Environment-friendly ecological garden landscape system

Abstract

The present application relates to a kind of environmental protection type ecological garden landscape system, including green building landscape system, plant landscape system, waterscape system, waterscape system includes pool fountain, rock waterfall, artificial lake, waterscape, water system of pool fountain, water system of rock waterfall, water system of waterscape are all connected with water circulation purification system between, water circulation purification system includes catch basin, regulating basin, landscape water purification device and clear water pool.The green building landscape system is built by green material and / or green building material Building landscape, green, environmental protection, and the space of plant landscape system is good.Circulation utilization is carried out to landscape sewage by being provided with water circulation purification system, especially landscape water purification device, and the water purification effect is good, and one-time water treatment capacity is large, and efficiency is high.During sewage treatment, machine contaminant is degraded, and after anaerobic, anoxic, aerobic and reflux, denitrification, phosphorus removal and the like are realized, and the water purification effect is good.

Description

Technical Field

[0001] This invention relates to an environmentally friendly ecological garden landscape system, belonging to the field of garden technology. Background Technology

[0002] Plant landscapes are crucial structural elements of garden spaces, playing a decisive role. The design of garden plant spaces is a core aspect of landscape design, its importance evident not only in modern gardens. A plant exhibiting seasonal changes creates diverse and vibrant landscapes when forming different plant spaces. When designing plant landscapes, one should not solely focus on the aesthetic appeal of the plants themselves, but rather extend this consideration to the spatial context. Space is a fundamental element of landscape design; therefore, its study and application should begin from a spatial perspective.

[0003] How can we rationally arrange plantings to create various beautiful and practical garden spaces while adhering to the principles of plant ecology, conforming to the requirements of garden art composition and environmental protection, and enabling them to fully realize the comprehensive functions and ecological benefits of gardens? Furthermore, current garden designs, particularly architectural landscapes and water features, can be further improved in terms of green and environmental protection aspects, especially regarding the minimal recycling of water resources in water features, which needs to be strengthened.

[0004] Based on this, the present invention is proposed. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies by providing an environmentally friendly ecological garden landscape system, the specific technical solution of which is as follows:

[0006] An environmentally friendly ecological garden landscape system includes a green building landscape system, a plant landscape system, and a water feature system. The green building landscape system is an architectural landscape constructed using green materials and / or green building materials. The plant landscape system includes plant landscape spaces constructed from landscape plants. These plant landscape spaces include vertically segmented areas, covered areas, open plant spaces, covered plant spaces, and vertical plant spaces. The vertically segmented areas are composed of landscape plants with a height of 1-3 meters, and the landscape plants in the vertically segmented areas are one or more of broad-leaved or coniferous trees and deciduous plants. The covered areas are composed of landscape plants with a branching point height of 1.9 meters or more. The open plant spaces are created using lawns and biennial landscape plants, and the height of the open plant spaces is 1-1.4 meters. m; The covered plant space is set between the canopy of the landscape plants and the ground, and the covered plant space is constructed by large trees; The vertical surface of the vertical plant space is closed by landscape plants, the top plane of the vertical plant space is open and the middle is open, and the landscape plants in the vertical plant space are small trees and medium trees, and the small trees and medium trees form a tree row; The water feature system includes a pool fountain, a rockery waterfall, an artificial lake, and a water feature. The water systems of the pool fountain, the rockery waterfall, and the water feature are all connected to a water circulation and purification system. The water circulation and purification system includes a collection pool, a regulating pool, a landscape water purification device, and a clear water pool. The collection pool is used to collect landscape sewage and filter it through a bar screen. After the landscape sewage is treated in the collection pool and regulating pool, it is purified by the landscape water purification device to obtain clear water, which is temporarily stored in the clear water pool.

[0007] Further improvements include an anaerobic tank, an anoxic tank, an aerobic tank, and a sedimentation tank. Each of the anaerobic and anoxic tanks is equipped with at least one baffle plate. Overflow outlets are provided between the anaerobic and anoxic tanks, and between the anoxic and aerobic tanks. The aerobic tank contains, from top to bottom, a packing zone 1, a packing zone 2, a packing zone 3, and an aeration turbulence zone. Packing zone 1 is filled with packing material 1, packing zone 2 is filled with packing material 2, and packing zone 3 is filled with packing material 3. The aeration turbulence zone is equipped with U-shaped aerators. The aeration pipe rotates around the central axis of the aerobic tank. Two symmetrically arranged rotating platforms, each a frustum-shaped structure, are also installed in the second packing zone. Both platforms rotate in opposite directions at equal speeds. A connecting shaft is attached to the smaller end of each platform, and the larger ends of the two platforms are in contact. The length of the connecting shaft is perpendicular to the rotation axis of the aeration pipe. A connecting pipe connects the lower part of the aerobic tank to the lower part of the sedimentation tank, and a double gate valve is installed at the connecting pipe.

[0008] In a further improvement, the connecting shaft is rotated by a drive mechanism, which includes a gear one mounted at the end of the connecting shaft, a gear two meshing with the gear one, and a motor one for driving the gear two to rotate. The aeration pipe is rotated and inputs air by a drive-type air source mechanism, which includes a vertical pipe fixedly connected to the aeration pipe, a gear three sleeved at the end of the vertical pipe, a gear four meshing with the gear three, a motor two for driving the gear four to rotate, an L-shaped connector, and an air pump. The exhaust end of the air pump is connected to the horizontal part of the L-shaped connector, and the vertical part of the L-shaped connector is rotatably connected to and communicates with the lower end of the vertical pipe. The connecting shaft is rotatably connected to the side wall of the aerobic tank, the vertical pipe is connected to the bottom of the aerobic tank, and the lower end of the vertical pipe is rotatably connected to the vertical part of the L-shaped connector via bearings.

[0009] In a further improvement, a docking shaft is provided between the two rotating platforms. A blind hole adapted to the docking shaft is provided at the center of the large end of the rotating platform. The docking shaft and the blind hole are in clearance fit. A conical cone is provided at the end of the docking shaft. A cylindrical helical spring is provided between the cone and the bottom of the blind hole.

[0010] In a further improvement, magnetic strips are embedded in the side walls of both rotary tables; when both magnetic strips point to the third zone of the filler, the vertical planes in which the two magnetic strips are located are coplanar.

[0011] In a further improvement, the density of the first filler is less than that of pure water. The first filler includes a plastic ball, and a spherical cavity is provided in the center of the plastic ball. Conical holes are provided in six directions: directly above, directly below, directly left, directly right, directly in front, and directly behind the plastic ball. The small end of each conical hole is connected to the spherical cavity, and the large end of each conical hole extends to the surface of the plastic ball. The inner wall of each conical hole is provided with multiple concentric pleats.

[0012] The density of the filler 2 is 1 g / cm³. The filler 2 comprises, from the outside to the inside, a porous spherical shell 1, a porous spherical shell 2, and a porous spherical shell 3. The surface of the porous spherical shell 1 is provided with a plurality of regular hexagonal through holes 2. The surface of the porous spherical shell 2 is provided with a plurality of regular hexagonal through holes 3. The surface of the porous spherical shell 3 is provided with a plurality of regular triangular through holes 4. The ratio of the area of ​​the through hole 2 to the area of ​​the through hole 3 is m, 1 ≤ m ≤ 1.6; the ratio of the area of ​​the through hole 3 to the area of ​​the through hole 4 is n, 1 ≤ n ≤ 1.3; 0.75m = n;

[0013] The packing material in section three includes a magnetic plate fixedly installed inside the aerobic tank and multiple elastic ropes located above the magnetic plate. The surface of the magnetic plate is provided with multiple through holes. Both ends of the elastic ropes are fixedly connected to the inner wall of the aerobic tank. The density of the packing material in section three is .g / cm³. The packing material in section three includes a cubic plastic body. A spherical cavity is provided in the center of the plastic body. Circular holes are provided in six directions: top, bottom, left, right, front, and back of the plastic body. All circular holes are connected to the spherical cavity in section two.

[0014] In a further improvement, both filler two and filler three are plated with a nickel layer, and a modified polyurea film is coated on the nickel layer surface; the modified polyurea film is made by mixing polyurea coating, melamine and titanate coupling agent in a mass ratio of 100:(7~8):(1.1~1.2).

[0015] Further improvements involve fermenting the sludge in the sedimentation tank to obtain fermented activated sludge, which is then returned to the aerobic tank. The ratio of the volume of fermented activated sludge returned to the aerobic tank to the volume of wastewater in the aerobic tank is (0.25–0.3):1.

[0016] A further improvement is made to the method for preparing the fermented activated sludge as follows:

[0017] Drain the supernatant in the sedimentation tank, control the moisture content of the sludge in the sedimentation tank to 75% to 80%, add fermentation material according to the ratio of 2 to 3 parts of fermentation material for every 10,000 parts of sludge, and introduce compressed air during the feeding process.

[0018] Cover the opening of the sedimentation tank with a black film and ferment for 5 to 7 days to obtain fermented activated sludge.

[0019] A further improvement is made to the preparation method of the fermented material as follows: after sterilizing 100 parts of biomass raw materials, add 2.5 to 3.5 parts of Bacillus mycoides, 3 to 5 parts of lactic acid bacteria, and 3 to 5 parts of yeast, and ferment at room temperature for 30 to 40 days to obtain the fermented material; the biomass raw materials are one or more of straw, branches, leaves, hay, sawdust, and fruit shells, and the biomass raw materials are crushed to a particle size of 5 to 10 mm.

[0020] The beneficial effects of this invention are:

[0021] 1) The green building landscape system of the environmentally friendly ecological garden landscape system adopts building landscape constructed with green materials and / or green building materials, which is green and environmentally friendly and meets the design requirements of environmentally friendly ecological gardens.

[0022] 2) The plant landscape system creates a good sense of space and is more in line with the requirements of ecological garden design.

[0023] 3) By setting up a water circulation and purification system, landscape wastewater can be recycled. In particular, the landscape water purification device has a good water purification effect, a large single water treatment capacity, and high efficiency. During wastewater treatment, organic pollutants are degraded. Through anaerobic, anoxic, aerobic, and recirculation processes, denitrification and phosphorus removal are achieved. Compared with the existing MBBR water treatment process under the same conditions, the biofilm formation rate of this invention is increased by more than 50%. The effluent water quality can meet the national standard for greening water quality, "GB / T25499-2010 Urban Wastewater Reuse". Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the landscape water purification device described in this invention;

[0025] Figure 2 This is an internal schematic diagram of the docking of the two rotary tables of the present invention;

[0026] Figure 3 This is a schematic diagram of the docking of two rotary tables according to the present invention;

[0027] Figure 4 This is a schematic diagram of the structure within the three zones of the packing described in this invention;

[0028] Figure 5 This is a schematic diagram of the structure of the packing material one described in this invention;

[0029] Figure 6 This is a physical image of the packing material two described in this invention;

[0030] Figure 7 This is a physical image of the porous spherical shell III described in this invention;

[0031] Figure 8 This is a schematic diagram of the structure of the packing material three described in this invention;

[0032] Figure 9 Here is a physical image of packing material T1;

[0033] Figure 10 Here is a picture of the actual packing material T2;

[0034] Figure 11 This is a schematic diagram of the MBBR pool structure;

[0035] Figure 12 This is a schematic diagram showing the distribution of the stirring impeller and aeration pipe in Experiment Example 9;

[0036] Figure 13 This is a schematic diagram showing the distribution of the agitator and aeration pipe in Experiment Example 10;

[0037] Figure 14 This is a schematic diagram of the distribution of aeration pipes in Experiment Example 11;

[0038] Figure 15 This is a graph showing the relationship between the n value and the cleaning rate in Experiment Example 13. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] Example 1

[0042] The environmentally friendly ecological garden landscape system includes a green building landscape system, a plant landscape system, and a water feature system. The green building landscape system is an architectural landscape constructed from green materials and / or green building materials.

[0043] Green building materials, also known as green building materials, refer to healthy, environmentally friendly, and safe building materials. Green materials refer to new energy materials developed and utilized from clean energy sources such as solar, wind, hydro, tidal, and waste heat / waste power generation. Green building materials are those that are beneficial to environmental protection. Examples of green building materials include fiber-reinforced gypsum board, ceramics, glass, pipes, composite flooring, carpets, coatings, and wallpaper.

[0044] Green materials and green building materials must meet relevant green certifications. Green building materials include building materials products from China Green Product Certification Activity I and China Green Product Certification Activity II. Specifically, China Green Product Certification Activity I includes eight categories of products: engineered wood panels and wood flooring, coatings, sanitary ceramics, architectural glass, furniture, insulation materials, waterproofing and sealing materials, and ceramic tiles. China Green Product Certification Activity II includes building envelopes and concrete, doors, windows, curtain walls and decoration, waterproofing and sealing coatings, water supply and drainage and water treatment equipment, HVAC and solar energy utilization and lighting, and other equipment.

[0045] The plant landscape system includes landscape plants that are set up according to the terrain and landform. The landscape plants construct plant landscape spaces, which include vertically segmented areas, covered areas, open plant spaces, covered plant spaces, and vertical plant spaces.

[0046] The vertically segmented area is a surface composed of landscape plants ranging from 1 to 3 meters in height. These plants are one or more of broad-leaved or coniferous trees and deciduous plants. The vertical segmentation creates a clear spatial boundary and a strong sense of spatial enclosure. The upright tree trunks act as pillars within the space containing the vertical segmentation area, subtly conveying its three-dimensionality. Furthermore, the height of the branches and the density of the leaves contribute to the sense of enclosure. Among the landscape plants, trees and deciduous plants are preferred. For trees, the sense of enclosure created by broad-leaved or coniferous species is proportional to the tree's volume. The sense of enclosure created by deciduous plants changes with the seasons; they are enclosed in summer and open in winter. The spatial enclosure created by the branches of deciduous plants is significantly superior to the vertical spatial enclosure created by evergreen plants. Deciduous plants generally refer to temperate deciduous trees or shrubs.

[0047] The covered area is a surface composed of landscape plants with branching points at least 1.9 meters high. A branching point is the point where one or more branches branch off from a single trunk. The canopies of large and medium-sized landscape plants connect to form a covered garden space. The covered area is typically formed by branches and leaves above human height at the branching points, serving to restrict the viewer's line of sight to the sky. The sense of enclosure created by the covered area is related to the foliage density, branching point height, and layout of the landscape plants; it provides the strongest sense of enclosure in summer and the weakest in winter.

[0048] The open plant space is created by lawns and biennial landscape plants, with a height of 1-1.4m. When standing, the eye level is 1.5-1.6m, and within the open plant space, a person's line of sight needs to be above the plant landscape. Being in such a space provides a wide field of vision, a pleasant mood, and facilitates relaxation, leading to a sense of satisfaction.

[0049] Covered plant spaces are situated between the canopies of landscape plants and the ground, and are constructed using large trees. Large trees are generally defined as those exceeding 25 meters in height and having a canopy area exceeding 30 square meters, or plants with a height of 15 meters and a canopy area exceeding 25 square meters, and possessing a distinct main trunk. The height of the branching points and the dense canopy create the visual effect of covered plant spaces.

[0050] Vertical planting spaces are enclosed by landscape plants on their vertical surfaces, while the top plane is open and the center is spacious. The landscape plants in these spaces are small and medium-sized trees, arranged in rows to create an upward-opening space. Rows of small and medium-sized trees (arranged in rows) constitute a vertical planting space. Vertical planting spaces can give a strong sense of enclosure and isolation. Commonly chosen small trees include golden-leaved trees, colorful-leaved trees, agave species, cordyceps species, bamboo trees, phlox species, schefflera species, and pomegranates. Trees are defined as those with a distinct trunk, branching only above breast height, and a height of 5 meters or more. Trees between 5 and 9 meters in height are considered small trees. Medium-sized trees are those between 11 and 20 meters in height.

[0051] The water feature system includes a pool and fountain, an artificial waterfall, an artificial lake, and water features. The water systems of the pool and fountain, the artificial waterfall, and the water features are all connected to a water circulation and purification system. The water circulation and purification system includes a collection pool, a regulating pool, a landscape water purification device, and a clear water pool. The collection pool is used to collect landscape wastewater and filter it through a bar screen. After being treated in the collection pool and regulating pool, the landscape wastewater is purified by the landscape water purification device to obtain clear water, which is then temporarily stored in the clear water pool.

[0052] The water used in pools, fountains, artificial waterfalls, and water features can come from artificial lakes or municipal tap water. To conserve water and meet environmental protection requirements, the water used in pools, fountains, artificial waterfalls, and water features can be recycled, and a water recycling and purification system is used to purify and reuse the water.

[0053] A bar screen is a mechanical device used to remove pollutants. It mainly consists of a mesh, filter screen, filter, cleaning device, and other components. Its main function is to capture, separate, and remove suspended solids, sediments, organic matter, and other pollutants from water.

[0054] In order to ensure that the wastewater treatment process operates normally and stably, and is not affected by changes in peak wastewater flow or concentration, an equalization tank is set up to ensure that the wastewater has a relatively stable flow rate and uniform water quality before treatment.

[0055] Example 2

[0056] like Figure 1As shown, the landscape water purification device includes an anaerobic tank 11, an anoxic tank 12, an aerobic tank 13, and a sedimentation tank 14. At least one baffle plate 15 is installed in both the anaerobic tank 11 and the anoxic tank 12. Overflow outlets 16 are provided between the anaerobic tank 11 and the anoxic tank 12, and between the anoxic tank 12 and the aerobic tank 13. The aerobic tank 13 contains, from top to bottom, a packing zone 1 24, a packing zone 23, a packing zone 3 22, and an aeration turbulence zone 21. Packing zone 1 24 is filled with packing material 1, packing zone 23 is filled with packing material 2, and packing zone 3 22 is filled with packing material 3. A U-shaped... The aeration pipe 20 rotates around the central axis of the aerobic tank 13. Two symmetrically arranged rotating platforms 30 are also provided in the packing zone 23. Each rotating platform 30 has a frustum-shaped structure and rotates in opposite directions at equal speeds. A connecting shaft 64 is connected to the smaller end of each rotating platform 30, and the larger ends of the two rotating platforms 30 are in contact. The length of the connecting shaft 64 is perpendicular to the rotation axis of the aeration pipe 20. A connecting pipe connects the lower part of the aerobic tank 13 to the lower part of the sedimentation tank 14, and a double gate valve 40 is installed at the connecting pipe.

[0057] The baffle 15 is mainly used to change the flow channel in the pool, thereby making full use of the space in the pool.

[0058] Wastewater discharged from the equalization tank first enters the anaerobic tank 11, the anoxic tank 12, the aerobic tank 13, and the sedimentation tank 14. First, the wastewater enters the anaerobic tank 11, where anaerobic bacteria hydrolyze, acidify, and methanate organic matter, removing organic matter and improving the wastewater's biodegradability, which is beneficial for subsequent aerobic treatment. The anaerobic tank is mainly used for anaerobic digestion. For wastewater with high influent COD concentrations, anaerobic reaction is usually performed first to improve COD removal rate, converting high-molecular-weight, recalcitrant organic matter into low-molecular-weight, easily degradable organic matter, and increasing the BOD / COD ratio. Furthermore, the phosphorus removal process requires alternating anaerobic and aerobic conditions. Under anaerobic conditions, some recalcitrant organic matter, such as large-molecule organic matter, can be hydrolyzed into smaller-molecule organic matter by extracellular enzymes secreted by anaerobic bacteria. This is beneficial for the operation of the subsequent aerobic biological treatment tank; otherwise, it would impact the aerobic tank, leading to substandard effluent COD.

[0059] Secondly, within the anoxic tank 12, hydrolysis occurs, causing an increase in pH during the denitrification process. In this process, it primarily functions as a denitrifier to remove nitrate nitrogen, while also removing some BOD. The hydrolysis reaction also enhances biodegradability. The anoxic tank utilizes fasciotrophic microorganisms and biofilms to degrade organic matter in the wastewater.

[0060] Secondly, in aerobic tank 13, the dissolved oxygen content in the water is maintained at around 4 mg / L through aeration and other measures, which is suitable for the growth and reproduction of aerobic microorganisms, thereby treating pollutants in the water. The function of the aerobic tank is to allow activated sludge to undergo aerobic respiration under the action of microorganisms, further decomposing organic matter into inorganic matter and removing pollutants.

[0061] Packing materials 1, 2, and 3 have excellent biofilm attachment properties, can enrich a large number of nitrifying bacteria and heteroaerobic bacteria, and are aerated at the bottom of the tank. In this area, a large amount of organic matter is degraded and ammonia nitrogen is converted into nitrate nitrogen. Meanwhile, the inside of the biofilm is in an anaerobic state, and nitrate nitrogen is converted into nitrogen gas through denitrification and discharged from the system, further improving the denitrification capacity.

[0062] Finally, the wastewater treated in the aerobic tank 13 enters the sedimentation tank 14, where it undergoes sedimentation treatment to separate solids and liquids. The supernatant is then drawn off from the top of the sedimentation tank 14, and the settled activated sludge settles to the bottom of the sedimentation tank 14. A portion of the activated sludge is then transported to the interior of the aerobic tank 13 via airlift equipment to accelerate the purification effect of the activated sludge and biofilm on the wastewater and improve the denitrification and carbon removal capacity. The remaining activated sludge can be used for fertilizing landscape plants.

[0063] In this embodiment, the U-shaped aeration pipe 20, which can rotate, quickly forms gas and liquid turbulence in the aeration turbulence zone 21. Furthermore, it can effectively prevent a large amount of activated sludge from settling to the bottom in the aerobic tank 13. In the aeration turbulence zone 21, the environment for microbial growth is a three-phase system of gas, liquid, and solid. In addition, the collision and shearing effects result in higher oxygen utilization.

[0064] First, the frustum-shaped rotating platform 30 rotates horizontally, effectively stirring the packing material in zone 23. Secondly, if the two rotating platforms 30 rotate in the same direction, the shearing effect will be very poor after a period of rotation due to inertia. Therefore, rotating the two platforms 30 in opposite directions significantly improves the shearing effect. Since the rotation speed of the rotating platforms 30 is typically between 100 and 300 rpm, the rotation speeds of the two platforms 30 must be equal to ensure stability. To reduce energy consumption, the rotating platform 30 adopts a hollow structure. This special structure of the rotating platform 30 allows the packing material in zone 23, which is in a suspended state, to be first pushed to the side wall of the aerobic tank 13. Then, under the action of water and air flow, it is drawn to the middle of zone 32, and then thrown to the top of zone 32, repeating this cycle continuously.

[0065] In the aerobic tank 13 described in this invention, the proportion of total packing material is 70% to 75%, and the proportion of total packing material is the ratio of the total volume of all packing material to the volume of wastewater in the aerobic tank 13. The total volume of all packing material is the sum of the volumes of packing material one, packing material two, and packing material three. In contrast, the proportion of suspended packing material in conventional aerobic tanks is 40% to 60%. The depth of the aerobic tank 13 described in this invention is typically 5 to 6 meters. Conventional aerobic tanks are 3 meters deep and have multiple layers of aeration pipes installed at varying heights. This invention is particularly suitable for deeper tanks with only one layer of aeration pipe 20, allowing for large single-pass treatment, effectively avoiding aeration waste, and improving aeration utilization.

[0066] Example 3

[0067] In Example 2, as Figure 1 As shown, the connecting shaft 64 is driven to rotate by a drive mechanism. The drive mechanism includes a gear 63 installed at the end of the connecting shaft 64, a gear 62 meshing with the gear 63, and a motor 61 used to drive the gear 62 to rotate. The motor 61 drives the connecting shaft 64 to rotate through the gear 62 and the gear 63, thereby driving the corresponding rotary table 30 to rotate.

[0068] The aeration pipe 20 is driven to rotate and input air by a drive-type air source mechanism. The drive-type air source mechanism includes a vertical pipe 53 fixedly connected to the aeration pipe 20, a gear 3 54 sleeved at the end of the vertical pipe 53, a gear 4 55 meshing with the gear 3 54, a motor 2 56 for driving the gear 4 55 to rotate, an L-shaped pipe 52, and an air pump 51. The exhaust end of the air pump 51 is connected to the horizontal part of the L-shaped pipe 52, and the vertical part of the L-shaped pipe 52 is rotatably connected to and communicates with the lower end of the vertical pipe 53. The connecting shaft 64 is rotatably connected to the side wall of the aerobic tank 13, the vertical pipe 53 is rotatably connected to the bottom of the aerobic tank 13, and the lower end of the vertical pipe 53 is rotatably connected to the vertical part of the L-shaped pipe 52 by mounting bearings.

[0069] The motor 56 drives the vertical pipe 53 to rotate via gears 55 and 54, which in turn drives the U-shaped aeration pipe 20 to rotate, thereby stirring the aeration turbulence zone 21. Additionally, the air pump 51 supplies air to the aeration pipe 20 through the L-shaped connector 52 and the vertical pipe 53, ultimately aerating the aeration turbulence zone 21. This dual action of aeration and stirring further improves the dispersion of oxygen in the wastewater. In this invention, due to the large amount of packing material, relying solely on aeration is insufficient to quickly meet the oxygen demand. The vertical part of the L-shaped connector 52 is rotatably connected to the lower end of the vertical pipe 53, satisfying both the rotation requirement of the aeration pipe 20 and the aeration requirement.

[0070] Example 4

[0071] In Example 2, as Figure 1 , 2 As shown, a docking shaft 31 is provided between two rotating platforms 30. A blind hole 301 adapted to the docking shaft 31 is provided at the center of the large end of the rotating platform 30. The docking shaft 31 and the blind hole 301 are in clearance fit. A conical cone is provided at the end of the docking shaft 31. A cylindrical helical spring 32 is provided between the cone and the bottom of the blind hole 301.

[0072] Due to the significant weight of the two rotary tables 30, a connecting shaft 31 is necessary to ensure stability and keep the two rotary tables 30 horizontal while rotating. Without the cylindrical helical spring 32 and the conical section, the connecting shaft 31 and the blind hole 301 would have a clearance fit, resulting in high wear. The conical section is designed to reduce friction. The cylindrical helical spring 32 provides cushioning, further reducing wear. The structure consisting of the cylindrical helical spring 32, connecting shaft 31, blind hole 301, and conical section significantly improves the stability between the two rotary tables 30; especially since the two rotary tables 30 rotate in opposite directions, which can easily lead to a decrease in stability, the cylindrical helical spring 32, connecting shaft 31, blind hole 301, and conical section are essential.

[0073] Example 5

[0074] In Example 4, as Figure 3 As shown, magnetic strips 33 are embedded in the side walls of both rotating platforms 30; when both magnetic strips 33 point to the packing zone 22, the vertical planes where the two magnetic strips 33 are located are coplanar.

[0075] The magnetic strips 33 on the sidewalls of the two rotating platforms 30 are initially in opposite positions. When the two rotating platforms 30 rotate in opposite directions, at a certain moment, the two magnetic strips 33 will be in the same plane, which will cause magnetic disturbance to the packing area 23.

[0076] Example 6

[0077] Based on Example 5, the density of the first filler is less than that of pure water, for example, it is 0.93 to 0.95 g / cm³. 3 ;like Figure 5 As shown, the filler includes a plastic ball 70, with a spherical cavity 71 at its center. Conical holes 73 are provided in six directions: top, bottom, left, right, front, and back. The small ends of the conical holes 73 communicate with the spherical cavity 71, and the large ends extend to the surface of the plastic ball 70. Multiple concentric pleated rings 731 are provided on the inner wall of the conical holes 73. The conical holes 73 are arranged in groups of three adjacent to each other, with a triangular smooth portion 74 between each three adjacent conical holes 73.

[0078] The special structure of the plastic ball 70 has the advantage of larger openings, allowing for rapid microbial reaction after biofilm formation. In particular, the unique conical holes 73 and pleated rings 731 facilitate biofilm formation in the initial stage. Furthermore, the biofilm blocks at the conical holes 73 are prone to detachment later due to their own weight and impact, facilitating the start of the next cycle. Its low density allows it to easily form a packing zone 24 in the upper layer of the aerobic tank 13.

[0079] The density of the second filler is 1 g / cm³. 3 ,like Figure 6 , 7 As shown, the filler material 2 comprises, from the outside in, a porous spherical shell 1, a porous spherical shell 2, and a porous spherical shell 3. The surface of the porous spherical shell 1 has multiple hexagonal through-holes 2, the surface of the porous spherical shell 2 has multiple hexagonal through-holes 3, and the surface of the porous spherical shell 3 has multiple triangular through-holes 4. The ratio of the area of ​​through-hole 2 to the area of ​​through-hole 3 is m, where 1 ≤ m ≤ 1.6; the ratio of the area of ​​through-hole 3 to the area of ​​through-hole 4 is n, where 1 ≤ n ≤ 1.3; 0.75m = n. Preferably, m = 1.6 and n = 1.2.

[0080] First, during manufacturing, porous spherical shells one, two, and three are preferably split in half from the diameter and then bonded together. Second, the density of filler two ensures that it is usually in a suspended state. The multi-layered microporous structure makes it easier for biofilm to attach and more susceptible to water flow disturbance. Furthermore, the internal porous spherical shells two and three experience stronger shearing under the influence of inertia and water flow, which is beneficial for biofilm attachment and promotes microbial reactions. The filler two zone 23 is essentially subjected to micro-stirring according to a certain flow direction to achieve the above effects; if a stronger stirring impeller were used, it would disrupt the flow field and worsen the water purification effect.

[0081] like Figure 4 As shown, the packing material zone 22 includes a magnetic plate 221 fixedly installed inside the aerobic tank 13 and multiple elastic ropes 222 all located above the magnetic plate 221. The magnetic plate 221 has multiple through holes 2211 on its surface. Both ends of the elastic ropes 222 are fixedly connected to the inner wall of the aerobic tank 13. The density of the packing material zone 222 is 1.02 g / cm³. 3 ;like Figure 8 As shown, the filler three includes a cubic plastic body 223, and a spherical cavity 2231 is provided in the center of the plastic body 223. Circular holes 2232 are provided in six directions: top, bottom, left, right, front, and back of the plastic body 223, and all circular holes 2232 are connected to the spherical cavity 2231.

[0082] Both filler 2 and filler 3 are plated with a nickel layer, and a modified polyurea film is coated on the surface of the nickel layer.

[0083] The elastic rope 222 (rubber rope) passes through the circular hole 2232, effectively preventing a large amount of packing material from escaping from the packing zone 22. The elastic rope 222 allows for small displacements of the packing material within the packing zone 22, thus effectively ensuring contact between the packing material and oxygen within the packing zone 22.

[0084] The magnetic force of the magnetic plate 221, combined with the high density of the packing material 3, enables the packing material 3 to stably form a stable "separator" in the packing material 3 zone 22, thereby separating the aeration turbulence zone 21 and the packing material 2 zone 23, ensuring the flow state of the flow field in each zone, facilitating the attachment of different types of microorganisms, and thus achieving the corresponding purification effect.

[0085] Example 7

[0086] Based on Example 6, the modified polyurea membrane is prepared by mixing polyurea coating, melamine, and titanate coupling agent in a mass ratio of 100:(7-8):(1.1-1.2). A preferred mass ratio is 100:7.6:1.1.

[0087] The polyurea can be selected from Dow Grey 85AK type polyurea coating. If the filler surface only has a nickel layer without a modified polyurea film, the nickel layer will be worn away by the filler in sewage for a long time. Polyurea has properties such as corrosion resistance, water resistance, and wear resistance. However, if conventional polyurea is not modified, the consequence is that the biofilm formation time will be extended by 33% (e.g., from 12 days to 16 days). Due to the use of melamine modification, the surface interface properties are changed, which will lead to an increase in the cleanability (e.g., up to 41%); therefore, by adding a titanate coupling agent, the cleanability can be reduced to below 30%.

[0088] In contrast, if the polyurea coating was replaced with epoxy resin, the final film formation time was 19 days and the washing rate was 61%.

[0089] In contrast, if the titanate coupling agent was replaced with a silane coupling agent, the final biofilm formation time was 17 days and the washing rate was 43%.

[0090] Example 8

[0091] Based on Example 7, the sludge in the sedimentation tank 14 is fermented to obtain fermented activated sludge, and then the fermented activated sludge is returned to the aerobic tank 13. The ratio of the volume of the fermented activated sludge returned to the aerobic tank 13 to the volume of the wastewater in the aerobic tank 13 is (0.25~0.3):1; the preferred ratio is 0.27:1.

[0092] After the wastewater is mixed with the fermented activated sludge, it enters the aerobic tank 13. During the mixing process, the organic matter is removed through adsorption, flocculation and oxidation.

[0093] The double gate valve 40 has two gates, one of which has multiple small holes (hole diameter less than or equal to 6mm) densely distributed on its surface. By controlling the opening and closing of the two gates, it can be used for different processes.

[0094] The method for preparing the fermented activated sludge is as follows:

[0095] Drain the supernatant in sedimentation tank 14. Control the moisture content of the sludge in sedimentation tank 14 to 75%–80%. Add fermentation material at a ratio of 2–3 parts fermentation material per 10,000 parts sludge (using a feeding pipe). Compressed air is introduced during the feeding process. For example, 1 kg of fermentation material is needed for 4 tons of sludge.

[0096] Cover the opening of sedimentation tank 14 with a black film and ferment for 5 to 7 days to obtain fermented activated sludge.

[0097] The process involves sterilizing 100 parts of biomass raw materials, then adding 2.5–3.5 parts of Bacillus mycoides, 3–5 parts of lactic acid bacteria, and 3–5 parts of yeast, and fermenting at room temperature for 30–40 days to obtain fermented material. The biomass raw materials are common and readily available materials in gardens, such as straw, branches, leaves, hay, sawdust, and fruit shells. The biomass raw materials are crushed into particles of 5–10 mm.

[0098] First, since the aerobic tank 13 of this invention is very deep (5 meters), if fermented activated sludge is not added, it will lead to anaerobic fermentation and produce odor, which will affect the water treatment effect.

[0099] If the settled sludge is not fermented, it is prone to odor due to excessive bacteria. Covering the tank with a black film is used to control the fermentation temperature.

[0100] Experimental Example 1

[0101] The MBBR tank is 13s, and it contains only one layer of aeration pipes 20. Figure 11 As shown; this is equivalent to only having aerobic tank 13 and aeration pipe 20 in Example 2. The same volume of packing material as in Example 2 is added to the MBBR tank 13s. The packing material is MBBR biological packing material (single layer) from Yixing Suyou Environmental Protection Packing Co., Ltd., which is a single layer with multiple polygonal pores on the surface, such as... Figure 9 As shown, this is simply referred to as packing T1, with a specific gravity of 0.96–0.98 g / cm³. 3 The aeration flow rate and other water treatment processes in the tanks were the same as in Example 8. The biofilm formation time was determined to be 37 days according to the "Successful Biofilm Formation Test Standard".

[0102] Experimental Example 2

[0103] The MBBR tank is 13s, and it contains only one layer of aeration pipes 20. Figure 11 As shown; this is equivalent to Example 2 with only aerobic tank 13 and aeration pipe 20. The same volume of packing material as in Example 2 is added to the MBBR tank 13s. The packing material is the built-in sponge suspended ball packing (spherical) from Yixing Suyou Environmental Protection Packing Co., Ltd., as shown. Figure 10 As shown, this is simply referred to as packing material T2, with a specific gravity of 0.96–0.98 g / cm³. 3 The aeration flow rate and other water treatment processes in the tanks were the same as in Example 8. The biofilm formation time was determined according to the "Successful Biofilm Formation Test Standards" and was 31 days.

[0104] Experimental Example 3

[0105] The MBBR tank is 13s, and it contains only one layer of aeration pipes 20. Figure 11 As shown; this is equivalent to Example 2 with only aerobic tank 13 and aeration pipe 20. The same volume of packing material as in Example 2 was added to the MBBR tank 13s. The packing material was Pall ring packing from Yixing Suyou Environmental Protection Packing Co., Ltd., abbreviated as packing material T3, with a specific gravity of 0.96–0.98 g / cm³. 3 The aeration flow rate and other water treatment processes in the tanks were the same as in Example 8. The biofilm formation time was determined according to the "Successful Biofilm Formation Test Standards" and was 39 days.

[0106] Test Example 4

[0107] The MBBR tank is 13s, and it contains only one layer of aeration pipes 20. Figure 11 As shown; this is equivalent to Example 2 with only aerobic tank 13 and aeration pipe 20. The same volume of packing material as in Example 2 was added to the MBBR tank for 13 seconds; the packing material was the same as packing material one from Example 6. The aeration flow rate and the water treatment process in other tanks were the same as in Example 8. The biofilm formation time was obtained according to the "Successful Biofilm Formation Test Standard," and was 31 days.

[0108] Experimental Example 5

[0109] The MBBR tank is 13s, and it contains only one layer of aeration pipes 20. Figure 11 As shown; this is equivalent to Example 2 with only aerobic tank 13 and aeration pipe 20. The same volume of packing material as in Example 2 was added to the MBBR tank for 13 seconds; the packing material was packing material II from Example 6. The aeration flow rate and the water treatment processes in other tanks were the same as in Example 8. The biofilm formation time was determined according to the "Successful Biofilm Formation Test Standard," and was 36 days.

[0110] Experimental Example 6

[0111] The MBBR tank is 13s, and it contains only one layer of aeration pipes 20. Figure 11 As shown; this is equivalent to Example 2 with only aerobic tank 13 and aeration pipe 20. The same volume of packing material as in Example 2 was added to the MBBR tank for 13 seconds; the packing material was packing material three from Example 6. The aeration flow rate and the water treatment processes in other tanks were the same as in Example 8. The biofilm formation time was determined according to the "Successful Biofilm Formation Test Standard," and was 36 days.

[0112] In Example 6, packing materials 1, 2, and 3 were used to form corresponding packing zones 1, 2, and 3. The biofilm formation time was determined to be 12 days according to the "Successful Biofilm Formation Test Standard." As shown in Example 6 and Examples 1-6, compared to conventional packing materials (such as packing materials T1, T2, and T3), the biofilm formation time of packing materials 1, 2, and 3 in this invention is not significantly different when used in a conventional MBBR biofilm reactor. However, when packing materials 1, 2, and 3 are used together, with the assistance of two counter-rotating rotating platforms 30 and rotating aeration pipes 20, rapid biofilm formation is achieved, with the speed increased several times over.

[0113] Experimental Example 7

[0114] In this embodiment, only packing material 1 (i.e., replacing the original packing materials 2 and 3 with packing material 1), only packing material 2 (i.e., replacing the original packing materials 1 and 3 with packing material 2), only packing material 3 (i.e., replacing the original packing materials 1 and 2 with packing material 3) and only packing material T3 (i.e., replacing the original packing materials 1, 2, and 3 with packing material T3) are used in the aerobic tank 13, with all other conditions remaining unchanged. The biofilm formation time was obtained according to the "Successful Biofilm Formation Test Standard," and the cleaning rate was obtained according to the "Biofilm Cleaning Test." The results are shown in Table 1.

[0115] Table 1

[0116]

[0117] As shown in Table 1, because the aerobic tank 13 of this invention is very deep (usually 5 meters), conventional packing materials and conventional aeration methods cannot obtain the required amount of oxygen, significantly affecting the water purification effect of microorganisms. This easily leads to a large amount of sludge adhering to the surface of the packing materials, making it very difficult to clean and also affecting microbial purification, causing the water to smell bad. Packing materials one, two, and three are each attached to different types of microorganisms in their respective areas, thus exerting their corresponding water purification effects and ultimately enabling rapid biofilm formation. This invention is particularly suitable for deep tanks with only one layer of aeration pipes 20, allowing for large single-pass treatment, effectively avoiding aeration waste, and improving aeration utilization.

[0118] Experimental Example 8

[0119] Experimental Group 1 differs from Example 6 only in that the through holes 2 and 3 on the surface of the porous spherical shell are both round holes, while the rest remain unchanged. The corresponding filler is filler Y1.

[0120] Experimental Group 2 differs from Example 6 only in that the through holes 2 and 3 on the surface of the porous spherical shell are both square, while the rest remain unchanged, and the corresponding filler is filler Y2.

[0121] Experimental Group 3 differs from Example 6 only in that the through holes on the three surfaces of the porous spherical shell are square, while the rest remain unchanged, and the corresponding filler is filler Y3.

[0122] Packing material 2, packing material Y1, packing material Y2, and packing material Y3 were tested according to the "Film Clearing Test" and "Compressive Strength Test of Packing Material". The results are shown in Table 2.

[0123] Table 2

[0124]

[0125] As shown in Table 2, the through holes 2 and 3 on the surface of the porous spherical shell are preferably regular hexagonal holes, and the through hole 4 on the surface of the porous spherical shell is preferably an equilateral triangle.

[0126] Experimental Example 9

[0127] like Figure 12 As shown, the only difference between this embodiment and Embodiment 8 is that the stirring paddle 80 is used to stir the packing material in zone 23, and the aeration pipe 20 does not rotate; all other conditions are the same. According to the "Successful Biofilm Formation Test Standard," the biofilm formation time was 26 days, and it was found that the water became foul-smelling after 26 days. This indicates that although biofilm formation was successful, the formed biofilm was unhealthy, containing many miscellaneous bacteria, which seriously affected the water treatment results.

[0128] Experimental Example 10

[0129] like Figure 13 As shown, the only difference between this embodiment and Embodiment 8 is that an agitator 80 is used to agitate the packing material in zone 23. The rotation direction of the agitator 80 is opposite to that of the aeration pipe 20, and their rotation speeds are the same. All other conditions are the same. According to the "Successful Biofilm Formation Test Standard", the biofilm formation time was 32 days. It was found that the water turned black and smelled bad after 32 days. This indicates that although biofilm formation was successful, many miscellaneous bacteria were present in the biofilm, which seriously affected the water treatment results.

[0130] Experimental Example 11

[0131] like Figure 14As shown, the only difference between this embodiment and Embodiment 8 is that the aeration pipe 20 does not rotate; all other conditions are the same. According to the "Successful Biofilm Formation Test Standard," the biofilm formation time is 20 days, and the water has no odor after 20 days.

[0132] Experimental Example 12

[0133] Experimental Group 4 differs from Example 8 only in that unfermented sludge (sludge from sedimentation tank 14, referred to as ordinary sludge) is recycled back to aerobic tank 13. The volume ratio of unfermented sludge recycled to aerobic tank 13 to wastewater in aerobic tank 13 is 0.27:1. Additionally, the water depths in aerobic tank 13 are 5, 6, and 7 meters respectively. The biofilm formation time was obtained according to the "Successful Biofilm Formation Test Standard," and the results are shown in Table 3.

[0134] Experimental group 5 differed from Example 8 only in that Bacillus mycoides was not added, while all other conditions remained unchanged, ultimately yielding sludge L1. Additionally, the water depths in aerobic tank 13 were 5, 6, and 7 meters respectively. The biofilm formation time was obtained according to the "Standards for Successful Biofilm Formation Test," and the results are shown in Table 3.

[0135] Experimental group 6 differed from Example 8 only in that *Bacillus mycoides* was replaced with *Bacillus subtilis*, while all other conditions remained unchanged, ultimately yielding sludge L2. Additionally, the water depths in aerobic tank 13 were 5, 6, and 7 meters, respectively. The biofilm formation time was determined according to the "Standards for Successful Biofilm Formation Test," and the results are shown in Table 3.

[0136] Table 3

[0137]

[0138] Table 3 shows that using ordinary sludge that has not undergone fermentation treatment does not significantly help shorten the biofilm formation time. In particular, if the fermenting bacteria used in the fermented activated sludge do not contain Bacillus mycoides, the fermentation effect is poor, especially in inhibiting other bacteria; even using Bacillus subtilis, which belongs to the same Bacillus genus, cannot improve the activity of the subsequent fermented activated sludge. Most importantly, using strains containing Bacillus mycoides results in fermented activated sludge that is more suitable for microbial reactions in deeper wastewater, and its effect on shortening the biofilm formation time is significant.

[0139] Experimental Example 13

[0140] Since the volume of porous spherical shell II is smaller than that of porous spherical shell I, and its specific surface area is also smaller, m ≥ 1; considering the specific surface area, after multiple experiments, it was determined that m = 1.6.

[0141] When m = 1.6, by changing the value of n, the curve of the cleaning rate measured according to the "Clean Film Test" is shown in the figure. Figure 15Therefore, n is preferably 1.2.

[0142] In the above embodiments, the biofilm formation time is 12 days in summer. The effluent quality meets the national standard for greening water quality, GB / T 25499-2010 Urban Wastewater Reclaimed Water.

[0143] Standards for Successful Biofilm Attachment Testing

[0144] When the density of the packing material increases by more than 0.04 g / cm³ after biofilm formation. 3 Simultaneously, a biofilm thickness of at least 0.4 mm on the surface of the packing material indicates successful biofilm formation. For example, if the density of the packing material before biofilm formation is 1 g / cm³... 3 The density of the packing material after biofilm formation was 1.04 g / cm³. 3 The average thickness of the biofilm on the packing material surface was 0.43 mm, indicating successful biofilm formation. The number of days from the start to successful biofilm formation can be calculated, which is the biofilm formation time.

[0145] Cleaning film test

[0146] Step P1: Insert four cleaning water pipes into the packing zone 22. The outlet water pressure of the cleaning water pipes is 12 kg / cm². 3 The rotating table 30 rotates at 500 rpm, and the aeration pipe 20 rotates at 500 rpm.

[0147] Step P2: Weighing; the weight of the packing material (such as packing material one, packing material two, or packing material three) in aerobic tank 13 before wastewater treatment is x0; the weight of the packing material in aerobic tank 13 after wastewater treatment is x1; the weight of the packing material in aerobic tank 13 after cleaning according to step P1 is x2; cleaning rate = (x2-x0) / (x1-x0). The lower the cleaning rate, the better. According to actual production, when the cleaning rate is less than or equal to 30%, it can be judged as clean and can be used for the next cycle operation.

[0148] Test of compressive strength of filler

[0149] Select 10 packing materials (e.g., packing material 2, packing material Y1, packing material Y2, and packing material Y3) and pressurize them on a press until the deformation rate of the packing material exceeds 50%. Record the pressure value applied at this point. Deformation rate = the ratio of the difference between the diameter of the packing material before and after deformation to the diameter of the packing material before deformation.

[0150] All equipment components of this invention have undergone anti-corrosion treatment.

[0151] As a supplement to existing technologies: Before being dried by sludge dewatering or drying equipment, sludge has a high moisture content of about 99%, and is in a fluid state. The density of sludge is generally the same as that of water, at 1.006 g / cm³.3 Approximately. As the moisture content of the sludge decreases, its density increases, reaching its maximum at a moisture content of 65%, at 1.22 g / cm³. 3 At this stage, the sludge is in the form of a sludge cake. As the moisture content of the sludge continues to decrease, its density also decreases. When the moisture content reaches 40%, the sludge becomes solid, loses its fluidity, and has a density slightly greater than 1. At this point, the density depends on the particle size and the degree of aggregation. The lower the moisture content of the sludge, the lower its density. At 10% moisture content, the density of the sludge is 0.55 g / cm³. 3 The main factor affecting sludge density is its moisture content, while the secondary factors are the organic matter content and the particle size after drying.

[0152] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An environmentally friendly ecological garden landscape system, comprising a green building landscape system, a plant landscape system, and a water feature system, wherein the green building landscape system is an architectural landscape constructed from green materials; The plant landscape system includes plant landscape spaces constructed from landscape plants, which include vertically segmented areas, covered areas, open plant spaces, covered plant spaces, and vertical plant spaces. The vertically segmented area is a surface composed of landscape plants with a height of 1 to 3 meters. The landscape plants in the vertically segmented area are one or more of broad-leaved trees or coniferous trees and deciduous plants. The coverage area is a surface composed of landscape plants with a branch point height of 1.9 meters or more; The open plant space is created by lawns and biennial landscape plants, and the height of the open plant space is 1~1.4m; The covered plant space is set between the canopy of the landscape plants and the ground, and the covered plant space is constructed by large trees; The vertical surfaces of the vertical plant space are enclosed by landscape plants, while the top plane of the vertical plant space is open and the middle is spacious. The landscape plants in the vertical plant space are small trees and medium trees, which form a tree row. The water feature system comprises a pool fountain, a rock waterfall and an artificial lake, and a water circulation and purification system is connected between the water supply system of the pool fountain and the water supply system of the rock waterfall. The water circulation purification system includes a water collection tank, a regulating tank, a landscape water purification device, and a clear water tank. The water collection tank is used to collect landscape sewage and filter it through a bar screen. After the landscape sewage is treated by the water collection tank and the regulating tank, it is purified by the landscape water purification device to obtain clear water, which is temporarily stored in the clear water tank. The landscape water purification device includes an anaerobic tank (11), an anoxic tank (12), an aerobic tank (13), and a sedimentation tank (14). At least one baffle plate (15) is installed in both the anaerobic tank (11) and the anoxic tank (12). Overflow outlets (16) are provided between the anaerobic tank (11) and the anoxic tank (12), and between the anoxic tank (12) and the aerobic tank (13). The aerobic tank (13) is arranged from top to bottom as follows: a packing zone 1 (24), a packing zone 2 (23), a packing zone 3 (22), and an aeration turbulence zone (21). The packing zone 1 (24) is filled with packing material 1, the packing zone 2 (23) is filled with packing material 2, the packing zone 3 (22) is filled with packing material 3, and the aeration turbulence zone (21) is equipped with… A U-shaped aeration pipe (20) is provided, which rotates around the central axis of the aerobic tank (13). Two symmetrically arranged rotating platforms (30) are also provided in the second packing zone (23). The rotating platforms (30) are frustum-shaped structures. Both rotating platforms (30) rotate in opposite directions and at the same speed. A connecting shaft (64) is connected to the small end of the rotating platform (30). The large ends of the two rotating platforms (30) are in contact. The length direction of the connecting shaft (64) is perpendicular to the rotation axis of the aeration pipe (20). A connecting pipe is connected between the lower part of the aerobic tank (13) and the lower part of the sedimentation tank (14). A double gate valve (40) is provided at the connecting pipe. A docking shaft (31) is provided between the two rotating platforms (30). A blind hole (301) adapted to the docking shaft (31) is provided at the center of the large end of the rotating platform (30). The docking shaft (31) and the blind hole (301) are in clearance fit. A conical cone is provided at the end of the docking shaft (31). A cylindrical helical spring (32) is provided between the cone and the bottom of the blind hole (301).

2. The eco-friendly ecological garden landscape system according to claim 1, characterized in that: The connecting shaft (64) is driven to rotate by a drive mechanism, which includes a gear 1 (63) installed at the end of the connecting shaft (64), a gear 2 (62) meshing with the gear 1 (63), and a motor 1 (61) used to drive the gear 2 (62) to rotate; the aeration pipe (20) is driven to rotate by a drive-type air source mechanism and inputs air, which includes a vertical pipe (53) fixedly connected to the aeration pipe (20), a gear 3 (54) sleeved at the end of the vertical pipe (53), and a motor 1 (61) meshing with the gear 3 (54). The equipment includes a gear four (55), a motor two (56) for driving the gear four (55) to rotate, an L-shaped connector (52), and an air pump (51). The exhaust end of the air pump (51) is connected to the horizontal part of the L-shaped connector (52), and the vertical part of the L-shaped connector (52) is rotatably connected to the lower end of the vertical pipe (53). The connecting shaft (64) is rotatably connected to the side wall of the aerobic tank (13), the vertical pipe (53) is connected to the bottom of the aerobic tank (13), and the lower end of the vertical pipe (53) is connected to the vertical part of the L-shaped connector (52) by means of bearings.

3. The eco-friendly ecological garden landscape system according to claim 1, characterized in that: Both rotating platforms (30) have magnetic strips (33) embedded in their side walls; when both magnetic strips (33) point to the three packing zones (22), the vertical planes where the two magnetic strips (33) are located are coplanar.

4. The eco-friendly landscape system according to claim 1, wherein: The density of the filler is less than that of pure water. The filler includes a plastic ball (70). A spherical cavity (71) is provided in the center of the plastic ball (70). Conical holes (73) are provided in six directions: top, bottom, left, right, front, and back of the plastic ball (70). The small end of each conical hole (73) is connected to the spherical cavity (71). The large end of each conical hole (73) extends to the surface of the plastic ball (70). The inner wall of the conical hole (73) is provided with multiple concentric pleats. The density of the filler two is 1 g / cm 3 The filler two comprises, from outside to inside, porous spherical shell one, porous spherical shell two and porous spherical shell three; the surface of the porous spherical shell one is provided with a plurality of regular hexagonal through holes two; the surface of the porous spherical shell two is provided with a plurality of regular hexagonal through holes three; the surface of the porous spherical shell three is provided with a plurality of regular triangular through holes four; the area ratio of the through holes two to the through holes three is m, 1≤m≤1.6; the area ratio of the through holes three to the through holes four is n, 1≤n≤1.

3. 0.75m=n; The packing material in zone three (22) includes a magnetic plate (221) fixedly installed inside the aerobic tank (13) and multiple elastic ropes (222) located above the magnetic plate (221). The surface of the magnetic plate (221) is provided with multiple through holes (2211). Both ends of the elastic ropes (222) are fixedly connected to the inner wall of the aerobic tank (13). The density of the packing material in zone three is 1.02 g / cm³. 3 The filler three includes a cube-shaped plastic body (223), and a spherical cavity two (2231) is provided in the center of the plastic body (223). Circular holes (2232) are provided in six directions: top, bottom, left, right, front, and back of the plastic body (223), and the circular holes (2232) are all connected to the spherical cavity two (2231).

5. The eco-friendly landscape system according to claim 4, wherein: Both filler 2 and filler 3 are plated with a nickel layer, and a modified polyurea film is coated on the nickel layer surface; The modified polyurea membrane is made by mixing polyurea coating, melamine, and titanate coupling agent in a mass ratio of 100:(7~8):(1.1~1.2).

6. The eco-friendly landscape system according to claim 1, wherein; The sludge in the sedimentation tank is fermented to obtain fermented activated sludge. Then, the fermented activated sludge is returned to the aerobic tank. The ratio of the volume of fermented activated sludge returned to the aerobic tank to the volume of wastewater in the aerobic tank is (0.25~0.3):

1.

7. The eco-friendly ecological garden landscape system according to claim 6, characterized in that, The method for preparing the fermented activated sludge is as follows: Drain the supernatant in the sedimentation tank, control the moisture content of the sludge in the sedimentation tank (14) to 75%~80%, add fermentation material according to the ratio of 2~3 parts of fermentation material for every 10,000 parts of sludge, and introduce compressed air during the feeding process. Cover the opening of the sedimentation tank with a black film and ferment for 5-7 days to obtain fermented activated sludge.

8. The eco-friendly landscape system according to claim 7, wherein The preparation method of the fermented material is as follows: after sterilizing 100 parts of biomass raw materials, add 2.5 to 3.5 parts of Bacillus mycoides, 3 to 5 parts of lactic acid bacteria, and 3 to 5 parts of yeast, and ferment at room temperature for 30 to 40 days to obtain the fermented material; The biomass raw materials are one or more of the following: straw, branches, leaves, hay, sawdust, and fruit shells. The biomass raw materials are crushed into particles of 5-10 mm.

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