CN217458994U - Unpowered riverbed type wetland purification facility - Google Patents
Unpowered riverbed type wetland purification facility Download PDFInfo
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- CN217458994U CN217458994U CN202221413216.7U CN202221413216U CN217458994U CN 217458994 U CN217458994 U CN 217458994U CN 202221413216 U CN202221413216 U CN 202221413216U CN 217458994 U CN217458994 U CN 217458994U
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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
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Abstract
The utility model provides an unpowered riverbed formula wetland purification facility, includes that silt reserves pond, hinders water weir body, water distribution channel, overflow wall, wetland cell body, filler district, water distribution floral tube, drainage floral tube, sump pit and terminal drainage protection zone, silt reserves pond and wetland cell body and links to each other, the harmony weir body sets up at wetland cell body front wall top, overflow wall sets up above the wetland cell body and forms the water distribution channel with wetland cell body front wall between, water distribution floral tube arranges in wetland cell body bottom, the filler district sets up inside the wetland cell body, drainage floral tube arranges in the filler district, the sump pit vertical arrangement is in the filler district and is linked together with drainage floral tube upper reaches, terminal drainage protection zone arranges in the outside of wetland cell body rear wall. The facility has low construction investment and operation and maintenance cost, high integration degree of the facility and the riverbed, no occupation of flood space of the riverway, no need of power for lifting the water head, and not only can improve the self-purification capacity of the river water, but also can effectively operate for a long time.
Description
Technical Field
The utility model belongs to the water environment treatment field, concretely relates to unpowered riverbed formula wetland purification facility.
Background
At present, the treatment of the black and odorous water in the river is successful, but the phenomenon of blackening and deodorizing the water in the river is still infinite, so that the long-term treatment and the long-term cleaning of the water quality of the river are difficult to guarantee. The existing riverway water quality improving technology mostly adopts engineering technologies such as traditional constructed wetlands or bypass integrated purification facilities, and the like, and the technologies have the defects of high manufacturing cost, relatively high operation cost and the like, such as the following water environment improving engineering technical measures/facilities.
1. The artificial wetland engineering technology comprises the following steps: the artificial wetland for purifying river water is widely applied to river water environment improvement engineering projects at present, and has achieved great success. The artificial wetland has a good water body purifying effect and mainly comprises an underflow wetland, a horizontal underflow and a vertical underflow. The artificial wetland mainly adopts a water diversion facility or a water lifting facility to take water, water is uniformly distributed through a water distribution channel, river water is uniformly distributed to a pool body filling area through a water distribution pipe, water body purification is carried out through the filtration, absorption and biological action of a filling and a vegetable layer, and finally the river water is discharged to an original river channel through a drainage pipe. The traditional artificial wetland technology is mostly built on one side of a river channel, occupies a large area, needs a pump station to lift water or build a damming weir dam to lift a water head, has relatively high manufacturing cost, and has certain influence on the shape of the river channel and the flow state of river water.
2. Bypass integration purification facility: the integrated purification facility mainly aims at the improvement project of small flow water environment of a riverway or is applied to the purification of water quality of small water bodies and lakes. In the application of riverway water environment lifting, a backwater dam needs to be built to improve a water head or a pump station needs to be built to lift water into an integrated pump station water storage facility, the water purification treatment process is more, and taking a biological treatment process as an example, the main process comprises the following steps: raw water- → grid- → regulation pool- → biological contact oxidation- → precipitation- → filtration- → discharge, the process has little excess sludge, extremely effectively removes ammonia nitrogen, and the effluent suspended matter and turbidity are close to zero, and bacteria and viruses in the effluent are greatly removed, so that the energy consumption is low, and the occupied area is small. However, the integrated purification facility needs a bypass, which involves the influence of occupied land, and meanwhile, the treatment scale is small, so that the integrated purification facility is difficult to be applied to the water quality improvement of the riverway with medium and small scales.
3. The river ecological restoration technology comprises the following steps: the ecological restoration technology is widely applied to river water environment improvement at present. The main principle of the riverway ecological restoration technology is that ecological skills are adopted in the middle of a riverway, at a riverside zone and at a riverbank, emergent water, floating water and submerged plants of local species and arbor and shrub of a bank slope are adopted according to different water depths and different positions, reasonable configuration is carried out, a riverway water ecological system is artificially restored, biological habitat diversity is built, and water quality is improved through self-healing of a complex water ecological system. However, the ecological structure in the ecological restoration technology has poor stability, is easily damaged by the impact of a flood for a certain time, further loses the function of purifying the water body, has long self-repairing and self-healing periods, and needs to be manually intervened for many times to restore the stability of the ecological structure in serious cases.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough that exists among the above-mentioned prior art, and provide an unpowered riverbed formula wetland purification facility, this facility construction investment and operation and maintenance expense are lower, facility and riverbed fusion degree are high, do not occupy the river course space of traveling floodwaters, do not need power to promote the flood peak, not only can improve river self-purification ability, moreover can long-term effectual operation.
As the conception, the technical proposal of the utility model is that: an unpowered riverbed type wetland purification facility is characterized in that: the water distribution flower tube is arranged at the bottom layer of the wetland tank body, the upstream of the water distribution flower tube penetrates through the overflow wall and is communicated with the water distribution channel, the filling area is arranged inside the wetland tank body, the drainage flower tube is arranged in the filling area, the downstream of the drainage flower tube penetrates through the rear wall of the tank body and is communicated with the terminal drainage protection area, the water collection well is vertically arranged in the filling area and is communicated with the upstream of the drainage flower tube, and the terminal drainage protection area is arranged outside the rear wall of the wetland tank body.
Preferably, the backwater weir body is a vertical water flow transversely arranged on the top of the front wall of the wetland pool body.
Preferably, the overflow wall and the wetland tank body are of an integral structure.
Preferably, the water distribution channel and the wetland tank body are of an integral structure.
Preferably, the diameter of the water distribution perforated pipe is not less than 100mm, the aperture ratio is 30-50%, and two layers of non-woven fabrics are wrapped outside.
Preferably, the diameter of the drainage pipe is not less than 100mm, the aperture ratio is 30-50%, and two layers of non-woven fabrics are wrapped outside the drainage pipe.
Preferably, the drainage perforated pipe is communicated with the water collecting well in a socket connection mode.
Preferably, the top of the water collecting well is provided with an umbrella cap, and the elevation of the well mouth of the water collecting well is 50cm higher than the normal water storage of the wetland pool body.
Preferably, the filler area is divided into four layers from bottom to top, namely a bottom layer, a middle upper layer and a top planting layer, wherein a non-woven fabric layer is paved at the interval of each layer, and the particle size of the filler of the bottom layer and the middle upper layer is 1-3mm, and the particle size of the filler of the middle layer is 5-15 mm.
The utility model discloses have following advantage and positive effect:
1. silt reserve the pond for the stereoplasm structure, its space volume for damming up the reservation of weir body upper reaches makes things convenient for the later stage desilting to clean.
2. The damming weir body can adopt stereoplasm structure or ecological structure, can improve the water distribution channel upper reaches flood peak, realize the gravity of wetland cell body and flow automatically, and it is perpendicular rivers transverse arrangement in the front wall top of wetland cell body, the length can cut the river course totally or partially.
3. The distribution channel be the stereoplasm structure, have certain space volume and can guarantee that the wetland evenly intakes.
4. The overflow wall can guarantee for the stereoplasm structure that the water distribution channel is normal to be impound the position, because be a whole with the wetland cell body connection, the water distribution floral tube is passed to the bottom, consequently the flood overflow when the high water level is allowed to pass through the wetland cell body.
5. Sump pit make as an organic whole, its top system has the umbrella cap can prevent that debris from blockking up, it is connected with drainage floral tube socket joint, the later stage destruction of being convenient for is changed.
6. Terminal drainage protection district can ensure smooth and easy and prevent the stifled silt of drainage floral tube of terminal drainage.
7. The wall all can realize surging of flood behind damming weir body, overflow wall and the wetland cell body and overflow, guarantee the flood discharge of flood stage flood.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a plan view of the present invention;
fig. 3 is a schematic structural diagram of the packing region of the present invention.
In the figure: 1-a sludge reservation tank, 2-a backwater weir body, 3-a water distribution channel, 4-an overflow wall, 5-a wetland tank body, 6-a filling area, 7-a water distribution floral tube, 8-a water drainage floral tube, 9-a water collecting well (a vent hole), 10-a tail end water drainage protection area, 11-a filling area bottom layer, 12-a filling area middle layer, 13-a filling area middle and upper layer, 14-a filling area top planting layer and 15-a non-woven fabric layer.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings and specific examples.
As shown in the figure, the utility model provides an unpowered riverbed formula wetland purification facility, it includes: the device comprises a sludge reservation pool 1, a water damming weir body 2, a water distribution channel 3, an overflow wall 4, a wetland pool body 5, a filling area 6, a water distribution floral tube 7, a drainage floral tube 8, a water collecting well 9 with a vent hole and a tail end drainage protection area 10. The sludge reservation tank 1 is arranged at the most upstream and is connected with a wetland tank body 5, the wetland tank body 5 is directly fully paved on a river bed or a part of the river bed, the water distribution weir 2 is arranged at the top of the front wall of the wetland tank body 5, the water distribution weir 2 can lift an upstream water head, a water distribution channel 3 is formed between the overflow wall 4 and the front wall of the wetland tank body 5, the water distribution channel 3 is used for uniformly distributing water to the water distribution floral tubes 7, the water distribution floral tubes 7 are arranged at the middle part of the bottommost layer of the wetland tank body 5, the overflow wall 4 is penetrated at the upstream and is communicated with the water distribution channel 3, the filling region 6 is divided into four layers from bottom to top, respectively provided with a bottom layer, a middle upper layer and a top planting layer, the connection surface of the filling region 6 is respectively provided with a layer of non-woven fabric, the relative density of the filling region 6 is not less than 0.5 except the planting layer, the water discharge floral tubes 8 are arranged at the middle layer of the filling region, the downstream of the water discharge floral tubes 8 is penetrated through the rear wall of the wetland tank body 5 and is communicated with a water discharge protection region 10, the water collecting well 9 is arranged at the middle upper layer of the filling area 6, the water collecting well 9 is directly communicated with the upstream of the drainage perforated pipe 8, the tail end drainage protection area 10 is arranged at the outer side of the rear wall of the wetland tank body 5, and the tail end drainage protection area 10 can protect the smoothness of tail end drainage and prevent the clogging of the drainage perforated pipe 8.
Preferably, the wetland tank body 5 is of a hard structure and is vertically dug downwards along the bottom of the river channel behind the water distribution channel to be directly connected with two banks of the river channel.
Preferably, the water distribution floral tube 7 can be made of metal or chemical building material tubes and the like, is arranged inside the wetland pool body 5, has a diameter of not less than 100mm and an aperture ratio of 30-50%, and is subjected to antiseptic treatment, so that two layers of non-woven fabrics are wrapped outside the water distribution floral tube 7, and the quality requirement of the non-woven fabrics is not less than 250g/m 2 。
Preferably, the drainage floral tube 8 can be made of metal or chemical building material tubes and the like, is arranged inside the wetland tank body 5, is particularly arranged on the middle upper layer of the filling area, has the diameter of not less than 100mm and the aperture ratio of 30% -50%, and needs to be subjected to antiseptic treatment, so that two layers of non-woven fabrics are wrapped outside the drainage floral tube, and the quality requirement of the non-woven fabrics is not less than 250g/m 2 . The drainage perforated pipe 8 and the water collecting well 9 can adopt a socket connection mode.
Preferably, the water collecting well 9 is made of metal or chemical building material pipes and the like, an umbrella cap made of the same material is arranged at the top of the water collecting well to prevent sundries from being blocked, the water collecting well has the function of a vent hole, and the elevation of the well mouth of the water collecting well is 50cm higher than the normal water storage of the wetland tank body. The water collecting well is connected with the water discharging perforated pipe in a socket joint mode, and later-period damage and replacement are facilitated.
Preferably, the filler area 6 is a wetland purification main structure and is fully paved in the wetland tank body 5 in four layers, the grain size of the bottom filler is 1-3mm, the bottom filler completely wraps the water distribution flower pipe 7, the grain size of the middle filler is 5-15mm, the grain size of the middle filler is 1-3mm, the middle filler completely wraps the water drainage flower pipe 8, the top planting layer is planting soil, and the vegetation on the top planting layer is local species of the project area. The filling types of each layer of the filling area can be sand, gravel, ceramsite, slag, volcanic filter material, zeolite and the like. A layer of non-woven fabric is arranged between the bottom layer and the middle layer of the packing area, between the middle layer and the middle upper layer, and between the middle upper layer and the top planting layer, and the quality requirement of the non-woven fabric is not less than 250g/m 2 。
Preferably, the terminal drainage protection zone 10 is close to the wall body at the terminal of the wetland tank body 5, and a large-particle-size protection material is arranged in the protection zone, wherein the material can be gravel, gravel and the like, so that the drainage pipe and the terminal water body can be protected from being smoothly drained.
The utility model discloses provide the river self-flowing condition by stopping up the weir body and promoting the water, need not to provide power promotion, loop through and arrange former river course after water distribution ditch, water distribution floral tube, filler district and the purification of drainage floral tube, stop up surging of weir body, overflow wall and wetland cell body rear wall all can realize the flood and overflow, guarantee the flood discharge of flood stage flood. The specific working process is as follows:
1. state (one): when no rainfall exists at the upstream of the river channel and the flow rate of the river channel is small, silt carried by upstream incoming water sinks in the silt reserving pool, after natural sedimentation, an upstream water head is lifted through the water damming weir body, so that the water can automatically flow through the downstream wetland to improve the water quality of the water body, when the river water overflows the water damming weir body, the river water enters the water distribution channel, the water is uniformly distributed through the water distribution channel and is uniformly distributed to water distribution flower pipes in the wetland pool, the river water uniformly passes through the filling area from bottom to top through the water distribution flower pipes and reacts with vegetation root systems at the lower part of the planting area to form a biological membrane structure so as to achieve the purpose of water purification, after the water quality is purified, the collected purified water is naturally discharged into the terminal protection area through the water discharge flower pipes and is discharged into the downstream of the river channel after passing through the terminal water discharge protection area, the retention time of the river water and the water purification effect are improved by setting the area of the wetland pool body, finally realizing the purification process of the unpowered riverbed wetland.
2. State (ii): when rainfall or flood occurs at the upstream, and the upstream water volume is larger than or far larger than the scale of the purified water volume of the original designed wetland, the working condition is a special working condition, and when the working condition occurs, the requirement of purifying and lifting the water body of the riverbed wetland is not required, so that the river can freely overflow the whole backwater weir body, the wetland tank body and the vegetation area, the silt in the upstream silt reserving tank is intercepted, the silting and the damage to the riverbed wetland are reduced, the impact on the vegetation is reduced as much as possible, and after the flood passes, the silt in the reserving tank and the wetland tank body is cleaned, the vegetation in the vegetation area is recovered, and the wetland purifying capacity under the normal operation working condition is facilitated.
The above embodiments are merely conventional embodiments of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept or principle of the present invention, and all of them belong to the protection scope of the present invention.
Claims (9)
1. An unpowered riverbed type wetland purification facility is characterized in that: the water distribution flower tube is arranged at the bottom layer of the wetland tank body, the upstream of the water distribution flower tube penetrates through the overflow wall and is communicated with the water distribution channel, the filling region is arranged in the wetland tank body, the drainage flower tube is arranged in the filling region, the downstream of the drainage flower tube penetrates through the rear wall of the tank body and is communicated with the terminal drainage protection region, the water collection well is vertically arranged in the filling region and is communicated with the upstream of the drainage flower tube, and the terminal drainage protection region is arranged outside the rear wall of the wetland tank body.
2. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the backwater weir body is a vertical water flow transversely arranged on the top of the front wall of the wetland pool body.
3. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the overflow wall and the wetland tank body are of an integrated structure.
4. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the water distribution channel and the wetland pool body are of an integrated structure.
5. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the diameter of the water distribution floral tube is not less than 100mm, the aperture ratio is 30% -50%, and two layers of non-woven fabrics are wrapped outside.
6. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the diameter of the drainage perforated pipe is not less than 100mm, the aperture ratio is 30% -50%, and two layers of non-woven fabrics are wrapped outside the drainage perforated pipe.
7. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the drainage perforated pipe is communicated with the water collecting well in a socket connection mode.
8. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the top of the water collecting well is provided with an umbrella cap, and the elevation of the well mouth of the water collecting well is 50cm higher than the normal water storage of the wetland pool body.
9. The unpowered riverbed type wetland purification facility as claimed in claim 1, wherein: the filler area is divided into four layers from bottom to top, namely a bottom layer, a middle upper layer and a top planting layer, a non-woven fabric layer is paved at the interval of each layer, the particle size of the filler of the bottom layer and the middle upper layer is 1-3mm, and the particle size of the filler of the middle layer is 5-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221413216.7U CN217458994U (en) | 2022-06-08 | 2022-06-08 | Unpowered riverbed type wetland purification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221413216.7U CN217458994U (en) | 2022-06-08 | 2022-06-08 | Unpowered riverbed type wetland purification facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217458994U true CN217458994U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221413216.7U Active CN217458994U (en) | 2022-06-08 | 2022-06-08 | Unpowered riverbed type wetland purification facility |
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|---|---|
| CN (1) | CN217458994U (en) |
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2022
- 2022-06-08 CN CN202221413216.7U patent/CN217458994U/en active Active
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