CN114890610A - Photocatalytic reactor and artificial wetland sewage treatment method - Google Patents
Photocatalytic reactor and artificial wetland sewage treatment method Download PDFInfo
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- CN114890610A CN114890610A CN202210234579.2A CN202210234579A CN114890610A CN 114890610 A CN114890610 A CN 114890610A CN 202210234579 A CN202210234579 A CN 202210234579A CN 114890610 A CN114890610 A CN 114890610A
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- artificial wetland
- photocatalytic reactor
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- 230000001699 photocatalysis Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000010865 sewage Substances 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 14
- 239000011574 phosphorus Substances 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 10
- 238000005273 aeration Methods 0.000 claims abstract description 9
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 8
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 8
- 239000006260 foam Substances 0.000 claims abstract description 6
- 239000010453 quartz Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002689 soil Substances 0.000 claims abstract description 6
- 235000019738 Limestone Nutrition 0.000 claims abstract description 5
- 239000006028 limestone Substances 0.000 claims abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 238000006555 catalytic reaction Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000013032 photocatalytic reaction Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 238000000746 purification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 244000205574 Acorus calamus Species 0.000 description 1
- 241000195940 Bryophyta Species 0.000 description 1
- 235000011996 Calamus deerratus Nutrition 0.000 description 1
- 235000005273 Canna coccinea Nutrition 0.000 description 1
- 240000008555 Canna flaccida Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000498251 Hydrilla Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- -1 organic matters Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000010457 zeolite 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
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic 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
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- 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
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Physical Water Treatments (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a photocatalytic reactor and an artificial wetland sewage treatment method, wherein the system comprises a photocatalytic reactor (1), a vertical flow artificial wetland system (2), a parallel flow artificial wetland system (3) and an enhanced dephosphorization oxidation pond system (4); a foam nickel net (5) loaded with titanium dioxide, an ultraviolet lamp (6), a quartz tube (7) and an overflow plate (8) are arranged in the photocatalytic reactor (1); the bottom of the vertical flow artificial wetland system (2) is provided with an aeration pipe (13) which is externally connected with a blower (12); the parallel flow artificial wetland system (3) is filled with gravel filler, polycaprolactone composite carbon source and limestone mixed filler and ecological soil; submerged plants are planted at the bottom of the enhanced phosphorus removal oxidation pond system (4) in a mixed mode. According to the invention, the photocatalytic reactor and the artificial wetland are combined and connected in series, the biodegradability of the tail water is improved through photocatalytic reaction, the nitrogen and phosphorus removal efficiency of the wetland is improved, and the advanced treatment of the tail water is realized.
Description
Technical Field
The invention belongs to the technical field of environmental protection water treatment, and particularly relates to a photocatalytic reactor, an artificial wetland system and a sewage treatment method.
Background
The tail water of the municipal sewage treatment plant has the characteristics of large water quantity, low organic matter concentration, complex components, high nitrogen and phosphorus content and the like. Meanwhile, along with the industrial development, the quantity and the types of refractory organic matters in tail water are continuously increased, and the traditional treatment process cannot meet the gradually-improved effluent discharge requirement. The photocatalytic oxidation technology has a good degradation effect on organic pollutants difficult to degrade, can effectively improve the biodegradability of treated water, and has the advantages of mild reaction conditions, low energy consumption, no secondary pollution, wide application range and the like.
The artificial wetland technology realizes the purification of water by simulating the structure and function of a natural wetland and absorbing or decomposing pollutants such as organic matters, nitrogen, phosphorus and the like in sewage by utilizing the physical, chemical and biological synergistic effects of soil, artificial media, plants and microorganisms. The artificial wetland technology for treating the tail water has the characteristics of low investment and maintenance cost, small secondary pollution and the like, and meets the requirements of modern water treatment development. However, the oxygen content of the traditional subsurface flow constructed wetland is not high, and denitrification lacks a carbon source, so that the removal rate of nitrogen is low.
Therefore, aiming at the defects of the prior art, the photocatalytic oxidation technology is combined with various artificial wetlands, so that the advanced treatment effect of the tail water is improved, and the effect of beautifying the landscape is achieved.
Disclosure of Invention
The technical problem is as follows: the invention aims to provide a photocatalytic reactor and an artificial wetland system to effectively remove pollutants such as refractory organic matters, nitrogen, phosphorus and the like in tail water.
In order to achieve the purpose, the invention provides the following technical scheme:
a photocatalytic reactor and an artificial wetland sewage treatment method comprise a photocatalytic reactor (1), a vertical flow artificial wetland system (2), a parallel flow artificial wetland system (3) and a reinforced dephosphorization oxidation pond system (4), wherein a titanium dioxide-loaded foam nickel net (5), an ultraviolet lamp (6), a quartz tube (7) and an overflow plate (8) are arranged in the photocatalytic reactor (1), the interior of the reactor is divided into a first catalytic reaction zone (9) and a second catalytic reaction zone (10) by the overflow plate (8), wetland plants are distributed on the vertical flow artificial wetland system (2), a water inlet (11) is arranged at the lower part of a water facing surface, an aeration pipe (13) is arranged at the bottom of the reactor, an air blower (12) is connected to the exterior of the reactor, and a water outlet (15) is arranged at the upper part of the reinforced dephosphorization oxidation pond system (4); the biodegradability of tail water is improved through a photocatalytic reactor (1), the tail water enters a vertical flow artificial wetland system (2) through a water inlet (11), sufficient oxygen is provided for the vertical flow artificial wetland system (2) through a micro aeration device, then the tail water sequentially enters a parallel flow artificial wetland system (3) and a reinforced phosphorus removal oxidation pond system (4) through a water distributor, a polycaprolactone composite carbon source in the parallel flow artificial wetland system (3) provides a carbon source for denitrification, and the removal of organic matters, nitrogen, phosphorus and inorganic matters is realized through the combined action of microorganisms, plants and substrates.
The photocatalytic reactor (1) is made of organic glass, the overflow plate (8) divides the reactor into two reaction areas, the oxygen content of water is increased in the overflow process, foam nickel nets (5) loaded with titanium dioxide are arranged on the two sides of the overflow plate (8) and the wall of the reactor, the aperture of each nickel net is 0.50mm, the titanium dioxide is used as a catalyst to promote the oxidation and decomposition of ultraviolet light on organic pollutants, and a quartz tube (7) is sleeved outside the ultraviolet lamp (6) to prevent the generated heat from burning out the lamp tube and influencing the reaction environment.
The vertical flow artificial wetland system (2) is characterized in that the vertical flow artificial wetland system (2) is sequentially filled with 10-20mm of gravel, 5-10mm of zeolite and limestone mixed filler and ecological soil from bottom to top, the thicknesses of the fillers are respectively 30cm, 20cm and 20cm, an aeration pipe is arranged at the bottom of a filler area and is connected with an external air blower, the fillers can effectively cut bubbles, the transfer rate and the utilization rate of oxygen are improved, and the whole vertical flow artificial wetland system (2) is fully enriched with oxygen.
The filler of the parallel flow artificial wetland system (3) is sequentially composed of 10-20mm of gravel, 5-10mm of polycaprolactone composite carbon source, limestone mixed filler and ecological soil from bottom to top, the thickness of the filler is 20cm, and the polycaprolactone composite carbon source is a solid slow-release carbon source and can effectively enhance the denitrification effect of the artificial wetland.
Plants with good ecological value, economic value, aesthetic value and water body purification capacity, such as calamus, reed, pinwheel grass, canna and the like, are planted on the soil layer above the vertical flow artificial wetland system (2) and the parallel flow artificial wetland system (3).
The bottom of the enhanced phosphorus removal oxidation pond system (4) is paved with a mixed filler of gravels and limestone with the thickness of 20cm, submerged plants such as hornworts, hydrilla verticillata, eel crispus and the like are mixed and planted on the filler, and the running water depth is 50 cm.
Has the advantages that:
1. the invention integrates the performance advantages of the photocatalytic reactor (1) and various types of artificial wetlands, improves the biodegradability of tail water by utilizing a photocatalytic oxidation technology, and can effectively remove pollutants such as refractory organic matters, nitrogen, phosphorus and the like in the tail water by combining the synergistic effects of the physical, chemical and biological aspects of the artificial wetlands.
2. The invention adopts the micro-aeration device to aerate the vertical flow artificial wetland system (2), effectively improves the nitration reaction rate and makes full preparation for subsequent denitrification.
3. The polycaprolactone composite carbon source in the parallel flow constructed wetland system (3) can improve the carbon-nitrogen ratio of tail water, provide a carbon source for microbial denitrification and effectively improve the denitrification efficiency.
4. The invention connects the photocatalytic reactor (1) with various types of artificial wetlands in series, can improve the ecological environment, enrich the biological diversity and form a certain landscape while purifying the water quality.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of a photocatalytic reactor and a constructed wetland sewage treatment method of the present invention.
In the figure: the device comprises a photocatalytic reactor 1, a vertical flow artificial wetland system 2, a parallel flow artificial wetland system 3, an enhanced dephosphorization pond system 4, a titanium dioxide-loaded foam nickel net 5, an ultraviolet lamp 6, a quartz tube 7, an overflow plate 8, a first catalytic reaction zone 9, a second catalytic reaction zone 10, a water inlet 11, an air blower 12, an aeration pipe 13, a water distributor 14 and a water outlet 15.
Detailed Description
The invention relates to a photocatalytic reactor and an artificial wetland sewage treatment method, which comprises a photocatalytic reactor (1), a vertical flow artificial wetland system (2), a parallel flow artificial wetland system (3) and an enhanced dephosphorization oxidation pond system (4); a foam nickel screen (5) loaded with titanium dioxide is arranged in the photocatalytic reactor (1), an ultraviolet lamp (6) is arranged in the center of the nickel screen, and a quartz tube (7) is sleeved outside the light source; wetland plants are distributed on the vertical flow artificial wetland system (2), a water inlet (11) is arranged at the lower part of the upstream surface, and an aeration pipe (13) is arranged at the bottom of the vertical flow artificial wetland system and is externally connected with an air blower (12); the upper part of the enhanced phosphorus removal oxidation pond system (4) is provided with a water outlet (15), and submerged plants are planted on the packing layer.
Tail water firstly enters the photocatalytic reactor (1), and pollutants which are difficult to degrade in water are oxidized and decomposed by ultraviolet light under the catalysis of titanium dioxide loaded on a nickel net, so that the biodegradability of the tail water is improved. Tail water enters the vertical flow artificial wetland system (2) through the water inlet (11), the micro-aeration device provides sufficient oxygen for the vertical flow artificial wetland system (2), the filler can effectively cut bubbles, the transfer rate and the utilization rate of the oxygen are improved, the whole vertical flow artificial wetland system (2) is fully rich in oxygen, and the tail water is subjected to nitration reaction under an aerobic condition. Tail water enters the parallel flow artificial wetland system (3) through the water distributor (14) and is subjected to biological denitrification under the anaerobic condition. The polycaprolactone composite carbon source in the filler slowly releases carbon, provides a carbon source for the denitrification of microorganisms, and promotes the denitrification efficiency. And then the tail water enters a reinforced phosphorus removal oxidation pond system (4) to remove phosphorus in the water through the combined action of microorganisms, plants and substrates. The treated water is discharged from the water outlet pipe. The whole treatment process completes purification through the oxidative decomposition of ultraviolet light, the adsorption of the filler and the physical, chemical and biological effects of microorganisms and plant roots.
Many details have been set forth above to provide a thorough understanding of the present invention, which is merely a preferred embodiment of the present invention and is not limiting of its specific implementation. Many possible variations and modifications can be made to the invention by one skilled in the art without departing from the scope of the claims.
Claims (3)
1. A photocatalytic reactor and an artificial wetland sewage treatment method are characterized in that: the system is composed of a photocatalytic reactor (1), a vertical flow artificial wetland system (2), a parallel flow artificial wetland system (3) and an enhanced dephosphorization oxidation pond system (4); tail water enters the photocatalytic reactor (1) and flows through the first catalytic reaction area (9) and the second catalytic reaction area (10) in sequence, the biodegradability of water is improved under the action of ultraviolet light, and then the tail water enters the constructed wetland system through the water inlet (11), and the constructed wetland system comprises a vertical flow constructed wetland system (2), a parallel flow constructed wetland system (3) and a reinforced phosphorus removal oxidation pond system (4), so that organic matters, nitrogen, phosphorus and inorganic matters are removed under the actions of aerobic and anaerobic environments and submerged plants.
2. The photocatalytic reactor and constructed wetland sewage treatment method according to claim 1, characterized in that: the reactor is divided into two reaction zones by an overflow plate (8) arranged in the photocatalytic reactor (1), the oxygen content of water is increased in the overflow process, foam nickel nets (5) loaded with titanium dioxide are arranged on two sides of the overflow plate (8) and the wall of the reactor, the titanium dioxide loaded on the nickel nets is used as a catalyst to promote ultraviolet light to oxidize and decompose pollutants in water, ultraviolet lamps (6) are respectively arranged at the centers of the two catalytic reaction zones, and a quartz tube (7) is sleeved outside the light source for preventing the generated heat from burning out a lamp tube and influencing the reaction environment.
3. The photocatalytic reactor and constructed wetland sewage treatment method according to claim 1, characterized in that: the bottom of the vertical flow artificial wetland system (2) is provided with an aeration pipe (13) which is externally connected with an air blower (12), the substrate in the parallel flow artificial wetland system (3) is divided into three layers, a gravel layer, a polycaprolactone composite carbon source and limestone mixing layer and an ecological soil layer are respectively arranged from bottom to top, water is uniformly distributed through a water distributor, the vertical flow artificial wetland system (2) and the parallel flow artificial wetland system (3) respectively form an aerobic functional zone and an anaerobic functional zone, and meanwhile, the polycaprolactone composite carbon source in the filler is a solid slow-release carbon source, so that the denitrification effect of the artificial wetland can be effectively enhanced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210234579.2A CN114890610A (en) | 2022-03-10 | 2022-03-10 | Photocatalytic reactor and artificial wetland sewage treatment method |
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| CN202210234579.2A CN114890610A (en) | 2022-03-10 | 2022-03-10 | Photocatalytic reactor and artificial wetland sewage treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116216906A (en) * | 2023-03-02 | 2023-06-06 | 温州大学 | Device suitable for advanced treatment of tail water of sewage biochemical process and application method of device |
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2022
- 2022-03-10 CN CN202210234579.2A patent/CN114890610A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116216906A (en) * | 2023-03-02 | 2023-06-06 | 温州大学 | Device suitable for advanced treatment of tail water of sewage biochemical process and application method of device |
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