CN207943934U - A kind of anti-fouling floating type ecostagnation purification marsh sewage treatment system - Google Patents
A kind of anti-fouling floating type ecostagnation purification marsh sewage treatment system Download PDFInfo
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- CN207943934U CN207943934U CN201820205546.4U CN201820205546U CN207943934U CN 207943934 U CN207943934 U CN 207943934U CN 201820205546 U CN201820205546 U CN 201820205546U CN 207943934 U CN207943934 U CN 207943934U
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- 239000010865 sewage Substances 0.000 title claims abstract description 84
- 238000000746 purification Methods 0.000 title claims abstract description 23
- 238000007667 floating Methods 0.000 title claims abstract description 16
- 230000003373 anti-fouling effect Effects 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 239000000725 suspension Substances 0.000 claims description 20
- 239000002245 particle Substances 0.000 claims description 19
- 230000014759 maintenance of location Effects 0.000 claims description 15
- 238000005273 aeration Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000011001 backwashing Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 3
- 238000005276 aerator Methods 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- 239000000945 filler Substances 0.000 description 26
- 241000196324 Embryophyta Species 0.000 description 10
- 239000003344 environmental pollutant Substances 0.000 description 10
- 231100000719 pollutant Toxicity 0.000 description 10
- 239000011148 porous material Substances 0.000 description 7
- 239000004746 geotextile Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 238000006213 oxygenation reaction Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 241000255925 Diptera Species 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000010451 perlite Substances 0.000 description 2
- 235000019362 perlite Nutrition 0.000 description 2
- 239000008262 pumice Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 235000005273 Canna coccinea Nutrition 0.000 description 1
- 240000008555 Canna flaccida Species 0.000 description 1
- 240000001398 Typha domingensis Species 0.000 description 1
- 241001464837 Viridiplantae Species 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- -1 ceramsite Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model provides a kind of anti-fouling floating type ecostagnation purification marsh sewage treatment system, it is characterised in that：Precipitation unit and processing unit are set gradually along the direction that sewage flows through；Wherein, precipitation unit includes sedimentation basin and aerator；Sedimentation basin is equipped with sewage inlet pipe and level-one sewage outlet pipe；Aerator is installed in sedimentation basin；Processing unit includes processing pond, at least two purifiers；Processing pond is equipped with level-one sewage inlet pipe, processing water out；Level-one sewage inlet pipe is connected to level-one sewage outlet pipe；All purifiers are cascading along the depth direction of processing pond；Level-one sewage inlet pipe is installed on the top of purifier.A kind of floating type ecostagnation purification marsh sewage treatment system is provided, it can effectively solve the touting problems of artificial swamp matrix, and reduce because aerobic reaction is insufficient inside Wetland Substrate, cause artificial swamp to lead to the problem of a large amount of Methane Emissions based on anaerobic reaction.
Description
Technical Field
The utility model belongs to the technical field of the ecological remediation of water, a prevent that silt fills up ecological detention of suspension type and purifies wetland sewage treatment system is related to.
Background
The artificial wetland sewage treatment is a sewage treatment ecological engineering technology, and is widely applied to domestic sewage treatment in small towns and rural areas due to the characteristics of low investment, low energy consumption, convenient maintenance, unfixed construction scale and the like. The vertical subsurface flow constructed wetland is a type of constructed wetland, and has been widely applied to sewage treatment by the characteristics of small floor area, higher pollutant removal efficiency, small influence of climate, no mosquito breeding in summer, no odor and the like.
However, in the actual long-term operation, because the oxygenation capacity of the downstream wetland is poor, dissolved oxygen in the substrate mainly comes from the oxygen delivery of plant root systems and the pre-aeration of wetland systems, the pores of the substrate are filled with sewage for a long time, the internal oxygen supply is insufficient, a large amount of organic matters and bacterial residues accumulated in the pores are decomposed and removed by the anaerobic action of microorganisms, and the removal efficiency is not high. Therefore, if the decomposition efficiency of the pollutants is not as high as the inflow speed of the pollutants, the pollutants block the pores, the permeability coefficient of the matrix is reduced, the sewage is accumulated, and the generation of malodor and flies is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming of above-mentioned perpendicular undercurrent constructed wetland, provide an ecological detention of suspension type purifies wetland sewage treatment system, it can effectively solve the silting problem of constructed wetland matrix to the reduction is insufficient because of the inside aerobic reaction of wetland matrix, leads to constructed wetland to use anaerobic reaction to give first place to and produce the problem that a large amount of methane gas discharged.
The utility model provides a prevent that silt stopper suspension type ecological retention purifies wetland sewage treatment system, its characterized in that: a sedimentation unit and a treatment unit are sequentially arranged along the direction of sewage flow;
wherein, the sedimentation unit comprises a sedimentation tank and aeration equipment;
a sewage inlet pipe and a primary sewage outlet pipe are arranged on the sedimentation tank; the sewage inlet pipe and the primary sewage outlet pipe are generally arranged at the upper half part of the sedimentation tank, wherein sewage in the inlet pipe enters the system through the sewage inlet pipe, and flows out from the primary sewage outlet pipe in an overflow mode after being subjected to aeration treatment;
the aeration equipment is arranged in the sedimentation tank; generally, the device is arranged at the bottom of a sedimentation tank and upwards discharges gas for aeration;
the treatment unit comprises a treatment pool and at least two water purifying devices;
the treatment tank is provided with a primary sewage inlet pipe and a treated water outlet; the treated water outlet may be provided in the bottom or wall of the treatment tank. When the outlet is arranged on the wall, the water outlet area and the treatment area are arranged separately, thereby ensuring that all sewage is discharged after being treated.
The primary sewage inlet pipe is communicated with the primary sewage outlet pipe;
all the water purifying devices are sequentially stacked along the depth direction of the treatment tank; that is, all the water purifying devices are disposed in the treatment tank in a stacked manner, and generally, in a state of floating in water, the bottom of the lowermost water purifying device does not contact the bottom of the treatment tank, and is generally spaced from the bottom of the treatment tank by 20 to 40 cm.
The primary sewage inlet pipe is arranged above the water purifying device. That is, all the sewage inflow water is treated by the water purifying device and then discharged.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the primary sewage inlet pipe comprises a main pipe and at least one branch pipe;
the primary sewage outlet pipe is communicated with the main pipe; conveying the sewage to be treated to the main pipe;
the branch pipes are communicated with the main pipe. The sewage in the main pipe is divided by the branch pipes.
The branch pipe is provided with a plurality of drain holes.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: that is, the water purification apparatus is a mesh-shaped tank filled with floating particles. Thereby enabling the water purifying device to be in a floating state in water.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the aperture of the mesh of the net-shaped box body is gradually enlarged from top to bottom;
the particle size of the floating particles gradually increases from top to bottom. Different purifier adopt the box in different apertures promptly, and simultaneously, different purifier intussuseption is filled with the granule of different particle diameters.
The above particles can be hydrophilic porous floating particles such as ceramsite, pumice, expanded perlite and the like.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the treatment tank is also internally provided with a limiting mechanism for limiting the height of the uppermost water purifying device.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, a position-limiting containing layer which only allows the liquid substance to pass through is arranged above the position-limiting mechanism; the position limiting and placing layer can be of a net body structure.
A filling layer is arranged on the position limiting storage layer; the filling layer is generally made of materials such as gravel and the like.
The primary sewage inlet pipe is embedded in the filling layer.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the treatment unit also comprises a biological water purification system;
the biological water purification system comprises a plant matrix layer and plants; the plant matrix layer can be composed of geotextile and planting soil paved thereon;
the plants are planted in the plant matrix layer;
the plant matrix layer is arranged at the uppermost part of the treatment tank.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the processing unit also comprises a water collecting part;
the water collecting part collects the water treated by the treatment tank and then discharges the water through a treated water outlet.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the device also comprises a back washing unit;
the back washing unit comprises at least one back washing pipe and a liquid pressurizing and conveying mechanism; the back flushing pipe is generally communicated with equipment such as a high-pressure water gun, and the liquid pressurizing and conveying mechanism is generally equipment such as a water pump.
The backflushing pipe is arranged in the treatment tank and penetrates through the whole treatment tank;
the liquid pressurizing and conveying mechanism is arranged in the treatment pool and drives the liquid to flow out.
Further, the utility model provides a pair of prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system still has such structural feature: namely, the backflushing pipe is provided with a plurality of pressurizing water outlet holes. For flushing pressurized water in depth direction to the various levels of the settling tank.
The utility model has the advantages that:
the utility model adopts hydrophilic porous floating particles as the filler, and the specific surface area can reach 1500m per cubic meter2Research data show that the treatment capacity of the artificial wetland is 5 times that of the common subsurface flow artificial wetland, and the removal rate of COD, TN and TP is 70-80%.
The utility model discloses when washing the filler, the filler is the suspended state, and through the impact of high-pressure squirt, soak for a long time, the mode of water pump suction thoroughly clears away the plug in the filler hole and the silt of deposit in the bottom of the pool, the effectual silt jam problem of having avoided constructed wetland system.
The utility model discloses after the filler washs with water suction discharge, the surface of water decline produces the negative pressure, and the atmosphere is to the reoxygenation in the filler, has strengthened aerobic microorganism's activity, makes the removal ability of ammonia nitrogen and organic matter strengthen greatly, has avoided the degradation of the interior pollutant of long-term anaerobic environment lower system incomplete and cause the problem that pollutant removal efficiency is not high, filler hole blocks up and a large amount of methane gas discharges.
Drawings
FIG. 1 is a schematic structural diagram of an anti-clogging suspended ecological retention purification wetland sewage treatment system according to the embodiment;
FIG. 2 is a schematic top view of the anti-clogging suspended ecological retention purification wetland sewage treatment system according to the embodiment;
wherein,
1-sewage pipe, 2-water inlet electromagnetic valve, 3-catchment sedimentation tank, 4-aeration disc (aeration and oxygenation facility), 5-water distribution main pipe, 6-branch pipe, 7-treatment tank, 8-gabion net cage, 9-filler, 10-fixing pile, 11-stainless steel net, 12-gravel, 13-geotextile, 14-planting soil, 15-wetland plant, 16-water collecting tank, 17-water outlet pipe, 18-water pump and 19-backwashing pipe.
Detailed Description
As shown in figures 1 and 2, the utility model provides a prevent that silt fills up ecological detention of suspension type purifies wetland sewage treatment system, should provide and can be used to handle domestic sewage. Consists of a catchment sedimentation tank 3, a treatment tank 7, a water collecting tank 16, a water distribution system, an aeration and oxygenation facility 4, a flushing facility 19 and a drainage facility 17.
The inlet of the catchment sedimentation tank 3 is connected with the sewage collecting pipe 1, and an aeration and oxygenation facility 4 is arranged inside the catchment sedimentation tank 3.
The treatment tank 7 is of a brick concrete structure, the depth of the treatment tank is 140cm, at least two gabion net cages 8 are arranged in the treatment tank, in the embodiment, the number of the gabion net cages 8 is two, the two net cages are arranged up and down, floating particles 9 (which can be ceramsite, pumice, expanded perlite and the like) are filled in the two net cages, the meshes of the upper net cage are smaller than 20mm, and the meshes of the lower net cage are smaller than 30 mm. The net cage has the size of 100-400cm in length, 35-140cm in width and 30-60cm in height. The floating particles in the upper layer of the net cage are distributed with a particle size of 20-30mm, the floating particles in the lower layer of the net cage are distributed with a particle size of 30-60mm, and the density is 300-500kg/m3. In practical application, a plurality of suspension type ecological retention purification wetland treatment tanks can be connected in parallel to play a role of purifying water. During operation, sewage flows into the treatment tank and is filled with fillerThe whole suspension is carried out, and the distance between the bottom of the lower-layer gabion net cage 8 and the bottom of the tank is 25-55cm during suspension. (for example, two layers of gabion net cages 8 are placed in the pool, ceramsite fillers 9 are filled in the gabion net cages 8, the distribution particle size of the ceramsite 9 in the upper layer of gabion net cage 8 is 20-30mm, the height of the net cage is 40cm, the distribution particle size of the ceramsite 9 in the lower layer of net cage 8 is 30-50mm, the height of the net cage is 40 cm., and each gabion net cage 8 is 300cm long and 105cm wide.)
The wall of the treatment tank 7 is provided with the fixing pile 10, and the fixing pile 10 is arranged at a position 110cm away from the bottom of the tank to control the highest position which can be reached by the upper layer gabion mesh box 8 in a suspension manner, so that the upper layer stainless steel mesh 11 is prevented from being collided in the suspension and lifting process of the gabion mesh box 8. The upper part of the fixing pile 10 is laid with a stainless steel net 11, the periphery is embedded into the pool wall, a gravel layer 12 is laid on the stainless steel net, and the water distribution pipeline system is arranged in the gravel layer 12. The water distribution pipeline comprises a main pipe 5 and branch pipes 6, an opening at one side of the main pipe 5 is connected with the sedimentation tank 3, the water level of sewage rises to the opening position of the main pipe 5, the sewage flows into the main pipe 5 and then respectively flows into the branch pipes 6 and flows into the wetland system through the branch pipes 6. The interval of the water outlet holes on the branch pipe 6 is 10-30 cm. The geotextile 5 is laid above the water distribution pipeline, planting soil 14 is laid above the geotextile 5, and plants 15 are planted in the planting soil 14 and are generally hygrophytes or green plants.
(for example, the height of the crushed stone layer is 10cm, the particle size is 5-20mm, the water distribution pipe is arranged in the crushed stone layer, the pipe diameter of the main pipe of the water distribution pipe is DN40-80, the diameter of the branch pipe is DN20-40, water outlets with the diameter of 1-2mm are distributed on the branch pipe at intervals of 15cm, a layer of geotextile is laid on the upper part of the crushed stone layer, planting soil with the thickness of 20cm is arranged on the geotextile, and the planting plants are cattail and canna.)
The specific operation mode and effect of the system are as follows:
when the operation period begins, domestic sewage is pretreated, then the water inlet electromagnetic valve is opened, the sewage flows into the sedimentation tank for full aeration, then uniformly flows into the filler of the wetland through the water distribution pipeline, fully contacts with the air in the filler pores, and completes biochemical reaction with microorganisms on the surface of the filler, so that pollutants are removed, the water inlet valve is adjustedThe opening degree of the door enables the wetland operation hydraulic load to be 1m3/m2d. The sewage flows downwards along with the slow floating of the filler, the sewage enters the filler pores and fully acts with air, and aerobic and anaerobic reactions are carried out with microorganisms attached to the surface of the filler after the sewage is intercepted and adsorbed by the filler, so that organic matters, ammonia nitrogen, nitrate nitrogen and the like in the sewage are effectively removed.
After the operation of a stage, some pollutants which are not completely decomposed are deposited on the bottom of the tank or attached to the surface of the filler, and when the pollutants are accumulated to a certain thickness and the purification effect of the sewage is influenced, the backwashing system needs to be started for cleaning after 5 to 7 days. The specific method comprises the following steps: closing the water inlet electromagnetic valve, opening the drainage equipment (water pump) arranged in the water collecting tank, completely emptying the water in the tank, enabling the gabion net cage to fall into the bottom of the tank, and closing the water pump. Introducing a high-pressure water gun into the back flushing pipe for high-pressure flushing, wherein the flushing intensity is controlled to be 4-6L/m2And s, when the water surface just submerges the floating particles, stopping filling water, soaking for 3-8h, starting the water pump in the water collecting tank again, completely emptying the water in the water collecting tank and the water in the treatment tank, and finishing the back washing and reoxygenation of the filler, wherein the filler layer is in a dry state. In the process, the sludge at the bottom of the pool is dispersed and suspended by flushing the high-pressure water gun and flushed out of the pool; the high pressure washing also increases the friction between the fillers, so that the pollutants attached to the surfaces of the fillers fall off. In addition, the suction of the water pump is used for facilitating the dredging of the filler pores and the falling-off of the blockage. Negative pressure is generated in the filler in the process that the water pump sucks the water surface to descend, and air enters the filler pores. Therefore, the process of back flushing the filler is also the process of reoxygenation of the filler.
Claims (10)
1. The utility model provides an prevent that silt fills up ecological retention of suspension type purifies wetland sewage treatment system which characterized in that: a sedimentation unit and a treatment unit are sequentially arranged along the direction of sewage flow;
wherein, the sedimentation unit comprises a sedimentation tank and aeration equipment;
a sewage inlet pipe and a primary sewage outlet pipe are arranged on the sedimentation tank;
the aeration equipment is arranged in the sedimentation tank;
the treatment unit comprises a treatment pool and at least two water purifying devices;
a primary sewage inlet pipe and a treated water outlet are arranged on the treatment tank;
the primary sewage inlet pipe is communicated with the primary sewage outlet pipe;
all the water purifying devices are sequentially stacked in the depth direction of the treatment tank;
the primary sewage inlet pipe is arranged above the water purifying device.
2. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 1, which is characterized in that:
the primary sewage inlet pipe comprises a main pipe and at least one branch pipe;
the primary sewage outlet pipe is communicated with the main pipe;
the branch pipe is communicated with the main pipe;
the branch pipe is provided with a plurality of drain holes.
3. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 1, which is characterized in that:
the water purification device is a net-shaped box body, and floating particles are filled in the water purification device.
4. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 3, which is characterized in that:
the aperture of the mesh of the net-shaped box body is gradually enlarged from top to bottom;
the particle size of the floating particles is gradually increased from top to bottom.
5. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 1, which is characterized in that:
still be equipped with stop gear in the treatment tank for the height of the purifier of restriction top.
6. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 5, which is characterized in that:
a limiting and placing layer which only allows liquid substances to pass through is arranged above the limiting mechanism;
a filling layer is arranged on the limiting position placing layer;
the primary sewage inlet pipe is embedded in the filling layer.
7. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 1, which is characterized in that:
the treatment unit further comprises a biological water purification system;
the biological water purification system comprises a plant matrix layer and plants;
the plants are planted in the plant matrix layer;
the plant matrix layer is arranged at the uppermost part of the treatment tank.
8. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 1, which is characterized in that:
the processing unit further comprises a water collecting part;
the water collecting part collects water treated by the treatment tank.
9. The anti-clogging suspended ecological retention purification wetland sewage treatment system of any one of claims 1 to 8, characterized in that:
the device also comprises a back washing unit;
the back flushing unit comprises at least one back flushing pipe and a liquid pressurizing and conveying mechanism;
the backflushing pipe is arranged in the treatment tank and penetrates through the whole treatment tank in depth;
the liquid pressurizing and conveying mechanism is arranged in the treatment pool and drives liquid to flow out.
10. The anti-clogging suspended ecological retention and purification wetland sewage treatment system of claim 9, which is characterized in that:
and a plurality of pressurizing water outlet holes are formed in the backflushing pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205546.4U CN207943934U (en) | 2018-02-06 | 2018-02-06 | A kind of anti-fouling floating type ecostagnation purification marsh sewage treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205546.4U CN207943934U (en) | 2018-02-06 | 2018-02-06 | A kind of anti-fouling floating type ecostagnation purification marsh sewage treatment system |
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| Publication Number | Publication Date |
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| CN207943934U true CN207943934U (en) | 2018-10-09 |
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| CN201820205546.4U Active CN207943934U (en) | 2018-02-06 | 2018-02-06 | A kind of anti-fouling floating type ecostagnation purification marsh sewage treatment system |
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| CN (1) | CN207943934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794549A (en) * | 2019-11-14 | 2021-05-14 | 北京远浪潮生态建设有限公司 | High-load anti-blocking type light ultra-high-porosity plant filter bed process technology and method |
| CN114527254A (en) * | 2022-03-04 | 2022-05-24 | 江西中烟工业有限责任公司 | Visual sewage treatment COD and BOD detection device and method |
-
2018
- 2018-02-06 CN CN201820205546.4U patent/CN207943934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794549A (en) * | 2019-11-14 | 2021-05-14 | 北京远浪潮生态建设有限公司 | High-load anti-blocking type light ultra-high-porosity plant filter bed process technology and method |
| CN114527254A (en) * | 2022-03-04 | 2022-05-24 | 江西中烟工业有限责任公司 | Visual sewage treatment COD and BOD detection device and method |
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