CN108726686B - Natural reoxygenation constructed wetland sewage treatment system - Google Patents
Natural reoxygenation constructed wetland sewage treatment system Download PDFInfo
- Publication number
- CN108726686B CN108726686B CN201810934415.4A CN201810934415A CN108726686B CN 108726686 B CN108726686 B CN 108726686B CN 201810934415 A CN201810934415 A CN 201810934415A CN 108726686 B CN108726686 B CN 108726686B
- Authority
- CN
- China
- Prior art keywords
- constructed wetland
- pipe
- tank body
- filler layer
- overflow weir
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 43
- 239000000945 filler Substances 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 22
- 241000196324 Embryophyta Species 0.000 claims description 12
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 9
- 229910021536 Zeolite Inorganic materials 0.000 claims description 8
- 239000010457 zeolite Substances 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 6
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 6
- 235000005273 Canna coccinea Nutrition 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 241000233948 Typha Species 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 240000008555 Canna flaccida Species 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 abstract description 11
- 239000001301 oxygen Substances 0.000 abstract description 11
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 210000005056 cell body Anatomy 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000234587 Canna Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910017119 AlPO Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000126 substance 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/18—PO4-P
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
-
- 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
- C02F2303/04—Disinfection
-
- 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
Abstract
The invention provides a natural reoxygenation constructed wetland sewage treatment system, which comprises a constructed wetland tank body, wherein the constructed wetland tank body consists of a substrate and surrounding masonry surrounding edges, a filler layer is arranged inside the constructed wetland tank body, wetland plants are planted at the top of the filler layer, a radially arranged water distribution weir is arranged along the masonry surrounding edges at one side of the constructed wetland tank body, a water inlet pipe is arranged inside the constructed wetland tank body, a plurality of transversely arranged open overflow weir grooves are arranged at the top of the filler layer, one end of the open overflow weir grooves is communicated with the water distribution weir, a water collecting pipe is arranged in the filler layer at the other side of the constructed wetland tank body, ventilation devices are arranged between two adjacent overflow weir grooves and between the overflow weir grooves at two sides and the masonry surrounding edges of the constructed wetland tank body, each ventilation device comprises a plurality of ventilation pipes which are uniformly arranged at intervals along the transverse direction, the transverse arrangement length of each ventilation pipe is the same as the length of each overflow weir groove, and the top surface of each ventilation pipe is higher than the top surface of the filler layer. The invention increases the concentration of deep oxygen of the filler, ensures the continuous operation of the constructed wetland and can effectively relieve the blockage of the filler layer.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a natural reoxygenation constructed wetland sewage treatment system.
Background
The constructed wetland is a sewage treatment technology with low investment, low energy consumption and strong impact resistance. It mainly utilizes the physical, chemical and biological actions of plant, microbe and filler to attain the goal of purifying sewage. The constructed wetland has simple operation, maintenance and management, and is very suitable for the treatment of decentralized sewage in rural areas, tourist attractions, expressway service areas and the like.
The filler plays an important role in the operation effect of the constructed wetland sewage treatment system. The filler is an adhesion matrix for microorganisms and also a growth matrix for plants, and the performance of the filler determines the degradation efficiency of the microorganisms and plants on pollutants. Meanwhile, the filler has an adsorption function on pollutants, the wetland filler can enhance the capability of a system for removing pollutants (especially nitrogen and phosphorus), and the wetland filler is an important guarantee for the quality of effluent.
Although the constructed wetland has the advantage of simple maintenance, in long-term operation, due to the anaerobic environment of the bottom filler, the formed biomembrane is not easy to decompose, the blockage phenomenon of the filler of the wetland can occur, the sewage treatment efficiency of the wetland is affected, and the modes of filler replacement, dynamic aeration and the like are adopted, so that the constructed wetland has higher maintenance cost and huge engineering quantity, and the wide application of the constructed wetland is limited.
Disclosure of Invention
The invention aims to solve the technical problems by providing a natural reoxygenation artificial wetland sewage treatment system, which adopts a mode of installing an open water distribution weir groove and a vent pipe to increase the concentration of deep oxygen of filler, ensure the continuous operation of the artificial wetland and effectively relieve the blockage of a filler layer.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a natural reoxygenation constructed wetland sewage treatment system, includes constructed wetland cell body, constructed wetland cell body comprises basement and brickwork surrounding edge all around, and the inside packing layer that sets up of constructed wetland cell body, the wetland plant is planted at packing layer top, and the packing layer top surface is equipped with radial distribution weir along constructed wetland cell body one side brickwork surrounding edge, be equipped with the inlet tube in the distribution weir, the packing layer top surface is equipped with the open overflow weir groove of several transverse arrangement, overflow weir groove one end is linked together with the water distribution weir, is equipped with the collector pipe in the packing layer of constructed wetland cell body opposite side, all is equipped with ventilation unit between two adjacent overflow weir grooves and between the brickwork surrounding edge that lies in both sides overflow weir groove and constructed wetland cell body, and ventilation unit includes the ventilation pipe that several ventilation pipes set up along horizontal even interval, and the length of overflow weir is the same that the length of several ventilation pipe top surface is higher than the packing layer top surface.
According to the scheme, the packing layer is divided into three layers from bottom to top, namely a zeolite packing layer, a light ceramsite packing layer and a river sand packing layer in sequence.
According to the scheme, the floor drain is arranged at the top of the vent pipe, and a plurality of vent holes are uniformly arranged on the pipe wall at intervals at the lower part.
According to the scheme, the water collecting pipe consists of a straight pipe and a right-angle bent pipe, the straight pipe is laid at the bottom of the packing layer at the other side of the constructed wetland tank body along the radial direction, water collecting holes are uniformly distributed on the pipe wall, the end head of the vertical section of the right-angle bent pipe is communicated with the center of the pipe wall of the straight pipe, and the end head of the horizontal section of the right-angle bent pipe penetrates out of the surrounding edge of the masonry at the other side of the constructed wetland tank body.
According to the scheme, the substrate comprises a concrete cushion layer and a reinforced concrete bottom plate paved on the top of the concrete cushion layer.
According to the scheme, the top of the overflow weir groove is serrated.
According to the scheme, the wetland plant is one or more of canna, typha and reed.
According to the scheme, the vent pipe and the water collecting pipe are UPVC pipes.
The beneficial effects of the invention are as follows: 1. the sewage treatment system of the natural reoxygenation constructed wetland is provided, and a water distribution weir and an open water distribution overflow weir groove are arranged at the top of a packing layer, so that on one hand, a uniform water distribution effect can be achieved, on the other hand, the contact area and time between sewage and air are increased, the dissolved oxygen concentration of sewage inflow is improved, more dissolved oxygen can be brought into the bottom packing, and the packing is prevented from being blocked; 2. the perforated breather pipe penetrating through the wetland system is perforated at the lower part, so that sewage in the filler layer flows in and out, the upper part is communicated with external air, the air can naturally enter, oxygen is provided for the underfilling and the sewage in the underfilling, an additional power aeration device is not needed, the oxygen content at the bottom of the wetland is increased, the microbial activity can be improved, the biochemical reaction rate is improved, the biological film degradation rate is accelerated, and the filler blockage can be prevented; 3. the open water distribution weir groove and the water collecting pipe at the bottom are beneficial to uniform water distribution of the constructed wetland system, water path dead angles are prevented from occurring, sewage can be ensured to uniformly pass through each layer of filler, the sewage reaction time is prolonged, and the treatment efficiency of the wetland is improved.
Drawings
FIG. 1 is a top view of one embodiment of the present invention.
Fig. 2 is a cross-sectional view of one embodiment of the present invention.
Fig. 3 is a side view of one embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention taken in conjunction with the accompanying drawings and examples.
As shown in figures 1-3, the natural reoxygenation constructed wetland sewage treatment system comprises a constructed wetland tank body 1, wherein the constructed wetland tank body consists of a substrate and surrounding edges of surrounding brickworks, a filler layer is arranged inside the constructed wetland sewage treatment system, wetland plants 11 are planted at the top of the filler layer, and the wetland plants are one or more of canna, typha and reed. The top surface of the filler layer is provided with a water distribution weir 2 which is radially arranged along the peripheral edge of a masonry on one side of the constructed wetland tank body, a water inlet pipe 3 is arranged in the water distribution weir, the top surface of the filler layer is provided with a plurality of transversely arranged open overflow weir grooves 4, the tops of the overflow weir grooves are in a zigzag shape, one end of each overflow weir groove is communicated with the water distribution weir, the filler layer on the other side of the constructed wetland tank body is provided with a water collecting pipe 5, ventilation devices are arranged between two adjacent overflow weir grooves and between the overflow weir grooves on two sides and the peripheral edge of the masonry of the constructed wetland tank body, each ventilation device comprises a plurality of ventilation pipes 6 which are transversely uniformly arranged at intervals, the transverse arrangement length of the plurality of ventilation pipes is the same as the length of the overflow weir grooves, and the top surface of each ventilation pipe is higher than the top surface of the filler layer.
The filler layer is divided into three layers from bottom to top, namely a zeolite filler layer 7, a light ceramsite filler layer 8 and a river sand filler layer 9, and the zeolite has better adsorption to ammonia nitrogen due to the unique crystal structure, the adsorption capacity of the modified zeolite to ammonia nitrogen is higher, and the zeolite is used as a denitrification filler, so that the ammonia nitrogen removal effect of the wetland can be greatly improved; the middle layer adopts light ceramsite as a filler, the light ceramsite has larger porosity and stronger adsorption capacity, and the removal of various pollutants is obvious; and the lightweight ceramsite contains iron, aluminum and calciumThe metal minerals have strong adsorption capacity to phosphorus, and Fe is formed in sewage 2+ 、Fe 3+ 、Ca 2+ 、Al 3+ Plasma metal ion, and PO in sewage 4 3- A precipitate is formed, P in the sewage is removed, and the reaction is as follows:
Fe 3+ +PO 4 3- ＝FePO 4 ↓ (1)
Fe 2+ +PO 4 3- ＝Fe3(PO 4 )2↓ (2)
3Ca 2+ +2PO 4 3- ＝Ca 3 (PO 4 ) 2 ↓ (3)
Al 3+ +PO 4 3- ＝AlPO 4 ↓ (4)
the breather pipe is a UPVC pipe, the top is provided with a floor drain to prevent the fallen leaves of the wetland plants from falling into the pipe, and a plurality of vent holes 10 are uniformly arranged on the pipe wall at intervals at the lower part.
The water collecting pipe is a UPVC pipe and consists of a straight pipe and a right-angle bent pipe, the straight pipe is laid at the bottom of a filler layer at the other side of the constructed wetland tank body along the radial direction, water collecting holes are uniformly distributed on the pipe wall, the end head of the vertical section of the right-angle bent pipe is communicated with the center of the pipe wall of the straight pipe, and the end head of the horizontal section of the right-angle bent pipe penetrates out of the surrounding edge of the masonry at the other side of the constructed wetland tank body.
The basement includes concrete cushion and lays in the reinforced concrete bottom plate at concrete cushion top, sets up concrete cushion, prevents sewage seepage and cell body subsides.
Example 1
The water distribution weir is internally provided with a water inlet pipe, so that the pretreated sewage enters the constructed wetland system, the other end of the water distribution weir groove is provided with three open overflow weir grooves, the open overflow weir grooves are paved at the top of the packing layer, the upper parts of the open overflow weir grooves are in a zigzag shape, the heights of the saw teeth at the upper parts are 5cm, and the water collecting depth at the lower parts is 10cm.
The filler layer comprises a zeolite filler layer, a light ceramsite filler layer and a river sand filler layer which are sequentially arranged from bottom to top. The grain diameter of zeolite is 2.5-3.5cm, and the thickness of packing layer is 30cm; the grain diameter of the light ceramsite is 1-2.5cm, and the thickness of the packing layer is 30cm; the grain size of river sand is 0.5-1cm, and the thickness of the packing layer is 20cm.
The vent pipe is made of UPVC material, the pipe diameter DN is 200mm, the length is 1.0m, vent holes are formed in the part of the pipe wall of 50-80cm below the vent pipe, the cross section of the vent pipe is 0 degree, 180 degrees, plus or minus 45 degrees, plus or minus 90 degrees and plus or minus 135 degrees, eight vent holes are formed along the axial direction, the aperture of the vent holes is 1.0-2.0cm, and the distance between the vent holes is 10cm.
The water collecting pipe is made of UPVC material, four water collecting holes are axially formed in the directions of +/-45 degrees and +/-135 degrees of the cross section of the water pipe, the aperture of the water collecting holes is 0.8-1.5cm, and the distance between the openings is 10-20cm.
The artificial wetland system has the working process that sewage enters the water distribution weir from a water inlet pipe at one side of the water distribution weir, stays briefly in the water distribution weir, flows into three open overflow weir grooves, and the sewage in the water distribution weir and the open overflow weir grooves is in direct contact with the air at the upper part, so that the dissolved oxygen content of the sewage is improved. Sewage overflows from the sawtooth at the top of the open overflow weir groove into the artificial wetland, and sequentially passes through the river sand layer, the light ceramsite layer and the zeolite layer from top to bottom. The packing layer is internally provided with a plurality of perforated vent pipes, so that external air can naturally enter the packing layer, and the oxygen content in the packing is increased. The filler layer contains a large number of various microorganisms, and the microorganisms utilize oxygen to oxidize and decompose various pollutants in the sewage. Meanwhile, the filler can adsorb and retain pollutants in the sewage for microbial decomposition and utilization. The wetland plants can also adsorb and utilize pollutants in water through root systems. The whole constructed wetland system removes COD, BOD, N, P, SS and various pathogenic bacteria in the sewage by the combined action of plants, filter materials and microorganisms, and purifies the sewage. The sewage is discharged out of the wetland system through a perforated water collecting pipe arranged at the bottom of the filler.
By arranging the open overflow weir groove and the perforated vent pipe penetrating through the filter material layer, the oxygen content of sewage and the deep filling layer is improved, the biochemical reaction rate of microorganisms is accelerated, and the removal and decomposition of pollutants in the sewage are accelerated. The constructed wetland system has a simple structure and has a good removal effect on the nutrient elements N, P. Air can enter the filler bottom layer independently to supply oxygen to the bottom filler without power, so that the construction cost and the system energy consumption are saved.
Claims (6)
1. The natural reoxygenation constructed wetland sewage treatment system comprises a constructed wetland tank body, wherein the constructed wetland tank body consists of a substrate and surrounding edges of brickworks, a filler layer is arranged in the constructed wetland tank body, wetland plants are planted at the top of the filler layer, a radially arranged water distribution weir is arranged on the top surface of the filler layer along the surrounding edges of the brickworks at one side of the constructed wetland tank body, a water inlet pipe is arranged in the water distribution weir, a plurality of transversely arranged open overflow weir grooves are arranged on the top surface of the filler layer, one end of each overflow weir groove is communicated with the water distribution weir, a water collecting pipe is arranged in the filler layer at the other side of the constructed wetland tank body, ventilation devices are arranged between two adjacent overflow weir grooves and between the overflow weir grooves at two sides and the surrounding edges of the brickworks of the constructed wetland tank body, each ventilation device comprises a plurality of ventilation pipes which are arranged at equal intervals along the transverse direction, and the length of the plurality of ventilation pipes is equal to the length of the overflow weir grooves, and the top surface of each ventilation pipe is higher than the top surface of the filler layer; the top of the vent pipe is provided with a floor drain, and the pipe wall of the lower part is uniformly provided with a plurality of vent holes at intervals; the water collecting pipe is composed of a straight pipe and a right-angle bent pipe, the straight pipe is laid at the bottom of a packing layer at the other side of the constructed wetland tank body along the radial direction, water collecting holes are uniformly distributed on the pipe wall, the end head of the vertical section of the right-angle bent pipe is communicated with the center of the pipe wall of the straight pipe, and the end head of the horizontal section of the right-angle bent pipe penetrates out of the surrounding edge of the masonry at the other side of the constructed wetland tank body.
2. The natural reoxygenation constructed wetland sewage treatment system according to claim 1, wherein the filler layer is divided into three layers from bottom to top, namely a zeolite filler layer, a light ceramsite filler layer and a river sand filler layer.
3. The natural reoxygenation constructed wetland sewage treatment system according to claim 1, wherein said substrate comprises a concrete cushion layer and a reinforced concrete floor laid on top of the concrete cushion layer.
4. The natural reoxygenation constructed wetland sewage treatment system according to claim 1, wherein the top of said overflow weir trough is serrated.
5. The natural reoxygenation constructed wetland sewage treatment system according to claim 1, wherein said wetland plant is one or more of canna, typha and reed.
6. The natural reoxygenation constructed wetland sewage treatment system according to claim 1, wherein the ventilating pipe and the water collecting pipe are UPVC pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934415.4A CN108726686B (en) | 2018-08-16 | 2018-08-16 | Natural reoxygenation constructed wetland sewage treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810934415.4A CN108726686B (en) | 2018-08-16 | 2018-08-16 | Natural reoxygenation constructed wetland sewage treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108726686A CN108726686A (en) | 2018-11-02 |
| CN108726686B true CN108726686B (en) | 2024-04-09 |
Family
ID=63942991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810934415.4A Active CN108726686B (en) | 2018-08-16 | 2018-08-16 | Natural reoxygenation constructed wetland sewage treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108726686B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111018252A (en) * | 2019-12-27 | 2020-04-17 | 中煤紫光湖北环保科技有限公司 | Multifunctional composite type artificial wetland sewage treatment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274798A (en) * | 2008-05-16 | 2008-10-01 | 哈尔滨工业大学 | Composite constructed wetland system and pretreatment method for drinking water source |
| WO2012161392A1 (en) * | 2011-05-24 | 2012-11-29 | 주식회사 성일엔텍 | Hybrid artificial wetland water purification system, sewage treatment device using same, and natural nonpoint purification device capable of simultaneously purifying river and lake water |
| CN105753166A (en) * | 2016-04-27 | 2016-07-13 | 北京伊普国际水务有限公司 | Horizontal subsurface flow-two-level oxygenating vertical subsurface flow constructed wetland sewage treatment system and method |
| CN208857001U (en) * | 2018-08-16 | 2019-05-14 | 武汉紫光能控科技有限公司 | A kind of natural reaeration artificial marsh sewage treatment system |
-
2018
- 2018-08-16 CN CN201810934415.4A patent/CN108726686B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274798A (en) * | 2008-05-16 | 2008-10-01 | 哈尔滨工业大学 | Composite constructed wetland system and pretreatment method for drinking water source |
| WO2012161392A1 (en) * | 2011-05-24 | 2012-11-29 | 주식회사 성일엔텍 | Hybrid artificial wetland water purification system, sewage treatment device using same, and natural nonpoint purification device capable of simultaneously purifying river and lake water |
| CN105753166A (en) * | 2016-04-27 | 2016-07-13 | 北京伊普国际水务有限公司 | Horizontal subsurface flow-two-level oxygenating vertical subsurface flow constructed wetland sewage treatment system and method |
| CN208857001U (en) * | 2018-08-16 | 2019-05-14 | 武汉紫光能控科技有限公司 | A kind of natural reaeration artificial marsh sewage treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108726686A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103172226B (en) | Surface water stagnation type baffling wetland system for synchronously and intensively removing nitrogen, phosphorus and estrogen | |
| CN110127959B (en) | Artificial wetland water purification method | |
| CN101993150A (en) | Compound underflow constructed wetland system | |
| CN107662979A (en) | A kind of practical spoil disposal and anticlogging horizontal plug-flow artificial wet land system | |
| CN202576089U (en) | Ecological combination pond | |
| CN108726686B (en) | Natural reoxygenation constructed wetland sewage treatment system | |
| CN109502751A (en) | A kind of green top partitioning type multistage AO integrated sewage disposal technique | |
| CN109292999B (en) | Aeration strengthened artificial wetland | |
| CN202054672U (en) | Solar greenhouse wetland sewage treatment system | |
| CN109437393B (en) | High-load ecological ground sewage filtering treatment method | |
| CN204237622U (en) | A kind of horizontal subsurface flow wetland system strengthening micropollutant water denitrogenation in winter | |
| CN104326574B (en) | The horizontal subsurface flow wetland system of strengthening micropollutant water denitrogenation in winter | |
| CN207468300U (en) | A kind of practical spoil disposal and anticlogging horizontal plug-flow artificial wet land system | |
| CN208857001U (en) | A kind of natural reaeration artificial marsh sewage treatment system | |
| CN102730900A (en) | Village and town wastewater infiltration combined processing unit | |
| CN202785806U (en) | Unpowered oxygenation ecological filter tank sewage disposal system | |
| CN1583609A (en) | Waste water cryogenic treating apparatus for deaminizating phosphor-removing ventilating layer | |
| CN112408705B (en) | Domestic sewage treatment system with tidal flow percolation system and treatment process | |
| CN115304219A (en) | Integrated equipment and method suitable for rural sewage treatment | |
| CN210133936U (en) | Utilize ecological concrete's annular view water purification constructed wetland system | |
| CN212269787U (en) | Exogenous sewage ecological treatment system | |
| CN108862604B (en) | Netted basalt fiber combined type baffling constructed wetland system | |
| CN202492408U (en) | Pneumatic ecological oxidation ditch | |
| CN112919637A (en) | Vertical-flow constructed wetland sewage treatment device and system | |
| CN218811106U (en) | BMSL-CRI combined rural domestic sewage treatment and recycling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 430200 North Main Building Unit 12, Floor 02, National Geospatial Information Industry Base Phase II, Wuda Science Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province Applicant after: China Coal Ziguang Hubei Environmental Protection Technology Co.,Ltd. Address before: Room 1202, Unit 2, North Building, Xingye Building, Science Park, Wuhan University, No. 1, Wuhan Donghu New Technology Development Zone, Wuhan, Hubei Province Applicant before: WUHAN ZIGUANG CONTROL TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant |