CN110759470A - Three-dimensional layered step-by-step biological purification tank - Google Patents
Three-dimensional layered step-by-step biological purification tank Download PDFInfo
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- CN110759470A CN110759470A CN201910982875.9A CN201910982875A CN110759470A CN 110759470 A CN110759470 A CN 110759470A CN 201910982875 A CN201910982875 A CN 201910982875A CN 110759470 A CN110759470 A CN 110759470A
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- 238000000746 purification Methods 0.000 title claims abstract description 113
- 239000010865 sewage Substances 0.000 claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000000945 filler Substances 0.000 claims abstract description 31
- 238000005273 aeration Methods 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 22
- 239000002893 slag Substances 0.000 claims description 21
- 239000003814 drug Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000035484 reaction time Effects 0.000 abstract description 5
- 210000005056 cell body Anatomy 0.000 abstract description 2
- 210000004027 cell Anatomy 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
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- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
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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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a three-dimensional layered step-by-step biological purification tank, which comprises: the sewage treatment device comprises a tank body, wherein a sewage inlet is formed at the lower end of the tank wall of the tank body, and a sewage outlet is formed at the upper end of the tank wall; the laminated plate is arranged in the tank body, divides a tank cavity of the tank body into two purification compartments which are arranged up and down, and is provided with water through holes which are communicated with the two purification compartments; the one-way valve is arranged in the water passing hole; and a plurality of biological fillers distributed in each purification compartment. The water passing holes and the purification compartments are communicated in sequence to form the purification channel, so that unit amount of sewage flows through the purification compartments in sequence in a unit treatment period, and can perform a biological purification reaction with the biological filler in each purification compartment, thereby greatly prolonging the contact reaction time of the sewage and the biological filler, realizing multiple biological purification reactions of the sewage when flowing through the cell body, leading the sewage to be thoroughly purified and greatly enhancing the purification treatment and efficiency of the purification cell on the sewage.
Description
Technical Field
The invention relates to the technical field of sewage purification treatment, in particular to a three-dimensional layered step-by-step biological purification tank.
Background
With the continuous progress of sewage treatment technology and the continuous enhancement of environmental protection consciousness of people, national and local governments correspondingly put forward higher requirements on sewage discharge standards and strictly control the discharge amount of nitrogen and phosphorus in town sewage. However, the existing sewage treatment tank and the treatment process thereof are difficult to meet the standard-upgrading requirement due to the problems of early construction, backward treatment process, unreasonable tank capacity distribution and the like of most of domestic sewage treatment plants at present.
In view of this, a new sewage treatment process, MBBR process (Moving bedbidifi 1m Reactor, Moving bed biofilm Reactor), has gradually appeared in recent years. Simply speaking, a certain amount of suspended biological fillers with certain density are added into a traditional sewage treatment tank, and after a biological film is formed on the biological fillers, the biological film and activated sludge can form a combined process, so that the biomass in the tank is greatly improved, the secondary biological treatment of sewage is enhanced, and the purpose of efficient and deep nitrogen and phosphorus removal is achieved. However, since the shape and capacity of the sewage treatment tank are fixed after construction and in order to increase the sewage treatment capacity, the sewage is discharged from the tank after entering the tank and flows for a short distance according to a straight line or arc line path, the contact and reaction time between the sewage and the biological filler is too short, the biological filler directly causes that the biological filler does not perform sufficient biological purification treatment on the sewage, the sewage is discharged, and the sewage purification effect and efficiency are poor.
Disclosure of Invention
Based on this, it is necessary to provide a three-dimensional layered step-by-step biological purification tank, which aims to solve the problems of short contact reaction time between the biological filler and the sewage and poor biological purification effect of the sewage in the prior art.
The technical scheme is as follows:
a three-dimensional layered stepwise biological purification tank, comprising:
the sewage treatment device comprises a tank body, wherein a sewage inlet is formed at the lower end of the tank wall of the tank body, and a sewage outlet is formed at the upper end of the tank wall;
the laminated plate is arranged in the tank body, divides a tank cavity of the tank body into two purification compartments which are arranged up and down, and is provided with water through holes which are communicated with the two purification compartments;
the check valve is arranged in the water passing hole; and
a plurality of biological fillers distributed in each purification compartment.
In the three-dimensional layered step-by-step biological purification tank, sewage to be purified flows into the tank body from a sewage inlet at the lower part and finally flows out from a sewage outlet at the upper part, compared with the traditional sewage treatment tank, the purification tank is different in that a laminate is arranged on the wall of the tank, the cavity of the tank body can be divided into two purification compartments arranged in the vertical direction by the laminate, and the two purification compartments are communicated through water passing holes preset on the laminate, so that a purification channel formed by the water passing holes and the purification compartments which are sequentially communicated is formed in the sewage flow direction, so that unit amount of sewage flows through each purification compartment in sequence in a unit treatment period and can perform a biological purification reaction with biological filler in each purification compartment, namely the contact reaction time of the sewage and the biological filler is greatly prolonged, and multiple biological purification reactions of the sewage when the tank body flows through are realized, the sewage purification treatment is thorough, and the purification treatment and the efficiency of the purification tank to the sewage are greatly enhanced. And, owing to installed the check valve in the water passing hole for sewage can only flow from bottom to top, and avoid sewage from top to bottom refluence, thereby do benefit to the purification tank and have higher sewage treatment ability.
The technical solution of the present application is further described below:
in one embodiment, the three-dimensional layered step-by-step biological purification tank further comprises a separation net, and the separation net is arranged on the water passing hole and is positioned below the one-way valve.
In one embodiment, the three-dimensional layered step-by-step biological purification tank further comprises an air source, an air supply pipe communicated with the air source, and an aeration pipe arranged on the laminate, wherein the aeration pipe is provided with at least two aeration holes arranged at intervals.
In one embodiment, the number of the aeration pipes is at least two, and the aeration pipes are uniformly distributed on the laminated plate.
In one embodiment, the three-dimensional layered step-by-step biological purification tank further comprises a flow pusher, and the flow pusher is arranged in each purification compartment and is located at an upstream position in the sewage flowing direction.
In one embodiment, the three-dimensional layered step-by-step biological purification tank further comprises a liquid flow pushing device, and the liquid flow pushing device is arranged in each purification compartment and is positioned below the water through holes.
In one embodiment, the liquid flow pushing device comprises a rotating motor, a rotating shaft connected with a power shaft of the rotating motor, and a pushing screw arranged on the outer wall of the rotating shaft.
In one embodiment, the stereoscopic layered step-by-step biological purification tank further comprises a dosing device, and the dosing device is arranged at a tank opening of the tank body; the medicine feeding device comprises a medicine feeding box, a medicine feeding pipe communicated with the medicine feeding box and at least two medicine feeding spray heads arranged on the medicine feeding pipe at intervals.
In one embodiment, the stereoscopic layered step-by-step biological purification tank further comprises a slag scraping device arranged in each purification compartment, wherein the slag scraping device comprises a linear driving piece, a rotary driving piece connected with the linear driving piece, a slag scraping plate in driving connection with the rotary driving piece, and at least two flexible slag scraping hooks arranged on the slag scraping plate at intervals.
In one embodiment, the number of the laminates, the water through holes and the one-way valves is at least two, and the laminates, the water through holes and the one-way valves are matched in a one-to-one correspondence mode.
Drawings
Fig. 1 is a schematic structural diagram of a three-dimensional layered stepwise biological purification tank according to an embodiment of the present invention.
Description of reference numerals:
10. a tank body; 11. a sewage inlet; 12. a sewage outlet; 13. purifying the separated bin; 20. laminating the board; 21. water passing holes; 30. a one-way valve; 40. biological fillers; 50. separating the net; 60. an aeration pipe; 70. a flow impeller; 80. a fluid stream propelling device; 81. a rotating electric machine; 82. pushing the screw; 90. a dosing device; 91. a dosing box; 92. a medicine feeding pipe; 93. a dosing spray head.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to," "disposed on" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the specific manner of fixedly connecting one element to another element can be implemented by the prior art, and will not be described herein, and preferably, a screw-threaded connection is used.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1, the three-dimensional layered step-by-step biological purification tank shown in the embodiment of the present application is operated by using an MBBR process, and can be used for deeply and efficiently purifying sewage by fully combining two process technologies of a biofilm and activated sludge, so as to effectively remove nitrogen and phosphorus impurities in the sewage, and enable the discharged sewage to reach the discharge standard after national standards improvement.
In this scheme, three-dimensional layering biological purification pond step by step includes: a pool body 10, a laminate 20, a one-way valve 30 and a plurality of biological fillers 40. It can be understood that the tank body 10 is identical to a conventional sewage treatment tank, and serves as a structure for accommodating sewage to facilitate a concentrated purification treatment of the sewage. A sewage inlet 11 and a sewage outlet 12 are formed on the wall of the tank body 10 to realize the inflow and outflow of sewage into and out of the tank body 10. Specifically, in the scheme, a sewage inlet 11 is formed at the lower end of the tank wall of the tank body 10, and a sewage outlet 12 is formed at the upper end of the tank wall. The shape of the pool body 10 can be selected according to actual needs, such as round, square, etc.; the construction material of the tank body 10 can also be selected according to the actual requirement, such as brick-concrete material, stainless steel plate, etc.
Referring to fig. 1, compared to the conventional sewage treatment tank, the difference is that the laminate 20 is installed on the tank wall of the tank 10, and the laminate 20 divides the tank cavity of the tank 10 into two purification compartments 13 arranged up and down, so that a complete and transparent tank cavity is formed into a three-dimensional layered structure, that is, the height space of the tank cavity is fully utilized and the function is set in a partitioned manner. In addition, the laminate 20 is provided with water through holes 21 communicated with the upper and lower purification compartments 13; a check valve 30 is installed in the water passing hole 21.
A plurality of said biological fillers 40 are distributed in each of said purification compartments 13 and suspended in the sewage. Therefore, when sewage flows from top to bottom in sequence, the sewage can enter each purification compartment 13 and the biological fillers 40 in each layer are fully contacted and reacted.
In conclusion, the real-time scheme has the following beneficial effects: in the three-dimensional layered step-by-step biological purification tank, sewage to be purified flows into the tank body 10 from the sewage inlet 11 at the lower part and finally flows out from the sewage outlet 12 at the upper part, compared with the traditional sewage treatment tank, the purification tank is different in that the tank cavity of the tank body 10 can be divided into two purification compartments 13 arranged in the up-down direction by installing the laminate 20 on the tank wall in the scheme, the two purification compartments 13 are communicated through the water passing holes 21 preset on the laminate 20, so that a purification channel formed by the water passing holes 21 and the purification compartments 13 which are sequentially communicated is formed in the sewage flow direction, unit amount of sewage flows through each purification compartment 13 in sequence in a unit treatment period and can perform a biological purification reaction with the biological filler 40 in each purification compartment 13, namely, the contact reaction time of the sewage and the biological filler 40 is greatly prolonged, the sewage is subjected to a plurality of times of biological purification reactions when flowing through the tank body 10, the sewage is thoroughly purified, and the purification treatment and the efficiency of the purification tank on the sewage are greatly enhanced. In addition, the check valve 30 is arranged in the water through hole 21, so that sewage can only flow from bottom to top, and the sewage is prevented from flowing backwards from top to bottom, and the purification tank is beneficial to having higher sewage treatment capacity.
It should be noted that the biological filler 40 mentioned in the present application is a purification product having biological purification ability. It is made of light materials, such as light plastics; and it is a hollow spatial structure specifically, is put into the purifying tank directly and can suspend in sewage when normal work. The sewage suspension device is suspended in the sewage, and can conveniently flow around along with the sewage, so that the sewage can be more fully contacted. The biological filler 40 can grow into a biological film in the hollow cavity, and the biological film can provide a place for inhabitation and propagation of anaerobic bacteria, so that the anaerobic bacteria can remove nitrogen-containing substances in sewage through denitrification, and the aim of purifying water is fulfilled.
It is understood that the biological filler 40 can be any one of the well-known biological filler 40 products in the prior art, and can be selected according to actual needs, and is not limited in particular.
It should be noted that, taking the tank body 10 as a rectangular structure as an example, the length and the width of the layer plate 20 need to be correspondingly adapted to the length and the width of the tank cavity, so that the layer plate 20 can be firmly installed and fixed in the tank cavity. The middle part of the laminate 20 is provided with a water through hole 21, so that sewage can flow in the purification compartments 13 of different layers. It can be understood that, when sewage continuously flows into the lowest purification compartment 13 and fills the purification compartment 13, the sewage continuously overflows to the upper purification compartment 13 through the check valve 30 in the water through hole 21 until the upper purification compartment 13 is filled, and finally is discharged out of the tank body 10 through the sewage outlet 12. Because the filling purification compartment 13 and the overflow mode through the water passing holes 21 give time for the sewage to fully contact with the biological filler 40 in each layer, the thorough and full contact action between the sewage and the biological filler 40 can be ensured, and the biological purification effect is ensured.
Referring to fig. 1, in particular, in a preferred embodiment, the number of the laminate 20, the water through holes 21 and the check valves 30 is at least two, and the laminates are matched with one another. According to the actual work needs promptly, can further divide into more purification compartment 13 with the pond chamber space, sewage is by each purification compartment 13 time of supreme flowing through down, with the biofilm carrier 40 contact reaction in each layer, can form multistage purifying effect, makes the nitrogen phosphorus harmful substance in the sewage be got rid of totally step by step, has strengthened sewage treatment efficiency.
Alternatively, the laminate 20 may be made of any dense material, such as wood, stainless steel, plastic, etc., and four sides of the laminate 20 are connected to the walls of the tank body 10 and ensure sealing. The connection of the layer plate 20 to the pool wall can be, but is not limited to, welding, or bonding. Keep sealed aim at between layer and avoid the interior relatively clean sewage of upper strata to flow backward into lower floor and purify compartment 13 and cause repeated purification operation, influence the work efficiency of purification tank.
Further, in an embodiment, the stereoscopic layered step-by-step biological purification tank further includes a separation net 50, and the separation net 50 is covered on the water through hole 21 and is located below the one-way valve 30. Through setting up the partition net 50, can prevent that branch, leaf, plastic bag etc. that mix in the sewage from blockking up check valve 30, cause sewage unable overflow to the upper strata and purify in the compartment 13, cause the drainage obstacle.
And in order to remove the impurities accumulated on the separation net 50, the problem that the sewage flows unsmoothly due to the blockage of the separation net 50 by the impurities is avoided. The three-dimensional layered step-by-step biological purification tank further comprises slag scraping devices arranged in each purification compartment 13, wherein each slag scraping device comprises a linear driving piece, a rotary driving piece connected with the linear driving piece, a slag scraping plate connected with the rotary driving piece in a driving manner, and at least two flexible slag scraping hooks arranged on the slag scraping plate at intervals. It will be appreciated that the linear drive may be, but is not limited to, a pneumatic cylinder; the rotary drive may be, but is not limited to, an electric motor. When slag removal operation is carried out, firstly, the cylinder drives the piston rod to retract, the slag scraping plate is driven to move from the far end to the near end of the separation net 50 (certainly, the slag scraping plate can also move from the near end to the far end), and the flexible slag scraping hook can scrape and collect impurities accumulated on the surface of the separation net 50; then the motor acts to drive the slag scraping plate to rotate, so that the impurities can be finally completely carried away from the separation net 50, and the problem of unsmooth water flow caused by impurity blockage is solved.
It should be noted that, the flexible slag scraping hook is made of a plastic material, has good toughness and deformation capability, and can avoid scraping the separation net 50 due to the rigid action with the separation net 50 while scraping away impurities.
Referring to fig. 1, it can be seen that, according to the above-mentioned scheme, when sewage flows in each layer of purification compartments 13, the sewage flow speed is limited mainly by the sewage overflow mode, which affects the sewage treatment capability of the purification tank to a certain extent. Based on this, the three-dimensional layered step-by-step biological purification tank further comprises a liquid flow pushing device 80, and the liquid flow pushing device 80 is arranged in each purification compartment 13 and is positioned below the water through holes 21. In one embodiment, the liquid pushing device 80 includes a rotating motor 81, a rotating shaft connected to a power shaft of the rotating motor 81, and a pushing screw 82 disposed on an outer wall of the rotating shaft. In this way, the rotating motor 81 drives the rotating shaft to drive the pushing screw 82 to rotate, and the pushing screw 82 drives the sewage to rapidly converge and flow towards the one-way valve 30, so that the sewage can more easily pass through the one-way valve 30 and enter the upper purification compartment 13, thereby avoiding the above problems. The check valve 30 should be a large flow check valve 30, and should have a small flow resistance to allow a large flow of water to pass through.
Furthermore, in order to increase the flowing speed of the sewage from bottom to top, a booster pump is also installed in the sewage inlet 11, and the sewage is driven to flow into the purification compartment 13 at the uppermost layer rapidly in a boosting mode. In addition, a liquid pump is further installed in the sewage outlet 12, and sewage is further accelerated to be discharged out of the tank body from the sewage outlet 12 in a suction mode. In summary, the booster pump and the liquid pump arranged at the upper end and the lower end form a liquid flow driving mode of one-pressure-one-pumping, which can ensure that the sewage flows rapidly from bottom to top.
In an embodiment, the three-dimensional layered step-by-step biological purification tank further includes an air source, an air supply pipe communicated with the air source, and an aeration pipe 60 disposed on the laminate 20, wherein the aeration pipe 60 is provided with at least two aeration holes disposed at intervals. So, the oxygen of air supply output is carried aeration pipe 60 via the air supply pipe, can follow the aeration hole blowout finally and get into in the sewage, for sufficient oxygen of sewage supply for the biomembrane on the biofilm carrier 40 acquires sufficient oxygen, has created favourable environment for going on when digestion reaction and denitrification reaction, has strengthened the nitrogen and phosphorus removal effect of biofilm carrier 40 to sewage.
It should be noted that the basic principle of the biofilm process is applied to the MBBR process, and the technical key point is that the adopted biological filler 40 has an effective large surface area, is suitable for microbial adsorption growth, has a specific gravity close to that of water, and can freely move along with the water under slight stirring. Under aerobic conditions, the water flow and the biological filler 40 generate a large amount of air bubbles under the action of aeration and oxygenation, the rising buoyancy of the air bubbles pushes the biological filler 40 and the surrounding water body to flow, and when the air flow passes through the gap between the water flow and the biological filler 40, the air flow is blocked by the biological filler 40 and is divided into tiny bubbles. In such a process, the biofilm carrier 40 is sufficiently agitated and mixed with the water stream, and the air stream is sufficiently broken down into fine bubbles, increasing the biofilm contact with oxygen and oxygen transfer efficiency.
Further preferably, the number of the aeration pipes 60 is at least two, and the aeration pipes are uniformly distributed on the laminate 20. Thus, the at least two aeration pipes 60 simultaneously aerate and oxygenate the sewage, and the biological purification efficiency can be more effectively enhanced. Preferably, the aeration pipes 60 are connected into a whole to form a circuitous structure, so that the number of the aeration pipes 60 can be reduced, the installation difficulty can be reduced, the number of aeration holes can be increased, and the oxygen supply capacity can be enhanced.
In one embodiment, the three-dimensional layered biological purification tank further comprises a flow impeller 70, and the flow impeller 70 is disposed in each purification compartment 13 and located at an upstream position in the sewage flow direction. The flow pusher 70 is used for driving the water flow in the purification compartment 13 to flow more effectively, so that the biological filler 40 is more fully and uniformly contacted with the sewage, and the nitrogen and phosphorus removal effect is further enhanced. Specifically, the flow pusher 70 is a gas injection device or a water jet device.
With continuing reference to fig. 1, in addition, the stereoscopic layered stepwise biological purification tank further includes a dosing device 90, and the dosing device 90 is disposed at the tank opening of the tank body 10; the feeding and dosing device 90 comprises a dosing box 91, a dosing pipe 92 communicated with the dosing box 91, and at least two dosing nozzles 93 arranged on the dosing pipe 92 at intervals. So, before sewage from the purification compartment 13 of the superiors is about to discharge from sewage outlet 12 outside cell body 10, through throwing purifying chemicals to the pond in, can further strengthen purifying tank to sewage purification treatment ability and treatment effect, guarantee that discharged sewage satisfies the national standard of proposition requirement.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a biological purification pond step by step of three-dimensional layering which characterized in that includes:
the sewage treatment device comprises a tank body, wherein a sewage inlet is formed at the lower end of the tank wall of the tank body, and a sewage outlet is formed at the upper end of the tank wall;
the laminated plate is arranged in the tank body, divides a tank cavity of the tank body into two purification compartments which are arranged up and down, and is provided with water through holes which are communicated with the two purification compartments;
the check valve is arranged in the water passing hole; and
a plurality of biological fillers distributed in each purification compartment.
2. The biological purification tank according to claim 1, further comprising a screen mesh disposed on the water through hole and located below the one-way valve.
3. The biological purification tank according to claim 2, further comprising an air supply, an air supply pipe connected to the air supply, and an aeration pipe disposed on the laminate, wherein the aeration pipe has at least two aeration holes disposed at intervals.
4. The biological purification tank according to claim 3, wherein the number of the aeration pipes is at least two and the aeration pipes are uniformly distributed on the layer plates.
5. The biological purification tank according to claim 4, further comprising a flow impeller disposed in each purification compartment and located upstream of the wastewater flow direction.
6. The biological purification tank according to claim 5, further comprising a liquid flow pushing device disposed in each purification compartment and below the water through holes.
7. The biological purification tank according to claim 6, wherein the liquid flow pushing device comprises a rotating motor, a rotating shaft connected with a power shaft of the rotating motor, and a pushing screw arranged on the outer wall of the rotating shaft.
8. The stereoscopic layered stepwise-biological purification tank as claimed in claim 7, further comprising a dosing device disposed at the tank mouth of the tank body; the medicine feeding device comprises a medicine feeding box, a medicine feeding pipe communicated with the medicine feeding box and at least two medicine feeding spray heads arranged on the medicine feeding pipe at intervals.
9. The biological purification tank, according to claim 8, further comprising a slag scraping device disposed in each of the purification compartments, wherein the slag scraping device comprises a linear driving member, a rotary driving member connected to the linear driving member, a slag scraping plate drivingly connected to the rotary driving member, and at least two flexible slag scraping hooks disposed on the slag scraping plate at intervals.
10. The stereoscopic layered stepwise-biological purification pool as claimed in any one of claims 1 to 9, wherein the number of the laminate, the water through holes and the one-way valves is at least two and the laminates, the water through holes and the one-way valves are matched in a one-to-one correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910982875.9A CN110759470A (en) | 2019-10-16 | 2019-10-16 | Three-dimensional layered step-by-step biological purification tank |
Applications Claiming Priority (1)
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| CN2617761Y (en) * | 2003-02-21 | 2004-05-26 | 重庆大学 | Sewage treating lifting helical flow biological reactor |
| KR20130000923U (en) * | 2011-07-30 | 2013-02-07 | 대구대학교 산학협력단 | Apparatus of multi-staged fluidized biofilter |
| CN104826370A (en) * | 2015-05-19 | 2015-08-12 | 中国市政工程西南设计研究总院有限公司 | Compound flat plate settling unit and settling process using same |
| CN107226594A (en) * | 2017-07-31 | 2017-10-03 | 四川弘毅智慧知识产权运营有限公司 | A kind of efficient mine wastewater processing equipment |
| CN211111290U (en) * | 2019-10-16 | 2020-07-28 | 广州市净水有限公司 | Three-dimensional layered step-by-step biological purification tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2617761Y (en) * | 2003-02-21 | 2004-05-26 | 重庆大学 | Sewage treating lifting helical flow biological reactor |
| KR20130000923U (en) * | 2011-07-30 | 2013-02-07 | 대구대학교 산학협력단 | Apparatus of multi-staged fluidized biofilter |
| CN104826370A (en) * | 2015-05-19 | 2015-08-12 | 中国市政工程西南设计研究总院有限公司 | Compound flat plate settling unit and settling process using same |
| CN107226594A (en) * | 2017-07-31 | 2017-10-03 | 四川弘毅智慧知识产权运营有限公司 | A kind of efficient mine wastewater processing equipment |
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