CN220335015U - Sewage treatment system with secondary dosing precipitation function - Google Patents
Sewage treatment system with secondary dosing precipitation function Download PDFInfo
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- CN220335015U CN220335015U CN202322293103.9U CN202322293103U CN220335015U CN 220335015 U CN220335015 U CN 220335015U CN 202322293103 U CN202322293103 U CN 202322293103U CN 220335015 U CN220335015 U CN 220335015U
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- 239000010865 sewage Substances 0.000 title claims abstract description 59
- 238000001556 precipitation Methods 0.000 title claims abstract description 55
- 230000003647 oxidation Effects 0.000 claims abstract description 57
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000005352 clarification Methods 0.000 claims abstract description 41
- 238000005345 coagulation Methods 0.000 claims abstract description 34
- 230000015271 coagulation Effects 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000005189 flocculation Methods 0.000 claims abstract description 27
- 230000016615 flocculation Effects 0.000 claims abstract description 27
- 238000009300 dissolved air flotation Methods 0.000 claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000000084 colloidal system Substances 0.000 claims abstract description 18
- 238000005842 biochemical reaction Methods 0.000 claims abstract description 10
- 239000010802 sludge Substances 0.000 claims description 51
- 238000000926 separation method Methods 0.000 claims description 15
- 230000033228 biological regulation Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 230000020477 pH reduction Effects 0.000 claims description 4
- 239000000701 coagulant Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 2
- 230000000813 microbial effect Effects 0.000 abstract description 6
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 238000006731 degradation reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides a sewage treatment system with a secondary dosing and precipitation function, which at least comprises: the device comprises a dosing device, a flocculation and precipitation integrated device, a dissolved air flotation device, an ozone pre-oxidation tank, a coagulation reaction tank, a high-efficiency clarification tank, an ozone secondary oxidation tank and an A/O biochemical reaction tank; wherein: the coagulation reaction tank is connected with the efficient clarification tank, and the oily water after coagulation treatment is input into the efficient clarification tank for clarification, so that colloid particles separated out by ozone oxidation are removed; and the high-efficiency clarifying tank inputs the precipitated and clarified oily water into the ozone secondary oxidation tank. According to the utility model, the coagulation reaction tank and the high-efficiency clarification tank are additionally arranged in the sewage treatment system, so that colloid particles separated out by ozone oxidation can be effectively removed, the degradation of microbial activity caused by the fact that the colloid particles enter a biochemical system is avoided, and meanwhile, the biochemical treatment difficulty can be reduced.
Description
Technical Field
The utility model relates to the technical field of oil sewage treatment, in particular to the technical field of carbon source addition of oil sewage.
Background
The oil depot sewage mainly comes from condensate water generated by heating of an oil tank, oil sewage generated by cutting of the oil tank, boiler sewage, initial rainwater in a tank area and ship oil sewage, wherein the oil depot sewage is mostly the ship oil sewage. Because the water quality of the wastewater is complex and changeable, the pretreatment effect of ozone early-stage oxidation on the wastewater is obvious, but a large amount of foam is separated out (a surfactant is indicated) in the early stage of the oxidation process, after a period of time, the foam is digested, gray black colloid particles are separated out, and the wastewater becomes turbid. These precipitated colloidal particles enter the biochemical tank and cannot be degraded by microorganisms, so that accumulation is caused, and the microbial activity is deteriorated.
Therefore, the problems of secondary deterioration of water quality and deterioration of microbial activity caused by the fact that colloidal particles are precipitated and deposited in a large amount after the oily water is oxidized by ozone and the colloidal particles enter a biochemical system become the technical problems to be solved in the oil pollution field.
Disclosure of Invention
The utility model aims to provide a sewage treatment system with a secondary dosing and precipitation function, which is used for removing colloid particles separated out by ozone oxidation in sewage treatment, avoiding the deterioration of microbial activity caused by the fact that the colloid particles enter a biochemical system, and reducing the difficulty of biochemical treatment.
The utility model provides a sewage treatment system with a secondary dosing and precipitation function, which at least comprises: the device comprises a dosing device, a flocculation and precipitation integrated device, a dissolved air flotation device, an ozone pre-oxidation tank, a coagulation reaction tank, a high-efficiency clarification tank, an ozone secondary oxidation tank and an A/O biochemical reaction tank; wherein: the dosing device is respectively connected with the flocculation and precipitation integrated device and the dissolved air flotation device and is used for adding coagulant into the flocculation and precipitation integrated device and the dissolved air flotation device; the flocculation and precipitation integrated device is respectively connected with the oil separation and regulation tank and the dissolved air flotation device, and the oily water flows into the flocculation and precipitation integrated device through the oil separation and regulation tank, and flows into the dissolved air flotation device after being subjected to flocculation and precipitation through the flocculation and precipitation integrated device; the dissolved air flotation device is connected with the ozone pre-oxidation tank, and the oily water after dissolved air flotation treatment is input into the ozone pre-oxidation tank for pre-oxidation treatment; the ozone pre-oxidation tank is connected with the ozone generator and the coagulation reaction tank, and the pre-oxidized oily water is input into the coagulation reaction tank for coagulation treatment; the coagulation reaction tank is connected with the efficient clarification tank, and the oily water after coagulation treatment is input into the efficient clarification tank for clarification, so that colloid particles separated out by ozone oxidation are removed; the high-efficiency clarifying tank inputs the precipitated and clarified oily water into the ozone secondary oxidation tank; and the ozone secondary oxidation tank performs secondary oxidation treatment on the received oily water and inputs the oily water into the A/O biochemical reaction tank.
In an embodiment of the present utility model, the coagulation reaction tank includes a tank body, and a water inlet disposed on the tank body; a partition plate is arranged in the tank body, and divides the internal space of the tank body into a first tank body space, a second tank body space and a third tank body space which is communicated with the first tank body space and the second tank body space; the first groove body space and the third groove body space are arranged side by side, and stirrers are respectively arranged in the first groove body space and the third groove body space.
In an embodiment of the utility model, the bottom of the tank body is provided with a supporting frame, the tank body is also provided with a medicine adding port, and the bottom of the tank body is also provided with a mud discharging port.
In an embodiment of the utility model, the efficient clarification tank comprises a tank body, a transmission pipeline for inputting the oily sewage in the coagulation reaction tank into the tank body, a stirring pump for stirring the oily sewage in the tank body, a plurality of inclined plates arranged in parallel in the tank body, a sludge discharge port arranged at the bottom of the tank body and a water outlet arranged on the tank body, wherein the inclined plates are used for separating greasy dirt impurities in the oily sewage.
In an embodiment of the present utility model, a gas washing device is disposed above the inclined plate, and the greasy dirt impurities on the inclined plate are removed by gas to prevent blockage.
In an embodiment of the utility model, the efficient clarification tank further comprises a sludge hopper arranged at the bottom of the inclined plate and a sludge scraper.
In an embodiment of the utility model, the efficient clarification tank further comprises a mud suction pump connected with the mud collecting hopper and the mud discharging port respectively, and used for sucking mud and discharging mud; or the sludge collecting hopper is connected with the sludge discharge port, and the high-efficiency clarification tank discharges sludge in a self-flowing mode through the sludge discharge port.
In one embodiment of the present utility model, the a/O biochemical reaction tank includes a hydrolytic acidification tank, a contact oxidation tank, a secondary sedimentation tank and a monitoring tank which are connected in sequence.
In an embodiment of the utility model, the flocculation and precipitation integrated device, the dissolved air flotation device, the efficient clarification tank, the contact oxidation tank and the secondary sedimentation tank are connected with a sludge tank, and sludge or sewage slag is discharged into the sludge tank.
In one embodiment of the utility model, the sludge tank is connected with a sludge dewatering system, and the sludge dewatering system is connected with the oil separation regulation tank and returns the generated oil sewage to the oil separation regulation tank.
As described above, the sewage treatment system with the secondary dosing and precipitation functions has the following beneficial effects:
according to the utility model, the coagulation reaction tank and the high-efficiency clarification tank are additionally arranged in the sewage treatment system, so that colloid particles separated out by ozone oxidation can be effectively removed, the degradation of microbial activity caused by the fact that the colloid particles enter a biochemical system is avoided, and meanwhile, the biochemical treatment difficulty can be reduced. In addition, the utility model has simple structure, convenient operation and higher practicability.
Drawings
Fig. 1 is a schematic diagram showing the overall structure of a sewage treatment system with a secondary dosing and precipitation function in the present application.
Fig. 2 is a schematic structural diagram of a coagulation reaction tank and a high-efficiency clarification tank in the sewage treatment system with the secondary dosing and precipitation functions in the application.
Description of element reference numerals
100. Sewage treatment system with secondary dosing and precipitation functions
101. Flocculation and precipitation integrated device
102. Medicine adding device
103. Dissolved air floatation device
104. Ozone generator
105. Ozone preoxidation tank
106. Coagulation reaction tank
106a groove body
106b, 106c dosing port
106d, 106e water inlet
106f, 106g sludge discharge port
106h, 106i stirrer
107. High-efficiency clarification tank
107a pool body
107b stirring pump
107c sloping plate
107d guide door
107e mud pipe
107f, 107g water outlet
107h transmission pipeline
108. Ozone secondary oxidation pond
109. Hydrolytic acidification tank
110. Contact oxidation pond
111. Oil separation regulating reservoir
112. Sludge dewatering system
113. Sludge pool
114. Secondary sedimentation tank
115. Monitoring pool
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 and 2. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
An object of this embodiment is to provide a sewage treatment system with secondary dosing precipitation function for get rid of the colloid particulate matter that ozone oxidation separated in the sewage treatment, avoid colloid particulate matter to get into biochemical system and lead to microorganism activity variation, also can reduce the biochemical treatment degree of difficulty simultaneously.
The principle and implementation of a sewage treatment system with a secondary dosing and precipitation function according to this embodiment will be described in detail below, so that those skilled in the art can understand a sewage treatment system with a secondary dosing and precipitation function according to this embodiment without creative labor.
In this embodiment, a sewage treatment system with a secondary dosing and precipitation function is provided, and fig. 1 is a schematic structural diagram of the sewage treatment system with the secondary dosing and precipitation function in this embodiment. As shown in fig. 1, the present embodiment provides a sewage treatment system 100 with a secondary dosing and precipitation function, at least including: the device comprises a dosing device 102, a flocculation precipitation integrated device 101, a dissolved air flotation device 103, an ozone pre-oxidation tank 105, a coagulation reaction tank 106, a high-efficiency clarification tank 107, an ozone secondary oxidation tank 108 and an A/O biochemical reaction tank.
The structure of the sewage treatment system 100 having the secondary chemical precipitation function of the present embodiment will be specifically described below.
In this embodiment, the chemical adding device 102 is connected to the flocculation and precipitation integrated device 101 and the dissolved air flotation device 103, respectively, and is used for adding a coagulant into the flocculation and precipitation integrated device 101 and the dissolved air flotation device 103; the flocculation and precipitation integrated device 101 is respectively connected with an oil separation and regulation tank 111 and the dissolved air flotation device 103, and oil sewage flows into the flocculation and precipitation integrated device 101 through the oil separation and regulation tank 111, and flows into the dissolved air flotation device 103 after flocculation and precipitation by the flocculation and precipitation integrated device 101; the dissolved air floatation device 103 is connected with the ozone pre-oxidation tank 105, and the oil sewage subjected to dissolved air floatation treatment is input into the ozone pre-oxidation tank 105 for pre-oxidation treatment; the ozone pre-oxidation tank 105 is connected with the ozone generator 104 and the coagulation reaction tank 106, and the pre-oxidized oily water is input into the coagulation reaction tank 106 for coagulation treatment; the coagulation reaction tank 106 is connected with the efficient clarification tank 107, and is used for inputting the oily water subjected to coagulation treatment into the efficient clarification tank 107 for clarification, and removing colloid particles separated out by ozone oxidation; the high-efficiency clarifying tank 107 inputs the precipitated and clarified oily water into the ozone secondary oxidation tank 108; the ozone secondary oxidation tank 108 performs secondary oxidation treatment on the received oily water, and inputs the oily water into the A/O biochemical reaction tank.
The problem of large deposition of precipitated colloid particles in ozone oxidation causes secondary deterioration of water quality and affects the operation of subsequent processes, so that a primary chemical dosing clarification process is added between an ozone oxidation tank and an ozone secondary oxidation tank in the embodiment. Specifically, a high-efficiency clarifier 107 and a coagulation reaction tank 106 are additionally arranged on the process pipeline.
The sewage treatment system 100 with the secondary dosing and precipitation function in this embodiment forms a treatment process flow of dosing, flocculation precipitation, dissolved air flotation, ozone pre-oxidation, coagulation and high-efficiency clarification, ozone secondary oxidation and A/O biochemistry.
As shown in fig. 2, in this embodiment, the coagulation-reaction tank 106 includes a tank body 106a, and water inlets disposed on the tank body 106a, preferably, the number of water inlets is two: a water inlet 106d and a water inlet 106e; a partition plate is arranged in the tank body 106a, and divides the internal space of the tank body 106a into a first tank body space, a second tank body space and a third tank body space which is communicated with the first tank body space and the second tank body space; the first tank space and the third tank space are arranged side by side, and a stirrer 106h and a stirrer 106i are respectively arranged in the first tank space and the third tank space.
In this embodiment, a support frame is disposed at the bottom of the tank body 106a, a dosing port 106b and a dosing port 106c are further disposed on the tank body 106a, and two sludge discharge ports are further disposed at the bottom of the tank body 106 a: a sludge discharge port 106f and a sludge discharge port 106g.
As shown in fig. 2, in this embodiment, the high-efficiency clarifier 107 includes a pool body 107a, and a guide gate 107d disposed on the pool body 107 a. The guide door 107d is used for internal maintenance, when the efficient clarification tank 107 has an operation fault, the guide door 107d is opened, and maintenance personnel can enter the efficient clarification tank 107. The oil sewage in the coagulation reaction tank 106 is input into a transmission pipeline 107h in the tank body 107a, a stirring pump 107b for stirring the oil sewage in the tank body 107a, a plurality of inclined plates 107c arranged in parallel in the tank body 107a for separating oil contamination impurities in the oil sewage, a sludge discharge port arranged at the bottom of the tank body 107a, and water outlets arranged on the tank body 107a, preferably, the number of the water outlets is two: a water outlet 107f and a water outlet 107g.
That is, in this embodiment, the coagulation-reaction tank 106 has two water inlets: a water inlet 106d and a water inlet 106e, the high-efficiency clarifier 107 has two water outlets: the water outlet 107f and the water outlet 107g can be blocked by a blind plate for standby. Thus, in the whole flow node of the whole oil sewage treatment, 2 nodes can act instead of one node, so that more proper nodes can be selected for operation at a later stage.
In addition, in this embodiment, a gas washing device is disposed above the inclined plate 107c, and the greasy dirt and impurities on the inclined plate 107c are removed by gas to prevent clogging. The structure of the air washing device is not particularly limited, and the air washing device may have a function of blowing air to the inclined plate 107c and cleaning.
In this embodiment, the high-efficiency clarifier 107 further includes a sludge hopper disposed at the bottom of the inclined plate 107c, a sludge scraper, and a sludge discharge pipe 107e extending from the sludge discharge port; the high-efficiency clarification tank 107 further comprises a mud suction pump connected with the mud collecting hopper and the mud discharging port respectively, and the mud suction pump is used for sucking mud and discharging mud, so that mud is discharged from the bottom of the high-efficiency clarification tank 107. Or the sludge collecting hopper is connected with the sludge discharge port, and the high-efficiency clarification tank 107 discharges sludge in a self-flowing mode through the sludge discharge port.
In the embodiment, a plurality of lengthened parallel inclined plates 107c are arranged in a precipitation separation area of the high-efficiency clarification tank 107, and the efficiency is 1.5-2 times higher than that of a conventional inclined tube; each inclined plate 107c adopts equipotential linear water distribution and synchronous water collection, the separation area of the inclined plate 107c has no dead angle and vortex, and each point is in an equal-load running state, so that the high-efficiency clarification effect of low-turbidity water is ensured; and the inclined plate 107c is not blocked by the air washing device, the sludge collecting hopper is provided with a sludge scraper, sludge is discharged by adopting a pump, the sludge is discharged smoothly or in a self-flowing mode under the condition of permission.
The sewage treatment system 100 with the secondary dosing and precipitation function of the embodiment can effectively remove colloid particles separated out by ozone oxidation by additionally arranging the coagulation reaction tank 106 and the efficient clarification tank 107 in the sewage treatment system, avoid the degradation of microbial activity caused by the fact that the colloid particles enter a biochemical system, and reduce the difficulty of biochemical treatment.
In this embodiment, the a/O biochemical reaction tank includes a hydrolytic acidification tank 109, a contact oxidation tank 110, a secondary sedimentation tank 114 and a monitoring tank 115, which are sequentially connected. The monitoring pool 115 is also connected with an ozone secondary oxidation pool, and water which does not reach the standard is returned to the ozone secondary oxidation pool, so that water which reaches the standard is discharged.
In this embodiment, the flocculation and precipitation integrated device 101, the dissolved air flotation device 103, the efficient clarifier 107, the contact oxidation tank 110 and the secondary sedimentation tank 114 are connected to a sludge tank 113, and sludge or sludge is discharged into the sludge tank 113.
In addition, in the present embodiment, the sludge tank 113 is connected to a sludge dewatering system 112, and the sludge dewatering system 112 is connected to the oil separation tank 111, so that the generated oil sewage is returned to the oil separation tank 111.
In summary, the coagulation reaction tank and the high-efficiency clarification tank are additionally arranged in the sewage treatment system, so that colloid particles separated out by ozone oxidation can be effectively removed, the situation that the activity of microorganisms is poor due to the fact that the colloid particles enter a biochemical system is avoided, and meanwhile, the difficulty of biochemical treatment can be reduced. In addition, the utility model has simple structure, convenient operation and higher practicability. Therefore, the utility model effectively overcomes the defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A sewage treatment system with secondary dosing and precipitation functions, which is characterized by at least comprising: the device comprises a dosing device, a flocculation and precipitation integrated device, a dissolved air flotation device, an ozone pre-oxidation tank, a coagulation reaction tank, a high-efficiency clarification tank, an ozone secondary oxidation tank and an A/O biochemical reaction tank; wherein:
the dosing device is respectively connected with the flocculation and precipitation integrated device and the dissolved air flotation device and is used for adding coagulant into the flocculation and precipitation integrated device and the dissolved air flotation device;
the flocculation and precipitation integrated device is respectively connected with the oil separation and regulation tank and the dissolved air flotation device, and the oily water flows into the flocculation and precipitation integrated device through the oil separation and regulation tank, and flows into the dissolved air flotation device after being subjected to flocculation and precipitation through the flocculation and precipitation integrated device;
the dissolved air flotation device is connected with the ozone pre-oxidation tank, and the oily water after dissolved air flotation treatment is input into the ozone pre-oxidation tank for pre-oxidation treatment;
the ozone pre-oxidation tank is connected with the ozone generator and the coagulation reaction tank, and the pre-oxidized oily water is input into the coagulation reaction tank for coagulation treatment;
the coagulation reaction tank is connected with the efficient clarification tank, and the oily water after coagulation treatment is input into the efficient clarification tank for clarification, so that colloid particles separated out by ozone oxidation are removed;
the high-efficiency clarifying tank inputs the precipitated and clarified oily water into the ozone secondary oxidation tank;
and the ozone secondary oxidation tank performs secondary oxidation treatment on the received oily water and inputs the oily water into the A/O biochemical reaction tank.
2. The sewage treatment system with the secondary dosing and precipitation function according to claim 1, wherein: the coagulation reaction tank comprises a tank body and a water inlet arranged on the tank body; a partition plate is arranged in the tank body, and divides the internal space of the tank body into a first tank body space, a second tank body space and a third tank body space which is communicated with the first tank body space and the second tank body space; the first groove body space and the third groove body space are arranged side by side, and stirrers are respectively arranged in the first groove body space and the third groove body space.
3. The sewage treatment system with the secondary dosing and precipitation function according to claim 2, wherein: the bottom of the tank body is provided with a supporting frame, the tank body is also provided with a medicine adding port, and the bottom of the tank body is also provided with a mud discharging port.
4. The sewage treatment system with the secondary dosing and precipitation function according to claim 1, wherein: the efficient clarification tank comprises a tank body, a transmission pipeline for inputting the oily sewage in the coagulation reaction tank into the tank body, a stirring pump for stirring the oily sewage in the tank body, a plurality of inclined plates arranged in parallel in the tank body, an oil pollution impurity separating device for separating the oily sewage, a mud discharging port arranged at the bottom of the tank body, and a water outlet arranged on the tank body.
5. The sewage treatment system with the secondary dosing and precipitation function according to claim 4, wherein: and an air washing device is arranged above the inclined plate, and oil dirt impurities on the inclined plate are removed through air to prevent blockage.
6. The sewage treatment system with the secondary dosing and precipitation function according to claim 4, wherein: the efficient clarification tank also comprises a sludge collecting hopper arranged at the bottom of the inclined plate and a sludge scraper.
7. The sewage treatment system with the secondary dosing and precipitation function according to claim 6, wherein: the high-efficiency clarification tank also comprises a mud suction pump which is respectively connected with the mud collecting hopper and the mud discharging port and is used for sucking mud and discharging mud; or the sludge collecting hopper is connected with the sludge discharge port, and the high-efficiency clarification tank discharges sludge in a self-flowing mode through the sludge discharge port.
8. The sewage treatment system with the secondary dosing and precipitation function according to claim 1, wherein: the A/O biochemical reaction tank comprises a hydrolytic acidification tank, a contact oxidation tank, a secondary sedimentation tank and a monitoring tank which are connected in sequence.
9. The sewage treatment system with the secondary dosing and precipitation function according to claim 8, wherein: the flocculation and precipitation integrated device, the dissolved air flotation device, the efficient clarification tank, the contact oxidation tank and the secondary sedimentation tank are connected with a sludge tank, and sludge or sewage slag is discharged into the sludge tank.
10. The sewage treatment system with the secondary dosing and precipitation function according to claim 9, wherein: the sludge tank is connected with a sludge dewatering system, the sludge dewatering system is connected with the oil separation regulation and storage tank, and the generated oil sewage is returned to the oil separation regulation and storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293103.9U CN220335015U (en) | 2023-08-24 | 2023-08-24 | Sewage treatment system with secondary dosing precipitation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322293103.9U CN220335015U (en) | 2023-08-24 | 2023-08-24 | Sewage treatment system with secondary dosing precipitation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220335015U true CN220335015U (en) | 2024-01-12 |
Family
ID=89458143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322293103.9U Active CN220335015U (en) | 2023-08-24 | 2023-08-24 | Sewage treatment system with secondary dosing precipitation function |
Country Status (1)
| Country | Link |
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| CN (1) | CN220335015U (en) |
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2023
- 2023-08-24 CN CN202322293103.9U patent/CN220335015U/en active Active
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