CN110127935B - Trapezoidal composite flow artificial rapid infiltration tank and sewage treatment system thereof - Google Patents
Trapezoidal composite flow artificial rapid infiltration tank and sewage treatment system thereof Download PDFInfo
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- CN110127935B CN110127935B CN201910334668.2A CN201910334668A CN110127935B CN 110127935 B CN110127935 B CN 110127935B CN 201910334668 A CN201910334668 A CN 201910334668A CN 110127935 B CN110127935 B CN 110127935B
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- 230000008595 infiltration Effects 0.000 title claims abstract description 99
- 238000001764 infiltration Methods 0.000 title claims abstract description 99
- 239000010865 sewage Substances 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000010410 layer Substances 0.000 claims abstract description 74
- 239000000945 filler Substances 0.000 claims abstract description 26
- 150000001875 compounds Chemical class 0.000 claims abstract description 23
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000011001 backwashing Methods 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 210000005056 cell body Anatomy 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229930014626 natural product Natural products 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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
Landscapes
- 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)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The invention discloses a trapezoid composite flow artificial rapid infiltration tank and a sewage treatment system thereof; the rapid infiltration tank comprises a rapid infiltration tank body, wherein the rapid infiltration tank body comprises a middle rapid infiltration channel and water distribution grooves arranged on two sides of the middle rapid infiltration channel, a perforated guide plate is vertically arranged between the middle rapid infiltration channel and the water distribution grooves, the middle rapid infiltration channel is divided into a bottom layer channel and an upper layer channel from bottom to top, a lower geotechnical filter screen is paved between the bottom layer channel and the upper layer channel, a rapid infiltration filling layer and a pebble protective layer are filled in the upper layer channel, and the pebble protective layer and the upper part of the rapid infiltration filling layer are hollow to form an inverted trapezoid structure; the system comprises a water inlet pipe, wherein the water inlet pipe is sequentially connected with a grid regulating tank, a rapid filter tank, a trapezoid compound flow artificial rapid infiltration device and a water outlet pipe, and the rapid filter tank is connected with the water inlet pipe through a backwashing pipe; the invention has the characteristics of excellent natural reoxygenation performance, better pollutant removal effect, difficult blockage of the filler, more stable operation and easy maintenance and management.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a trapezoid composite flow artificial quick infiltration (TCRI) pool and a sewage treatment system thereof.
Background
The artificial fast infiltration system is a novel sewage ecological treatment technology, is developed based on the previous fast infiltration system of the land, replaces the action of a natural soil layer by using a filter medium with good permeability, and greatly improves the hydraulic load of the system. Because the artificial rapid infiltration technology has the advantages of good treatment effect, low construction investment, low operation cost, convenient operation and management and the like, rapid development and application are obtained. As Chinese patent CN1676469A discloses an artificial rapid infiltration sewage treatment system; chinese patent CN206783472U discloses an "aeration artificial rapid infiltration system for domestic sewage treatment"; chinese patent CN105923929a discloses an "ecological artificial rapid infiltration system", etc.
In the popularization and application process of the manual rapid infiltration technology in recent years, the traditional manual rapid infiltration system has insufficient filler utilization rate, the filler is easy to block after a period of operation, the treatment efficiency is reduced, and the treatment effect is unstable.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a trapezoid composite flow artificial quick infiltration (TCRI) sewage treatment tank and a sewage treatment system thereof. The sewage treatment system has the characteristics of high utilization rate of the filling materials, difficult blockage, high treatment efficiency, stable effect and convenient operation and management.
In order to achieve the above purpose, the invention designs a trapezoid compound flow artificial rapid infiltration pond, which comprises a rapid infiltration pond body, wherein the rapid infiltration pond body comprises a middle rapid infiltration channel and water distribution grooves arranged at two sides of the middle rapid infiltration channel, a perforated guide plate is vertically arranged between the middle rapid infiltration channel and the water distribution grooves, the bottom surface of the middle rapid infiltration channel is lower than the water distribution grooves, the middle rapid infiltration channel is divided into an bottom channel and an upper channel from bottom to top, a lower geotechnical filter screen is paved between the bottom channel and the upper channel, a diversion blind ditch is arranged in the bottom channel, the diversion blind ditch comprises a diversion layer and a perforated water collecting pipe which horizontally penetrates through the diversion layer, the upper channel consists of a rectangular channel and an inverted trapezoid channel, a rapid infiltration filler layer and a pebble protective layer are filled in the upper channel, the rapid infiltration filler layer is paved in the rectangular channel and the inverted trapezoid channel, and the pebble protective layer and the upper part of the rapid infiltration layer are hollow to form an inverted trapezoid structure (the hollow inverted trapezoid structure of the middle rapid infiltration channel and the pebble protective layer and the upper part of the rapid infiltration layer form an acute angle, and the acute angle can be slightly smaller than the full seepage angle with the water flow flowing through the diversion layer, so that the full seepage can be achieved; an upper geotechnical filter screen is arranged between the rapid infiltration packing layer and the pebble protective layer.
Further, the water distribution ditch comprises a security filter layer at the bottom, a perforated water distribution pipe is paved on the security filter layer, and water distribution holes are formed in the perforated water distribution pipe. The side wall of the water distribution ditch adopts a perforated guide plate, so that uniform water distribution is ensured; the filter layer is protected to further reduce the content of suspended matters in the water entering the subsequent rapid infiltration tank. The middle of the upper part of the security filter layer is provided with a perforated water distribution pipe, and the water distribution adopts a spray water distribution mode.
Still further, the bottom of the security filter layer of the water distribution ditch is higher than the rectangular channel, and the security filter layer consists of gravel with the thickness of 20-30 cm. The particle size of the gravel is the same as that of the filler of the rapid infiltration filler layer; the thickness and type of the filler of the rapid infiltration filler layer are comprehensively determined according to the quality of water inlet and outlet, hydraulic load and the like.
Still further, the flow guiding layer is formed by pebbles with the thickness of 20-50 cm, and the particle size of the pebbles in the flow guiding layer is 30-50 mm; the specification of the upper geotechnical filter screen and the lower geotechnical filter screen is not less than 200g/m 2
Still further, the thickness of the pebble protective layer is 8-15 cm, and the particle size is 30-50 mm. The pebble protective layer can protect the packing stacking shape from being washed and deformed by water flow on one hand, and can prevent external sundries from entering the packing layer to block the packing on the other hand. And water distribution grooves are arranged on two sides of the filter tank, and perforated guide plates are adopted on the side walls of the water distribution grooves to ensure uniform water distribution.
The number of the trapezoid compound flow artificial rapid infiltration pools is determined according to actual conditions, and the trapezoid compound flow artificial rapid infiltration pools are integrated and combined in a parallel or serial mode.
The invention also provides a trapezoid compound flow artificial rapid infiltration sewage treatment system, which comprises a water inlet pipe, wherein the water inlet pipe is sequentially connected with a grid regulating tank, a rapid filter, a trapezoid compound flow artificial rapid infiltration device and a water outlet pipe, the rapid filter is connected with the water inlet pipe through a backwashing pipe, and the trapezoid compound flow artificial rapid infiltration device is the trapezoid compound flow artificial rapid infiltration tank;
or the artificial rapid infiltration tank is formed by connecting a plurality of trapezoid compound flow artificial rapid infiltration tanks end to end;
or a plurality of trapezoid compound flow artificial rapid infiltration tanks are arranged side by side.
Further, the water distribution ditch comprises a security filter layer at the bottom, a perforated water distribution pipe is paved on the security filter layer, and water distribution holes are formed in the perforated water distribution pipe.
Still further, the bottom of the security filter layer of the water distribution ditch is higher than the rectangular channel, and the security filter layer consists of gravel with the thickness of 20-30 cm.
Still further, the flow guiding layer is formed by pebbles with the thickness of 20-50 cm, and the particle size of the pebbles in the flow guiding layer is 30-50 mm; the specifications of the upper geotechnical filter screen and the lower geotechnical filter screen are not less than 200g/m 2
Still further, the thickness of the pebble protective layer is 8-15 cm, and the particle size is 30-50 mm.
The invention has the beneficial effects that:
(1) Excellent natural reoxygenation performance
The rapid infiltration tank adopts a water distribution and dry falling period alternate operation mode. In the dry period, sewage can generate larger negative pressure in the filler in the infiltration process, so that air is brought into the filler, sufficient oxygen is provided for a biomembrane on the filler, and the metabolism of microorganisms is accelerated. Oxygen in the traditional manual rapid infiltration system can only enter the filler from the upper plane of the filler, and the trapezoid compound flow manual rapid infiltration sewage treatment system can enable oxygen to enter the filler from both sides of the tank body and the trapezoid area at the upper part, so that the natural compound oxygen range is wider, the dimension is larger, and the natural compound oxygen effect is better.
(2) Better pollutant removing effect
The traditional manual rapid infiltration system generally adopts a vertical infiltration mode, the filler layer is not thickened, otherwise, the filler is easy to block in the later operation stage; on the other hand, the head loss is larger. According to the invention, an oblique seepage mode is adopted according to seepage flow direction, so that the method can have a longer seepage flow under the condition of the same height difference, and the filler can be more fully utilized. Meanwhile, the trapezoid compound flow artificial rapid infiltration tank adopts a spray water distribution mode in the water distribution period, so that the concentration of dissolved oxygen in water entering the rapid infiltration tank can be increased; the method also has better reoxygenation effect in the dry falling period. The longer infiltration flow and the better natural reoxygenation effect can ensure that the trapezoid composite flow artificial rapid infiltration sewage treatment system has better pollutant removal effect.
(3) The filler is not easy to be blocked, and the operation is more stable
The invention adopts a two-side oblique water inlet mode, and because the water seepage speed is slower, water can be stood in the water distribution ditch for a long time for sedimentation, and most suspended matters remained in the water can be retained and removed again by the security filter layer after sedimentation. Therefore, compared with the vertical water inlet mode at the upper part of the traditional manual rapid infiltration tank, the unique oblique water inlet mode at the two sides can enable the filler of the trapezoid composite flow manual rapid infiltration sewage treatment system to be less prone to blockage and more stable in operation.
(4) Easy maintenance and management
The trapezoid compound flow manual rapid infiltration tank and the combined tank have the advantages of simple treatment flow, less power equipment, lower level requirement on operation management staff and simple and convenient maintenance and management.
Drawings
FIG. 1 is a schematic structural diagram of a trapezoid composite flow artificial rapid infiltration tank;
FIG. 2 is a schematic diagram of a trapezoidal composite flow artificial fast osmosis sewage treatment system;
in the figure, a rapid infiltration tank body 1, a middle rapid infiltration channel 2, a water distribution ditch 3, a security filtering layer 3.1, a perforated water distribution pipe 3.2, a perforated guide plate 4, a bottom layer channel 4.A, an upper layer channel 4.B, a rectangular channel 4.B1, an inverted trapezoid channel 4.B2, a lower geotechnical filter screen 5, a guide blind ditch 6, a guide layer 6.1, a perforated water collection pipe 6.2, a rapid infiltration packing layer 7, a pebble protection layer 8, an upper geotechnical filter screen 9, a water inlet pipe I, a grid regulating tank II, a rapid filtration tank III, a trapezoid compound flow manual rapid infiltration device IV, a water outlet pipe VI and a backwashing pipe VII.
Detailed Description
The present invention is described in further detail below in conjunction with specific embodiments for understanding by those skilled in the art.
Example 1
The trapezoid compound flow artificial rapid infiltration pond shown in fig. 1 comprises a rapid infiltration pond body 1, wherein the rapid infiltration pond body 1 comprises a middle rapid infiltration channel 2 and water distribution grooves 3 arranged on two sides of the middle rapid infiltration channel 2, a perforated guide plate 4 is vertically arranged between the middle rapid infiltration channel 2 and the water distribution grooves 3, the bottom surface of the middle rapid infiltration channel 2 is lower than the water distribution grooves 3, the water distribution grooves 3 comprise a security filter layer 3.1 at the bottom, a perforated water distribution pipe 3.2 is paved on the security filter layer 3.1, and water distribution holes are formed in the perforated water distribution pipe 3.2; the security filter layer 3.1 consists of gravel with a thickness of 20-30 cm. The middle rapid infiltration channel 2 is divided into a bottom channel 4.A and an upper channel 4.B from bottom to top, a lower geotechnical filter screen 5 is laid between the bottom channel 4.A and the upper channel 4.B, a diversion blind ditch 6 is arranged in the bottom channel 4.A, the diversion blind ditch 6 comprises a diversion layer 6.1 and a perforated water collecting pipe 6.2 which horizontally penetrates through the diversion layer 6.1, and the specification of the diversion blind ditch 6 is 0.3x0.3m; the flow guiding layer 6.1 is formed by pebbles with the thickness of 30cm, and the particle size of the pebbles in the flow guiding layer 6.1 is 30-50 mm;
the upper layer channel 4.B is composed of a rectangular channel 4.B1 and an inverted trapezoid channel 4.B2, the bottom of a security filtering layer 3.1 of the water distribution ditch 3 is higher than the rectangular channel 4.B1, the upper layer channel 4.B is filled with a quick-permeation packing layer 7 and a pebble protecting layer 8, the quick-permeation packing layer 7 is paved in the rectangular channel 4.B1 and the inverted trapezoid channel 4.B2, and the upper parts of the pebble protecting layer 8 and the quick-permeation packing layer 7 are hollow to form an inverted trapezoid structure; the thickness of the pebble protective layer 8 is 10cm, and the grain diameter is 30-50 mm; an upper geotechnical filter screen 9 is arranged between the rapid infiltration packing layer 7 and the pebble protective layer 8. The specification of the upper geotechnical filter screen 9 and the lower geotechnical filter screen 5 is not less than 200g/m 2
The grain diameter of the gravel is the same as that of the filler of the rapid infiltration filler layer; the thickness and type of the filler of the quick-permeation filler layer 7 are comprehensively determined according to the quality of water inlet and outlet, hydraulic load and the like.
Example 2
The trapezoid compound flow artificial rapid infiltration sewage treatment system shown in fig. 1-2 comprises a water inlet pipe I, wherein the water inlet pipe is sequentially connected with a grid regulating tank II, a rapid filter tank III, a trapezoid compound flow artificial rapid infiltration device IV and a water outlet pipe VI, the rapid filter tank III is connected with the water inlet pipe I through a backwash pipe VII, and the trapezoid compound flow artificial rapid infiltration device IV is the trapezoid compound flow artificial rapid infiltration tank.
Other parts not described in detail are prior art. Although the foregoing embodiments have been described in some, but not all, embodiments of the invention, it should be understood that other embodiments may be devised in accordance with the present embodiments without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a artifical quick infiltration pond of trapezoidal complex flow, it includes quick infiltration cell body (1), quick infiltration cell body (1) are interior including middle quick infiltration passageway (2) and water distribution ditch (3) of setting in middle quick infiltration passageway (2) both sides, vertically be provided with perforation guide plate (4) between middle quick infiltration passageway (2) and water distribution ditch (3), middle quick infiltration passageway (2) bottom surface is less than water distribution ditch (3), middle quick infiltration passageway (2) are by supreme bottom passageway (4.a) and the upper layer passageway (4.b) of dividing into down, spread lower floor's geotechnical filter screen (5) between bottom passageway (4.a) and the upper layer passageway (4.b), be provided with water conservancy diversion blind ditch (6) in bottom passageway (4.a), water conservancy diversion blind ditch (6) include water conservancy diversion layer (6.1) and horizontal perforation pipe (6.2) that run through water conservancy diversion layer (6.1), upper layer passageway (4.b) are by rectangle passageway (4.1) and reverse trapezoidal channel (4.b) and are filled in trapezoid filler layer (7.7.7 and the portion (8) of the quick infiltration layer (7.b) and are filled in trapezoid filler layer (4.7; an upper geotechnical filter screen (9) is arranged between the rapid infiltration packing layer (7) and the pebble protective layer (8); the water distribution ditch (3) comprises a security filter layer (3.1) at the bottom, and the security filter layer (3.1)) A perforated water distribution pipe (3.2) is paved on the water distribution pipe, and water distribution holes are formed in the perforated water distribution pipe (3.2); the bottom of a security filter layer (3.1) of the water distribution ditch (3) is higher than the rectangular channel (4.b1), and the security filter layer (3.1) consists of gravel with the thickness of 20-30 cm; the flow guiding layer (6.1) is formed by pebbles with the thickness of 20-50 cm, and the particle size of the pebbles in the flow guiding layer (6.1) is 30-50 mm; the specifications of the upper geotechnical filter screen (9) and the lower geotechnical filter screen (5) are not less than 200g/m 2 。
2. The trapezoidal composite flow artificial rapid infiltration tank according to claim 1, wherein: the thickness of the pebble protective layer (8) is 8-15 cm, and the particle size is 30-50 mm.
3. The trapezoid composite flow artificial rapid infiltration sewage treatment system according to claim 1, comprising a water inlet pipe, wherein the water inlet pipe is sequentially connected with a grid regulating tank rapid filter, a trapezoid composite flow artificial rapid infiltration device and a water outlet pipe, and the rapid filter is connected with the water inlet pipe through a backwashing pipe, and is characterized in that: the trapezoid compound flow artificial rapid infiltration device is the trapezoid compound flow artificial rapid infiltration tank of claim 1;
or the artificial rapid infiltration tank is formed by connecting a plurality of trapezoid compound flow artificial rapid infiltration tanks in an end-to-end manner according to claim 1;
or a plurality of trapezoid compound flow artificial rapid infiltration tanks according to claim 1 are arranged side by side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910334668.2A CN110127935B (en) | 2019-04-24 | 2019-04-24 | Trapezoidal composite flow artificial rapid infiltration tank and sewage treatment system thereof |
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| CN201910334668.2A CN110127935B (en) | 2019-04-24 | 2019-04-24 | Trapezoidal composite flow artificial rapid infiltration tank and sewage treatment system thereof |
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| CN110127935A CN110127935A (en) | 2019-08-16 |
| CN110127935B true CN110127935B (en) | 2024-04-16 |
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|---|---|---|---|---|
| CN102210961A (en) * | 2011-06-16 | 2011-10-12 | 苏州森泰动力环保工程有限公司 | Washing tower |
| CN102674580A (en) * | 2012-05-25 | 2012-09-19 | 北京嘉博文生物科技有限公司 | Automatic slag scraping and oil collecting slag, oil, sludge and sewage four-phase separation equipment |
| CN104176882A (en) * | 2014-08-12 | 2014-12-03 | 中国科学院水生生物研究所 | Water feeding method and device for improving nitrogen removal efficiency of constructed infiltration system |
| CN206955835U (en) * | 2017-05-27 | 2018-02-02 | 湖南博世科环保科技有限公司 | A kind of sewage disposal system |
| WO2018129895A1 (en) * | 2017-01-16 | 2018-07-19 | 深圳市碧园环保技术有限公司 | Treatment system for rural domestic sewage |
| CN108408918A (en) * | 2018-05-29 | 2018-08-17 | 深圳市绿洲生态科技有限公司 | Ecological continuous filter |
| CN210261448U (en) * | 2019-04-24 | 2020-04-07 | 长江勘测规划设计研究有限责任公司 | Trapezoidal composite flow artificial rapid infiltration tank and sewage treatment system thereof |
-
2019
- 2019-04-24 CN CN201910334668.2A patent/CN110127935B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210961A (en) * | 2011-06-16 | 2011-10-12 | 苏州森泰动力环保工程有限公司 | Washing tower |
| CN102674580A (en) * | 2012-05-25 | 2012-09-19 | 北京嘉博文生物科技有限公司 | Automatic slag scraping and oil collecting slag, oil, sludge and sewage four-phase separation equipment |
| CN104176882A (en) * | 2014-08-12 | 2014-12-03 | 中国科学院水生生物研究所 | Water feeding method and device for improving nitrogen removal efficiency of constructed infiltration system |
| WO2018129895A1 (en) * | 2017-01-16 | 2018-07-19 | 深圳市碧园环保技术有限公司 | Treatment system for rural domestic sewage |
| CN206955835U (en) * | 2017-05-27 | 2018-02-02 | 湖南博世科环保科技有限公司 | A kind of sewage disposal system |
| CN108408918A (en) * | 2018-05-29 | 2018-08-17 | 深圳市绿洲生态科技有限公司 | Ecological continuous filter |
| CN210261448U (en) * | 2019-04-24 | 2020-04-07 | 长江勘测规划设计研究有限责任公司 | Trapezoidal composite flow artificial rapid infiltration tank and sewage treatment system thereof |
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