CN113998845A - A water body ecological restoration system - Google Patents
A water body ecological restoration system Download PDFInfo
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- CN113998845A CN113998845A CN202111469941.6A CN202111469941A CN113998845A CN 113998845 A CN113998845 A CN 113998845A CN 202111469941 A CN202111469941 A CN 202111469941A CN 113998845 A CN113998845 A CN 113998845A
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- 239000010865 sewage Substances 0.000 claims abstract description 24
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 17
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- 239000010457 zeolite Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
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- 229910052802 copper Inorganic materials 0.000 claims description 3
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- 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
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a water body ecological restoration system, which comprises an ecological purification unit, an ecological filtering unit, a water quality sensing assembly, an electromagnetic valve system and a master control system, wherein the ecological purification unit comprises a treatment area A and submerged plants, which are enclosed in a water body by a water permeable enclosure A, and the enclosure A is provided with a water inlet pipe a and a water outlet pipe a; the ecological filtering unit comprises a water distribution well, a contact oxidation area I, a contact oxidation area II, an electrochemical phosphorus removal area and a precipitation area which are sequentially communicated, wherein the contact oxidation area I is provided with a filler I and an aeration disc I, the contact oxidation area II is provided with a filtering layer and turf, aeration branch pipes are respectively paved in the contact oxidation area I and the contact oxidation area II, air inlets of the aeration branch pipes are gathered on an aeration main pipe, and at least one group of positive and negative electrode groups are arranged in the electrochemical phosphorus removal area; the ecological purification unit and the ecological filtration unit realize water body exchange through the exchange tube group a. A plurality of unit blocks are adopted to restore the water body, and the sewage is efficiently treated.
Description
Technical Field
The invention relates to the field of environmental engineering, in particular to a water body ecological restoration system.
Background
In recent years, along with the rapid development of economy in China, the progress of urbanization is accelerated, so that river pollution in China is increasingly serious. In some underdeveloped areas, rivers are used as drinking water and main water sources for household, farming, industry and the like, and if the rivers are seriously polluted, the rivers seriously damage the physical and mental health of human beings and the ecological system of the rivers; the urban development can not leave the balance of a river ecosystem, and the river with a good ecosystem can provide good living environment and rich urban landscape for residents.
For the restoration of surface water bodies such as rivers, lakes and the like, the current advanced and scientific idea is ecological water control, and in terms of a specific technical development trend, the artificial wetland technology is a new technology developed at home and abroad in recent ten years and successfully used for the restoration of the polluted water bodies, and is also an important trend of the development of the ecological restoration technology. At present, the polluted river water is treated by mostly adopting a single artificial wetland technology in China, so that a water quality purification unit is difficult to treat the polluted water with high pollution load, and the removal rate of total phosphorus and COD in the water body is low.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a water body ecological restoration system, which adopts a plurality of unit blocks to restore a water body, utilizes the water purified by a river as a qualified water source to carry out ecological water regulation inside, can correspondingly treat different pollution conditions and efficiently treat sewage.
The technical scheme of the invention is as follows: a water body ecological restoration system is disclosed, wherein water banks are arranged on two sides of a water body, bottom mud is arranged at the bottom of the water body, the water body ecological restoration system comprises an ecological purification unit, an ecological filtering unit, a water quality sensing assembly, an electromagnetic valve system and a master control system, the ecological purification unit comprises a treatment area A enclosed by a water-permeable enclosure A in the water body and submerged plants planted at the bottom of the area, and the enclosure A is provided with a water inlet pipe a for allowing an external water body to enter the area and a water outlet pipe a for discharging the treated water into the external water body; an ecological filtering unit comprises a water distribution well, a contact oxidation area I, a contact oxidation area II, an electrochemical phosphorus removal area and a precipitation area which are positioned on a water bank and are sequentially communicated, wherein the contact oxidation area I is provided with a filler I and an aeration disc I positioned below the filler I, the contact oxidation area II is provided with a filter layer and turf paved on the filter layer, the filter layer is provided with a plurality of filter holes, aeration branch pipes are respectively paved on the contact oxidation area I and the contact oxidation area II, air inlets of the aeration branch pipes are gathered on an aeration main pipe which is connected with a fan, at least one group of positive and negative electrode groups are arranged in the electrochemical phosphorus removal area, wherein the positive electrode group can be made of iron or aluminum, the negative electrode group can be made of aluminum, copper or inert electrode materials, the water distribution well is connected with a water inlet pipe c which can be used for water in the water bank to enter, the submerged area is connected with a water outlet pipe c for discharging the treated water into a water body; the ecological purification unit and the ecological filtration unit realize water body exchange through an exchange pipe group a, the exchange pipe group a comprises a water pipe a connected to a water outlet pipe a and a return pipe a connected to a water inlet pipe a, the water outlet end of the water pipe a is connected with a water inlet pipe c, the water inlet end of the return pipe a is connected with a water outlet pipe c, the fan and the positive and negative electrode groups are controlled by a master control system, the electromagnetic valve system is also controlled by the master control system, the water body in a water bank can be driven to enter the ecological purification unit and/or the ecological filtration unit for treatment, and the treated water of the ecological purification unit can be driven to exchange with the treated water of the ecological filtration unit; the water quality sensing assembly is used for detecting the water quality conditions of the treatment area A and the sedimentation area and transmitting the water quality conditions to the master control system for analysis and treatment, and when the water quality conditions reach set values, the master control system can control the work of the solenoid valve system, so that the treatment water in the treatment area A and the sedimentation area is discharged into the external water.
Preferably, the water bank is equipped with sewage discharge pipe, ecological repair system of water still includes: the ecological intercepting unit comprises a treatment area B enclosed in a water body by a water-permeable enclosure B, an aeration disc II, a filler II, a planting floating bed and emergent aquatic plants planted on the floating bed, wherein the sewage discharge pipe is communicated into the treatment area B, a water inlet pipe B for allowing external water to enter the area and a water outlet pipe B for discharging the treated water into the external water are arranged on the enclosure B, the ecological intercepting unit and the ecological filtering unit realize water body exchange through an exchange pipe group B, the exchange pipe group B comprises a water conveying pipe B connected to the water outlet pipe B and a return pipe B connected to the water inlet pipe B, the water outlet end of the water conveying pipe B is connected with a water inlet pipe c or a water conveying pipe a, the water inlet end of the return pipe B is connected with a return pipe a or the water outlet pipe c, and an electromagnetic valve system can control the treated water in the settling area to be discharged into the external water body, Flows into the treatment area A of the ecological purification unit through a return pipe a or flows into the treatment area B of the ecological intercepting unit through a return pipe B.
Preferably, the water outlet pipe a is further connected with a water delivery pipe d, the water outlet end of the water delivery pipe d is connected with a water inlet pipe B or a return pipe B, and the electromagnetic valve system can control the treated water of the ecological purification unit to be discharged into an external water body, flow into a distribution well of the ecological filtration unit through the water delivery pipe a or flow into a treatment area B of the ecological interception unit through the water delivery pipe d.
The invention has the following beneficial effects:
in the ecological purification unit, the ecological purification unit is fixed in water body bottom sediment through an enclosure A, a treatment area A is enclosed in the water body, the root system of a submerged plant is inserted into the bottom sediment, external water enters the treatment area A through a water inlet pipe a, the submerged plant in the area absorbs nitrogen and phosphorus in water in the growth process, the water body is controlled to be eutrophicated, the aeration tissue of the submerged plant is developed, a large amount of oxygen can be secreted to perform gas exchange, the dissolved oxygen of the water body is improved, and the clear water stability of the water body in the area is maintained;
in the ecological filtering unit, a biomembrane is generated on the surface of a filler I in a contact oxidation area I, organic matters in water are in contact with the biomembrane and are decomposed and absorbed by microorganisms, aerobic and anaerobic areas exist on the surface and inside of the biomembrane and can be subjected to nitrification and denitrification to remove nitrogen, an aeration disc is placed at the bottom of the filler I to provide a large amount of dissolved oxygen for a water body so as to improve the removal rate of the organic matters, most suspended matters in the water can be intercepted through a filter layer of the contact oxidation area II to reduce the turbidity of the water, a plant root system of a turf forms the biomembrane to remove N, P in the water, an electrochemical phosphorus removal area causes phosphate in the water to react with anode metal ions to generate insoluble precipitates through electrolysis, meanwhile, hydrogen generated at a cathode can generate an air flotation effect in sewage so that particles in the sewage float to the surface and are gradually condensed into large particles after flowing into the precipitation area, and then sink to the bottom of the area, the SS removing effect is improved, and the sediment can be manually removed.
The ecological intercepting unit is used for collecting high-concentration domestic sewage and rainwater discharged by the sewage discharge pipe, effectively intercepting and treating rainwater and mixed flow sewage at the initial stage of discharge, treating water in a water body when no sewage is discharged, enabling the root system of emergent aquatic plants II planted on a floating bed to be developed, enabling the root system to form a biological membrane, absorbing organic matters, nitrogen and phosphorus and other substances in the water, enabling the root part to supply dissolved oxygen to the water body, facilitating the growth of aerobic microorganisms, enabling the biological membrane to be generated on the surface of a filler II placed under the floating bed, degrading and absorbing the organic matters, nitrogen and phosphorus, enabling the aeration discs to be distributed at the bottom of a treatment area B, providing a large amount of dissolved oxygen to the water body, improving the removal rate of the organic matters, carrying out strengthening treatment on the sewage and reducing the subsequent treatment load of the sewage directly discharged into a natural water body;
meanwhile, the water permeable enclosure is used for isolating, so that the relative sealing of the area is realized, the local water in the area is purified firstly, and the purified water is exchanged to drive the peripheral water body to be purified.
The master control system can be controlled by the electromagnetic valve system according to specific water quality conditions, so that external water enters the processing area A of the ecological purification unit for purification treatment, and when the water quality sensor senses that the water quality is qualified, the electromagnetic valve system is used for controlling the regional processed water to be discharged into the external water to realize automatic ecological water regulation; when the water quality is not accordant, the treated water in the area is discharged to the ecological filtering unit or the ecological intercepting unit for secondary treatment by controlling the electromagnetic valve system according to the water quality condition, the treated water in the ecological filtering unit can flow back to the ecological purifying unit and can also flow to the ecological intercepting unit for tertiary treatment, the treated water in the treatment area B of the ecological intercepting unit is directly discharged to the external water body or the ecological filtering unit is treated again by controlling the electromagnetic valve system, and when the treated water of the ecological purifying unit is detected not to be further treated, the water body can be directly discharged into the ecological filtering unit for treatment by controlling the main control system, and certainly, when the sewage discharge pipe does not discharge the sewage, the water body can also be directly discharged into the ecological intercepting unit for treatment.
The master control system can control the water exchange amount and the exchange frequency of the ecological purification unit and the surrounding water body, the ecological purification unit and the ecological filtering unit or the ecological interception unit carry out water exchange, the water exchange amount frequency and other parameters, and the air quantity of the fan, the electrochemical phosphorus removal current and other parameters.
The invention is further provided with a filler I which is a suspension filler, and a filter layer which is formed by laying one or more of gravel, zeolite, shells and ceramsite.
Preferably, the porosity of the filter layer is 30-40%.
By adopting the above further arrangement, the contact oxidation area I uses the suspended filler, the gap of the tank body is large, N, P, organic matters and the like are removed by utilizing the biomembrane of the suspended filler, and then the biomembrane enters the contact oxidation area II, the filter layer adopts gravel, zeolite and the like, the pores are small, and SS or particle impurities can be removed conveniently.
According to the further arrangement of the invention, a plurality of water-stop sheets are arranged in the contact oxidation area II, and adjacent water-stop sheets are arranged in a staggered manner.
By adopting the above further arrangement, the adjacent water-stop plates are staggered, so that the water body flows in a zigzag manner, the flow velocity is reduced, the hydraulic retention time is prolonged, and the blocking effect is good.
The invention is further provided with a plurality of rows of aeration areas distributed on the surface of the aeration disc at intervals, a plurality of aeration heads are arranged on each row of aeration areas, an air chamber is arranged in the aeration disc, and an air pipe connector is arranged on the side edge of the aeration disc.
Preferably, the interval between adjacent aeration zones is 0.8-1.2m, the aeration time is 8-14h, and the aeration gap is 8-14 h.
By adopting the further arrangement, the aeration disc is simple in structure and good in aeration effect.
According to the further arrangement of the invention, the filler II accounts for 50-80% of the volume of the treatment area B, can be a suspension type filler and is hung on the planting floating bed.
By adopting the above further arrangement, the filler II is hung on the floating bed, the installation is convenient, the gap of the treatment area B is large, N, P, organic matters and the like are removed by utilizing the biological film hung with the filler,
the invention is further provided with a plurality of meshes at the bottom of the enclosure A, and the root system of the submerged plant passes through the meshes and is inserted into the sediment of the water body.
By adopting the above further arrangement, the submerged plant is convenient to plant and sinks to the bottom of the water body along with the enclosure A.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
FIG. 2 is a block diagram of piping connections between units according to an embodiment of the present invention;
FIG. 3 is a view showing the internal structure of an ecological purification unit according to an embodiment of the present invention;
FIG. 4 is a layout diagram of aeration pipelines in an ecological filtering unit according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is an internal structural view of an ecological filtering unit according to an embodiment of the present invention;
fig. 7 is an internal structure view of an ecological intercepting unit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the descriptions in the present invention as referring to "a", "B", "I", "II", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
As shown in fig. 1-7, the water body ecological restoration system of the present invention, wherein both sides of a water body 1 are provided with water banks 2, bottom has bottom mud, the water body ecological restoration system includes an ecological purification unit 3, an ecological filtration unit 4, a water quality sensing component, an electromagnetic valve system and a master control system, the ecological purification unit 3 includes a treatment area a 32 enclosed by a water permeable enclosure a 31 in the water body and submerged plants 33 planted at the bottom of the area, the submerged plants 33 are one or more of eel grass, goldfish algae, watermifoil algae and hydrilla verticillata, the enclosure a 31 is provided with a water inlet pipe a 51 for an external water body 1 to enter the area and a water outlet pipe a 52 for discharging the treated water into the external water body 1; the ecological filtering unit 4 comprises a water distribution well 41, a contact oxidation area I42, a contact oxidation area II 43, an electrochemical phosphorus removal area 44 and a precipitation area 45 which are positioned on a water bank 2 and are sequentially communicated, wherein the contact oxidation area I42 is provided with a filler I421 and an aeration disc I422 positioned below the filler I421, the filler I421 is a film-hanging filler or a spherical filler, the contact oxidation area II 43 is provided with a filtering layer 431, a non-woven fabric positioned on the filtering layer 431, a planting soil layer 432 paved on the non-woven fabric and a 433 planted on the soil layer, the filtering layer 431 is provided with a plurality of filtering holes, the filtering layer 431 is paved by one or more of gravel, zeolite, shell and ceramsite, the porosity of the filtering layer 431 is 30-40%, and a plurality of water-resisting plates 434 are arranged in the contact oxidation area II 43, the adjacent water-stop plates are arranged in a staggered manner, aeration branch pipes 46 are respectively laid in the contact oxidation area I42 and the contact oxidation area II 43, the air inlets of all the aeration branch pipes 46 are gathered on an aeration main pipe 47, the aeration main pipe 47 is connected with a fan, at least one group of positive and negative electrode groups are arranged in the electrochemical phosphorus removal area 44, wherein the positive electrode component 441 can be made of iron or aluminum, the negative electrode component 442 can be made of aluminum, copper or inert electrode materials, the water distribution well 41 is connected with a water inlet pipe c 411 into which the water body 1 at the inner side of the water bank 2 can enter, and the submerged area 45 is connected with a water outlet pipe 451 c which discharges the treated water into the water body 1; the ecological purification unit 3 and the ecological filtration unit 4 realize water body exchange through an exchange pipe group a, the exchange pipe group a comprises a water delivery pipe a 61 connected to a water outlet pipe a 52 and a return pipe a 62 connected to a water inlet pipe a 51, the water outlet end of the water delivery pipe a 61 is connected with a water inlet pipe c 411, the water inlet end of the return pipe a 62 is connected with a water outlet pipe c 451, a master control system is a computer PC processing end, the fan, the positive and negative electrode groups are controlled by the master control system, the electromagnetic valve system is also controlled by the master control system, the water body 1 in the water bank 2 can be driven to enter the ecological purification unit 3 and/or the ecological filtration unit 4 for processing, and the processed water of the ecological purification unit 3 can be driven to exchange with the processed water of the ecological filtration unit 4; the water quality sensing assembly is used for detecting the water quality conditions of the treatment area A32 and the sedimentation area 45 and transmitting the water quality conditions to the master control system for analysis and treatment, and when the water quality conditions reach set values, the master control system can control the work of the solenoid valve system, so that the treatment water in the treatment area A32 and the sedimentation area 45 is discharged into the external water 1; install sewage discharge pipe 21 on bank 2, the ecological repair system of water still includes: the ecological intercepting unit 7 comprises a treatment area B72 enclosed in a water body 1 by a water permeable enclosure B71, an aeration disc II 73, a filler II 74, a planting floating bed 75 and emergent aquatic plants 76 planted on the floating bed 75, wherein the emergent aquatic plants are one or more of reed, wild rice stem, allium fistulosum and canna, the aeration disc II 73 is connected with a fan, the sewage discharge pipe 21 is introduced into the treatment area B72, the enclosure B71 is provided with a water inlet pipe B81 for an external water body 1 to enter and a water outlet pipe a 82 for discharging the treated water into the external water body 1, the ecological intercepting unit 7 and the ecological filtering unit 4 realize water body exchange through an exchange pipe group B, the exchange pipe group B comprises a water conveying pipe B91 connected to the water outlet pipe B82 and a return pipe B92 connected to the water inlet pipe B81, the water outlet end of the water delivery pipe B91 is connected with the water inlet pipe c 411 or the water delivery pipe a 61, the water inlet end of the return pipe B92 is connected with the return pipe a 62 or the water outlet pipe c 451, and the solenoid valve system can control the treated water in the settling area 45 to be discharged into the external water body 1, flow into the treatment area A32 of the ecological purification unit 3 through the return pipe a 62 or flow into the treatment area B72 of the ecological intercepting unit 7 through the return pipe B92; the water outlet pipe a 52 is also connected with a water delivery pipe d 93, the water outlet end of the water delivery pipe d 93 is connected with a water inlet pipe B81 or a return pipe B92, the electromagnetic valve system can control the treated water of the ecological purification unit 3 to be discharged into the external water body 1, flow into the distribution well 41 of the ecological filtering unit 4 through the water delivery pipe a 61 or flow into the treatment area B72 of the ecological interception unit 7 through the water delivery pipe d 93, each pipeline is provided with a one-way valve, and the water inlet pipe and the water outlet pipe are provided with water suction pumps; a plurality of rows of aeration areas are distributed on the surface of the aeration disc at intervals, a plurality of aeration heads are arranged on each row of aeration areas, an air chamber is arranged in the aeration disc, and an air pipe connector is arranged on the side edge of the aeration disc; the interval between adjacent aeration zones is 0.8-1.2m, the aeration time is 8-14h, and the aeration gap is 8-14 h; the filler II 74 accounts for 50-80% of the volume of the treatment area B72, the filler II 74 can be a suspension type filler and is hung on the planting floating bed 75, and the filler II 74 can also be a spherical filler; the bottom of the enclosure A31 is provided with a plurality of meshes, and the root systems of the submerged plants 33 penetrate through the meshes and are inserted into the bottom mud of the water body 1.
When in use, the utility model is used for cleaning the inner wall of the tank,
the external water body 1 enters a treatment area A32 of the ecological purification unit 3 through a water inlet pipe a 51, and nitrogen and phosphorus in water are absorbed and dissolved oxygen in the water is increased through treatment of submerged plants 33 in the area;
rainwater and domestic sewage discharged by the sewage discharge pipe 21 enter a treatment area B72 of the ecological interception unit 7, when no sewage is discharged, an external water body 1 can be treated, the external water body enters the treatment area B72 through a water inlet pipe B81, a biological film is formed through root systems of emergent aquatic plants II 76 planted on a floating bed 75, organic matters, nitrogen, phosphorus and other substances in water are absorbed, dissolved oxygen can be supplied to the water body through the root portions, the growth of aerobic microorganisms is facilitated, the biological film is generated on the surface of a filler II 74 placed under the floating bed 75, the organic matters, nitrogen and phosphorus can be degraded and absorbed, an aeration disc 73 is distributed at the bottom of the treatment area B72, a large amount of dissolved oxygen is supplied to the water body, the removal rate of the organic matters is improved, and the sewage is subjected to strengthening treatment;
the water quality sensing assembly monitors the water quality of the processing area A32 in real time and transmits the information to the master control system for analysis and processing,
when the water quality reaches the standard, the electromagnetic valve control system controls the treated water in the treatment area A32 to be discharged into the external water body 1 through the water outlet pipe a 52 for ecological water regulation;
when the water quality does not reach the standard, the water is circularly treated in each unit, the treated water in the treatment area A32 is controlled by the electromagnetic valve control system to enter the treatment area B72 of the ecological pipeline unit 7 through the water conveying pipe d 93 or enter the water distribution well 41 of the ecological filtering unit 4 through the water conveying pipe 61 for secondary treatment, in the ecological filtering unit, a biofilm is generated on the surface of the filler I421 of the contact oxidation area I42, organic matters in the water are contacted with the biofilm and are decomposed and absorbed by microorganisms, aerobic and anaerobic areas exist on the surface and inside of the biofilm for nitrification and denitrification to remove nitrogen, the aeration disc I422 is placed at the bottom of the filler I421 to provide a large amount of dissolved oxygen for the water body to improve the removal rate of the organic matters, most suspended matters in the water can be intercepted by the filtering layer 431 of the contact oxidation area II 43 to reduce the turbidity of the water, the electrochemical phosphorus removal region 44 is configured to react phosphate in water with anode metal ions by electrolysis to generate water insoluble precipitates, and at the same time, the hydrogen generated at the cathode can generate air floating effect in the sewage, so that the particulate matters in the sewage float to the surface and then flow into the precipitation area 45 for precipitation to obtain clarified water, the treated water of the ecological filtering unit 4 can flow back to the ecological purifying unit 3 through the return pipe a 62 and can also flow to the ecological intercepting unit 7 for three times of treatment, the treated water in the treatment area B72 of the ecological intercepting unit 7 is directly discharged into the external water body 1 or flows to the ecological filtering unit 4 for treatment again through the water conveying pipe B91 under the control of the solenoid valve system, of course, when the total control system detects that the load of the ecological filtering unit is small, the external water body can be controlled to directly enter the unit through the water inlet pipe c 411 to process the water body 1.
Claims (10)
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| CN202111469941.6A CN113998845A (en) | 2021-12-03 | 2021-12-03 | A water body ecological restoration system |
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| CN202111469941.6A CN113998845A (en) | 2021-12-03 | 2021-12-03 | A water body ecological restoration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385524A (en) * | 2022-08-23 | 2022-11-25 | 江西省生态环境科学研究与规划院 | Method for comprehensively restoring lake and reservoir water ecological environment system |
| CN121336695A (en) * | 2025-12-18 | 2026-01-16 | 中国电建集团华东勘测设计研究院有限公司 | Irrigation District Water Resource Recycling System Integrating Regulation, Purification, and Reuse |
-
2021
- 2021-12-03 CN CN202111469941.6A patent/CN113998845A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385524A (en) * | 2022-08-23 | 2022-11-25 | 江西省生态环境科学研究与规划院 | Method for comprehensively restoring lake and reservoir water ecological environment system |
| CN121336695A (en) * | 2025-12-18 | 2026-01-16 | 中国电建集团华东勘测设计研究院有限公司 | Irrigation District Water Resource Recycling System Integrating Regulation, Purification, and Reuse |
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