bowl.
5) The water in the high-efficiency clarification purification tank flows into the water outlet area through the water outlet gate, and is discharged through the water outlet pipe after being buffered.
As a still further improvement of the invention: the rotating speed of the rapid mixing stirrer is 130-150rpm, the rotating speed of the magnetic mixing stirrer is 30-60rpm, and the rotating speed of the flocculation stirrer is 60-80 rpm.
As a still further improvement of the invention: and the outer edge linear speed of the four-arm mud scraper is less than or equal to 2 m/min.
Compared with the prior art, the invention has the beneficial effects that:
the invention has the advantages of small occupied area, simple structure, stable operation, high automation degree, high-efficiency quick-settling purification, good water outlet effect, low investment and operation cost, convenient management and the like, can efficiently remove pollutants such as total phosphorus, SS and the like, and has wide application prospect in the environment-friendly market.
Drawings
FIG. 1 is a top schematic view of a magnetic coagulation high-efficiency rapid sedimentation purification device for municipal sewage treatment.
FIG. 2 is a schematic view of the lower layer of a magnetic coagulation high-efficiency rapid sedimentation purification device for municipal sewage treatment.
FIG. 3 is a schematic sectional view of a magnetic coagulation high-efficiency rapid sedimentation purification device for municipal sewage treatment.
In the figure: 1-water distribution zone, 101-water inlet gate, 102-fast mixing stirrer, 103-magnetic mixing stirrer, 104-flocculation stirrer, 105-high speed shearing machine, 106-magnetic separator, 107-four-arm mud scraper, 108-water collecting tank, 109-inclined tube filler, 110-water outlet gate, 111-excess sludge pump, 112-reflux sludge pump, 113-sludge delivery pump, 114-PAC dosing device, 115-PAM dosing device, 116-mud collecting pit, 2-water inlet zone, 3-fast mixing zone, 4-magnetic mixing zone, 5-flocculation zone, 6-high efficiency fast settling clarification zone, 7-water outlet zone, 8-sludge temporary storage tank and 9-pump pit zone.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-3, the embodiment provides a magnetic coagulation high-efficiency rapid sedimentation purification device for municipal sewage treatment, which comprises a water distribution zone 1, a water inlet zone 2, a rapid mixing zone 3, a magnetic mixing zone 4, a flocculation zone 5, a high-efficiency rapid sedimentation clarification purification zone 6 and a water outlet zone 7 which are sequentially connected through water passing holes, wherein a pump pit zone 9 is arranged in front of the water inlet zone 2 and the rapid mixing zone 3, a sludge collecting pit 116 is arranged at the bottom of the high-efficiency rapid sedimentation clarification purification zone 6, a temporary sludge storage tank 8 is arranged at one side of the high-efficiency rapid sedimentation clarification purification zone 6, a high-speed shearing machine 105, a residual sludge pump 111 and a return sludge pump 112 are arranged at the inner bottom of the temporary sludge storage tank 8, one side of the magnetic mixing zone 4 is connected with the high-speed shearing machine 105 through a magnetic separator 106, the water distribution zone 1 is communicated with a water inlet pipe, the water outlet zone 7 is communicated with a water outlet pipe, a water passing hole between the water, the opening degree is controlled by the water inlet gate 101 to realize balanced water inlet, water prepared in the water distribution area 1 enters the water inlet area 2 to be primarily mixed, and the mixed water sequentially flows into the fast mixing area 3, the magnetic mixing area 4, the flocculation area 5, the high-efficiency fast settling clarification and purification area 6 and the water outlet area 7 through water passing holes;
the inside quick mixer 102 that is provided with in fast muddy district 3, the inside magnetism that is provided with in 4 that mixes of magnetism mixes mixer 103, the inside flocculation mixer 104 that is provided with in flocculation district 5, 6 inside four arms mud scraper 107 that are provided with in high-efficient fast settling clarification purification zone, 6 inside water catch bowl 108 and the pipe chute that still is provided with a plurality of alternate distributions in high-efficient fast settling clarification purification zone are filled 109, four arms mud scraper 107 with through the pipe connection between the backward flow sludge pump 112.
Further, a PAC dosing device 114 is arranged on the upper portion of the fast mixing zone 3, and a PAM dosing device 115 is arranged on the upper portion of the flocculation zone 5.
Furthermore, a water outlet gate 110 is arranged on the water through hole between the high-efficiency quick-settling clarification and purification area 6 and the water outlet area 7.
The embodiment also provides a magnetic coagulation high-efficiency rapid sedimentation purification process for municipal sewage treatment, which specifically comprises the following steps:
1. the fast mixing stirrer 102 adjusts the rotating speed through frequency conversion, adjusts the speed by 130-150rpm, and fully stirs and mixes the sewage and the PAC medicament added by the PAC medicament adding device 114 to form small flocs;
2. the small flocs flow into the magnetic mixing area 4 along with water, the speed of the magnetic mixer 103 is regulated by frequency conversion to 30-60rpm, the sewage with the small flocs flowing into the fast mixing area 3 is fully stirred and mixed with the added magnetic powder, and the magnetic powder is wrapped by the small flocs to form crystal nuclei for increasing the density of the flocs;
3. the floc with magnetic powder flows into the flocculation area 5 along with sewage, the flocculation stirrer 104 fully stirs and mixes the floc sewage with magnetic powder crystal nuclei flowing into the magnetic mixing area 4 and the flocculant added by the PAM dosing device 115 through frequency conversion regulation of the rotating speed at 60-80rpm, and the floc with magnetic powder crystal nuclei forms larger flocs through adsorption, electrical neutralization and mutual bridging, so that magnetic powder with ultrahigh sedimentation speed and specific gravity of 4.8-5.1 is formed, the sedimentation speed can be up to more than 40m/h, and sedimentation is accelerated;
4. the large flocs flow into the high-efficiency quick-settling clarification and purification zone 6 along with sewage, the four-arm sludge scraper 107 controls the rotating speed through frequency conversion, the outer edge linear speed is less than or equal to 2m/min, the rotating speed can be adjusted according to the actual generated sludge quantity, sludge subjected to blocking and high-efficiency quick-settling by the high-efficiency inclined tube packing 109 is scraped and concentrated, the sludge is collected by the return sludge pump 112, and the clarified and purified water flows into the water collection tank 108;
5. the water in the high-efficiency clarification purification tank flows into the water outlet area 7 through the water outlet gate 110, and is discharged through the water outlet pipe after being buffered.
In the embodiment, the sludge precipitated by the high-speed shearing machine 105 and the high-efficiency quick-settling clarification and purification area 6 in the system and concentrated by the return sludge pump 112 is conveyed to the high-speed shearing machine 105 through the special pipeline by the excess sludge pump 111, the coagulated flocs are decomposed and scattered again, strong shearing force is generated by a special flow channel and a high-speed rotating machine, magnetic powder in the flocs is in a free state, the magnetic powder flows into the magnetic separator 106, rare earth permanent magnets are adopted, the magnetic field intensity is more than 5000 gauss, the magnetic powder particles are sucked out from the sludge by utilizing the magnetic field and the magnetic permeability of the magnetic powder, the magnetic-containing sludge and the magnetic powder are separated and recovered, the purposes of reducing the loss rate of the magnetic powder and reducing the operation cost are achieved, the sludge flows into the sludge temporary storage tank 8 by self weight and is conveyed to a treatment device by the sludge conveying pump 113 for, the purpose of recovery is achieved, the recovery rate of magnetic powder can reach 99.5%, in addition, the magnetic powder, PAC and PAM medicament-containing sludge precipitated from the sludge collection pit 116 is conveyed to a magnetic powder area for recycling through a special pipeline by adopting a wear-resistant rubber pump through the return sludge pump 112, and the medicament cost is saved.
Example 2
Referring to fig. 1, in this embodiment, compared with embodiment 1, the magnetic coagulation high-efficiency fast settling purification device for municipal sewage treatment utilizes the height difference among the fast mixing zone 3, the magnetic mixing zone 4 and the flocculation zone 5 to realize the flow of sewage.
The embodiment of the invention has the advantages of small occupied area, simple structure, stable operation, high automation degree, high-efficiency quick-settling purification, good water outlet effect, low investment and operation cost, convenient management and the like, can efficiently remove pollutants such as total phosphorus, SS and the like, and has wide application prospect in the environment-friendly market.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. The magnetic coagulation high-efficiency quick-settling purification device for municipal sewage treatment is characterized by comprising a water distribution zone (1), a water inlet zone (2), a quick mixing zone (3), a magnetic mixing zone (4), a flocculation zone (5), a high-efficiency quick-settling clarification purification zone (6) and a water outlet zone (7) which are sequentially connected through water holes, wherein a temporary sludge storage tank (8) is arranged on one side of the high-efficiency quick-settling clarification purification zone (6), a high-speed shearing machine (105), a residual sludge pump (111) and a return sludge pump (112) are arranged at the bottom in the temporary sludge storage tank (8), one side of the magnetic mixing zone (4) is connected with the high-speed shearing machine (105) through a magnetic separator (106), a water inlet pipe is communicated with the water distribution zone (1), and a water outlet pipe is communicated with the water outlet zone (7);
mix district (3) inside fast and be provided with fast mixer (102), the inside magnetism that is provided with of magnetism mixed district (4) mixes mixer (103), flocculation district (5) inside flocculation mixer (104) that is provided with, clarification purification area (6) inside is provided with four arms mud scraper (107) to high-efficient fast, and clarification purification area (6) inside still is provided with a plurality of catch basins (108) and the pipe chute filler (109) that distribute in turn of sinking of high-efficient fast, four arms mud scraper (107) with through the pipe connection between backward flow sludge pump (112).
2. The magnetic coagulation high-efficiency rapid sedimentation purification device for municipal sewage treatment according to claim 1, wherein the flow of sewage is realized by utilizing the height difference among the rapid mixing zone (3), the magnetic mixing zone (4) and the flocculation zone (5).
3. The magnetic coagulation high-efficiency rapid sedimentation purification device for municipal sewage treatment according to claim 1, characterized in that a PAC dosing device (114) is arranged on the upper part of the rapid mixing zone (3), and a PAM dosing device (115) is arranged on the upper part of the flocculation zone (5).
4. The magnetic coagulation high-efficiency quick-settling purification device for municipal sewage treatment according to claim 1, wherein a water inlet gate (101) is arranged on a water passing hole between the water distribution area (1) and the water inlet area (2), and a water outlet gate (110) is arranged on a water passing hole between the high-efficiency quick-settling clarification purification area (6) and the water outlet area (7).
5. A magnetic coagulation high-efficiency rapid sedimentation purification process for municipal sewage treatment according to any one of claims 1 to 4, which comprises the following steps:
1) the fast mixing stirrer (102) fully stirs and mixes the sewage and the PAC medicament added by the PAC medicament adding device (114) through frequency conversion regulation of rotating speed to form small flocs;
2) the small flocs flow into the magnetic mixing area (4) along with water, the magnetic mixing stirrer (103) adjusts the rotating speed through frequency conversion, the sewage with the small flocs flowing into the fast mixing area (3) and the added magnetic powder are fully stirred and mixed, and the magnetic powder is wrapped by the small flocs to form crystal nuclei;
3) the floc with the magnetic powder flows into a flocculation area (5) along with sewage, a flocculation stirrer (104) fully stirs and mixes the floc sewage with the magnetic powder crystal nucleus flowing in a magnetic mixing area (4) and a flocculating agent added by a PAM dosing device (115) through frequency conversion and rotation speed adjustment, and the floc with the magnetic powder crystal nucleus forms larger flocs through adsorption, electrical neutralization and mutual bridging;
4) the large flocs flow into a high-efficiency quick-settling clarification and purification area (6) along with sewage, a four-arm sludge scraper (107) scrapes and concentrates sludge blocked by a high-efficiency inclined tube filler (109) and efficiently quickly settled by controlling the rotating speed through frequency conversion, the sludge is collected by a return sludge pump (112), and the clarified and purified water flows into a water collecting tank (108);
5) the water in the high-efficiency clarification purification tank flows into the water outlet area (7) through the water outlet gate (110), and is discharged through the water outlet pipe after being buffered.
6. The magnetic coagulation high-efficiency rapid sedimentation purification process for municipal sewage treatment according to claim 5, wherein the rotation speed of the rapid mixer (102) is 130-150rpm, the rotation speed of the magnetic mixer (103) is 30-60rpm, and the rotation speed of the flocculation mixer (104) is 60-80 rpm.
7. The magnetic coagulation high-efficiency rapid sedimentation purification process for municipal sewage treatment according to claim 5, wherein the outer edge linear speed of the four-arm mud scraper (107) is less than or equal to 2 m/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010188177.4A CN111186956A (en) | 2020-03-17 | 2020-03-17 | Magnetic coagulation efficient rapid sedimentation purification device and process for municipal sewage treatment |
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| CN202010188177.4A CN111186956A (en) | 2020-03-17 | 2020-03-17 | Magnetic coagulation efficient rapid sedimentation purification device and process for municipal sewage treatment |
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| CN113968608A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Self-circulation encrypted granular sludge filtering sedimentation tank |
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| CN113968608A (en) * | 2021-06-25 | 2022-01-25 | 北京绿恒科技有限公司 | Self-circulation encrypted granular sludge filtering sedimentation tank |
| CN113968608B (en) * | 2021-06-25 | 2023-07-18 | 北京绿恒科技有限公司 | Self-circulation encryption granular sludge filtering sedimentation tank |
| CN118458904A (en) * | 2024-06-14 | 2024-08-09 | 湖北万泉建设工程有限公司 | Municipal wastewater purification treatment system |
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