CN112830583A - Anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank - Google Patents
Anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank Download PDFInfo
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- CN112830583A CN112830583A CN202110077748.1A CN202110077748A CN112830583A CN 112830583 A CN112830583 A CN 112830583A CN 202110077748 A CN202110077748 A CN 202110077748A CN 112830583 A CN112830583 A CN 112830583A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 40
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 29
- 239000011574 phosphorus Substances 0.000 title claims abstract description 29
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 238000009826 distribution Methods 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000000746 purification Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 7
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- -1 hydroxyl ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Images
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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses an anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank, which comprises a filter tank main body and a water distributor fixedly arranged above the filter tank main body. The filter body comprises a capillary water distribution and suspended matter interception layer, a dephosphorization slow-release filter material layer, a biological membrane purification layer and a drainage layer which are sequentially arranged from top to bottom. The top interval of filtering pond main part is provided with and is used for gathering a plurality of low ditch ditches of capillary water distribution and suspended solid that the suspended solid entrapment layer was held back in order to prevent the wetland jam, and the degree of depth of low ditch is 15 ~ 25 cm. According to the invention, the plurality of low pit channels are arranged at the top of the filter tank main body, so that the water entering the filter tank can seep from the surface and enter the lower-layer filter material like a common wetland, more water flows to the low pits under the influence of gravity and then enters the filter material from the bottom of the channel, the surface blockage of the filter tank is mostly generated at the bottom of the low pit channel, and after the bottom of the low pit channel is blocked, sewage can still enter the lower-layer filter material from two sides of the low pit channel, the blockage of the filter tank is well delayed, and the service life of the filter tank is greatly prolonged.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to an anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank.
Background
Artificial wetlands and biofilters are two main modes for sewage purification. The constructed wetland has high purification efficiency, but has lower load, larger required area and easy blockage. Most of the existing operational artificial wetland systems have the problem of blockage within 3-5 years after being put into use, so that the hydraulic conductivity coefficient is reduced, the decontamination effect is poor, and the operation life is shortened. The wetland blockage mainly occurs in 0-15cm of surface matrix around the water distribution system, and the three stages of the blockage are as follows: 1. permeability is near the initial operating level but in a downward trend; 2. the permeation rate is slowly and stably reduced; 3. the surface of the substrate is intermittently infiltrated until water accumulation continues. The biological filter has high load, but low purification efficiency, and the whole filter is usually complex in structure, high in manufacturing cost and long in construction period.
Phosphorus has different properties from organic matters, nitrogen and sulfur, is extremely difficult to be converted into gas state in both oxidation state and reduction state and is transferred into the atmosphere, and generally, the phosphorus can be concentrated into insoluble or water-insoluble solid only by a physical and chemical method or a biological method and then is further separated from water, thereby realizing the phosphorus removal process.
The traditional artificial wetland generally comprises wetland filter materials, plants and the like, and the phosphorus removal mechanism of the wetland comprises the following steps: the absorption and accumulation of plants, the assimilation of microorganisms, the excessive phosphorus uptake of phosphorus-accumulating bacteria under aerobic conditions, and the adsorption and exchange of wetland filter materials. As plants grow slowly; the microorganism has the functions of aerobic phosphorus uptake and anaerobic phosphorus release; and the traditional constructed wetland filter material mainly comprises gravels, gravels and the like, and releasable metal ions (Ca)2+、Fe3+、Al3+And Mg2+Etc.) in a small amount, resulting in a general dephosphorization effect. Therefore, the traditional artificial wetland has limited denitrification and dephosphorization effects. Therefore, it is necessary and urgent to search and develop a sewage treatment system which has a simple structure, good denitrification and dephosphorization effects and is not easy to block.
Disclosure of Invention
Aiming at the technical problems in the background art, the invention aims to provide an enhanced nitrogen and phosphorus removal constructed wetland filter tank which is simple in structure, good in nitrogen and phosphorus removal effect and capable of preventing blockage.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank comprises a filter tank main body and a water distributor fixedly arranged above the filter tank main body. The filter body comprises a capillary water distribution and suspended matter interception layer, a dephosphorization slow-release filter material layer, a biological membrane purification layer and a drainage layer which are sequentially arranged from top to bottom. The top interval of filtering pond main part is provided with and is used for colleting a plurality of low ditch of capillary water distribution and suspended solid that the suspended solid entrapment layer was held back in order to prevent the wetland jam, the degree of depth of low ditch is 15 ~ 25 cm.
Further, the water distributor has the following water inlet modes: the method comprises the steps of periodically feeding water with large water quantity, wherein the water feeding time is 1-5 min each time, and the water stopping time interval is 30-120 min each time.
Further, the inside of drainage blanket is buried underground and is used for the perforation pipe with outside direct intercommunication, the diameter of perforation pipe is 350 ~ 400mm, and the left and right sides symmetry of perforation pipe is equipped with a plurality of gashes of evenly arranging, the length of gash is 200 ~ 250mm, and the width is 2 ~ 5 mm.
Preferably, the low ditches are arranged in parallel, and the interval between any two adjacent low ditches is 100-300 cm.
Preferably, the slope ratio of the two ends of the low trench is 1: 2-1: 3.
Preferably, the width of the low trench is 60-100 cm.
Preferably, the cross-sectional shape of the low trench is one of a semicircle, a semi-ellipse, a square, an inverted triangle and an inverted trapezoid.
Further, the water-locator include that the water intaking is responsible for and is responsible for a plurality of water distribution branch pipes that the parallel interval in both sides set up along intaking, the front end that the water intaking was responsible for is connected with the water pump that is used for realizing intermittent type nature water supply, water distribution branch pipe evenly laid the water distribution head with adjustable a plurality of along length direction. Through setting up the water pump, can realize intermittent type nature water supply for the sewage purification effect of ecological filter is better, makes the filter material more even abundant to the filtration purification of sewage.
Preferably, the interval between any two adjacent water distribution branch pipes is 80-120 cm, and the adjustable water distribution head and the low pit canal are arranged in a staggered mode.
Furthermore, the filter material filled in the capillary water distribution and suspended matter interception layer is graded medium coarse sand, and the filter material filled in the drainage layer is broken stone. The particle size of the filter material filled in the capillary water distribution and suspended matter interception layer and the particle size of the filter material filled in the biological membrane purification layer are both smaller than the particle size of the dephosphorization slow-release filter material, and the particle size of the crushed stone filled in the drainage layer is larger than the particle size of the dephosphorization slow-release filter material.
The invention has the following beneficial effects: the anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank is provided, a plurality of low pit channels are arranged at the top of a filter tank main body, so that the water fed into the filter tank can seep and flow into the lower layer of filter material from the surface like a common wetland, more water flows to the low pits under the influence of gravity and then enters the filter material from the bottom of the channel, and the surface blockage of the filter tank is frequently generated at the bottom of the low pit channels; when the bottom of the low pit canal is blocked, sewage can still enter the lower-layer filter material from two sides of the low pit canal, so that the blocking of the filter pool is well delayed, the service life of the filter pool is greatly prolonged, and meanwhile, the blocking position is relatively fixed, and the maintenance and subsequent cleaning of the artificial wetland filter pool are simpler and faster.
The water inlet mode adopts periodic large-water-volume water inlet (the water inlet time is 1-5 min), so that uniform water distribution is facilitated, and suspended matters intercepted by the suspended matter interception layer are promoted to be collected to the low tunnel; when water inflow is stopped (30-120 min), the interior of the filter tank is in a semi-dry state after underwater infiltration, so that the convection of air in the filter tank can be promoted, and the formation of a biological membrane and the purification of pollutants are facilitated. The drainage mode is that the perforated pipe is buried in the coarse grain drainage layer and is directly communicated with the outside, the water flow in the pipe is in a non-full pipe state, the lower half part in the pipe is used as a water outlet channel, and the upper half part is used as an air convection channel, so that the air convection in the filter chamber is promoted.
Drawings
Fig. 1 is a schematic plan view of the present invention.
FIG. 2 is a schematic cross-sectional flow diagram of the present invention.
FIG. 3 is a schematic view of water flow after plugging of the low trench.
Fig. 4 is a schematic view of air convection according to the present invention.
Description of the main component symbols: 1. a filter body; 10. a low pit canal; 11. capillary water distribution and suspended matter interception layer; 12. a phosphorus removal slow release filter material layer; 13. a biofilm purification layer; 14. a drainage layer; 20. a water pump; 21. a main water inlet pipe; 22. a water distribution branch pipe; 220. an adjustable water distribution head; d1: the distance between any two adjacent low trench; d2: the width of the low trench; d3: the distance between any two adjacent water distribution branch pipes; h: the depth of the trench is low.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in figures 1-4, the anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter comprises a filter body 1 and a water distributor fixedly arranged above the filter body 1. The filter body 1 comprises a capillary water distribution and suspended matter interception layer 11, a dephosphorization slow-release filter material layer 12, a biological membrane purification layer 13 and a drainage layer 14 which are sequentially arranged from top to bottom, filter materials filled in the capillary water distribution and suspended matter interception layer 11 are coarse sand in grading, the filter materials filled in the drainage layer 14 are gravels, the particle size of the gravels filled in the capillary water distribution and suspended matter interception layer 11 and the particle size of the filter materials filled in the biological membrane purification layer 13 are both smaller than the particle size of the dephosphorization slow-release filter material, and the particle size of the gravels filled in the drainage layer 14 is larger than the particle size of the dephosphorization.
The water inlet mode of the filter tank adopts periodic large-water-volume water inlet (the water inlet time is 1-5 min), so that uniform water distribution is facilitated, and suspended matters intercepted by a suspended matter intercepting layer are promoted to be collected to a low pit channel; when water inflow is stopped (30-120 min), the interior of the filter tank is in a semi-dry state after underwater infiltration, so that the convection of air in the filter tank can be promoted, and the formation of a biological membrane and the purification of pollutants are facilitated.
The filter is drained in such a way that a perforated pipe 15 is buried in the coarse particle drainage layer 14 and directly communicates with the outside. The diameter of the perforated pipe 15 is 350-400 mm, a plurality of uniformly distributed slots are symmetrically arranged on the left side and the right side of the perforated pipe 15, the length of each slot is 200-250 mm, and the width of each slot is 2-5 mm. The water flow in the perforated pipe 15 is in a non-full pipe state, the lower half part in the perforated pipe 15 is used as a water outlet channel, and the upper half part is used as an air convection channel, so that the air convection in the filter chamber is promoted.
A plurality of low pit canals 10 are arranged at the top of the filter tank main body 1 at intervals, and the depth H of the low pit canals 10 is 15-25 cm. Preferably, the low ditches 10 are arranged in parallel, and the distance D1 between any two adjacent low ditches 10 is 100-300 cm. Preferably, the slope ratio of the two ends of the low trench 10 is 1: 2-1: 3. Preferably, the width D2 of the low trench 10 is 60-100 cm. Preferably, the cross-sectional shape of the low trench 10 is one of semicircular, semi-elliptical, square, inverted triangular, and inverted trapezoidal.
The water distributor comprises a main water inlet pipe 21 and a plurality of water distribution branch pipes 22 arranged in parallel at intervals along two sides of the main water inlet pipe 21, the front end of the main water inlet pipe 21 is connected with a water pump 20 for realizing intermittent water supply, and a plurality of adjustable water distribution heads 220 are uniformly distributed on the water distribution branch pipes 22 along the length direction. Preferably, the distance D3 between any two adjacent water distribution branch pipes 22 is 80-120 cm. Preferably, the adjustable distribution head 220 and the low trench 10 are staggered with respect to each other.
In the invention, the total phosphorus removal is mainly realized by the reaction of metal ions or hydroxyl ions and the like released by the phosphorus removal slow-release filter material with pollutants; the method for removing ammonia nitrogen in the ecological filter tank comprises the absorption action of plants and other organisms, the ammoniation, nitrification and denitrification actions of microorganisms and the volatilization action of ammonia gas, wherein the nitrification and denitrification actions of the microorganisms are the main ecological denitrification mode, and meanwhile, the interior of the ecological filter tank is in an unsaturated state through intermittent water inlet and low-level continuous water outlet of the ecological filter tank, so that the nitrification and denitrification actions of the microorganisms are promoted.
The constructed wetland filter tank is applied to concrete fields, the inflow water and the outflow water passing through the constructed wetland filter tank are respectively detected, and the detection results are shown in table 1. As can be seen from Table 1, the artificial wetland filter tank of the invention has good denitrification and dephosphorization effects.
TABLE 1
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a prevent intensive nitrogen and phosphorus removal constructed wetland filtering pond of jam which characterized in that: including the filtering pond main part with set firmly the water-locator in filtering pond main part top, the filtering pond main part including the capillary water distribution that from top to bottom sets gradually and suspended solid entrapment layer, dephosphorization slow release filter material layer, biomembrane purify layer and drainage blanket, the top interval of filtering pond main part is provided with and is used for collecing a plurality of low tunnel canals of the suspended solid that capillary water distribution and suspended solid entrapment layer held back in order to prevent the wetland jam, the degree of depth of low tunnel canal is 15 ~ 25 cm.
2. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the water inlet mode of the water distributor is as follows: the method comprises the steps of periodically feeding water with large water quantity, wherein the water feeding time is 1-5 min each time, and the water stopping time interval is 30-120 min each time.
3. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the inside of drainage blanket is buried underground and is used for the perforated pipe with outside direct intercommunication, the diameter of perforated pipe is 350 ~ 400mm, and the left and right sides of perforated pipe is equipped with a plurality of gashes of evenly arranging symmetrically, the length of gash is 200 ~ 250mm, and the width is 2 ~ 5 mm.
4. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the low-pit channels are arranged in parallel, and any two adjacent low-pit channels are spaced by 100-300 cm.
5. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the slope ratio of the two ends of the low tunnel is 1: 2-1: 3.
6. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the width of the low pit canal is 60-100 cm.
7. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the cross section of the low pit canal is in one of a semicircular shape, a semi-elliptical shape, a square shape, an inverted triangle shape and an inverted trapezoid shape.
8. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the water distributor comprises a water inlet main pipe and a plurality of water distribution branch pipes arranged along the water inlet main pipe at intervals in parallel at two sides, the front end of the water inlet main pipe is connected with a water pump used for realizing intermittent water supply, and a plurality of adjustable water distribution heads are uniformly distributed on the water distribution branch pipes along the length direction.
9. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 8, which is characterized in that: any two adjacent water distribution branch pipes are spaced by 80-120 cm, and the adjustable water distribution head and the low pit canal are arranged in a staggered mode.
10. The anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank of claim 1, which is characterized in that: the filter material filled in the capillary water distribution and suspended matter interception layer is graded medium coarse sand, the filter material filled in the drainage layer is broken stone, the particle size of the filter material filled in the capillary water distribution and suspended matter interception layer and the particle size of the filter material filled in the biological membrane purification layer are both smaller than the particle size of the dephosphorization slow-release filter material, and the particle size of the broken stone filled in the drainage layer is larger than the particle size of the dephosphorization slow-release filter material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077748.1A CN112830583A (en) | 2021-01-20 | 2021-01-20 | Anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110077748.1A CN112830583A (en) | 2021-01-20 | 2021-01-20 | Anti-clogging enhanced nitrogen and phosphorus removal constructed wetland filter tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116903183A (en) * | 2023-08-04 | 2023-10-20 | 南京柯若环境技术有限公司 | Combined type flood wetland system and method for treating pond culture wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773833A (en) * | 2015-03-30 | 2015-07-15 | 浙江省环境保护科学设计研究院 | Water distribution apparatus for improving water distribution to prevent stink overflow |
| CN104817181A (en) * | 2015-04-17 | 2015-08-05 | 山东大学 | Concave-convex type reinforcement surface flow constructed wetland system |
| CN111517470A (en) * | 2020-04-29 | 2020-08-11 | 水利部交通运输部国家能源局南京水利科学研究院 | Anti-clogging high-efficiency denitrification and phosphorus removal constructed wetland substrate, constructed wetland and method |
| CN112047482A (en) * | 2020-08-24 | 2020-12-08 | 同济大学建筑设计研究院(集团)有限公司 | Vertical subsurface flow wetland and water distribution method |
-
2021
- 2021-01-20 CN CN202110077748.1A patent/CN112830583A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773833A (en) * | 2015-03-30 | 2015-07-15 | 浙江省环境保护科学设计研究院 | Water distribution apparatus for improving water distribution to prevent stink overflow |
| CN104817181A (en) * | 2015-04-17 | 2015-08-05 | 山东大学 | Concave-convex type reinforcement surface flow constructed wetland system |
| CN111517470A (en) * | 2020-04-29 | 2020-08-11 | 水利部交通运输部国家能源局南京水利科学研究院 | Anti-clogging high-efficiency denitrification and phosphorus removal constructed wetland substrate, constructed wetland and method |
| CN112047482A (en) * | 2020-08-24 | 2020-12-08 | 同济大学建筑设计研究院(集团)有限公司 | Vertical subsurface flow wetland and water distribution method |
Non-Patent Citations (2)
| Title |
|---|
| 李灵娜: "《农村生活污水处理工艺与技术应用》", 31 May 2019, 延边大学出版社 * |
| 魏永纯等: "《地下水人工补给与地下水库》", 31 May 1979, 水利电力出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116903183A (en) * | 2023-08-04 | 2023-10-20 | 南京柯若环境技术有限公司 | Combined type flood wetland system and method for treating pond culture wastewater |
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