CN108996850B - Multidirectional flow biological filter device - Google Patents
Multidirectional flow biological filter device Download PDFInfo
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- CN108996850B CN108996850B CN201811058284.4A CN201811058284A CN108996850B CN 108996850 B CN108996850 B CN 108996850B CN 201811058284 A CN201811058284 A CN 201811058284A CN 108996850 B CN108996850 B CN 108996850B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 157
- 238000005273 aeration Methods 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims description 43
- 239000002245 particle Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 abstract description 26
- 239000010865 sewage Substances 0.000 abstract description 10
- 239000007787 solid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002344 surface layer Substances 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 25
- 238000011010 flushing procedure Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005352 clarification Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a multidirectional flow biological filter device which comprises a primary filter, a secondary filter, a tertiary filter, an aeration device, a back flush air inlet device and a back flush water inlet device, wherein the primary filter is arranged on the primary filter; compared with the traditional urban water treatment equipment, the invention has more reasonable structure, each filter tank is convenient for integrated design, the occupied area is small, and the transportation is convenient; the invention has obvious treatment effect on Suspended Solids (SS), has biological treatment function and filtering and intercepting functions, has wide sewage containing space, solves the problem of large filtering resistance caused by surface layer filtering of the traditional water treatment equipment, has high efficiency and low energy, and saves capital cost and running cost; the processing flow is simplified, and operators can easily manage and operate.
Description
Technical Field
The invention relates to the field of water treatment equipment, in particular to a multi-directional flow biological filtering device.
Background
In recent decades, with the development of modern industry and urban construction, the urban water pollution problem is serious, but in the current water pollution treatment field, the urban sewage treatment plant which is operated currently basically adopts the traditional activated sludge method and the deformation process thereof, the oxidation ditch process, the A-B process, the SBR process and the like; the process has the defects of large occupied area, high capital investment, low treatment load, slow operation start, frequent sludge expansion, incapability of bearing impact load and the like, and meanwhile, the process equipment has low treatment efficiency and high energy consumption, and cannot meet the requirements of high efficiency and low energy.
Meanwhile, the existing more biological aerated filters adopt upward flow state of water, the upward flow capacity for receiving sewage is large, but the water quality of the discharged water is slightly poor; if the aeration biological filter adopts downward flow filtration, the air prevents water flow to a certain extent from bringing solid matters in sewage into the depth of the filter bed, so that the solid matters are accumulated on the surface layer of the filter, and the filter is easy to be blocked.
In order to solve the problem of the traditional unidirectional fluidization biological aerated filter and simultaneously meet the high-efficiency low-energy requirement of water treatment equipment, a novel water treatment equipment is developed, and the novel water treatment equipment has very important significance for environmental protection and national economy.
Disclosure of Invention
The invention aims to provide a multidirectional flow biological filter device, which adopts upward flow and downward flow filtration at the same time, solves the problem of surface layer filtration of downward flow in the traditional biological aerated filter, meets the requirements of high efficiency and low consumption of water treatment equipment, saves cost, and is convenient to transport and operate.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a multi-directional flow biological filtration device comprising:
the filter comprises a primary filter, wherein the lower part of the primary filter is connected with a water inlet pipe, the middle part of the primary filter is a filter material supported by a supporting layer, and filter heads are uniformly distributed on the surface of the supporting layer; the top of the primary filter tank is provided with a primary overflow weir, the adjacent side of the top of the primary filter tank is provided with a collecting tank, the inside of the collecting tank is divided into a primary backwash collecting tank and a drainage collecting tank by a partition plate, the height of the partition plate is lower than the height of the tank wall of the collecting tank, and the primary overflow weir is communicated with the primary backwash collecting tank; the bottom of the primary backwash collecting water tank is connected with a primary backwash drain pipe with a valve;
the middle part of the secondary filter tank is provided with a filter material supported by a supporting layer, and filter heads are uniformly distributed on the surface of the supporting layer; the upper part of the secondary filter tank is provided with a water distribution pipe which is communicated with the bottom of the drainage collecting tank; the top of the secondary filter tank is provided with a secondary overflow weir, the adjacent side of the top of the secondary filter tank is provided with a secondary backwash collecting water tank, the secondary overflow weir is communicated with the secondary backwash collecting water tank, and the bottom of the secondary backwash collecting water tank is connected with a secondary backwash drain pipe with a valve;
the lower part of the three-stage filter tank is connected with a water outlet pipe, the middle part of the three-stage filter tank is provided with a filter material supported by a supporting layer, and filter heads are uniformly distributed on the surface of the supporting layer; the upper part of the three-stage filter is provided with a water distribution pipe, the water distribution pipe of the three-stage filter is connected with the water outlet end of the pressurizing suction pump, and the water inlet end of the pressurizing suction pump is connected with the lower part of the secondary filter; the top of the three-stage filter tank is provided with a three-stage overflow weir, the adjacent side of the top of the three-stage filter tank is provided with a three-stage backwash collecting water tank, the three-stage overflow weir is communicated with the three-stage backwash collecting water tank, and the bottom of the three-stage backwash collecting water tank is connected with a three-stage backwash drain pipe;
the aeration device comprises a primary air blower which is connected with aeration pipes arranged at the bottom of a filter material of the primary filter tank and the bottom of a filter material of the secondary filter tank through valves respectively;
the back flush water inlet device comprises a back flush water inlet pipe which is respectively communicated with the lower parts of the primary filter tank, the secondary filter tank and the tertiary filter tank through valves;
the back flush air inlet device comprises a second-level air blower, and the second-level air blower is communicated with the lower parts of the first-level filter tank, the second-level filter tank and the third-level filter tank through a valve and a back flush air inlet pipe respectively.
Further, deep tree-shaped water inlet pipes are uniformly distributed in the filter material of the secondary filter and the filter material of the tertiary filter, the deep tree-shaped water inlet pipes of the secondary filter are connected with the water distribution pipe at the upper part of the secondary filter through valves, and the deep tree-shaped water inlet pipes of the tertiary filter are connected with the water distribution pipe at the upper part of the tertiary filter through valves.
Further, single-hole aerators are uniformly distributed on the surface of the aerator pipe.
Further, the particle size of the filter materials in the primary filter tank and the secondary filter tank is 3-5mm; the particle size of the filter material in the three-stage filter tank is 2-4mm.
Further, the primary filter tank, the secondary filter tank and the tertiary filter tank are sequentially connected in parallel to form a whole.
The invention has the beneficial effects that:
1. the device adopts multidirectional flow biological filtration, and the primary filter tank is upward flow, so that the device has stronger sewage receiving space; the secondary filter tank is downward flow, so that the section of filter tank has biological treatment function and certain filtering and intercepting function; the three-stage filter is downward flow, and mainly performs filtration treatment without aeration, so that the best suspended matter (SS) removal effect can be achieved. The invention improves the sewage treatment effect by the cooperation of the upward flow and the downward flow, and simultaneously has the advantages of convenient integration, reasonable structure, high efficiency, low energy and convenient transportation and operation.
2. The deep tree-shaped water inlet pipe is adopted to deeply penetrate into the filter materials of the secondary filter tank and the tertiary filter tank, when the secondary filter tank and the tertiary filter tank form surface layer filtration, and the filtration resistance is larger, the deep tree-shaped water inlet pipe can be opened through the valve, so that sewage can directly reach the inside of the filter materials, and the problem of surface layer filtration is solved.
3. The third-stage filter tank has the function of strengthening the filtering effect, when the system liquid levels of the first-stage filter tank and the second-stage filter tank rise to the warning value, sewage can be conveyed into the third-stage filter tank to be subjected to downward flow filtration again through a pressurizing suction pump arranged between the second-stage filter tank and the third-stage filter tank, so that the filtering effect of the whole device is strengthened.
4. The primary filter tank, the secondary filter tank and the tertiary filter tank all have independent back flushing regeneration functions, filtering material back flushing in the filter tank can be independently or simultaneously carried out, back flushing water and air enter from the bottom of each filter tank, secondary water distribution and air distribution are carried out through the filter heads on the surface of the supporting layer, and back flushing water can enter into the back flushing collecting tank through the overflow weirs at the top of each filter tank and then be discharged.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top plan layout view of the present invention;
FIG. 3 is a piping layout of the present invention;
FIG. 4 is a side view of a primary filter;
FIG. 5 is a side view of a secondary filter;
FIG. 6 is a side view of a three stage filter;
wherein: 1-collecting tank, 2-filter material, 3-aeration pipe, 4-water inlet pipe, 5-back flushing air inlet pipe, 6-single hole aerator, 7-booster suction pump, 8-water outlet pipe, 9-back flushing water inlet pipe, 10-supporting layer, 11-filter head, 12-deep tree-shaped water inlet pipe, 13-water distribution pipe, 14-secondary blower, 15-primary blower, 16-primary back flushing water discharge collecting tank, 17-water discharge collecting tank, 18-primary overflow weir, 19-secondary overflow weir, 20-tertiary overflow weir, 21-primary filter tank, 22-secondary filter tank, 23-tertiary filter tank, 24-primary back flushing water outlet pipe, 25-secondary back flushing water outlet pipe, 26-tertiary back flushing water outlet pipe, 27-secondary back flushing water collecting tank, 28-tertiary back flushing water inlet pipe, 29-inlet pipe valve I, 30-back flushing air inlet pipe valve II, 31-inlet pipe valve III, 32-back flushing air inlet pipe valve IV, 33-valve II, 35-aeration pipe valve III, 36-back flushing water inlet pipe valve I, 37-inlet pipe valve II, 38-back flushing water inlet pipe valve III, 39-back flushing water inlet pipe valve II, 40-deep tree-shaped water inlet pipe valve II, and tree-shaped water inlet pipe valve III, 41-shaped water inlet pipe deep tree-shaped water inlet pipe valve III.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a multi-directional flow biological filtration device as described with reference to fig. 1 comprising: the device comprises a primary filter 21, a secondary filter 22, a tertiary filter 23, an aeration device, a back flush air inlet device and a back flush water inlet device.
Referring to fig. 1, 2 and 4, the lower part of the primary filter tank 21 is connected with a water inlet pipe 4, the middle part of the primary filter tank is provided with a filter material 2 supported by a supporting layer 10, the particle size of the filter material 2 is 3-5mm, and filter heads 11 are uniformly distributed on the surface of the supporting layer 10.
The top of the primary filter tank 21 is provided with a primary overflow weir 18, the adjacent side of the top of the primary filter tank 21 is provided with a collecting tank 1, the collecting tank 1 is divided into a primary backwash collecting tank 16 and a drainage collecting tank 17 by a partition plate 42, the height of the partition plate 42 is lower than the height of the tank wall of the collecting tank 1, and the primary overflow weir 18 is communicated with the primary backwash collecting tank 16.
The bottom of the primary backwash collecting tank 16 is connected with a primary backwash drain pipe 24 with a valve.
Referring to fig. 1, 2 and 5, the middle part of the secondary filter tank 22 is also provided with a filter material 2 supported by a supporting layer 10, the particle size of the filter material 2 is 3-5mm, and filter heads 11 are uniformly distributed on the surface of the supporting layer 10.
The upper part of the secondary filter tank 22 is provided with a water distribution pipe 13, and the water distribution pipe 13 of the secondary filter tank 22 is communicated with the bottom of the drainage collecting tank 17.
As a preferred implementation manner of the embodiment, the inside of the filter material 2 of the secondary filter tank 22 is provided with the deep tree-shaped water inlet pipe 12, and the deep tree-shaped water inlet pipe 12 of the secondary filter tank 22 is connected with the water distribution pipe 13 at the upper part of the secondary filter tank 22 through the deep tree-shaped water inlet pipe valve I39. When surface filtration is formed in the secondary filter tank 22, the valve I39 of the deep tree-shaped water inlet pipe can be opened, water can be directly introduced into the filter material 2 layer, and biological treatment can be performed.
The top of the secondary filter tank 22 is provided with a secondary overflow weir 19, the adjacent side of the top of the secondary filter tank 22 is provided with a secondary backwash collecting water tank 27, the secondary overflow weir 19 is communicated with the secondary backwash collecting water tank 27, and the bottom of the secondary backwash collecting water tank 27 is connected with a secondary backwash drain pipe 25 with a valve.
Referring to fig. 1, 2 and 6, the lower part of the three-stage filter tank 23 is connected with a water outlet pipe 8, the middle part of the three-stage filter tank 23 is also provided with a filter material 2 supported by a supporting layer 10, the particle size of the filter material 2 is 2-4mm, and filter heads 11 are uniformly distributed on the surface of the supporting layer 10.
The upper part of the three-stage filter tank 23 is also provided with a water distribution pipe 13, the water distribution pipe 13 of the three-stage filter tank 23 is connected with the water outlet end of the booster suction pump 7, and the water inlet end of the booster suction pump 7 is connected with the lower part of the secondary filter tank 22.
As a preferred implementation manner of the embodiment, the inside of the filter material 2 of the tertiary filter tank 23 is provided with a deep tree-shaped water inlet pipe 12, and the deep tree-shaped water inlet pipe 12 of the tertiary filter tank 23 is connected with a water distribution pipe 13 at the upper part of the tertiary filter tank 23 through a deep tree-shaped water inlet pipe valve II 40; the principle of operation is the same as that of the secondary filter 22.
The top of the three-stage filter tank 23 is provided with a three-stage overflow weir 20, the adjacent side of the top of the three-stage filter tank 23 is provided with a three-stage backwash collecting water tank 28, the three-stage overflow weir 20 is communicated with the three-stage backwash collecting water tank 28, and the bottom of the three-stage backwash collecting water tank 28 is connected with a three-stage backwash drain pipe 26.
Referring to fig. 3, the above-mentioned primary backwash drain pipe 24, secondary backwash drain pipe 25 and tertiary backwash drain pipe 26 are connected to backwash drain header pipe 41 to collect and drain backwash water.
Referring to fig. 3, the aeration device comprises a primary air blower 15, wherein the primary air blower 15 is connected with an aeration pipe 3 arranged at the bottom of a filter material 2 of a primary filter tank 21 through an aeration pipe valve I33 and an aeration pipe valve II 34; meanwhile, the primary air blower 15 is connected with the aeration pipe 3 at the bottom of the filter material 2 of the secondary filter tank 22 through the first aeration pipe valve 33 and the third aeration pipe valve 35.
The surface of the aeration pipe 3 is uniformly provided with single-hole aerators 6, and a primary air blower 15 is used for respectively carrying out aeration treatment on a primary filter 21 and a secondary filter 22 through corresponding valve control.
Referring to fig. 3, the back flush air intake device comprises a secondary blower 14, and the secondary blower 14 is connected with a back flush air intake pipe 5 through a back flush air intake pipe valve one 29. The back flush air inlet pipe 5 is respectively communicated with the lower part of the primary filter tank 21 through a back flush air inlet pipe valve II 30, is communicated with the lower part of the secondary filter tank 22 through a back flush air inlet pipe valve III 31, and is communicated with the lower part of the tertiary filter tank 23 through a back flush air inlet pipe valve IV 32.
The back flush water inlet device comprises a back flush water inlet pipe 9, and the back flush water inlet pipe 9 is respectively communicated with the lower parts of the primary filter 21, the secondary filter 2 and the tertiary filter 23 through a back flush water inlet pipe valve I36, a back flush water inlet pipe valve II 37 and a back flush water inlet pipe valve III 38.
The back flush air inlet pipe 5 and the back flush water inlet pipe 9 are respectively sent into back flush water and air at the lower parts of the primary filter tank 21, the secondary filter tank 2 and the tertiary filter tank 23, and secondary water and air distribution is carried out through filter heads 11 uniformly distributed on the surface of the supporting layer 10, so that back flush is carried out on the filter material 2 above.
The primary filter 21, the secondary filter 22 and the tertiary filter 23 in the embodiment are sequentially connected in parallel to form an integral module structure, the integral height is not more than 3.5m, and the integral filter is convenient to transport and install integrally.
The specific working principle of the invention is as follows:
the water treated by the method is subjected to pretreatment, the SS of the incoming water is required to be controlled below 30mg/L, if the incoming water does not meet the treatment requirement, a clarification device (such as a high-density clarification tank or a magnetic coagulation clarification tank) can be arranged at the front end of the primary filter tank for pretreatment.
The first-stage filter tank 21 is an upward flow biological filter tank, the water inlet pipe 4 is arranged at the lower part of the tank body, the pretreated sewage enters from the lower part of the first-stage filter tank, enters the filter material 2 layer from the filter head 11 for biological treatment, simultaneously opens the first aeration pipe valve 33 and the second aeration pipe valve 34 for aeration, and the treated water enters the first-stage backwash collecting tank 16 from the first-stage overflow weir 18 at the upper part of the tank body.
When solids in the filter material 2 of the primary filter tank 21 accumulate to a certain degree, a surface blocking layer is formed on the upper part of the filter layer, a first backwash water inlet pipe valve 36 is opened, the backwash water enters the tank body from the backwash water inlet pipe 9, a first backwash air blower 15 is started, a first backwash air inlet pipe valve 29 and a second backwash air inlet pipe valve 30 are opened to perform air-water backwash, the backwash water inlet pipe 9 and the backwash air inlet pipe 5 are positioned on the lower part of the tank body, water distribution and air distribution are performed on the filter material 2 through the filter head 11, backwash water flows into the primary backwash water discharge collecting tank 16 through the primary overflow weir 18, and is discharged through the primary backwash water discharge pipe 24. When back flushing is not needed, the valve of the primary back flushing drain pipe 24 is closed, the treated water overflows into the drain collecting tank 17 from the primary overflow weir 18 through the primary back flushing drain collecting tank 16, and flows to the water distribution pipe 13 of the next section of secondary filter tank 22 from the drain pipe of the drain collecting tank 17.
The second-stage filter 22 is a downward flow biological filter, sewage after biological treatment by the first-stage filter 21 enters the water distribution pipe 13, water is distributed into the filter material 2 layers, at the moment, the first aeration pipe valve 33 and the third aeration pipe valve 35 are opened for aeration, biological treatment is carried out, the treated water is collected by the filter head 11, and the treated water is conveyed into the water distribution pipe 13 of the third-stage filter 23 by the lower part of the tank body through the booster suction pump 7.
When surface filtration is formed in the secondary filter tank 22, the valve I39 of the deep tree-shaped water inlet pipe is opened, and the water inlet of the water distribution pipe 13 directly enters the filter material 2 for biological treatment. When solids in the filter material 2 accumulate to a certain degree and a surface blocking layer is formed on the upper part of the filter layer, a valve II 37 of the back flush water inlet pipe is opened, water enters the tank body from the back flush water inlet pipe 9, and simultaneously, a secondary blower 14, a valve I29 of the back flush air inlet pipe and a valve I31 of the back flush air inlet pipe are opened, the back flush water inlet pipe 9 and the back flush air inlet pipe 5 are positioned on the lower part of the tank body of the secondary filter tank 22 to carry out air-water back flush, and back flush water flows into a secondary back flush water discharge collecting tank 27 through a secondary overflow weir 19 and is discharged through a secondary back flush water discharge pipe 25.
The three-stage filter 23 is a downward flow biological filter, mainly performs filtration treatment, and does not add an aeration device to strengthen the filtration effect. When the system liquid level (the preset liquid level of the primary filter tank 21 and the secondary filter tank 23) rises to the warning value, a pressurizing suction pump 7 arranged between the secondary filter tank and the tertiary filter tank is started, the outlet water of the pressurizing suction pump 7 is connected to a water distribution pipe 13 of the tertiary filter tank 23, and then enters the filter material 2 for filtering, is collected through a filter head 11 and is discharged through a drain pipe 8.
When surface filtration is formed in the three-stage filter tank 23, the valve II 40 of the deep tree-shaped water inlet pipe is opened, water is directly fed into the layer 2 of filter materials, and filtration is performed. When solids in the filter material 2 accumulate to a certain degree, a surface blocking layer is formed on the upper part of the filter layer, a valve III 38 of a back flush water inlet pipe is opened, water enters the tank body from the back flush water inlet pipe 9, and meanwhile, a secondary blower 14, a valve I29 of a back flush air inlet pipe and a valve IV 32 of the back flush air inlet pipe are opened, the back flush water inlet pipe 9 and the back flush air inlet pipe 5 are positioned on the lower part of the tank body of the three-stage filter tank 23 to carry out air-water back flush, and back flush water flows into a three-stage back flush water collecting tank 28 through a three-stage overflow weir 20 and is discharged through a three-stage back flush water discharge pipe 26.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (4)
1. A multi-directional flow biofiltration device, comprising:
the filter comprises a primary filter, wherein the lower part of the primary filter is connected with a water inlet pipe, the middle part of the primary filter is a filter material supported by a supporting layer, and filter heads are uniformly distributed on the surface of the supporting layer; the top of the primary filter tank is provided with a primary overflow weir, the adjacent side of the top of the primary filter tank is provided with a collecting tank, the inside of the collecting tank is divided into a primary backwash collecting tank and a drainage collecting tank by a partition plate, the height of the partition plate is lower than the height of the tank wall of the collecting tank, and the primary overflow weir is communicated with the primary backwash collecting tank; the bottom of the primary backwash collecting water tank is connected with a primary backwash drain pipe with a valve;
the middle part of the secondary filter tank is provided with a filter material supported by a supporting layer, and filter heads are uniformly distributed on the surface of the supporting layer; the upper part of the secondary filter tank is provided with a water distribution pipe which is communicated with the bottom of the drainage collecting tank; the top of the secondary filter tank is provided with a secondary overflow weir, the adjacent side of the top of the secondary filter tank is provided with a secondary backwash collecting water tank, the secondary overflow weir is communicated with the secondary backwash collecting water tank, and the bottom of the secondary backwash collecting water tank is connected with a secondary backwash drain pipe with a valve;
the lower part of the three-stage filter tank is connected with a water outlet pipe, the middle part of the three-stage filter tank is provided with a filter material supported by a supporting layer, and filter heads are uniformly distributed on the surface of the supporting layer; the upper part of the three-stage filter is provided with a water distribution pipe, the water distribution pipe of the three-stage filter is connected with the water outlet end of the pressurizing suction pump, and the water inlet end of the pressurizing suction pump is connected with the lower part of the secondary filter; the top of the three-stage filter tank is provided with a three-stage overflow weir, the adjacent side of the top of the three-stage filter tank is provided with a three-stage backwash collecting water tank, the three-stage overflow weir is communicated with the three-stage backwash collecting water tank, and the bottom of the three-stage backwash collecting water tank is connected with a three-stage backwash drain pipe;
the aeration device comprises a primary air blower which is connected with aeration pipes arranged at the bottom of a filter material of the primary filter tank and the bottom of a filter material of the secondary filter tank through valves respectively;
the back flush water inlet device comprises a back flush water inlet pipe which is respectively communicated with the lower parts of the primary filter tank, the secondary filter tank and the tertiary filter tank through valves;
the back flush air inlet device comprises a secondary air blower which is communicated with the lower parts of the primary filter tank, the secondary filter tank and the tertiary filter tank through a valve and a back flush air inlet pipe respectively;
the inside of the filter material of the secondary filter tank and the inside of the filter material of the tertiary filter tank are uniformly provided with deep tree-shaped water inlet pipes, the deep tree-shaped water inlet pipes of the secondary filter tank are connected with the water distribution pipes at the upper part of the secondary filter tank through valves, and the deep tree-shaped water inlet pipes of the tertiary filter tank are connected with the water distribution pipes at the upper part of the tertiary filter tank through valves.
2. The multi-directional flow biological filter according to claim 1, wherein single-hole aerators are uniformly distributed on the surface of the aeration pipe.
3. The multi-directional biological filter apparatus according to claim 1, wherein the particle size of the filter material in the primary filter and the secondary filter is 3-5mm; the particle size of the filter material in the three-stage filter tank is 2-4mm.
4. The multi-directional flow biological filter apparatus of claim 1, wherein the primary filter, the secondary filter and the tertiary filter are sequentially connected in parallel as a whole.
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| CN201811058284.4A CN108996850B (en) | 2018-09-11 | 2018-09-11 | Multidirectional flow biological filter device |
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|---|---|---|---|
| CN201811058284.4A CN108996850B (en) | 2018-09-11 | 2018-09-11 | Multidirectional flow biological filter device |
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| CN108996850A CN108996850A (en) | 2018-12-14 |
| CN108996850B true CN108996850B (en) | 2023-11-07 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896013A (en) * | 2006-06-09 | 2007-01-17 | 华南理工大学 | Laminated aerator biological filter pool and its method for pretreat light-pollution primary water |
| CN101033100A (en) * | 2007-02-06 | 2007-09-12 | 浙江理工大学 | Method and device for treating sewage by composite flow aeration biological filter |
| CN202124518U (en) * | 2011-06-24 | 2012-01-25 | 上海亚同环保实业有限公司 | Multistage downflow bioaeration filter |
| KR101248394B1 (en) * | 2011-12-14 | 2013-04-01 | 주식회사 신우엔지니어링 | Overflow water treatment apparatus of confluent water drainage |
| CN203392918U (en) * | 2013-08-02 | 2014-01-15 | 大连玉源环境工程有限公司 | Novel biological aerated filter |
| CN105668787A (en) * | 2016-01-26 | 2016-06-15 | 南京大学 | Combined type multi-stage biological aerated filter and wastewater treatment process based on same |
| WO2017088824A1 (en) * | 2015-09-25 | 2017-06-01 | 上海凡清环境工程有限公司 | Integrated organism filter sewage treatment apparatus |
| CN209010334U (en) * | 2018-09-11 | 2019-06-21 | 安徽亚泰环境工程技术有限公司 | A kind of multidirectional stream biofiltration device |
-
2018
- 2018-09-11 CN CN201811058284.4A patent/CN108996850B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896013A (en) * | 2006-06-09 | 2007-01-17 | 华南理工大学 | Laminated aerator biological filter pool and its method for pretreat light-pollution primary water |
| CN101033100A (en) * | 2007-02-06 | 2007-09-12 | 浙江理工大学 | Method and device for treating sewage by composite flow aeration biological filter |
| CN202124518U (en) * | 2011-06-24 | 2012-01-25 | 上海亚同环保实业有限公司 | Multistage downflow bioaeration filter |
| KR101248394B1 (en) * | 2011-12-14 | 2013-04-01 | 주식회사 신우엔지니어링 | Overflow water treatment apparatus of confluent water drainage |
| CN203392918U (en) * | 2013-08-02 | 2014-01-15 | 大连玉源环境工程有限公司 | Novel biological aerated filter |
| WO2017088824A1 (en) * | 2015-09-25 | 2017-06-01 | 上海凡清环境工程有限公司 | Integrated organism filter sewage treatment apparatus |
| CN105668787A (en) * | 2016-01-26 | 2016-06-15 | 南京大学 | Combined type multi-stage biological aerated filter and wastewater treatment process based on same |
| CN209010334U (en) * | 2018-09-11 | 2019-06-21 | 安徽亚泰环境工程技术有限公司 | A kind of multidirectional stream biofiltration device |
Non-Patent Citations (1)
| Title |
|---|
| 曝气生物滤池在市政污水处理工程中的应用;白海龙;;中国市政工程(第03期);50-51 * |
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