CN104163544A - Ecological pond effluent deep treatment method and device - Google Patents

Abstract

An ecological pond effluent advanced treatment device: a roller grille machine, the effluent of which is sprayed into the bottom of the ecological pond through the shrinkage inlet pipe; The effluent treated by the air recoil screen filter flows into the nano-aeration ablation device by itself. There is a mud discharge port at the bottom of the nano-aeration ablation device. The nano-aeration ablation device is located above the mud discharge port. The nano-aeration disk is connected to the nano-O ₃ aerator; the nano-aeration ablation device is equipped with a temperature controller, which is connected to and controls the temperature-sensing head and the heating belt arranged inside the nano-aeration ablation device. The invention also discloses a sewage treatment method using the device.

Description

A method and device for advanced treatment of ecological pond effluent

technical field

The invention relates to a combined process for advanced treatment of effluent from an ecological pond, in particular to a device for advanced treatment of effluent from an ecological pond.

The present invention also relates to a method for advanced treatment of the effluent of the ecological pond by using the above-mentioned device.

Background technique

The ecological pond is a kind of stable pond that uses aquatic plants and aquatic animals existing in natural water to treat sewage. The stabilization pond treatment system has been widely used in many countries, and our country has carried out research on a national scale since the 1980s. Although compared with the traditional activated sludge method, A2/O method, oxidation ditch method, AB method, and ABC, SBR method, biofilm method, high-pressure membrane method that have appeared in recent years, it has the disadvantage of occupying a large area, but its The advantages of low investment, low operating costs, and simple operation and management are unmatched by other processing methods. At present, the treatment process of ecological ponds is developing in the direction of standardization, systematization, resource utilization, ecologicalization and aestheticization. Screen and cultivate high-efficiency aquatic purification plants (build aquatic plant ponds such as water hyacinth ponds, reed ponds, and lotus root ponds), combine the comprehensive functions of multiple biological treatment units such as aeration, aquatic plants, and aquaculture, and build biochemically integrated water The complex ecological system of animals and plants will become the development direction of ecological pond treatment technology. Sewage treatment in many small and medium-sized cities has not received due attention for a long time. Some of them are directly discharged into natural water bodies after simple treatment, and most of them are in a state of letting go. According to statistics, more than 95% of domestic sewage is directly discharged. To the ground or in rivers and lakes, the environment continues to deteriorate. As a high-efficiency and low-energy sewage treatment scheme, the stable pond has broad application prospects in the areas with rich land resources in small and medium-sized cities in my country.

Oxidation ponds have been widely used in the United States due to their low cost, convenient operation and maintenance, and their superiority in municipal and small wastewater treatment systems owned by private development companies. In 1976, there were more than 800 such ponds in South Carolina alone. The traditional ecological pond is directly used as a secondary treatment unit to treat sewage, and the treated sewage is directly discharged into the natural water body, which is likely to cause the deterioration of the natural water body.

Contents of the invention

The purpose of the present invention is to provide an ecological pond effluent advanced treatment device.

Another object of the present invention is to provide a method for advanced treatment of ecological pond effluent by using the above-mentioned device.

In order to achieve the above object, the ecological pond effluent advanced treatment device provided by the present invention has a structure of:

A roller screen machine, which settles and stratifies suspensions of different densities, and the outlet water is sprayed into the bottom of the ecological pond through the shrinkage inlet pipe;

The ecological pond is filled with carbon fiber fillers that degrade pollutants;

A barrier to intercept carbon fiber packing is set above the flowing packing;

The top of the ecological pond is equipped with a solar dynamic water algae removal machine that floats on the water surface by means of a floating carrier. The upper end of the solar dynamic water algae removal machine is equipped with a solar panel, and the lower end is equipped with a propeller powered by solar energy;

The solar dynamic water algae removal machine is connected to the ecological floating bed through ropes. The ecological floating bed floats on the water surface by buoyancy. The upper end is provided with holes for planting plants. There are heavy objects placed under the ecological floating bed, and fillers are hung on the heavy objects;

The effluent from the ecological pond enters the disturbed flow nano-aeration recoil screen filter tank, and the inside of the disturbed flow nano-aeration recoil screen filter tank is divided into upper and lower parts by a porous plate;

A nano _- aerator head connected to a nano-O aerator is arranged above the porous plate, a layer of composite filler is laid on the nano-aerator head, a mixer is arranged above the composite filler, and the impeller of the mixer is placed above the composite filler;

The side above the composite filler is provided with an aeration head connected to a nano- _O2 aerator, and the aeration pipe is provided with a plurality of fine aeration holes, the aeration holes are vertically upward, and a reflux tank is provided above the aeration pipe;

An ultrasonic generator is installed above the composite filler;

Below the porous plate is the water storage tank, the inner wall of which is evenly loaded with a layer of non-metallic doped photocatalyst, the bottom is equipped with an ultraviolet sterilizing lamp, and a nano aeration head is installed in the gap between the ultraviolet sterilizing lamp, and the remaining space inside the water storage tank is filled with The semi-conductor-loaded filler is equipped with an aeration head connected to a nano- _O3 aerator inside the semiconductor-loaded filler;

The effluent of the disturbed flow nano-aeration recoil screen filter flows into the nano-aeration and ablation device by itself. The nano-aeration disk is connected to the nano-O ₃ aerator; the nano-aeration ablation device is equipped with a temperature controller, which is connected to and controls the temperature-sensing head and the heating belt placed inside the nano-aeration ablation device.

Said ecological pond effluent advanced treatment device, wherein, the rotating speed of the roller grill machine is 30-5000r/min.

In the device for advanced treatment of effluent in ecological ponds, the railings of the partitions are wide at the top and narrow at the bottom.

In the advanced treatment device for the effluent of the ecological pond, the porous plate is composed of two layers of porous plates mixed with a layer of stainless steel gauze.

In the advanced treatment device for the effluent of the ecological pond, the ecological floating bed is made of high-strength polystyrene floating bed.

The device for advanced treatment of effluent in the ecological pond, wherein the ecological floating bed adopts the method of cultivating aquatic plants without soil on the water surface, and uses these plants to absorb nutrients produced by animals to treat eutrophic water bodies.

Said ecological pond effluent advanced treatment device, wherein the filler suspended under the ecological floating bed is nano-scale carbon fiber filler or combined filler, which is set up and down, and the carbon fiber setting area is not less than 20% of the water area.

The ecological pond effluent advanced treatment device, wherein the composite filler inside the flow-disturbing nano-aeration recoil screen filter adopts natural zeolite molecular sieve with a particle size of 0.5-1.0mm and manganese sand, and the filler ratio is 5:1.

The method provided by the present invention utilizes the above-mentioned ecological pond effluent advanced treatment device to carry out sewage treatment:

Through a roller grid machine, the liquid-solid or liquid-liquid separation is realized by using the principle of rapid sedimentation and stratification of components with different suspension densities in the centrifugal force field;

The outlet water of the roller grill machine is pressurized by the booster pump, and under the action of the shrinkage inlet pipe, it is sprayed into the bottom of the ecological pond under high pressure, so that the carbon fiber flow filler filled in the ecological pond is continuously rolled and mixed under the action of the water flow, and the The pollutants are degraded under the condition of oxygen; the water treated by the ecological pond pours into the pond body above the ecological pond through the barrier, and the carbon fiber filler is intercepted by the barrier;

The solar water dynamic algae removal machine in the ecological pond uses solar energy as the driving force to drive the blades to form water flow; when running from bottom to top, the dynamic water increases oxygen, and when running from top to bottom, it breaks and decomposes the massive algae. Let the water body generate upper and lower layer convection, so that the water body can reach the high-efficiency circulation treatment and then enter the disturbing nano-aeration recoil screen filter;

The nano-aeration head in the turbulent nano-aeration recoil screen filter works intermittently to disperse the dense dirt layer on the composite filler and semiconductor-loaded filler, and the pollutant layer overflows to the return tank under the buoyancy of the aeration tube , so that pollutants can be concentratedly removed and mixed with influent water for retreatment, so as to prolong the service life and backwashing cycle of the disturbed flow nano aeration backwashing screen filter;

The aeration head of the semiconductor-loaded filler in the disturbed flow nano-aeration recoil screen filter adopts O ₃ aeration. Because the nano-bubbles have characteristics such as a large number, specific surface area, and slow rising speed, and the bubbles stay in the water for a long time, Increase the gas-liquid contact area and contact time, which is conducive to the dissolution of ozone in water, and overcomes the shortcomings of ozone insoluble in water; there is a large pressure inside the microbubbles and the interface disappears when the nanobubbles break, and the chemical energy generated by the drastic changes in the surrounding environment Promote the production of more hydroxyl radicals OH, enhance the ability of O ₃ to oxidize and decompose organic matter; and nano-scale O ₃ bubbles coexist with ultraviolet sterilization lamps and semiconductor-loaded fillers in the water storage tank to improve the advanced oxidation effect and effectively increase OH Production rate: nano-titanium dioxide crystals in the device act as photocatalysts to excite highly oxidative free negative ions under the irradiation of ultraviolet lamps. At the same time, the energy excited during the process of nano-aeration and ultrasonic generation can also occur and strengthen the production of free negative ions to achieve light. Catalytic effect; while free negative ions and their vacancies after getting rid of the covalent bond, and the charge on the surface of nanobubbles produce micro-electrolysis effect at the same time. The effluent of the disturbed flow nano-aeration recoil screen filter returns to the ecological pond at the same time to adjust the water quality and stimulate the secretion of secondary substances in the process of plant growth.

The effluent of the disturbed flow nano-aeration recoil screen filter flows back to the ecological pond at the same time to adjust the water quality and stimulate the secretion of secondary substances during the growth of plants;

The effluent of the disturbed flow nano-aeration recoil screen filter flows into the nano-aeration and ablation device for nano-aeration treatment, which decomposes and ablates the refractory organic compounds in the sewage, and inactivates pathogenic bacteria and microorganisms.

Said method, wherein the temperature of the nano-aeration ablation device is 25-35°C.

The invention uses a centrifuge to reduce the water intake load of the ecological pond, prevents the excessive growth of algae due to excess organic nutrients, and at the same time uses a solar dynamic water algae removal machine to aerate and remove algae, increase the dissolved oxygen concentration in the ecological pond, remove algae in the pond, and use an ecological floating bed to enhance Ecosystem stability, and design a disruptive nano-aeration recoil screen filter for advanced treatment of ecological pond effluent, improve the transparency of effluent while performing advanced oxidation, oxidative degradation of residual pollutants, and finally adopt nano-aeration ablation device depth For final processing. The present invention utilizes solar energy as electric power compensation, utilizes hydrodynamic dynamics to achieve good hydrodynamic effects, and is easy to place on the water surface for construction and maintenance. Currently, ecological methods are used to treat pollutants, and multi-functional screening is used to reduce sewage turbidity, effectively reducing residual pollutants in sewage, difficult to Degrade trace substances, improve sewage water quality, and the effluent can be reused as reclaimed water or directly discharged.

Description of drawings

Fig. 1 is a schematic structural view of the ecological pond effluent advanced treatment device of the present invention.

Explanation of main component symbols in the attached drawings:

1 Roller grid machine; 2 Solar dynamic water algae removal machine; 3 Solar panel; 4 Propeller; 5 Ecological floating bed; 6 Ecological pond; 7 Filling; 8 Plants; Air recoil sieve filter; 12 mixer; 13 impeller; 14 nanometer aeration and ablation device; 15 nanometer aerator; 16 mud discharge port; 17 nanometer aeration disc; 18 ultraviolet sterilization lamp; Gas head; 21 semiconductor load filler; 22 water storage tank; 23 hydraulic pump; 24 carbon fiber flow filler; slot; 31 composite filler.

Detailed ways

A kind of ecological pond effluent advanced treatment combined process for sewage treatment provided by the present invention, its main structure is as shown in Figure 1, including:

A roller grid machine 1, which realizes liquid-solid (or liquid-liquid) separation by utilizing the principle that components with different densities of suspensions (or emulsions) rapidly settle and stratify in a centrifugal force field. The centrifuge outlet water is pressurized by the booster pump 27, and is sprayed into the ecological pond 6 at high pressure under the effect of the shrinkage inlet pipe 26. The rotating speed of the roller grill machine can be controlled at 30-5000r/min.

In the ecological pond 6, the influent water is sprayed into the bottom of the ecological pond 6 under the action of pressure, and the carbon fiber flow filler 24 is continuously rolled and mixed under the action of the water flow. The fence 25 pours into the pond body above the ecological pond 6, and each railing of the fence 25 is wide at the top and narrow at the bottom, and the flowing filler 24 is effectively intercepted; It is connected with the pond body of the ecological pond 6; in order to prevent the imbalance of the solar dynamic water algae remover, the solar dynamic water algae remover can be fixed on the water surface by ropes. The upper end of the solar powered water algae removal machine 2 is provided with a solar panel 3, and the lower end is provided with a propeller 4, and the propeller is driven by solar energy to form a water flow. When it runs from bottom to top, it moves water to increase oxygen, and when it runs from top to bottom, it breaks and decomposes the massive algae, and continuously creates convection between the upper and lower layers of the water body, so that the water body can achieve efficient circulation. The solar dynamic water algae removal machine 2 is connected to the ecological floating bed 5 through ropes. The ecological floating bed is made of high-strength polystyrene floating bed with strong bearing capacity and good corrosion resistance. The ecological floating bed 5 floats on the water surface by buoyancy, and the upper end is set with holes for soilless cultivation on the water surface. Plant 8 in the form of aquatic plants, use these plants to absorb nutrients produced by animals, and treat eutrophic water bodies.

A certain amount of filler 7 is suspended under the ecological floating bed 5 by weights 10. The filler is nano-scale carbon fiber filler or composite filler, which is set up and down; the area where the carbon fiber is set is not less than 20% of the water area, and the carbon fiber The biofilm formed on the surface of the fiber filler forms three reaction zones, aerobic, facultative anaerobic and anaerobic, from the outside to the inside. The ecological floating bed 5 is provided with an aerator 9, which is used as aeration compensation in the case of insufficient solar energy.

The effluent from the ecological pond 6 enters the disturbed flow nano-aeration recoil screen filter tank 11 through the hydraulic pump 23 .

The flow-disturbing nano-aeration recoil screen filter tank 11 is divided into upper and lower parts by two layers of perforated plates 19 mixed with a layer of stainless steel gauze. A nano-aeration head 20 is set above the porous plate 19, and a layer of composite filler 31 is laid on the nano-aeration head 20. The composite filler is natural zeolite molecular sieve and manganese sand with a particle size of 0.5-1.0 mm, and the filler ratio is 5:1. , to remove heavy metals. An agitator 12 is arranged above the composite filler 31 , and the impeller 13 of the agitator is placed above the composite filler 31 . One side above the composite filler 31 is provided with an aeration pipe 29, the aeration pipe 29 is provided with a plurality of micropore aeration holes, the aeration holes are vertically upward, and a return tank 30 is arranged above the aeration pipe 29; the top of the composite filler 31 Ultrasonic generator 28 is also installed. Below the perforated plate 19 is a water storage tank 22, and its inner wall evenly loads a layer of non-metallic doped photocatalyst (such as nanometer TiO ₂ powder), and an ultraviolet sterilization lamp 18 is installed at the bottom, and is arranged between the gaps of the ultraviolet sterilization lamp 18. Nano-aeration head, the remaining space inside the water storage tank 22 is filled with semiconductor-loaded fillers 21 (such as nano- _TiO2 powder loaded on three-dimensional network polypropylene fillers), the invention fixes the fillers on the carrier, which solves the need for conventional photocatalysts to disperse The disadvantages of the synergistic use of the catalyst reduce the loss of the catalyst and avoid the separation step of the catalyst after the reaction.

When the flow-disturbing nano-aeration recoil screen filter 11 is working, the nano-aeration head does not work continuously, and the air bulges upward from the porous plate and is divided into small air bubbles, which intermittently disperse the dense dirt layer on the composite packing 31. Pollutants The layer is broken into flakes and floats, under the buoyancy of the nano-aeration head 20, it overflows to the return tank 30, so that the pollutants trapped by the composite filler 31 are discharged in a concentrated manner, and mixed with the influent water for retreatment, so as to prolong the turbulent nano-aeration. The service life and the backwashing cycle of the air backwashing screen filter 11, for the situation that the turbidity of the influent is low, even the need for backwashing can be continuously operated to purify the sewage.

The nano-aeration head in the turbulent nano-aeration recoil screen filter tank 11 adopts _O3 aeration, because the nano-bubbles have characteristics such as huge number, specific surface area, and slow rising speed, and at the same time, the bubbles stay in the water for a long time, increasing The gas-liquid contact area and contact time are improved, which is conducive to the dissolution of ozone in water and overcomes the shortcomings of ozone insoluble in water; there is a large pressure inside the microbubble and the interface disappears when the nanobubble breaks, and the chemical energy generated by the drastic change in the surrounding environment promotes Generate more hydroxyl radicals OH, enhance the ability of O ₃ to oxidize and decompose organic matter; and nano-level O ₃ bubbles coexist with ultraviolet sterilization lamps and semiconductor-loaded fillers in the water storage tank to improve the advanced oxidation effect and effectively increase OH generation rate, the average irradiation dose of ultraviolet germicidal lamps is above 300J/m ² .

The effluent from the disturbed flow nano-aeration recoil screen filter 11 flows into the nano-aeration ablation device 14 by itself. The bottom of the nano-aeration and ablation device 14 is provided with a mud outlet 16, and the inside of the nano-aeration and ablation device 14 is located above the mud outlet 16. A nano-aeration disc 17 is provided. The nano-aeration disc 17 is connected to the nano-aerator 15, and the air intake is O ₃ . The bubbles generated by the nano-aeration disc 17 are evenly mixed into the sewage, and a large amount of hydroxyl radicals are obtained through nano-aeration, which plays a strong oxidation role. Under the condition of high-temperature nano-aeration, the sewage is treated with nano-aeration, and the refractory organic compounds in the sewage are decomposed. , ablation, pathogenic bacteria and microorganisms are inactivated, while removing organic matter and reducing COD, the transparency and chroma of sewage are also improved. A temperature controller is installed in the nano-aeration ablation device, which is connected to and controls the temperature-sensing head and the heating belt installed inside the reactor, and the temperature is controlled at 25-35°C by the temperature control device.

Preparation of the non-metallic doped photocatalyst (carbon-doped nano TiO ₂ powder) of the present invention: the carbon-doped nano TiO ₂ is prepared by a two-step process of a uniform precipitation method and a hydrothermal method. With titanium sulfate and urea as the precursor, glucose as the carbon source, the specific preparation process is as follows: take 6.48g27 titanium sulfate and 3.24g54 urea (the molar ratio of titanium sulfate and urea is 1:2) dissolved in deionized water, and then add an appropriate amount of Glucose 0.6 was stirred evenly, and 1:2:0.023 was reacted at 90°C for 2 hours. After the reaction is finished, the reactant is taken out and dried, repeatedly washed with water until neutral, dried again, and ground with a ball mill to obtain carbon-doped nano TiO ₂ powder.

The method of loading nano-TiO ₂ powder on the filler: using a three-dimensional network structure filler made of polypropylene, mixing nano-TiO ₂ powder with deionized water (the mass ratio of powder to water is 1:20), and ultrasonically Ultrasound to form an emulsion, immerse the clean three-dimensional network structure filler into the titanate coupling agent mixed with ethanol 1:1, stir slowly for a period of time, then take out the filler and put it into the TiO ₂ emulsion to continue stirring for a period of time After taking it out, put it in an oven to dry (below 85°C) for 2 hours, and then the polypropylene suspension filler loaded with nano-TiO ₂ is obtained. Its appearance is light yellow and the film layer is relatively uniform.

During normal sieving, turn on the agitator with a rotation speed of 100r/min. During the sieving process, due to the accumulation of pollutants, the water flow cannot pass through the filler smoothly. During the process of increasing the liquid level, open the aeration pipe 29 and intermittently open the nano-aerator 15 under the porous plate, the nano-aerator in the water storage tank 22 does not work continuously, the air bulges upward from the porous plate, and is divided into small bubbles, synergistically The rotation of the mixer washes away the dense dirt layer on the sieve filler, and the pollutant layer is broken into flakes and floated. Under the synergistic effect of the buoyancy of the aeration tube and the thrust to the right of the incoming water impact, a pulsator effect is produced, which vigorously cleans the flaky and dense pollutants on the surface of the packing, and overflows to the return tank, so that the pollutants trapped by the packing are discharged out of the device in a concentrated manner. The influent water is mixed and reprocessed, and the sewage can also continue to permeate through the gaps of the molecular sieve. The screening device can prolong the service life and the backwashing cycle. For the case of low influent turbidity, backwashing can even be unnecessary, so that the device can continue to operate to purify sewage.

The second-stage backwash is an air pulse backwash. Due to the high turbidity of the sewage, a large amount of pollutants accumulate on the surface of the filler. The effect of continuous screening cannot be achieved only by the first-stage backwash step. At this moment, stop the water inlet and outlet, close the hydraulic pump 23, start the two nanometer aerator 15, and import the water outlet in the water outlet tank in the water storage tank, and stop when the liquid level in the water storage tank is close to the perforated plate. Under the action of the return water pressure, all the air in the water storage tank is quickly squeezed and rises along the fine holes on the partial pressure chamber, and the entire filter packing layer is under the action of the rising air, the rotating and disturbing wave wheel and the nano aeration head under the packing. Under the action of the impact force, the pollutants in the packing gap are broken and floated, and under the synergistic effect of the buoyancy of the aeration tube and the rightward thrust of the water impact baffle, they overflow to the return tank and mix with the initial water, and wait for the water surface drop rapidly. After the filtration rate is stabilized again, close the two-nanometer aerator 15, open the hydraulic pump 23 and restore the water in and out, and continue the sieve treatment.

The three-stage backwash is an aeration turbulent backwash. At this time, the two-stage backwash mentioned above is not enough to solve the problem of covering and blocking the filler by pollutants, and a large amount of sewage accumulates and cannot be filtered. Now stop entering and leaving water, close hydraulic pump 23, start ultrasonic generator 28 and two nanometer aerators 15, and a large amount of water is imported in the water storage tank in the water outlet pool, and stop when the liquid level in the water storage tank is close to the perforated plate. ⑴The air inside the water storage tank rises and stirs along the pores of the porous plate, the nano-aeration head at the bottom of the filler starts to aerate, and the turbine above the filler keeps rotating; In the state of turbulent flow and irregular high-speed movement, the fillers rub against each other under the impact of the vortex of the water flow and the shear force of the air bubbles, and the organic pollutants attached to the fillers can be removed to obtain relatively pure fillers; Ultrasonic waves are generated in the liquid medium, and cavitation effects are generated on the surface of the sieve packing. The shock wave formed when the cavitation bubbles burst during the closing process will generate thousands of air pressure impact pressures around it, acting on the surface of the packing to destroy the dirt. The viscosity between the materials, and make them quickly dispersed in the backwash solution, so as to achieve the effect of cleaning the surface of the filler. ⑷After the air is exhausted, the effluent from the effluent tank continues to be introduced, and the effluent rich in hydroxyl radicals washes the surface and micropores of the filler particles in the turbulent state, strips off the pollutants, and the filler is regenerated. (5) The pollutants float upwards to the water surface continuously under the impact force of the water flow and the air flotation of the right aeration tube, and flow out from the left inlet weir and the right return trough to mix with the initial inlet water. After three-stage backwashing, the internal pollutants are cleaned and emptied.

Conventional sand filtration usually improves the sand filtration process by means of compacting packing, increasing water pressure, and attaching grids on the sand. Usually, the sand layer is not disturbed, and the water flows through the small gaps in the sand, while the pollutants stay on the surface of the sand layer. On the other hand, the present invention utilizes the rotation of the mixer to disturb the surface layer of the filler to prevent the accumulation of pollutants from forming resistance to the smooth passage of water flow. At the same time, the filler is backwashed by using the nano-aeration water flow, the impact force and the shear force of the air bubbles.

Claims (10)

1. An ecological pond effluent advanced treatment device, its structure is: A roller screen machine, which settles and stratifies suspensions of different densities, and the outlet water is sprayed into the bottom of the ecological pond through the shrinkage inlet pipe; The ecological pond is filled with carbon fiber flow fillers that degrade pollutants; There is a barrier to intercept the flow packing of carbon fiber above the flow packing; The top of the ecological pond is equipped with a solar dynamic water algae removal machine that floats on the water surface by means of a floating carrier. The upper end of the solar dynamic water algae removal machine is equipped with a solar panel, and the lower end is equipped with a propeller powered by solar energy; The solar dynamic water algae removal machine is connected to the ecological floating bed through ropes. The ecological floating bed floats on the water surface by buoyancy. The upper end is provided with holes for planting plants. There are heavy objects placed under the ecological floating bed, and fillers are hung on the heavy objects; The effluent from the ecological pond enters the disturbed flow nano-aeration recoil screen filter tank, and the inside of the disturbed flow nano-aeration recoil screen filter tank is divided into upper and lower parts by a porous plate; A nano _- aerator head connected to a nano-O aerator is arranged above the porous plate, a layer of composite filler is laid on the nano-aerator head, a mixer is arranged above the composite filler, and the impeller of the mixer is placed above the composite filler; The side above the composite filler is provided with an aeration head connected to the aerator, and the aeration pipe is provided with a plurality of fine aeration holes, and the aeration holes are vertically upward, and a reflux tank is provided above the aeration pipe; An ultrasonic generator is installed above the composite filler; Below the porous plate is the water storage tank, the inner wall of which is evenly loaded with a layer of non-metallic doped photocatalyst, the bottom is equipped with an ultraviolet sterilizing lamp, and a nano aeration head is installed in the gap between the ultraviolet sterilizing lamp, and the remaining space inside the water storage tank is filled with The semi-conductor-loaded filler is equipped with an aeration head connected to a nano- _O3 aerator inside the semiconductor-loaded filler; The effluent of the disturbed flow nano-aeration recoil screen filter flows into the nano-aeration and ablation device by itself. The nano-aeration disk is connected to the nano-O ₃ aerator; the nano-aeration and ablation device is equipped with a temperature controller, which is connected to and controls the temperature-sensing head and the heating belt placed inside the nano-aeration and ablation device. 2. The device for advanced treatment of effluent in ecological ponds according to claim 1, wherein the rotating speed of the roller grill machine is 30-5000r/min. 3. The device for advanced treatment of effluent in ecological ponds according to claim 1, wherein the railings of the partitions are wide at the top and narrow at the bottom. 4. The advanced treatment device for ecological pond effluent according to claim 1, wherein the perforated plate is composed of two layers of perforated plates mixed with a layer of stainless steel gauze. 5. The ecological pond effluent advanced treatment device according to claim 1, wherein the ecological floating bed is a high-strength polystyrene floating bed. 6. The advanced treatment device for effluent in an ecological pond according to claim 1, wherein the ecological floating bed adopts the method of cultivating aquatic plants without soil on the water surface, and uses these plants to absorb nutrients produced by animals to treat eutrophic water bodies. 7. The ecological pond effluent advanced treatment device according to claim 1, wherein the filler suspended below the ecological floating bed is a nano-scale carbon fiber filler or a combined filler, which is arranged in an up and down form, and the area of the carbon fiber setting area is not less than the water area 20% of the area. 8. The ecological pond effluent advanced treatment device according to claim 1, wherein the composite filler inside the turbulent nano-aeration recoil screen filter adopts a natural zeolite molecular sieve and manganese sand with a particle diameter of 0.5-1.0mm, and the filler mixes The ratio is 5:1. 9. Utilize the method for sewage treatment of the ecological pond effluent advanced treatment device described in claim 1: Through a roller grid machine, the liquid-solid or liquid-liquid separation is realized by using the principle of rapid sedimentation and stratification of components with different suspension densities in the centrifugal force field; The outlet water of the roller grill machine is pressurized by the booster pump, and under the action of the shrinkage inlet pipe, it is sprayed into the bottom of the ecological pond under high pressure, so that the carbon fiber flow filler filled in the ecological pond is continuously rolled and mixed under the action of the water flow, and the The pollutants are degraded under the condition of oxygen; the water treated by the ecological pond pours into the pond body above the ecological pond through the barrier, and the carbon fiber filler is intercepted by the barrier; The solar water dynamic algae removal machine in the ecological pond uses solar energy as the driving force to drive the blades to form water flow; when running from bottom to top, the dynamic water increases oxygen, and when running from top to bottom, it breaks and decomposes the massive algae. Let the water body generate upper and lower layer convection, so that the water body can reach the high-efficiency circulation treatment and then enter the disturbing nano-aeration recoil screen filter; The nano-aeration head in the turbulent nano-aeration recoil screen filter works intermittently to disperse the dense dirt layer on the composite filler and semiconductor-loaded filler, and the pollutant layer overflows to the return tank under the buoyancy of the aeration tube , so that pollutants can be concentratedly removed and mixed with influent water for retreatment, so as to prolong the service life and backwashing cycle of the disturbed flow nano aeration backwashing screen filter; The aeration head of the semiconductor-loaded filler in the disturbed flow nano-aeration recoil screen filter adopts O ₃ aeration. Because the nano-bubbles have characteristics such as a large number, specific surface area, and slow rising speed, and the bubbles stay in the water for a long time, Increase the gas-liquid contact area and contact time, which is conducive to the dissolution of ozone in water, and overcomes the shortcomings of ozone insoluble in water; there is a large pressure inside the microbubbles and the interface disappears when the nanobubbles break, and the chemical energy generated by the drastic changes in the surrounding environment Promote the generation of more hydroxyl radicals OH, enhance the ability of O ₃ to oxidize and decompose organic matter; and nano-level O ₃ bubbles coexist with ultraviolet sterilization lamps and semiconductor-loaded fillers in the water storage tank to improve the advanced oxidation effect and increase the OH generation rate ; The effluent of the disturbed flow nano-aeration recoil screen filter flows back to the ecological pond at the same time to adjust the water quality and stimulate the secretion of secondary substances during the growth of plants; The effluent of the disturbed flow nano-aeration recoil screen filter flows into the nano-aeration and ablation device for nano-aeration treatment, which decomposes and ablates the refractory organic compounds in the sewage, and inactivates pathogenic bacteria and microorganisms. 10. The method according to claim 9, wherein the temperature of the nano-aeration ablation device is 25-35°C.