WO2016184294A1

WO2016184294A1 - System for controlling severe eutrophication of lake bay

Info

Publication number: WO2016184294A1
Application number: PCT/CN2016/080122
Authority: WO
Inventors: 周强
Original assignee: 周强
Priority date: 2015-05-18
Filing date: 2016-04-25
Publication date: 2016-11-24
Also published as: CN104803496B; CN104803496A

Abstract

Disclosed is a system for controlling the severe eutrophication of a lake bay, comprising a bottom-layer water pool (1), a pressure-regulating reservoir (16), a lift water gate (6), a fan-shaped water inlet channel (3), a water pump (8), a wind-solar complementary power supply system (25), an auto-control backwash system, and a micro/nano air bubble generator dual-machine linkage unit (24). The present invention can conveniently address the problem of reoxygenation of anaerobic water in the bottom layer of the lake bay while increase the water flow rate and self-cleaning capability of the lake bay water, thereby effectively controlling the eutrophication of the lake bay.

Description

Huwan Heavy Eutrophication Control System

Technical field

The invention relates to an ecological management system, in particular to a Huwan severe eutrophication treatment system.

Background technique

Many lakes in the lake, due to the curved terrain, the water change period is longer than the middle of the lake, and the wind and waves from the lake to the lakeshore are often more likely to produce and gather a large number of algae, thus forming a heavily eutrophic area in the lake bay. . From a certain point of view, it can be said that whether or not the eutrophication of the Bay Area can be completely controlled will have a bearing on the success or failure of the effect of the whole lake. This is a major issue that must be addressed in the governance process.

In the heavily eutrophic Lake Bay area, the lack of dissolved oxygen in the bottom of the lake and the more difficult replacement of the lake water are the two dominant factors for the formation of severe eutrophication in the Bay Area, and are the more difficult factors to crack. This requires the use of more targeted special technical means. To this end, the invention of a "huwan heavy eutrophication" governance system technology with stronger cracking ability and better comprehensive effect is of great significance for the thorough management of lake eutrophication.

The patent number is ZL201420115139.6. The patent name is a patent for the lake eutrophication control system that preserves cage culture. According to the two dominant factors of dissolved oxygen deficiency in the bottom water of the lake and relatively static water surface of the lake, it is creatively proposed to build In the lake bay area of the dam, to control the eutrophication of lakes, combined with the construction and management area of the lakeside urban and rural sewage treatment plant The construction of the landscape within the domain, maintaining the sustainable development of the cage culture industry, and the gradual recovery of investment costs provide a good solution. It is a feasible technical approach. However, due to the construction of facilities such as the algae dam body, the low-water hair power station and the sewage treatment plant, the requirements for site selection are relatively high. The one-time overall investment is also relatively large, so there are certain location limitations in the implementation process, the location is geographical location and economic location.

In order to make all kinds of “lakeside line type” lakes and bays improve the water flow speed of the water body, it can easily solve the reoxygenation problem of the bottom anaerobic water, and create the self-purification capacity and water ecological restoration of the water body in the Huwan area. Advantageous conditions, while reducing construction costs as much as possible. These real-world needs have also spawned a new governance technology program.

Summary of the invention

The object of the present invention is to provide a heavy eutrophication control system for solving the above problems, which can conveniently solve the problem of reoxygenation of the anechoic water at the bottom of the lake, and at the same time, can improve the water flow speed of the water body and enhance the water of the lake. Self-purification ability to effectively control the eutrophication of Huwan.

In order to achieve the above object, the technical solution adopted by the present invention is as follows: a Huwan severe eutrophication control system, including a lakeside rock foundation in a lake bay, a lakeside mountain body, a lakeside water body, and a water body connected within the lakeside rock soil foundation. On one side, there is a bottomed pool with a top cover. The bottom of the bottom pool is lower than the bottom of the lake. The bottom of the water body is provided with a fan-shaped inlet pipe connected to the bottom pool. The fan-shaped inlet pipe is fan-shaped and is provided by a plurality of upper surfaces. The water pipe with the water inlet hole is connected, and the outer wall of the bottom water pool is provided with a water inlet, and the water inlet is connected with a main water pipe, and the fan-shaped water inlet pipe is connected to the main water pipe through a water pipe at the end of the round water pipe, and the bottom layer There is also a lifting sluice in the pool to control the opening and closing of the water inlet;

The lakeside rock and soil foundation is provided with a pressure regulating reservoir and a water pump. The top of the pressure regulating reservoir is provided with a cover plate, and the water inlet pipe of the water pump extends from the top of the bottom pool to the bottom of the bottom pool, and the water outlet pipe of the water pump is divided into two paths. One way is bent upwards, connected to a micro-nano bubble generating device located on the cover plate, and extends from the cover plate to the upper portion of the pressure regulating reservoir, the outlet pipe is connected with a horn-shaped nozzle at the end, and the other road is bent downward and connected. a backwashing water pipe, the backwashing water pipe is horizontally arranged, one end extends into the lower part of the pressure regulating reservoir, the other end extends into the top of the bottom pool, and is connected with a horn-shaped nozzle, and the two ends of the outer side of the pressure regulating water tank are further provided There is a bottom water pipe;

The bottom of the bottom pool and the pressure regulating reservoir are provided with an air inlet, and the bottom water outlet pipe is adjacent to the pressure regulating reservoir, the two outlet pipes of the bottom pool are close to the water pump, and the backwashing water pipe is close to the bottom pool, and electromagnetic valves are provided;

The top of the pressure regulating reservoir is provided with a control room for controlling the operation of the lift sluice, the solenoid valve and the water pump. The control room is also provided with a solar power supply device, wherein the solar panel of the solar power supply device is located at the top of the control room.

Preferably, the first micro-nano bubble oxygenation tank is disposed on both sides of the pressure-regulating reservoir, and the bottom water pipeline is connected to the water inlet of the first micro-nano bubble oxygenation tank, and the first micro-nano bubble oxygenation tank The micro-nano bubble generator dual-machine coupling group for the internal oxygenation and the wind-solar complementary power supply system for the micro-nano bubble generator dual-machine coupling group, the water outlet of the first micro-nano bubble oxygenation tank is located at the lake level under.

Preferably, the water outlet of the first micro-nano bubble oxygenation tank is also connected with a micro-nano bubble exhaust pipe, and the micro-nano bubble exhaust pipe is close to the lake shore and along the lakeside rock-soil foundation edge. It is linearly arranged with several flared nozzles with openings facing down.

Preferably, the lakeside mountain body is provided with a intercepting pipe for intercepting the mountain water source, the water outlet of the intercepting pipe is connected to a water pool through a nanofiltration membrane water purifying device, and the second micro-nano bubble oxygenation pool is connected with the bottom of the water pool. The second micro-nano bubble oxygenation tank is provided with a micro-nano bubble generator double-machine linkage group for oxygenating the interior thereof, and a wind-solar complementary power supply system for supplying the micro-nano bubble generator dual-machine linkage unit, the second micro The water outlet of the nanobubble oxygenation tank extends below the lake level.

Preferably, the water outlet of the second micro-nano bubble oxygenation tank is also connected with a micro-nano bubble exhaust pipe, the micro-nano bubble exhaust pipe is close to the shore of the lake, the coastal side is horizontally disposed, and several are arranged thereon. Flared nozzle with the opening facing down.

Preferably, the upper part of the pressure regulating reservoir is provided with an overflow water pipe, and one end of the overflow water pipe is connected to the pressure regulating water storage tank, and the other end is bent downward and vertically disposed along the outer wall of the pressure regulating storage tank.

Preferably, the bottom pool is elliptical, the top is flush with the surface of the lakeside rock and soil, and the cover is surrounded by a guardrail.

Preferably, the lakeside rock soil is provided with a cistern base, and the pressure regulating reservoir is fixedly disposed on the base of the cistern.

Preferably, the main water pipe is provided with a dissolved oxygen sensor.

The advantages of the present invention over the prior art are:

With simple and easy-to-build “bottom pool”, “pressure-regulating reservoir”, “lifting sluice” and “self-controlled backwashing”, it can realize the long-term existence of heavy eutrophic lake water body. Oxygen water can be re-oxidized efficiently, and the backwashing function can also be used to flush and block the pipeline blockage caused by algae accumulation. The above functions need to cooperate with the solenoid valve to work. Close the downwardly bent outlet pipe and the solenoid valve on the backwashing water pipe. When the other solenoid valve is opened, the reoxygenation function can be completed, and vice versa.

During reoxygenation; because the bottom of the bottom pool is lower than the bottom of the lake, and the fan inlet is located at the bottom of the water, the bottom of the bottom pool is lower than the fan inlet. Due to the difference in height, the anaerobic water at the bottom of the bay can The upper water pressure of the lake water enters the bottom pool through the fan-shaped inlet pipe and the water pipe, and the anaerobic water contacts the air in the bottom pool, and the air firstly “re-oxygenizes” the anaerobic water at the gas-liquid interface;

The water pumped by the water pump communicates with the micro-nano bubble generating device disposed on the cover of the pressure regulating reservoir above the pipeline before flowing into the pressure regulating reservoir. At this time, the water is mixed with the micro-nano bubbles generated by the micro-nano bubble generating device. Perform a second "reoxygenation" in the lumen of the outlet pipe; finally, spray the "water mist" from the flared nozzle, and when the "water mist" containing the nanobubbles flows from the upper part of the pressure regulating reservoir to the lower part, It is mixed with the air in the pool for a third "reoxygenation". Eventually, the oxygen content of the lake flowing out of the pressure regulating reservoir was greatly increased. At this time, the original anaerobic water has become oxygen-enriched water. After reoxygenation, the lake water enters the first micro-nano bubble oxygenation pool located on both sides of the pressure-regulating reservoir through the bottom water pipeline, and is again strongly oxygenated by the micro-nano bubble generator double-machine linkage group, and then micro-nano The horn nozzle of the bubble exhaust pipe is pressurized and discharged, and the reoxygenated water can be discharged into the bottom of the lake because the outlet of the first micro-nano bubble oxygenation tank is located below the lake level.

During backwashing, it includes washing to clear the blockage in the fan-type water inlet pipe, and clearing the blockage in the back-flushing pipeline below the pressure regulating reservoir, wherein the solenoid valve switch and the lift sluice switch are required. The above operations are automatically controlled by the computer in the control room.

The above functions enable the ability to re-oxygenate using the lake's own water source. Based on the above functions Structure, we also have a intercepting pipe, nanofiltration membrane, pool and other equipment to intercept the mountain water source on the lakeside mountain. It can intercept and collect the water source in the mountain, and use the “micro-nano bubble generator double-machine linkage group”. After high-efficiency treatment with “nanofiltration membrane”, on the one hand, the treated mountain water source can be used for farmland irrigation and other places, on the other hand, the oxygen-enriched water source after the oxygenation of the Huwan mountain can be concentrated into the lake. In the meantime, while purifying the water body, it accelerates the flow of the lake water and improves the water exchange speed of the lake.

DRAWINGS

1 is a schematic structural view of Embodiment 1 of the present invention;

Figure 2 is a plan view of the fan-type inlet pipe of Figure 1;

Figure 3 is a flow diagram of water flow during reoxygenation in Figure 1;

Figure 4 is a water flow diagram of the backwashing in Figure 1;

Figure 5 is a schematic structural view of Embodiment 2;

6 is a schematic view showing the connection between the pressure regulating reservoir and the first micro-nano bubble oxygenation tank in Embodiment 2.

In the figure: 1, the bottom pool; 2, the pool base; 3, the fan-type inlet pipe; 4, the water pipe; 5, the air inlet; 6, the lift sluice; 7, the inlet pipe; 8, the water pump; 10, outlet pipe; 11, micro-nano bubble generating device; 12, guardrail; 13, control room; 14, solar panels; 15, flared nozzle; 16, pressure regulating reservoir; 17, bottom water pipeline; , backwashing water pipe; 19, reservoir base; 20, lakeside rock and soil foundation; 21, lakeside mountain; 22, dissolved oxygen sensor; 23, first micro-nano bubble oxygenation pool; 24, micro-nano bubble generator double Machine linkage motive group; 25, wind and solar hybrid power supply system; 26, camouflage soil 27; micro-nano bubble exhaust pipe; 28, auxiliary intercept pipe; 29, intercept pipe; 30, farmland; 31, third micro-nano bubble oxygenation pool; 32, insecticidal lamp; 33, artificial waterfall; Nanofiltration membrane; 35, pool; 36, second micro-nano bubble oxygenation tank; 37, shore; 38, monitoring maintenance vessel; 39, main water pipe; 40, overflow pipe.

detailed description

The invention will now be further described with reference to the accompanying drawings.

Embodiment 1: Referring to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, a lake bay heavy eutrophication control system includes a lakeside rock soil foundation 20 in a lake bay, a lakeside mountain body 21, a lakeside water body, and the lakeside rock soil. One side of the foundation 20 connected to the water body is provided with a bottom cover pool 1 with a top cover. The bottom of the bottom pool 1 is lower than the bottom surface of the lake, and is disposed on the pool base 2, and the bottom of the water body is provided with a fan type connected to the bottom pool 1. The water pipe 3, the fan-shaped inlet pipe 3 is in the shape of a fan, and is connected by a plurality of water pipes having water inlet holes on the upper surface thereof. The outer wall of the bottom pool 1 is provided with a water inlet, and the water inlet is connected with a main water pipe 39, a fan type The end of the inlet pipe 3 near the center of the circle is connected to the main water pipe 39 through a water pipe 4, and the bottom sump 1 is also provided with a lifting sluice 6 for controlling the opening and closing of the water inlet;

The lakeside geotechnical foundation 20 is provided with a pressure regulating reservoir 16 and a water pump 8, wherein the top of the pressure regulating reservoir 16 is provided with a cover plate, and the inlet pipe 7 of the water pump 8 extends from the top of the bottom pool 1 to the bottom of the bottom pool 1 The water outlet pipe 10 of the water pump 8 is divided into two paths, and is bent upwards to connect a micro-nano bubble generating device 11 on the cover plate, and extends from the cover plate to the upper portion of the pressure regulating reservoir 16, and the outlet pipe 10 is connected at the end. a horn-shaped nozzle 15 is bent downward, and a backwashing water pipe 18 is connected, and the backwashing water pipe 18 is horizontally disposed. One end extends into the lower part of the pressure regulating reservoir 16, and the other end extends into the top of the bottom pool 1, and is connected to a horn-shaped nozzle 15, and the bottom of the outer side of the pressure-regulating reservoir 16 is also provided with a bottom water supply pipe 17; the bottom pool 1 and The top of the pressure regulating reservoir 16 is provided with an air inlet 5, the bottom water supply pipe 17 is adjacent to the pressure regulating reservoir 16, the bottom water pool 1 is two water outlet pipes 10 near the water pump 8, and the backwash water supply pipe 18 is close to the bottom water pool. The electromagnetic valve 9 is provided; the top of the pressure regulating reservoir 16 is provided with a control room 13 for controlling the lifting sluice 6, the electromagnetic valve 9 and the water pump 8, and the solar energy supply device is also arranged in the control room 13, wherein the solar energy supply device has solar energy The panel 14 is located on top of the control room 13.

In this embodiment, the first micro-nano bubble oxygenation tank 23 is disposed on both sides of the pressure-regulating reservoir 16 , and the bottom water supply pipe 17 is connected to the water inlet of the first micro-nano bubble oxygenation tank 23 , first The micro-nano bubble oxygenation tank 23 is provided with a micro-nano bubble generator duplex unit 24 for oxygenating the interior thereof, and a wind and solar hybrid power supply system 25 for supplying the micro-nano bubble generator duplex unit 24, for the sake of beauty. The first micro-nano bubble oxygenation tank 23 and the micro-nano bubble generator dual-machine coupling group 24 are disposed in the camouflage soil construction 26, and the water outlet of the first micro-nano bubble oxygenation tank 23 is located under the lake level; the first micro-nano bubble charge The water outlet of the oxygen pool 23 is also connected with a micro-nano bubble exhaust pipe 27 which is arranged close to the lake shore 37 and is arranged along the edge of the lakeside rock soil foundation 20, and has several openings thereon. a flared nozzle 15 facing downward; an upper portion of the pressure regulating reservoir 16 is provided with an overflow pipe 40, one end of which is connected to the pressure regulating reservoir 16 and the other end is bent downward and vertically along the outer wall of the pressure regulating reservoir 16 Straight setting; the bottom pool 1 is elliptical , With the top 20 on the basis of geotechnical lake surface flush with the cover plate 12 surrounded by the fence, an oval pool bottom increased structural strength, to improve the ability to fight foreign object impact, and to reduce Resistance to less water flow; the lakeside geotechnical foundation 20 is provided with a reservoir base 19, and the pressure regulating reservoir 16 is fixedly disposed on the reservoir base 19; the main water pipe 39 is provided with a dissolved oxygen sensor 22.

First, we reactivate the oxygen-free water at the bottom of Lake Bay, close the downwardly bent outlet pipe 10 and the solenoid valve 9 on the backwashing water pipe 18, and open another solenoid valve 9, that is, to the pressure regulating reservoir. At the top of the solenoid valve 9 at the top, the lift sluice 6 is simultaneously opened, and the water at the bottom of the lake bay flows into the bottom pool 1 through the fan-type inlet pipe 3 under the pressure of the upper layer water, and then enters the pressure regulating reservoir 16 via the water pump 8, and finally The bottom water supply pipe 17 enters the first micro-nano bubble oxygenation tank 23 and flows into the bottom layer of the lake. Among them, the fan-type inlet pipe 3 enables the oxygen-free water to flow into the bottom pool 1 quickly and efficiently, and the dissolved water sensor 22 is provided in the main water pipe 39, which is convenient for monitoring the dissolved oxygen content of the place, and has a good effect on the water purification effect. Monitoring role.

During reoxygenation: because the bottom of the bottom pool 1 is lower than the bottom of the lake, and the fan inlet 3 is located at the bottom of the water body, the bottom of the bottom pool 1 is lower than the fan inlet 3, and the bottom of the lake is anaerobic due to the difference in height. The water can enter the bottom pool 1 through the fan-shaped inlet pipe 3, the water conduit 4 and the main water pipe 39 according to the upper water pressure of the lake water, the anaerobic water is in contact with the air in the bottom pool 1, and the air is subjected to the anaerobic water at the gas-liquid interface. The first "reoxygenation";

The water pumped by the water pump 8 communicates with the micro-nano bubble generating device 11 disposed on the cover plate of the pressure regulating reservoir 16 above the pipeline before flowing into the pressure regulating reservoir 16, at which time the water and the micro-nano bubble generating device 11 are generated. The micro-nano bubble is mixed in the lumen of the outlet pipe 10 for a second "reoxygenation"; finally, the trumpet-shaped nozzle 15 is sprayed into a "water mist", when the "water mist" containing the nano-bubble is stored from the pressure-regulating The upper part of the pool 16 flows into the lower part, and is mixed with the air in the pool for a third "reoxygenation". Finally, the lake water flowing out of the pressure regulating reservoir 16 contains The amount of oxygen has been greatly improved. At this time, the original anaerobic water has become oxygen-enriched water. After reoxygenation, the lake water enters the first micro-nano bubble oxygenation tank 23 located on both sides of the pressure-regulating reservoir 16 through the bottom water delivery pipe 17, and after strong reoxygenation by the micro-nano bubble generator duplex machine group 24, The horn nozzle 15 of the micro-nano bubble exhaust pipe 27 is pressurized and discharged. Since the water outlet of the first micro-nano bubble oxygenation tank 23 is located below the lake level, the re-oxygen water can be discharged into the lake bottom. The pressure regulating reservoir 16 is provided with a guardrail 12, and the platform inside the guardrail 12 can be used as a monitoring and sightseeing platform.

During the continuous pumping of the water pump 8, the electromagnetic valve 9 of the outlet of the bottom water supply pipe 17 at both ends of the outer side of the pressure regulating reservoir 16 is closed, and the pumped bottom water is filled into the pressure regulating reservoir 16 to obtain The highest water pressure. At this time, the solenoid valve 9 that opens the water outlet of the bottom water supply pipe 17 at both ends of the outer side of the pressure regulating reservoir 16 is controlled to control the displacement so that the amount of water discharged is equal to the amount of water continuously pumped, which makes the pressure regulating reservoir 16 always Maintain high water pressure. According to this method, and controlled by the computer, the different pressures of the output water of the pressure regulating reservoir 16 can be adjusted at will.

The technical solution can also flexibly and effectively implement reoxygenation according to different degrees of algae development in different time periods throughout the year.

In the period of low algae bloom and good water quality, the demand for reoxygenation of water is low. At this time, the micro-nano bubble generator duplex machine group 24 on the first micro-nano bubble oxygenation tank 23 can be turned off, and only the pressure-regulating storage is performed. The oxygen-enriched water obtained in the pool 16 through the "three re-oxygenation" is sent to the lake bay, which can promote the equilibrium of dissolved oxygen in the lake bay; when the water quality becomes better, as a precaution, the micro-caps on the cover plate of the pressure regulating reservoir 16 can be closed. The nanobubble generating device 11 can only be discharged into the "two times" reoxygenated water naturally generated by the bottom water of the lake in the process of entering the pressure regulating reservoir 16 Preventive needs;

When the algae outbreak in the lake bay, the water pressure of the pressure regulating reservoir 16 is raised to a maximum value, and the micro-nano bubble generating device on the cover plate of the micro-nano bubble generator dual-machine coupling group 24 and the pressure regulating reservoir 16 is activated. 11 A total of three equipments for strong oxygenation, the highest content of high-pressure oxygen-enriched water is injected into the bay water, that is, the following two aspects of the treatment process: on the one hand, the high-pressure oxygen-enriched water passes through the horn-shaped nozzle 15 Pressurized and diffused, it is easier to disperse the algae accumulated on the shore of Lake Bay, and dilute the concentration of nitrogen and phosphorus; on the other hand, continuously disperse and inject the most abundant dissolved oxygen, so that more heavy eutrophic substances in the bay can be obtained. Quickly decompose. The effect of governance is rapidly emerging.

As the algae is gradually controlled, one or two of the three nanobubbles can be shut down as needed according to the data provided by the dissolved oxygen sensor 22 and the monitoring and maintenance vessel 38, so as to dissolve and dissolve the dissolved oxygen in the bay. The demand for oxygen is balanced.

When the water re-oxygenation at the bottom of the lake is continuously extracted, the process of continuously returning the oxygen-rich water to the lake bay is continuously carried out, which establishes the long-term “self-reoxygenation cycle” of the lake and the water, and finally makes the “reoxygenation” of the whole lake bay. The effect is greater than the "oxygen consumption effect". The water ecology of Huwan can be gradually restored, and the self-purification ability of Huwan endogenous life can be formed. The severe eutrophication of Huwan can be completely cured.

The above method is not only very suitable for the prevention and control of heavy eutrophication in Huwan, but also widely applicable to bays, harbors, river banks, various types of reservoirs and ponds; breeding water surface and various landscapes such as parks, campuses and residential quarters. The prevention of eutrophication.

Of course, the present invention can also backwash the two pipes which are most easily blocked in the system, wherein the most easily blocked position is the water inlet hole of the fan-type inlet pipe 3, and the backwashing is lost. 18 water pipes. The specific method of backwashing is:

In the case of backwashing, it is necessary to remove the blockage in the fan-type inlet pipe 3, and to clear the blockage in the backflushing pipe below the pressure regulating reservoir 16, wherein the switch of the solenoid valve 9 and the lift sluice are required. Switch: When backwashing, the solenoid valve 9 is set to open the downwardly bent outlet pipe 10 and the solenoid valve 9 on the backwashing water pipe 18 to close the other solenoid valve 9.

Among them, the method of removing the blockage in the fan-type inlet pipe 3 by backwashing is:

The solenoid valve 9 is arranged to close the lift sluice 6, so that the water in the pressure regulating reservoir 16 fills the bottom pool 1 along the backwash line, so that the water storage depth is increased and the water body pressure is increased. At this time, the water inlet of the bottom pool 1 is opened by the lift sluice 6, and the blockage blocked in the fan-type inlet pipe 3 is automatically flushed with the high water pressure of the high water level to achieve the purpose of backwashing.

The method of backwashing to clear the blockage in the backflushing pipeline below the pressure regulating reservoir 16 is:

First, the air conditioner pressurizes the water stored in the reservoir 16 to remove the backwash resistance. Next, the electromagnetic valve 9 is set, the water pump 8 is turned on, and the water pressure generated by the water accumulated in the bottom pool 1 pumped by the water pump 8 is flushed to block the blockage in the backwashing water pipe 18 under the pressure regulating reservoir 16 to cause the blockage to be backwashed. The water pipe 18 is discharged to both ends. For example, only a section of the pressure-regulating reservoir that is relatively easy to block is backflushed. At this time, the solenoid valve 9 that enters the piping of the bottom pool 1 is not opened. The water is condensed by the water pressure of the pump 8 in a concentrated manner. The above operations are automatically controlled by the computer in the control room 13.

Of course, the way of backwashing is flexible and can be adjusted according to the actual situation.

Embodiment 2: Referring to FIG. 5 and FIG. 6, the lakeside mountain body 21 is provided with intercepting mountain water. a source intercepting pipe 29, the water outlet of the intercepting pipe 29 is connected to a water pool 35 through a nanofiltration membrane 34 water purifying device, and a second micro-nano bubble oxygenating tank 36 is connected to the bottom of the water tank 35, the second micro-nano The side of the bubble oxygenation tank 36 is provided with a micro-nano bubble generator duplex unit 24 for oxygenating the interior thereof, and a wind and solar hybrid power supply system 25 for supplying the micro-nano bubble generator duplex unit 24, the second micro-nano The water outlet of the bubble oxygenation tank 36 extends into the horizontal plane of the lake; wherein the water outlet of the second micro-nano bubble oxygenation tank 36 is also connected with a micro-nano bubble exhaust pipe 27, and the micro-nano bubble exhaust pipe 27 Near the lake shore 37, the coastal side 37 is horizontally disposed, and is provided with a plurality of flared nozzles 15 with openings facing downward. The rest is the same as in the first embodiment.

On the basis of the first embodiment, the second embodiment increases the setting of the water, clean water and centralized discharge facilities of the lakeside mountain body 21. At this time, the water source in the mountain can be intercepted and collected, and the micro-nano bubble generator is respectively used. After the two-machine linkage group 24" and the "nanofiltration membrane 34" are efficiently processed, on the one hand, the treated mountain water source can be used for irrigation of farmland 30, and on the other hand, the lake bay mountain body can be concentrated after oxygenation. The oxygen-enriched water source is once again sent to the lake to purify the water body, accelerate the flow of the lake water, and increase the water exchange speed of the lake. At the same time, it naturally forms a barrier to reduce the intrusion of sewage upstream. In the specific setting, we can use the difference of the mountain body, and set the auxiliary intercepting pipe 28 under the intercepting pipe 29, and set the artificial waterfall 33 for aeration to increase the oxygen content of the water body, and the water outlet of the auxiliary intercepting pipe 28 is set. Between the pool 35 and the second micro-nano bubble oxygenation tank 36; the farmland 30 is located between the auxiliary intercepting pipe 28 and the intercepting pipe 29, and the water source passes through the third micro-nano bubble oxygenation tank 31 and the micro-nano bubble generator double-machine coupling group 24 Enter the farmland 30 after oxygenation.

In order to prevent the harm of pesticides to the water source of Huwan. Solar energy is also set on the farmland 30 side. Electrical insecticidal lamps 32 and other facilities. In addition, the monitoring and maintenance vessel 38, which can be frequently operated in the lake bay, can receive the data of the dissolved oxygen sensor 22 of the lake bay by using the upper computer on the ship to monitor the water body in the lake bay and maintain the related facilities.

All the wind and solar hybrid power sources and solar panels in Lake Bay use the abundant scenery resources of Huwan to form the “Huwan Clean Energy System”. The mutual connection and complement each other to jointly protect the power supply of the lake area, and further protect the good ecological environment of Huwan.

The above various technical solutions focus on the two main factors of heavy eutrophication of the lake water at the bottom of the lake, dissolved oxygen deficiency and the more difficult to replace the lake water. Providing a simple, practical, energy-saving, environmentally-friendly, low-cost construction technical solution, effectively improving the fluidity of the Bayan water body and the self-purification efficiency of re-oxygenation. The overall self-purification ability of Huwan has been improved as a whole.

It can also be seen from Fig. 6 that due to the influence of the wind direction, the inner bend of the lake bay is the easiest to accumulate algae, resulting in the area being covered by a large amount of algae, and the lower layer of water is anaerobic. This is the fundamental problem to be solved by the present invention.

China's large-scale “water control lake control algae” is often used in the process of actually controlling lake eutrophication. For example, the state carried out the “Liangjiang Taitai” project in Taihu Lake, which played a great role in accelerating the exchange and renewal of water bodies, improving water quality, and taking into account the needs of water supply and shipping. But this is still a cure. Endogenous pollution of long-term lake eutrophication is still difficult to eliminate. This technical solution can mainly improve the self-purity endogenous force of Huzhou Bay's heavily eutrophication area. The purpose is to eliminate the endogenous pollution that has already occurred, to restore the ecological diversity of the lake, and to achieve the same goal of treating both the symptoms and the root causes. It also compensates for some of the shortcomings of the large-scale "control river water control lake algae control", and has a strong promotion value. The technical scheme and the large-scale "control river water agent lake control algae" treatment Combined, it is expected to achieve better governance results.

The above is a detailed introduction of the Huwan severe eutrophication management system provided by the present invention. The structure and embodiment of the present invention are described in the following by using specific examples. The description of the above embodiments is only for helping to understand this. The structure of the invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scopes. In summary, the contents of this specification should not be understood. To limit the invention. Variations and modifications of the invention are possible without departing from the spirit and scope of the appended claims.

Claims

A heavy eutrophication control system of the lake bay, including a lakeside geotechnical foundation, a lakeside mountain body and a lakeside water body in the lake bay, wherein the side of the lakeside rock and soil foundation connected to the water body is provided with a covered bottom pool The bottom of the bottom pool is lower than the bottom surface of the lake, and the bottom of the water body is provided with a fan-shaped inlet pipe connected to the bottom pool. The fan-shaped inlet pipe is fan-shaped and is connected by a plurality of water pipes with water inlet holes on the upper surface, and the bottom layer is formed. The outer wall of the pool is provided with a water inlet, and the water inlet is connected with a main water pipe. The fan-shaped inlet pipe is connected to the main water pipe through a water pipe at one end of the round water pipe, and the bottom water pool is further provided with a lifting sluice for controlling the opening and closing of the water inlet;

The lakeside rock and soil foundation is provided with a pressure regulating reservoir and a water pump. The top of the pressure regulating reservoir is provided with a cover plate, and the water inlet pipe of the water pump extends from the top of the bottom pool to the bottom of the bottom pool, and the water outlet pipe of the water pump is divided into two paths. One way is bent upwards, connected to a micro-nano bubble generating device located on the cover plate, and extends from the cover plate to the upper portion of the pressure regulating reservoir, the outlet pipe is connected with a horn-shaped nozzle at the end, and the other road is bent downward and connected. a backwashing water pipe, the backwashing water pipe is horizontally arranged, one end extends into the lower part of the pressure regulating reservoir, the other end extends into the top of the bottom pool, and is connected with a horn-shaped nozzle, and the two ends of the outer side of the pressure regulating water tank are further provided There is a bottom water pipe;

The bottom of the bottom pool and the pressure regulating reservoir are provided with an air inlet, and the bottom water outlet pipe is adjacent to the pressure regulating reservoir, the two outlet pipes of the bottom pool are close to the water pump, and the backwashing water pipe is close to the bottom pool, and electromagnetic valves are provided;

The top of the pressure regulating reservoir is provided with a control room for controlling the operation of the lift sluice, solenoid valve and water pump. The control room is also provided with a solar power supply device, wherein the solar power supply device has solar energy. The panel is located at the top of the control room.
The lake bay heavy eutrophication treatment system according to claim 1, wherein: the first micro-nano bubble oxygenation tank is disposed on both sides of the pressure-regulating reservoir, and the bottom water supply pipe and the first The water inlet of the micro-nano bubble oxygenation tank is connected, and the first micro-nano bubble oxygenation tank is provided with a micro-nano bubble generator double-machine linkage group for oxygenating the interior thereof, and a power supply mechanism for the micro-nano bubble generator dual-machine linkage group. In the wind-solar complementary power supply system, the outlet of the first micro-nano bubble oxygenation tank is located below the lake level.
The lake bay heavy eutrophication treatment system according to claim 2, wherein the water outlet of the first micro-nano bubble oxygenation tank is further connected with a micro-nano bubble exhaust pipe, and the micro-nano bubble exhaust The tube is close to the shore of the lake and is arranged along the edge of the lakeside rock-soil foundation, and there are several horn-shaped nozzles with openings facing downwards.
The lake bay heavy eutrophication control system according to claim 1, wherein the lakeside mountain body is provided with a intercepting pipe for intercepting the mountain water source, and the water outlet of the intercepting pipe passes through a nanofiltration membrane. The water device is connected to a water pool, and the bottom of the pool is connected to the second micro-nano bubble oxygenation tank, and the second micro-nano bubble oxygenation tank is provided with a micro-nano bubble generator double-machine linkage group for oxygenating the interior thereof, and The micro-nano bubble generator dual-machine linkage unit supplies the wind-solar complementary power supply system, and the water outlet of the second micro-nano bubble oxygenation tank extends into the lake level.
The lake bay heavy eutrophication treatment system according to claim 4, wherein the water outlet of the second micro-nano bubble oxygenation tank is also connected with a micro-nano bubble exhaust pipe, the micro-nano bubble The exhaust pipe is close to the shore of the lake, and the coastal side is horizontally arranged, and there are several horn-shaped nozzles with openings facing downward.
The lake bay heavy eutrophication control system according to claim 1, wherein the upper portion of the pressure regulating reservoir is provided with an overflow pipe, and one end of the overflow pipe is connected to the pressure regulating reservoir, and the other end is bent downward. Fold and set vertically along the outer wall of the pressure regulating reservoir.
The lake bay heavy eutrophication control system according to claim 1, wherein the bottom pool is elliptical, the top is flush with the surface of the lakeside rock and soil, and the guardrail is arranged around the cover.
The lake bay heavy eutrophication control system according to claim 1, characterized in that: the lakeside rock soil is provided with a cistern base, and the pressure regulating reservoir is fixedly disposed on the base of the cistern.
The lake bay heavy eutrophication control system according to claim 1, wherein the main water pipe is provided with a dissolved oxygen sensor.