CN212713180U - Purify ecological treatment system of sewage - Google Patents
Purify ecological treatment system of sewage Download PDFInfo
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- CN212713180U CN212713180U CN202021872206.0U CN202021872206U CN212713180U CN 212713180 U CN212713180 U CN 212713180U CN 202021872206 U CN202021872206 U CN 202021872206U CN 212713180 U CN212713180 U CN 212713180U
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Abstract
The utility model provides an ecological treatment system for purifying sewage, the system includes: an artificial wetland device, comprising: the drainage equipment is fixed at the bottom of the artificial wetland device; the filter layer is paved on the surface of the drainage equipment; the water distribution equipment is embedded in the surface layer of the filter layer; and an aquatic plant planted in the filter layer; and a dirt cleaning port is arranged at the upstream end of the drainage equipment and used for cleaning sediments in the drainage equipment. The upstream end of the drainage equipment is provided with the sewage cleaning port, and the sediment deposited in the drainage equipment is cleaned by the sewage cleaning port, so that the drainage equipment is prevented from being blocked by the sediment, and the normal operation of the ecological treatment system is ensured. And simultaneously, utilize the utility model provides an ecological treatment system for purifying sewage can with the effectual pollutants such as SS, BOD, nitrogen, phosphorus, heavy metal of getting rid of contaminated water.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an ecological treatment system for purifying sewage.
Background
The constructed wetland ecological sewage treatment system has the advantages of low construction and operation cost, strong decontamination capability, long service life, simple process, diversified combination and the like, and is widely applied all over the world. The artificial wetland treatment method treats the wastewater by means of the synergistic effect of physical, chemical and biochemical reactions among the substrate, the aquatic plants and the microorganisms in the wetland system, and is widely applied due to the characteristics of stable effluent quality, low investment, low energy consumption, strong impact resistance, simple operation and low operating cost.
However, the existing artificial wetland faces the embarrassment of system pipeline blockage after being put into operation for a period of time, and excessive blockage causes the sewage treatment capacity of the wetland ecosystem to be remarkably reduced, thereby influencing the long-term normal operation of the wetland.
Therefore, the prior art is still subject to further improvements and improvements.
Disclosure of Invention
In view of the above-mentioned prior art not enough, the utility model aims at providing a purify ecological treatment system of sewage, aim at solving the current ecological treatment system of purifying sewage problem that easily takes place to block up when moving.
An ecological treatment system for purifying sewage, comprising an artificial wetland device, wherein the artificial wetland device comprises:
the drainage equipment is fixed at the bottom of the artificial wetland device;
the filter layer is paved on the surface of the drainage equipment;
the water distribution equipment is embedded in the surface layer of the filter layer; and
an aquatic plant planted in the filter layer;
and a dirt cleaning port is arranged at the upstream end of the drainage equipment and used for cleaning sediments in the drainage equipment.
According to the ecological treatment system for purifying the sewage, the sewage cleaning port is arranged at the upstream end of the drainage equipment, so that the sediment deposited in the drainage equipment is cleaned by the sewage cleaning port, the drainage equipment is prevented from being blocked by the sediment, and the normal operation of the ecological treatment system is ensured.
Optionally, the ecological treatment system for purifying sewage, wherein the drainage apparatus comprises: a drainage perforated pipe and a sewage disposal pipe; one end of the sewage cleaning pipe is exposed above the filter layer, and the other end of the sewage cleaning pipe is fixedly connected with the upstream end of the drainage perforated pipe.
Optionally, the ecological treatment system for purifying sewage, wherein an outflow control device is fixedly connected to a downstream end of the drainage pipe.
Optionally, the ecological treatment system for purifying sewage, wherein the filter layer sequentially comprises from top to bottom: the waterproof geotextile layer comprises a covering layer, an aerobic layer, a permeable geotextile layer, a transition layer, an anaerobic packing layer and a waterproof geotextile layer.
Optionally, the ecological treatment system for purifying sewage, wherein the covering layer is 100-250mm thick gravel; the water distribution equipment is buried in the covering layer.
Optionally, the ecological treatment system for purifying sewage, wherein the aerobic layer comprises: sand, a phosphorus removal medium, a nitrogen removal medium, a water retention medium and minerals.
Optionally, the ecological treatment system for purifying sewage, wherein the ecological treatment system comprises a sewage treatment system, a sewage treatment system and a sewage treatment system
The transition layer comprises limestone gravels, and the particle size of the limestone gravels is 5-20 mm.
Optionally, the ecological treatment system for purifying sewage comprises: limestone gravel, zeolite, waste bricks, ceramsite, slag and oyster shell.
Optionally, the ecological treatment system for purifying sewage, wherein the water distribution equipment is a water distribution floral tube, and an upstream section of the water distribution floral tube is communicated with the sewage disposal pipe.
Optionally, the ecological treatment system for purifying sewage further comprises: an energy dissipation settling pond and a water outlet gallery; the energy dissipation settling basin is arranged at the water inlet end of the water distribution device, and the water outlet gallery is arranged at the water discharge end of the water discharge device.
Drawings
FIG. 1 is a schematic structural view of an ecological treatment system for purifying sewage according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
When the artificial wetland system is used for treating sewage at present, solid particles in the sewage and filler in a filter layer easily enter a drainage system, so that the drainage system is blocked, the sewage treatment capacity of the artificial wetland system is influenced, and the whole artificial wetland system loses the sewage treatment capacity due to excessive blockage.
Based on this, the present invention provides a solution to the above technical problem, and the details thereof will be explained in the following embodiments.
Referring to fig. 1, as shown in the drawings, an embodiment of the present invention provides an ecological treatment system for purifying sewage, including: an artificial wetland device 10, the artificial wetland device 10 comprising: a drainage device 20, a filter layer 30, a water distribution device 40 and aquatic plants 50; the drainage device 20 is fixed at the bottom of the artificial wetland device 10, and the filter layer 30 is laid on the drainage device 20; the water distribution device 40 is embedded in the surface layer of the filter layer 30, that is, the water distribution device 40 is disposed at the top of the filter layer, but is not exposed outside. Aquatic plants 50 are planted in the filter layer 30. Wherein, the upstream end of the drainage device is provided with a sewage cleaning port 201.
The sewage enters the artificial wetland device 10 from the water distribution device 40, then gradually seeps from the top of the filter layer 30, is filtered by the filter layer 30 and purified by the aquatic plants 50 in the process of seeping, enters the drainage device 20, and is discharged from the drainage device 20. The drain device 20 can be cleaned through the provided drain opening 201. I.e. to clean out the sediment deposited in the drainage device 20 in time to prevent clogging.
Specifically, the constructed wetland device 10 may be designed into a pool according to the sewage treatment capacity, and the bottom and the periphery of the pool are designed to prevent seepage, for example, the undisturbed soil at the bottom of the pool is tamped first, and then waterproof geotextile 301, which is a waterproof material formed by combining geotextile and geomembrane, is laid for seepage prevention. The drainage floral tube 202 is laid on the waterproof geotextile 301, the anaerobic filler layer 302 is laid on the drainage floral tube 202, and the filler of the anaerobic filler 302 layer is composed of limestone gravel, zeolite, waste bricks, ceramsite, slag, oyster shell and the like. Wherein the limestone gravel volume ratio is not less than 50% of the total filler, and the limestone gravel comprises limestone gravels with different particle sizes, the maximum particle size is not more than 50mm, and the minimum particle size is not less than 5 mm. The volume ratio of the zeolite, the waste bricks, the ceramic particles, the slag and the oyster shells is not more than 50 percent of the total volume ratio. Through setting up the anaerobism layer can effectual absorption micro-precipitation and filter the pollutant. The limestone-gravel volume ratio is set to not less than 50% of the total filler, which can reduce the cost.
In the embodiment, a transition layer 303 is laid on the anaerobic filler layer 302, the transition layer 303 is mainly made of broken stones, the broken stones are composed of limestone gravels with different grain sizes and are used for transition between a medium soil layer and the anaerobic filler layer, the thickness is 10-20cm, the maximum grain size is not more than 20mm, and the minimum grain size is not less than 5 mm. And a permeable geotextile layer 304 is laid on the transition layer 303, namely the permeable geotextile is laid on the top of the transition layer and used for preventing medium soil from entering the transition layer and the anaerobic packing layer, so that a drainage perforated pipe in the anaerobic packing layer is prevented from being blocked.
In this embodiment, an aerobic medium layer 305 is laid on the permeable geotextile layer 304, the aerobic medium layer 305 is medium soil with a thickness of 400-. The conductivity of the medium soil saturated water is 200cm/h on average, and the minimum conductivity is 120 cm/h. The thickness of the aerobic medium layer is small when rainwater is treated, and the thickness is large when polluted river water and tail water of a sewage plant treatment plant are treated. And laying a covering layer 306 on the aerobic medium layer 305. The covering layer 306 is 100-250mm thick crushed stone, and the particle size distribution of the covering layer is the same as that of the limestone crushed stone in the transition layer 303. It is easily understood that the water distribution device 40 is buried in the cover layer 306. The water distribution equipment 40 is a water distribution flower pipe, the diameter of which can be 50-200mm, and the distance is 2-3 m. The aquatic plant 50 may be exemplified by Li Hua, Typha orientalis, Ecliptae herba, Phragmites communis, rush, etc.
In this embodiment, a dirt cleaning opening 201 is formed at one end of the drainage pipe 202 close to the inlet of the artificial wetland device 10, the dirt cleaning opening 201 is connected with one end of the dirt cleaning pipe 203, and the other end of the dirt cleaning pipe 203 is exposed above the filter layer 30, it is easy to understand that a high-pressure pump (not shown) is externally connected to one end of the dirt cleaning pipe 203 exposed above the filter layer, and gas or liquid with a predetermined pressure is pumped into the dirt cleaning pipe by using the high-pressure pump to clean the inside of the drainage pipe through the gas or liquid with pressure, so as to clean out the sediment deposited in the drainage pipe, thereby preventing the drainage pipe from being blocked. The cleaning period of the drainage perforated pipe can be carried out according to the running condition of the system.
In one embodiment of this embodiment, a flow meter (not shown) may be connected to the outlet end of the discharge pipe, the flow meter measures the flow rate of water, a flow threshold is set, and when the flow rate is less than the threshold, the discharge pipe 202 is cleaned. It is easy to understand that the setting of the flow threshold value can be set according to the actual operation condition, and is not limited herein.
In one embodiment of this embodiment, the upstream section of the water distribution device 40 is in communication with the blowdown pipe. Specifically, the water distribution device 40 is a water distribution manifold, and a branch pipe (not shown) is disposed near a water inlet end of the water distribution manifold and is communicated with the sewage cleaning pipe through the branch pipe. Namely, the water distribution floral tubes can be cleaned through the cleaning pipes 203, so that the water distribution floral tubes 40 are prevented from being blocked.
In an embodiment of this embodiment, the ecological treatment system for purifying sewage further includes: an energy dissipation settling pond 60 and an outlet gallery 70; the energy dissipation settling pond 60 is arranged at the water inlet of the artificial wetland device 10, namely, sewage firstly enters the energy dissipation settling pond for energy dissipation settling, and the sewage after energy dissipation settling enters the artificial wetland device 10 through a water distribution floral tube.
In this embodiment, a sewage inlet pipe 601 is arranged at the bottom of the energy dissipation settling pond 60, namely, sewage enters the energy dissipation settling pond from the bottom, and a water inlet pipe mouth of the artificial wetland device 10 is arranged at the upper part of the energy dissipation settling pond 60. The sewage is subjected to energy dissipation settlement in the energy dissipation settling pond to remove large particles, and the risk of blocking the water distribution perforated pipe is reduced. The precipitated water automatically flows into the artificial wetland device 10 and uniformly flows into the filter layer through the water distribution floral tubes.
In this embodiment, the outlet gallery 70 is provided at the outlet end of the artificial wetland device 10. The outlet gallery 70 comprises an outflow control apparatus 701 and a drain channel 702. The outflow control device 701 is used for controlling the outflow of the artificial wetland device 10 and the retention time of the sewage in the artificial wetland device 10. The top elevation of the outflow control device 701 is above the top of the transition layer 303 and below the top of the cover layer 306.
Further, the outflow control apparatus 701 includes: a large flow outlet 703 and a small flow outlet 704 and vents (not shown). The residence time of sewage in the anaerobic filler layer can be effectively controlled through the large flow outlet 703 and the small flow outlet 704.
In this embodiment, the treated water flows out of the artificial wetland device 10 through the drainage manifold and then enters the outlet gallery 70, and the outlet gallery 70 can further precipitate the water.
To sum up, the utility model provides an ecological treatment system for purifying sewage, the system includes: an artificial wetland device, comprising: the drainage equipment is fixed at the bottom of the artificial wetland device; the filter layer is paved on the surface of the drainage equipment; the water distribution equipment is embedded in the surface layer of the filter layer; and an aquatic plant planted in the filter layer; and a dirt cleaning port is arranged at the upstream end of the drainage equipment and used for cleaning sediments in the drainage equipment. The upstream end of the drainage equipment is provided with the sewage cleaning port, and the sediment deposited in the drainage equipment is cleaned by the sewage cleaning port, so that the drainage equipment is prevented from being blocked by the sediment, and the normal operation of the ecological treatment system is ensured.
And simultaneously, utilize the utility model provides an ecological treatment system of purification sewage can carry out natural purification with the river of pollution, sewage treatment plant tail water, the rainwater, the river course sediment, engineering dregs processing in-process waste water, effectual Suspended Solid (SS), Biochemical Oxygen Demand (BOD), nitrogen, phosphorus, pollutants such as heavy metal are got rid of, the dry water purification quality after the processing satisfies completely "surface water environmental quality standard" GB3838 IV class water or above index requirement, then discharge and accomodate the water or utilize, still can supply groundwater, river water, landscape water etc..
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. An ecological treatment system for purifying sewage, comprising an artificial wetland device, and is characterized in that the artificial wetland device comprises:
the drainage equipment is fixed at the bottom of the artificial wetland device;
the filter layer is paved on the surface of the drainage equipment;
the water distribution equipment is embedded in the surface layer of the filter layer; and
an aquatic plant planted in the filter layer;
and a dirt cleaning port is arranged at the upstream end of the drainage equipment and used for cleaning sediments in the drainage equipment.
2. The ecological treatment system for purifying sewage of claim 1, wherein the drainage apparatus comprises: a drainage perforated pipe and a sewage disposal pipe; one end of the sewage cleaning pipe is exposed above the filter layer, and the other end of the sewage cleaning pipe is fixedly connected with the upstream end of the drainage perforated pipe.
3. The ecological sewage treatment system according to claim 2, wherein an outflow control device is fixedly connected to a downstream end of the discharge pipe.
4. The ecological treatment system for purifying sewage of claim 1, wherein the filter layer comprises, from top to bottom: the waterproof geotextile layer comprises a covering layer, an aerobic layer, a permeable geotextile layer, a transition layer, an anaerobic packing layer and a waterproof geotextile layer.
5. The ecological treatment system for purifying sewage of claim 4, wherein the covering layer is 100-250mm thick gravel; the water distribution equipment is buried in the covering layer.
6. The ecological treatment system for purifying sewage of claim 4, wherein the transition layer comprises limestone gravels having a particle size of 5-20 mm.
7. The ecological treatment system for purifying sewage of claim 2, wherein the water distribution equipment is a water distribution floral tube, and an upstream section of the water distribution floral tube is communicated with the sewage cleaning tube.
8. The ecological treatment system for purifying wastewater of claim 1, further comprising: an energy dissipation settling pond and a water outlet gallery; the energy dissipation settling basin is arranged at the water inlet end of the water distribution equipment, and the water outlet gallery is arranged at the water discharge end of the water discharge equipment.
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| CN202021872206.0U CN212713180U (en) | 2020-08-31 | 2020-08-31 | Purify ecological treatment system of sewage |
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| CN202021872206.0U CN212713180U (en) | 2020-08-31 | 2020-08-31 | Purify ecological treatment system of sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960619A (en) * | 2020-08-31 | 2020-11-20 | 深圳大学 | Purify ecological treatment system of sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960619A (en) * | 2020-08-31 | 2020-11-20 | 深圳大学 | Purify ecological treatment system of sewage |
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