CN209759220U - Magnetic coagulation efficient precipitation system - Google Patents
Magnetic coagulation efficient precipitation system Download PDFInfo
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- CN209759220U CN209759220U CN201920166070.2U CN201920166070U CN209759220U CN 209759220 U CN209759220 U CN 209759220U CN 201920166070 U CN201920166070 U CN 201920166070U CN 209759220 U CN209759220 U CN 209759220U
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Abstract
A magnetic coagulation high-efficiency sedimentation system comprises a primary mixing tank, a secondary mixing tank, a tertiary mixing tank and a high-efficiency sedimentation tank; the primary mixing tank is provided with a first dosing device, the secondary mixing tank is provided with a magnetic powder feeding device, the tertiary mixing tank is provided with a second dosing device, and the primary mixing tank, the secondary mixing tank and the tertiary mixing tank are internally provided with stirring devices; the first-stage mixing tank is communicated with the upper part of the tank wall connected with the second-stage mixing tank, the second-stage mixing tank is communicated with the bottom of the tank wall connected with the third-stage mixing tank, and the third-stage mixing tank is communicated with the upper part of the tank wall connected with the high-efficiency sedimentation tank; a mud scraper is arranged at the bottom of the high-efficiency sedimentation tank, honeycomb fillers are also arranged in the high-efficiency sedimentation tank, and one end of each honeycomb filler is provided with a water retaining wall and is connected with the bottom of the water retaining wall; and a magnetic sludge separation device is arranged on the outer side of the high-efficiency sedimentation tank and is connected with the bottom of the high-efficiency sedimentation tank.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment is relevant, concretely relates to magnetism thoughtlessly congeals high-efficient sedimentation system.
Background
With the acceleration of the urbanization process of China, the discharge amount of domestic sewage and industrial wastewater is increasing day by day, which will aggravate the deterioration of water environment and seriously affect the physical and mental health of people. Nowadays, the investment for comprehensive treatment of water environment is continuously increased in various places, and the existing sewage treatment plants are upgraded and modified, new sewage treatment emergency projects are built, efficient water treatment devices are developed, and the like. In recent years, in the field of sewage treatment, particularly sewage upgrading, an efficient sedimentation tank is generally applied due to the advantages of large treatment capacity, strong impact resistance, stable operation and the like, and the improved magnetic coagulation efficient sedimentation tank is accepted by the market due to smaller occupied area and better treatment effect. The coagulating sedimentation method is a common method in sewage treatment, has the characteristics of large water treatment amount, low cost, simplicity, easiness in operation and the like, and has a very wide application range.
The magnetic coagulation sedimentation technology is that magnetic powder is synchronously added in the common coagulation sedimentation process to be flocculated and combined with pollutants into a whole so as to enhance the coagulation and flocculation effects and ensure that the generated floc has higher density and stronger performance, thereby achieving the purpose of high-speed sedimentation. The magnetic powder can be recycled through the magnetic drum. The residence time of the whole process is very short, so the probability of the anti-dissolution process of most pollutants including TP is very small, and in addition, the magnetic powder and the flocculating agent added in the system have good adsorption effect on bacteria, viruses, oil and various micro particles, so the removal effect on the pollutants is better than that of the traditional process. Meanwhile, due to the high-speed precipitation performance, compared with the traditional process, the method has the advantages of high speed, high efficiency, small occupied area, small investment and the like. However, the conventional coagulation method also has a very obvious disadvantage that the removal of nitrogen and phosphorus is difficult to achieve an ideal effect, and is also a problem which is concerned by the industry.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: in order to overcome the defects in the prior art, a magnetic coagulation high-efficiency precipitation system is provided.
The utility model provides a following technical scheme is adopted to its technical problem: a magnetic coagulation high-efficiency sedimentation system comprises a primary mixing tank, a secondary mixing tank, a tertiary mixing tank and a high-efficiency sedimentation tank; the primary mixing tank is provided with a first dosing device, the secondary mixing tank is provided with a magnetic powder feeding device, the tertiary mixing tank is provided with a second dosing device, and the primary mixing tank, the secondary mixing tank and the tertiary mixing tank are internally provided with stirring devices; the first-stage mixing tank is communicated with the upper part of the tank wall connected with the second-stage mixing tank, the second-stage mixing tank is communicated with the bottom of the tank wall connected with the third-stage mixing tank, and the third-stage mixing tank is communicated with the upper part of the tank wall connected with the high-efficiency sedimentation tank; a mud scraper is arranged at the bottom of the high-efficiency sedimentation tank, honeycomb fillers are also arranged in the high-efficiency sedimentation tank, and one end of each honeycomb filler is provided with a water retaining wall and is connected with the bottom of the water retaining wall; and a magnetic sludge separation device is arranged on the outer side of the high-efficiency sedimentation tank and is connected with the bottom of the high-efficiency sedimentation tank.
Further, the upper part of the magnetic sludge separation device is connected with a magnetic powder feeding device through a magnetic powder pipeline, and a sludge pipe is arranged at the bottom of the magnetic sludge separation device.
Further, the angle of the connection between the honeycomb filler and the bottom of the water retaining wall is 50 ~ 70 degrees.
Furthermore, a clean water tank is arranged on the outer side of one side of the tank wall of the high-efficiency sedimentation tank and is communicated with the upper part of the clean water tank.
Further, a coagulant PAC is put in the first dosing device.
Further, a coagulant aid PAM is put in the second dosing device.
The sewage enters a primary mixing tank of a treatment device after being primarily separated by a grid, a coagulant PAC is added into the primary mixing tank, the sewage and the recycled magnetic powder are fully mixed and then enter a secondary mixing tank, the secondary mixing tank is mixed and flocculated with recycled magnetic powder and returned sludge, then the sewage enters a tertiary mixing tank and reacts with a coagulant aid PAM added into the tertiary mixing tank to generate larger floc particles, and finally the sewage enters a sedimentation tank for rapid sedimentation, and the effluent enters the next treatment process. And returning part of the sludge precipitated by the sedimentation tank to the secondary mixing tank through a sludge reflux pump to continuously participate in the reaction, peeling the other part of the sludge through a high shear machine, recycling the magnetic powder in the magnetic drum, returning the recycled magnetic powder into the secondary mixing tank to continuously participate in the reaction, and returning the residual sludge into a subsequent sludge treatment system.
Has the advantages that: (1) the system has short retention time (15-20 minutes), occupies less land, is 1/5 of a collaborative sedimentation tank or dissolved air floatation, is 1/20 of the traditional sedimentation tank, and has low construction cost; saving medicament, low power and low operating cost.
(2) The recovery rate of magnetic powder is high (99.9%), and the loss rate of the magnetic powder is 70% lower than that of other separation systems; the water quantity and water quality change impact resistance is realized, and the water outlet index is stable; has outstanding water body purification effect on poor dosing flocculation and precipitation performance.
(3) In drinking water treatment, turbidity, color, total organic carbon (TOS), algae, particle count, bacteria and pathogens, cryptosporidium, iron oxide, manganese and arsenic removal rates exceed 90%.
(4) In the sewage treatment, the removal rate of the Total Suspended Solids (TSS), colloidal substances, total phosphorus, heavy metals, escherichia coli and the like reaches 90-99 percent; the removal rate of BOD, COD and the like reaches 60-80 percent.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described with reference to the accompanying drawings.
A magnetic coagulation high-efficiency sedimentation system comprises a first-stage mixing tank 1, a second-stage mixing tank 2, a third-stage mixing tank 3 and a high-efficiency sedimentation tank 4; a first dosing device 5 is arranged on the first-stage mixing tank 1, a magnetic powder feeding device 6 is arranged on the second-stage mixing tank 2, a second dosing device 7 is arranged on the third-stage mixing tank 3, and stirring devices 8 are arranged in the first-stage mixing tank 1, the second-stage mixing tank 2 and the third-stage mixing tank 3; the first-stage mixing tank 1 is communicated with the upper part of the tank wall connected with the second-stage mixing tank 2, the second-stage mixing tank 2 is communicated with the bottom part of the tank wall connected with the third-stage mixing tank 3, and the third-stage mixing tank 3 is communicated with the upper part of the tank wall connected with the high-efficiency sedimentation tank 4; a mud scraper 9 is arranged at the bottom of the high-efficiency sedimentation tank 4, a honeycomb filler 10 is also arranged in the high-efficiency sedimentation tank 4, and a water retaining wall 11 is arranged at one end of the honeycomb filler 10 and is connected with the bottom of the water retaining wall 11; the outside of the high-efficiency sedimentation tank 4 is provided with a magnetic sludge separation device 12 which is connected with the bottom of the high-efficiency sedimentation tank 4.
The upper part of the magnetic sludge separation device 12 is connected with the magnetic powder feeding device 6 through a magnetic powder pipeline 13, and the bottom of the magnetic sludge separation device 12 is provided with a sludge pipe 14.
The connection angle of the honeycomb filler 10 and the bottom of the water retaining wall 11 is 50 ~ 70 degrees.
And a clean water tank 15 is arranged on the outer side of one side tank wall of the high-efficiency sedimentation tank 4 and is communicated with the upper part of the clean water tank 15.
And a coagulant PAC is put in the first dosing device 5.
And a coagulant aid PAM is put in the second dosing device 7.
Claims (6)
1. A magnetic coagulation efficient sedimentation system is characterized by comprising a primary mixing tank, a secondary mixing tank, a tertiary mixing tank and an efficient sedimentation tank; the primary mixing tank is provided with a first dosing device, the secondary mixing tank is provided with a magnetic powder feeding device, the tertiary mixing tank is provided with a second dosing device, and the primary mixing tank, the secondary mixing tank and the tertiary mixing tank are internally provided with stirring devices; the first-stage mixing tank is communicated with the upper part of the tank wall connected with the second-stage mixing tank, the second-stage mixing tank is communicated with the bottom of the tank wall connected with the third-stage mixing tank, and the third-stage mixing tank is communicated with the upper part of the tank wall connected with the high-efficiency sedimentation tank; a mud scraper is arranged at the bottom of the high-efficiency sedimentation tank, honeycomb fillers are also arranged in the high-efficiency sedimentation tank, and one end of each honeycomb filler is provided with a water retaining wall and is connected with the bottom of the water retaining wall; and a magnetic sludge separation device is arranged on the outer side of the high-efficiency sedimentation tank and is connected with the bottom of the high-efficiency sedimentation tank.
2. The magnetic coagulation high-efficiency sedimentation system as claimed in claim 1, wherein the upper part of the magnetic sludge separation device is connected with a magnetic powder feeding device through a magnetic powder pipeline, and a sludge pipe is arranged at the bottom of the magnetic sludge separation device.
3. The efficient magnetic coagulation sedimentation system as claimed in claim 1, wherein the angle at which the honeycomb filler is connected to the bottom of the waterwall is 50 ~ 70 degrees.
4. The efficient magnetic coagulation sedimentation system as claimed in claim 1, wherein a clean water tank is provided outside one side tank wall of the efficient sedimentation tank and is communicated with the upper part of the clean water tank.
5. The efficient magnetic coagulation sedimentation system according to claim 1, wherein a coagulant PAC is dosed in the first dosing device.
6. The magnetic coagulation high-efficiency sedimentation system as claimed in claim 1, wherein a coagulant aid PAM is added to the second dosing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920166070.2U CN209759220U (en) | 2019-01-30 | 2019-01-30 | Magnetic coagulation efficient precipitation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920166070.2U CN209759220U (en) | 2019-01-30 | 2019-01-30 | Magnetic coagulation efficient precipitation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209759220U true CN209759220U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920166070.2U Active CN209759220U (en) | 2019-01-30 | 2019-01-30 | Magnetic coagulation efficient precipitation system |
Country Status (1)
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| CN (1) | CN209759220U (en) |
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2019
- 2019-01-30 CN CN201920166070.2U patent/CN209759220U/en active Active
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