CN111977794A - Natural oxygenation constructed wetland processing apparatus - Google Patents
Natural oxygenation constructed wetland processing apparatus Download PDFInfo
- Publication number
- CN111977794A CN111977794A CN202010696630.2A CN202010696630A CN111977794A CN 111977794 A CN111977794 A CN 111977794A CN 202010696630 A CN202010696630 A CN 202010696630A CN 111977794 A CN111977794 A CN 111977794A
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- Prior art keywords
- wetland
- pool
- artificial wetland
- sewage
- artificial
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- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 29
- 239000010865 sewage Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 241000196324 Embryophyta Species 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 241000383620 Allium mongolicum Species 0.000 claims description 3
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 241001533118 Skimmia japonica Species 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 240000001398 Typha domingensis Species 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001706 oxygenating effect Effects 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 16
- 229910052760 oxygen Inorganic materials 0.000 description 16
- 230000007613 environmental effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000233948 Typha Species 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000037323 metabolic rate Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 235000015816 nutrient absorption Nutrition 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000005068 transpiration Effects 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
- C02F3/30—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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- 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
- 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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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 discloses a natural oxygenation constructed wetland treatment device, which relates to the technical field of sewage treatment and comprises an artificial wetland pool, wherein a wetland matrix is filled in the artificial wetland pool, wetland plants are planted on the wetland matrix, a plurality of guide plates are arranged in the artificial wetland pool, so that sewage entering the artificial wetland pool is in a wave flow state, water outlets are formed in two ends of the artificial wetland pool along the length direction of the artificial wetland pool, and an oxygenation device for oxygenating the upper part of the artificial wetland pool is further arranged in the artificial wetland pool. In the invention, sewage forms a plurality of water flow modes with alternating up-down flow in series and alternately enters the aerobic environment and the anaerobic environment in the artificial wetland pool, so that the denitrification effect of the wetland is greatly improved, and the wave-shaped water flow with opposite flow directions can be formed in the artificial wetland pool by changing the position of adding sewage, thereby avoiding the blockage caused by the accumulation of inorganic matters after the artificial wetland runs for a long time.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a natural oxygenation constructed wetland treatment device.
Background
The artificial wetland is a technology for treating sewage and sludge by effectively controlling and dosing the sewage and the sludge to the artificially constructed wetland from a constructed and controlled running ground similar to a marshland and by mainly utilizing the three synergistic actions of physical, chemical and biological of soil, artificial media, plants and microorganisms in the process of flowing the sewage and the sludge along a certain direction, and the action mechanism of the technology comprises adsorption, detention, filtration, oxidation reduction, precipitation, microbial decomposition, transformation, plant shielding, residue accumulation, transpiration of water and nutrient absorption and the action of various animals.
The main way of denitrification of the artificial wetland is nitrification and denitrification reaction depending on microorganisms, and other removal ways such as plant absorption, nitrogen and ammonia volatilization and the like have very small removal amount. The nitrification reaction is an oxidation reaction that requires aerobic wetland soil environmental conditions, while the denitrification reaction is a reduction reaction that requires anaerobic wetland soil environmental conditions. Therefore, the environmental conditions required for the nitrification reaction and the denitrification reaction can be created, and the denitrification capacity of the wetland system is directly determined. In most of the existing artificial wetlands, the removal rate of TSS and BOD is very high, while the removal rate of nitrogen is very low, which is mainly caused by insufficient oxygen supply in the wetlands and single anaerobic and anoxic environmental condition in the whole wetland.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a natural oxygenation constructed wetland treatment device.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a natural oxygenation constructed wetland processing apparatus, includes the constructed wetland pond, the constructed wetland pond intussuseption is filled with wetland matrix, just it has the wetland plant to plant on the wetland matrix, be provided with a plurality of blocks in the constructed wetland pond and be on a parallel with vertical planar guide plate, a plurality of the guide plate is followed the length direction in constructed wetland pond sets gradually, and a plurality of the guide plate crisscross set up in the constructed wetland pond, make the entering sewage in the constructed wetland pond is the wave form flow state, the delivery port has all been seted up along its length direction's both ends in the constructed wetland pond, still be provided with in the constructed wetland pond and be used for carrying out the oxygenation device of oxygenation to its upper portion.
As a preferred scheme of the natural oxygen increasing constructed wetland treatment device, the invention comprises the following steps: and an opening for sewage to flow through is formed between the lower end of the guide plate adjacent to the two ends of the artificial wetland pool and the bottom of the artificial wetland pool.
As a preferred scheme of the natural oxygen increasing constructed wetland treatment device, the invention comprises the following steps: the number of the guide plates is an odd number which is more than or equal to three.
As a preferred scheme of the natural oxygen increasing constructed wetland treatment device, the invention comprises the following steps: the oxygenation mechanism comprises an oxygenation aeration pipe and an air compressor connected with the oxygenation aeration pipe, and the oxygenation aeration pipe is positioned at the upper part of the artificial wetland pool.
As a preferred scheme of the natural oxygen increasing constructed wetland treatment device, the invention comprises the following steps: the wetland substrate comprises sand, gravel and soil.
As a preferred scheme of the natural oxygen increasing constructed wetland treatment device, the invention comprises the following steps: the wetland plant comprises one or more of reed, allium mongolicum regel, rush, cattail and skimmia japonica.
The invention also provides a treatment method of the natural oxygenation constructed wetland treatment device, which comprises the following steps:
s1: adding sewage to be treated between any one end of the artificial wetland pool and an adjacent guide plate, then flowing the sewage from one end of the artificial wetland pool to the other end in a wave-shaped flow state, and simultaneously carrying out oxygenation on the artificial wetland pool by an oxygenation device;
s2: when sewage flows into the upper part of the artificial wetland pool, the aerobic environment condition at the upper part of the artificial wetland pool promotes the nitrification reaction, when the sewage flows into the lower part of the artificial wetland pool from the upper part of the artificial wetland pool, the anaerobic environment at the lower part of the artificial wetland pool promotes the denitrification reaction, and the sewage alternately flows through the aerobic environment and the anaerobic environment until the sewage flows to the other end of the artificial wetland pool and is discharged from a water outlet at the other end;
s3: and after the artificial wetland pool operates for a period of time, adding the sewage to be treated between the other end of the artificial wetland pool and the adjacent guide plate, and continuing to perform artificial wetland treatment.
As a preferred scheme of the treatment method of the natural oxygen-increasing constructed wetland treatment device, the treatment method comprises the following steps: when sewage is added, an intermittent water inlet mode is adopted.
The invention has the beneficial effects that:
(1) the invention is provided with a plurality of guide plates in the artificial wetland pool in a staggered way, so that the sewage entering the artificial wetland pool is in a wave-shaped flow state, and the sewage forms a plurality of series-connected up-down flow alternative water flow modes, thereby alternately entering the aerobic environment and the anaerobic environment in the artificial wetland pool and greatly improving the denitrification effect of the wetland;
(2) according to the invention, by changing the position of sewage injection, waveform water flows with opposite flow directions can be formed in the artificial wetland pool, and the sewage can be used for backwashing the wetland, so that the blockage caused by the accumulation of inorganic matters after the artificial wetland is operated for a long time is avoided, and the flushed pollutants flow and are discharged along with the sewage, thereby reducing the influence on sewage treatment caused by the blockage of the artificial wetland;
(3) the oxygen increasing device only increases oxygen to the upper part of the artificial wetland pool, and ensures that the upper part in the artificial wetland pool is always in an aerobic environment, thereby ensuring the denitrification effect of the wetland.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural view of a natural oxygen-increasing constructed wetland treatment device provided by the invention;
wherein: 1. an artificial wetland pool; 2. a wetland substrate; 3. wetland plants; 4. a baffle; 5. a water outlet; 6. an oxygen aeration pipe.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
The embodiment provides a natural oxygenation constructed wetland treatment device, which comprises an artificial wetland pool 1, wherein a wetland substrate 2 is filled in the artificial wetland pool 1, and wetland plants 3 are planted on the wetland substrate 2. Wherein, the wetland substrate 2 comprises sand, gravel and soil with different grain diameters, and the wetland plant 3 comprises one or more of reed, allium mongolicum regel, rush, cattail and skimmia japonica.
The artificial wetland pool 1 is in a cuboid shape, five guide plates 4 parallel to a vertical plane are arranged in the artificial wetland pool 1, and the five guide plates 4 are sequentially arranged at equal intervals along the length direction of the artificial wetland pool 1. Both ends of each guide plate 4 along the width direction of the artificial wetland pool 1 are connected on the inner walls of both sides of the artificial wetland pool 1. Five guide plates 4 are arranged in the artificial wetland pool 1 in a staggered way, wherein an opening for sewage to flow through is reserved between the lower ends of the first, third and fifth guide plates 4 from any end of the artificial wetland pool 1 to the other end in the five guide plates 4 and the bottom of the artificial wetland pool 1, and the lower ends of the second and fourth guide plates 4 are connected with the bottom of the artificial wetland pool 1, so that the sewage entering the artificial wetland pool 1 is in a wave-shaped flow state.
In addition, a left water inlet of the artificial wetland pool 1 is formed between the left end of the artificial wetland pool 1 and the guide plate 4 adjacent to the left end, and a right water inlet of the artificial wetland pool 1 is formed between the right end of the artificial wetland pool 1 and the guide plate 4 adjacent to the right end. The left end and the right end of the artificial wetland pool 1 are both provided with water outlets 5.
An oxygen increasing device for increasing oxygen to the upper part of the artificial wetland pool 1 is also arranged in the artificial wetland pool 1, the oxygen increasing device comprises an oxygen increasing aeration pipe 6 and an air compressor connected with the oxygen increasing aeration pipe 6, and the oxygen increasing aeration pipe 6 is positioned at the upper part of the artificial wetland pool 1. The air compressor can convey air to the upper part of the artificial wetland tank 1 through the oxygen-increasing aeration pipe 6, so that the upper part of the artificial wetland tank 1 forms an aerobic environment, and the lower part of the artificial wetland tank 1 is in an anaerobic environment.
The embodiment also provides a treatment method of the natural oxygenation constructed wetland treatment device, which comprises the following steps:
s1: adding sewage to be treated into the artificial wetland pool 1 from a left water inlet of the artificial wetland pool 1, then flowing the sewage from the left end to the right end of the artificial wetland pool 1 in a wave-shaped flow state, and simultaneously carrying out oxygenation on the artificial wetland pool 1 through an oxygenation device;
s2: when sewage flows into the upper part of the artificial wetland pool 1, the aerobic environmental condition at the upper part of the artificial wetland pool 1 promotes the nitration reaction to convert NH4+ -N into NO3- -N; when sewage flows into the lower part of the artificial wetland pool 1 from the upper part of the artificial wetland pool 1, sewage containing a large amount of NO 3-N enters the lower part of the artificial wetland pool 1, and the anaerobic environment at the lower part of the artificial wetland pool 1 promotes the denitrification reaction to convert NO 3-N into N2; the sewage alternately flows through an aerobic environment and an anaerobic environment until the sewage flows to the other end of the artificial wetland pool 1 and is discharged from a water outlet 5 at the other end;
s3: after the artificial wetland pool 1 runs for a period of time, sewage to be treated is added into the artificial wetland pool 1 from a right water inlet of the artificial wetland pool 1, the artificial wetland treatment is continued, fine pollutants in the artificial wetland pool 1 can be washed under the impact action of reverse water flow, move towards the left end of the artificial wetland pool 1 and are finally discharged from a water outlet 5, and after the artificial wetland pool 1 is treated for 1-2 days by reversely adding the sewage, the polluted blockage in the artificial wetland pool 1 is basically removed.
The intermittent water inflow mode is adopted when sewage is added, so that atmospheric ozone can be fully utilized, the oxygen content in the artificial wetland is improved, the aerobic metabolic rate nitration reaction of microorganisms is facilitated, and the denitrification efficiency is improved.
Therefore, the sewage forms a plurality of water flow modes with the series connection and the up-down flow alternation, and the sewage enters the aerobic environment and the anaerobic environment in the artificial wetland pool 1 alternately, thereby greatly improving the denitrification effect of the wetland, and the sewage can be utilized to back flush the wetland by changing the position of adding the sewage to form wave-shaped water flows with opposite flow directions in the artificial wetland pool 1, thereby avoiding the blockage caused by the accumulation of inorganic matters after the artificial wetland runs for a long time.
In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a natural oxygenation constructed wetland processing apparatus, includes constructed wetland pond (1), constructed wetland pond (1) intussuseption is filled with wetland matrix (2), just plant wetland plant (3) on wetland matrix (2), its characterized in that: be provided with a plurality of blocks in artifical wetland pond (1) and be on a parallel with vertical planar guide plate (4), a plurality of blocks guide plate (4) are followed the length direction of artifical wetland pond (1) sets gradually, and a plurality of guide plate (4) crisscross set up in artifical wetland pond (1), make and get into sewage in artifical wetland pond (1) is the wave form flow state, delivery port (5) have all been seted up along its length direction's both ends in artifical wetland pond (1), still be provided with in artifical wetland pond (1) and be used for carrying out the oxygenation device of oxygenation to its upper portion.
2. The natural oxygen-increasing constructed wetland treatment device according to claim 1, characterized in that: and an opening for sewage to flow through is formed between the lower end of the guide plate (4) adjacent to the two ends of the artificial wetland pool (1) and the bottom of the artificial wetland pool (1).
3. The natural oxygen-increasing constructed wetland treatment device according to claim 1 or 2, characterized in that: the number of the guide plates (4) is an odd number which is more than or equal to three.
4. The natural oxygen-increasing constructed wetland treatment device according to claim 3, characterized in that: the oxygenation mechanism comprises an oxygenation aeration pipe (6) and an air compressor connected with the oxygenation aeration pipe (6), and the oxygenation aeration pipe (6) is positioned at the upper part of the artificial wetland pool (1).
5. The natural oxygen-increasing constructed wetland treatment device according to claim 1, characterized in that: the wetland substrate (2) comprises sand, gravel and soil.
6. The natural oxygen-increasing constructed wetland treatment device according to claim 1, characterized in that: the wetland plant (3) comprises one or more of reed, allium mongolicum regel, rush, cattail and skimmia japonica.
7. The treatment method of the natural oxygen-increasing constructed wetland treatment device according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
s1: adding sewage to be treated between any one end of the artificial wetland pool (1) and the adjacent guide plate (4), then flowing the sewage from one end of the artificial wetland pool (1) to the other end in a wave-shaped flow state, and simultaneously carrying out oxygenation on the interior of the artificial wetland pool (1) through an oxygenation device;
s2: when sewage flows into the upper part of the artificial wetland pool (1), the aerobic environment condition at the upper part of the artificial wetland pool (1) promotes the nitrification reaction, when the sewage flows into the lower part of the artificial wetland pool (1) from the upper part of the artificial wetland pool (1), the anaerobic environment at the lower part of the artificial wetland pool (1) promotes the denitrification reaction, and the sewage alternately flows through the aerobic environment and the anaerobic environment until the sewage flows to the other end of the artificial wetland pool (1) and is discharged from a water outlet (5) at the end;
s3: after the artificial wetland pool (1) operates for a period of time, sewage to be treated is added between the other end of the artificial wetland pool (1) and the adjacent guide plate (4), and the artificial wetland treatment is continued.
8. The treatment method of the natural oxygen-increasing constructed wetland treatment device according to claim 7, characterized in that: when sewage is added, an intermittent water inlet mode is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696630.2A CN111977794A (en) | 2020-07-20 | 2020-07-20 | Natural oxygenation constructed wetland processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696630.2A CN111977794A (en) | 2020-07-20 | 2020-07-20 | Natural oxygenation constructed wetland processing apparatus |
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| CN111977794A true CN111977794A (en) | 2020-11-24 |
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| CN202010696630.2A Pending CN111977794A (en) | 2020-07-20 | 2020-07-20 | Natural oxygenation constructed wetland processing apparatus |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817590A (en) * | 2009-12-28 | 2010-09-01 | 中国科学院南京地理与湖泊研究所 | Turn-back horizontal flow wetland water quality advanced purification technology |
| CN103395949A (en) * | 2013-08-16 | 2013-11-20 | 北京中环嘉诚环境工程有限公司 | Method for treating sewage by using artificial wetland |
| CN103864216A (en) * | 2014-02-26 | 2014-06-18 | 天津大学 | Wavy subsurface-flow constructed wetland landscape water body treatment system and method |
| CN105836891A (en) * | 2016-04-25 | 2016-08-10 | 农业部沼气科学研究所 | Bidirectional flow distribution artificial wetland and treatment method thereof |
| CN105923891A (en) * | 2016-04-27 | 2016-09-07 | 浙江工商职业技术学院 | Multistage vertical current constructed wetland system-based sewage treatment method |
| CN206232491U (en) * | 2016-11-30 | 2017-06-09 | 长安大学 | A kind of spirality waves subsurface flow constructed wetland system |
| CN206635115U (en) * | 2017-03-14 | 2017-11-14 | 宁波市华测检测技术有限公司 | A kind of compound flow constructed wetland sewage disposal system |
| CN110194532A (en) * | 2019-06-24 | 2019-09-03 | 南京泽辉环保科技有限公司 | A kind of comprehensive wet land system of purification of water quality |
| CN111233161A (en) * | 2020-03-25 | 2020-06-05 | 北京城市排水集团有限责任公司 | Constructed wetland sewage treatment plant |
-
2020
- 2020-07-20 CN CN202010696630.2A patent/CN111977794A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817590A (en) * | 2009-12-28 | 2010-09-01 | 中国科学院南京地理与湖泊研究所 | Turn-back horizontal flow wetland water quality advanced purification technology |
| CN103395949A (en) * | 2013-08-16 | 2013-11-20 | 北京中环嘉诚环境工程有限公司 | Method for treating sewage by using artificial wetland |
| CN103864216A (en) * | 2014-02-26 | 2014-06-18 | 天津大学 | Wavy subsurface-flow constructed wetland landscape water body treatment system and method |
| CN105836891A (en) * | 2016-04-25 | 2016-08-10 | 农业部沼气科学研究所 | Bidirectional flow distribution artificial wetland and treatment method thereof |
| CN105923891A (en) * | 2016-04-27 | 2016-09-07 | 浙江工商职业技术学院 | Multistage vertical current constructed wetland system-based sewage treatment method |
| CN206232491U (en) * | 2016-11-30 | 2017-06-09 | 长安大学 | A kind of spirality waves subsurface flow constructed wetland system |
| CN206635115U (en) * | 2017-03-14 | 2017-11-14 | 宁波市华测检测技术有限公司 | A kind of compound flow constructed wetland sewage disposal system |
| CN110194532A (en) * | 2019-06-24 | 2019-09-03 | 南京泽辉环保科技有限公司 | A kind of comprehensive wet land system of purification of water quality |
| CN111233161A (en) * | 2020-03-25 | 2020-06-05 | 北京城市排水集团有限责任公司 | Constructed wetland sewage treatment plant |
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Application publication date: 20201124 |