A mobile ecological floating bed device

Abstract

This utility model discloses a movable ecological floating bed device. The device includes a walking mechanism, on which an ecological floating bed is mounted; aquatic plants are planted on the ecological floating bed (2); an underwater suspension device (3) is mounted at the bottom of the ecological floating bed (2); the walking mechanism can drive the ecological floating bed to move in the water, so that the floating bed moves the aquatic plants and the underwater suspension device. This utility model uses a walking mechanism to drive the ecological floating bed to move in the water, so that the floating bed moves the aquatic plants and the underwater suspension device, creating a dynamic disturbance environment in the water, improving the water purification effect. Furthermore, the walking mechanism can also adjust the height of the ecological floating bed, ensuring smooth water flow in the river during rainfall and not affecting drainage.

Description

Technical Field

[0001] This utility model relates to the field of ecological restoration technology for rivers and lakes, and more specifically, to a mobile ecological floating bed device. Background Technology

[0002] Rivers are vital hydrological ecosystems, serving functions such as flood control and drainage, climate regulation, ecological balance, and landscape recreation. With urban development and population growth, pollutant emissions have increased dramatically, entering surface water bodies through wastewater discharge and causing water pollution, resulting in rivers becoming black, foul-smelling, or eutrophic. The increasingly deteriorating aquatic ecological environment damages biodiversity, severely impacting the city's image, the lives and health of surrounding residents, and hindering economic development. Therefore, the ecological restoration of polluted river bodies has become a real and urgent ecological and environmental problem that needs to be addressed.

[0003] During non-rainy seasons, urban rivers have poor water flow, large water areas, low dissolved oxygen concentrations, significant spatial and temporal variations in pollution concentrations, simple aquatic ecosystems, small water environmental capacity, and poor ecological self-purification capabilities. During rainy seasons, urban rivers also serve as drainage systems. To improve the river's water environment without affecting drainage, ecological restoration devices, such as floating beds and aeration devices, are often installed in the water near the riverbanks. However, the effectiveness of these devices is limited, and their purification effect on the water in the middle of the river is weak.

[0004] Ecological floating beds use polymer material floats as a carrier and aquatic plants as the main body. The plant roots grow underwater, forming a vast root system that absorbs pollutants from the water. Through the combined action of aquatic plants and aquatic microorganisms, pollutants are adsorbed, transferred, transformed, and degraded. This fully utilizes the ecological niches and nutrient niches of the aquatic body to establish a highly efficient artificial ecosystem, achieving the goals of reducing pollution load, purifying water bodies, restoring the ecological environment, and solving the problem of eutrophication. The more vigorous the plant growth and the more developed the root system, the more significant the purification effect. Ecological floating beds are low-cost, simple to operate and maintain, and have broad application prospects.

[0005] However, traditional ecological floating beds have limited comprehensive purification capabilities. They can remove and repair conventional pollutants in the upper water layer, but cannot effectively treat pollutants or new pollutants in the lower water layer. Furthermore, existing processes suffer from high energy consumption and low efficiency, resulting in poor pollutant remediation effects. Utility Model Content

[0006] To address the aforementioned shortcomings, this utility model provides a mobile ecological floating bed device and an ecological restoration method. It utilizes a solar photovoltaic device as a green energy source to provide electric power. Based on PLC control, the mobile ecological floating bed device and ecological restoration method use a walking mechanism to move the ecological floating bed, synergistically coupling ecological floating bed, iron-carbon micro-electrolysis, and microbial technology. This significantly improves the degradation and restoration efficiency of pollutants in water by aquatic plants and microorganisms, achieving water purification and ecological restoration.

[0007] To achieve the above objectives, this utility model provides a mobile ecological floating bed device, which includes a walking mechanism on which an ecological floating bed is mounted;

[0008] Aquatic plants are planted on the ecological floating bed (2); an underwater suspension device (3) is provided at the bottom of the ecological floating bed (2);

[0009] The aforementioned walking mechanism can drive the ecological floating bed to move in the water, enabling the floating bed to move aquatic plants and underwater suspension devices.

[0010] Furthermore, the walking mechanism (1) includes two parallel bases (11), each base is provided with a hydraulic lifting mechanism (12), and each hydraulic lifting mechanism is provided with a running device (13);

[0011] The hydraulic lifting mechanism (12) includes a hydraulic cylinder bottom fixing seat (121), a hydraulic cylinder body (122), and a top fixing seat (123); the running device (13) includes a track (131), a connecting main beam (132), a connecting secondary beam (133), a traveling wheel (134), and a drive motor (135); the base (11) is provided with a connecting structure for connecting with the hydraulic cylinder bottom fixing seat (121); the top fixing seat (123) is connected to the bottom of the track (131) of the running device (13) through a track connecting fastener, and the running device (13) is driven to lift by the hydraulic lifting mechanism (12);

[0012] An ecological floating bed (2) is installed on the operating device (13), and the driving force provided by the drive motor (135) drives the ecological floating bed (2) to move along the track extension direction.

[0013] Furthermore, the ecological floating bed is provided with a plant planting cavity (24);

[0014] The planting cavity (24) is filled with a soil layer, a zeolite layer, and an iron-carbon filler layer; the soil layer is 10-15cm thick, the zeolite layer is 10-15cm thick, and the iron-carbon mixture layer is 15-20cm thick; aquatic plants are planted in the planting cavity (24), and small holes with a diameter of 3-5mm are evenly opened at the bottom of the planting cavity (24); so that the roots of the aquatic plants can penetrate through the bottom of the planting cavity (24) and extend into the water;

[0015] The iron-carbon filler layer is a mixture of sponge iron and activated carbon particles. The sponge iron powder has a particle size of 2-3 mm, and the activated carbon powder has a particle size of 1-3 mm. The sponge iron powder and activated carbon powder are uniformly mixed at a mass ratio of 1-2:2-3 to obtain a mixed powder, which is then prepared into particles with a particle size of 1-5 mm. The sponge iron and activated carbon form a galvanic cell, which removes heavy metals in the water through oxidation, flocculation, and adsorption via oxidation-reduction reactions.

[0016] Furthermore, the underwater suspension device (3) includes a suspension packing string (31), carbon fiber aquatic plants (32), a microbial agent delivery pipe (33), and a microbial agent dosing device (34); the microbial agent dosing device (34) and the microbial agent delivery pipe (33) are connected, and a controlled solenoid valve is provided on the agent delivery pipe (33); the suspension packing string (31) and the carbon fiber aquatic plants (32) are arranged alternately; the carbon fiber aquatic plants (32) are suspended vertically downward on the agent delivery pipe (33).

[0017] Furthermore, a micro-nano aeration device (4) is provided at the bottom of the ecological floating bed (2); the micro-nano aeration device (4) includes a micro-nano bubble generator (41) provided on the upper part of the ecological floating bed (2), a gas delivery pipe (42) provided at the bottom of the ecological floating bed (2), and a microporous aeration head (43). The micro-nano bubble generator (41) is connected to the gas delivery pipe (42); a controlled solenoid valve is provided on the gas delivery pipe (42), and an aeration hole is also provided on the gas delivery pipe (42). A microporous aeration head (43) is installed at the corresponding aeration hole position.

[0018] Furthermore, the two ends of the connecting main beam (132) are fixed to the two ends of the connecting secondary beam (133) to form the main frame; the connecting main beam (132) is provided with movable walking wheels (134), and the output end of the reduction motor (135) is connected to the walking wheels (134) for transmission.

[0019] Furthermore, the underwater suspension device (3) has a string (31) of suspended packing material consisting of several suspended balls (311) with hollowed-out outer walls connected by nylon plastic ropes. The suspended balls (311) are filled with a mixture of sulfur autotrophic denitrification packing material and iron-based packing material. The denitrification packing material is a mixture of sodium sulfide and persulfate particles with a particle size of 2-5 mm. The iron-based packing material is a mixture of zero-valent iron and activated carbon particles with a particle size of 2-5 mm. The persulfate and zero-valent iron react slowly to generate sulfate free radicals to further remove organic pollutants from the water.

[0020] Furthermore, the ecological floating bed (2) is provided with a photovoltaic zone (21); the photovoltaic zone (21) is provided with a photovoltaic device (211), an equipment zone (212) and a control cabinet (213), the photovoltaic device (211) provides power to the system through solar power generation; the equipment zone (212) is provided with a microbial agent dosing device (34) and a micro-nano bubble generator (41); the control cabinet (213) is provided with a PLC control module.

[0021] Furthermore, the PLC control module includes a data acquisition system, a PLC controller, and an execution module. The data acquisition system includes a conductivity sensor, a turbidity sensor, a dissolved oxygen sensor, a microbial sensor, a COD sensor, an NH3-N sensor, a free radical sensor, a rate sensor, a liquid level sensor, and an A / D converter. The water quality detection sensor is installed at the bottom of the ecological floating bed (2), and the water quality detection information is input to the PLC controller through the A / D converter.

[0022] The PLC controller is connected to the execution module, which includes a hydraulic lifting mechanism (12), a drive motor (135), a microbial agent dosing device (34), a micro-nano bubble generator (41), and a solenoid valve.

[0023] To achieve the above objectives, the present invention provides a mobile ecological floating bed ecological restoration method. The method is based on the aforementioned mobile ecological floating bed device and includes the following steps:

[0024] 1) By turning on the microbial agent dosing device (34), micro-nano bubble generator (41) and solenoid valve on the pipeline through the PLC control module, microbial agents and dissolved oxygen are added to the water body, promoting the enrichment and attachment of dominant bacteria on carbon fiber aquatic plants (32), while enhancing the accumulation of pollutants such as COD, nitrogen and phosphorus, and organic matter in the water body, and improving the ability of microorganisms and aquatic plants to absorb and degrade COD and nitrogen and phosphorus in a synergistic manner.

[0025] 2) The concentrations of turbidity, dissolved oxygen, microorganisms, COD, NH3-N and water flow rate in the water are detected in real time by sensors and transmitted to the PLC controller via A / D converter. When the water quality does not meet the standard and the free radical concentration reaches the set low limit, the packing in the suspended ball (311) is replaced. When the water quality meets the standard, the drive motor (135) of the running device (3) is automatically started by the PLC controller, which drives the walking wheels (134) to move the ecological floating bed (2) along the track (131) to the adjacent water area to continue degrading pollutants. When the pollutant concentration reaches the set low limit, the PLC controller automatically shuts down the microbial agent dosing device (34), the micro-nano bubble generator (41) and the solenoid valve.

[0026] 3) During rainfall, the water level is monitored in real time. When the water level reaches the set high limit, the hydraulic lifting mechanism (12) is automatically started by the PLC controller to control the hydraulic telescopic rod to run synchronously. After the ecological floating bed (2) is raised to the specified height, the hydraulic telescopic rod is fixed to lock the rising height, ensuring the smooth flow of the river and smooth water drainage.

[0027] The technical solution provided by this utility model has the following beneficial effects:

[0028] (1) The device of this utility model includes a walking mechanism, an ecological floating bed, an underwater suspension device and a micro-nano aeration device. The walking mechanism drives the ecological floating bed to move in the water, so that the floating bed drives the aquatic plants and the underwater suspension device to move. The water body is in a dynamic disturbance environment, which improves the water purification effect. In addition, the walking mechanism can also adjust the height of the ecological floating bed. During the rainy season, it can ensure the smooth flow of water in the river and not affect the drainage.

[0029] (2) Pollutants are adsorbed, absorbed and degraded through the synergistic effect of plants and microorganisms. Aquatic plants are planted on the floating bed, and a microbial ecological community is built under the floating bed. Emergent plants with well-developed root systems are selected for aquatic plants. The plant root system becomes a carrier for microbial aggregation, providing sufficient space for the growth and reproduction of microorganisms. At the same time, the root system absorbs and degrades pollutants from the water, increases the contact between plants and microorganisms and nitrogen, phosphorus and organic matter, and improves the water purification efficiency. In addition, the combination of grass, shrubs and aquatic plants improves the ecological environment of the river and provides a good habitat for aquatic animals.

[0030] (3) By synergistically coupling ecological floating bed-iron-carbon micro-electrolysis-microbial technology, the comprehensive purification capacity of the floating bed is enhanced. The floating bed uses iron-carbon particles and sulfur autotrophic denitrification-iron-based filler, which can remove a variety of pollutants such as COD, nitrogen and phosphorus, heavy metals and organic matter. It has multiple purification functions, significantly improves the degradation and remediation efficiency of pollutants in water, and realizes water purification and ecological restoration. Attached Figure Description

[0031] Figure 1 This is a structural diagram of the walking mechanism of this device;

[0032] Figure 2 This is a structural diagram of the transport device of this apparatus;

[0033] Figure 3 This is a structural diagram of the ecological floating bed of this device;

[0034] Figure 4 These are structural diagrams of Embodiments 2 and 3 of this device.

[0035] In the diagram: 1. Walking mechanism; 11. Base; 12. Hydraulic lifting mechanism; 121. Bottom fixing seat of hydraulic cylinder; 122. Hydraulic cylinder body; 123. Top fixing seat; 13. Running device; 131. Track; 132. Connecting main beam; 133. Connecting secondary beam; 134. Walking wheel; 135. Drive motor; 138. Support frame; 2. Ecological floating bed; 21. Photovoltaic area; 211. Photovoltaic device; 212. Equipment area; 213. Control cabinet; 22. Emergent plant area; 23. Grass and shrub area; 24. Planting chamber; 3. Underwater suspension device; 31. Suspended packing string; 311. Suspended ball; 32. Carbon fiber aquatic plants; 33. Microbial agent delivery pipeline; 34. Microbial agent dosing device; 4. Micro-nano aeration device; 41. Micro-nano bubble generator; 42. Gas delivery pipeline; 43. Microporous aeration head. Detailed Implementation

[0036] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0037] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 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 utility model based on the specific circumstances.

[0040] Example 1

[0041] from Figures 1-3 As can be seen, the movable ecological floating bed device of this embodiment includes a walking mechanism (1) and an ecological floating bed (2); the walking mechanism (1) includes a base (11), a hydraulic lifting mechanism (12) and a running device (13); the hydraulic lifting mechanism (12) includes a hydraulic cylinder bottom fixing seat (121), a hydraulic cylinder body (122) and a top fixing seat (123); the running device (13) includes a track (131), a connecting main beam (132), a connecting secondary beam (133), walking wheels (134) and a drive motor (135); the base (11) is a reinforced concrete structure foundation, with pre-reserved bolts. Holes are provided, and steel plates are pre-embedded on the top of the foundation. A connecting structure is provided on the base for connecting with the bottom fixed seat (121) of the hydraulic cylinder. Two or more are provided on one side of the base. The top fixed seat (123) of the hydraulic cylinder is connected to the bottom of the track (131) of the running device (13) through the track connecting fastener. The running device (13) is driven to lift through the hydraulic lifting mechanism (12). An ecological floating bed (2) is provided on the running device (13). The driving force provided by the drive motor (135) drives the ecological floating bed (2) to move along the track laying extension direction. Aquatic plants with well-developed root systems are planted on the ecological floating bed (2).

[0042] The hydraulic lifting mechanism (12) has a power input end and an output end. The power input end is equipped with a hydraulic oil tank, hydraulic pipeline, hydraulic pump and motor. The lifting mechanism enables each hydraulic cylinder to run synchronously through the matching hydraulic station and throttle valve. After starting the hydraulic cylinder, the lifting rod pushes the ecological floating bed to rise or fall to the specified height. By fixing the hydraulic lifting rod, the ecological floating bed can be locked at any height, improving the applicability of the device.

[0043] The connecting main beams (132) of the running device (13) are arranged in groups. The connecting main beams (132) are equipped with walking wheels (134). There are more than two walking wheels (134) on each side. The main beams corresponding to the walking wheels are equipped with drive reduction motors (135). The reduction motors (135) drive the walking wheels (134) to walk along the track (131). The two ends of the connecting main beams (132) are fixed to the two ends of the connecting secondary beams (133) to form the main frame. The main frame is equipped with a support frame (138), and an ecological floating bed (2) is installed on the support frame.

[0044] The ecological floating bed (2) is divided into a photovoltaic zone (21), an emergent plant zone (22), and a grass and shrub zone (23), with the three zones symmetrically distributed. The ecological floating bed (2) is made of engineering plastics or fiberglass. The engineering plastics are made of PPC hydrophilic filler, green plant scouring pad, and polyurethane modified material. The bed made of this engineering plastic has the advantages of high strength, corrosion resistance, climate resistance, large buoyancy, and convenient installation. The ecological floating bed (2) is equipped with a plant planting cavity (24).

[0045] The planting cavity (24) is filled with a soil layer, a zeolite layer and an iron-carbon filler layer; the soil layer is 10-15cm thick, the zeolite layer is 10-15cm thick, and the iron-carbon mixed layer is 15-20cm thick; aquatic plants are planted in the planting cavity (24), and small holes with a diameter of 3-5mm are evenly opened at the bottom of the planting cavity (24) so ​​that the roots of the aquatic plants can penetrate through the bottom of the planting cavity (24) and extend into the water. The plant roots absorb nitrogen and phosphorus from the water to promote plant growth. The more vigorous the growth, the stronger the purification effect. The area around the plant roots is an oxidizing environment, which can become a carrier for microorganisms, thereby increasing the contact between plants and microorganisms and nitrogen, phosphorus and organic matter, and improving the degradation efficiency of pollutants.

[0046] The iron-carbon filler layer consists of mixed particles of sponge iron and activated carbon. The sponge iron powder has a particle size of 2–3 mm, and the activated carbon powder has a particle size of 1–3 mm. The sponge iron powder and activated carbon powder are uniformly mixed at a mass ratio of 1–2:2–3 to obtain a mixed powder, which is then granulated to a particle size of 1–5 mm. The iron-carbon filler is commercially available. The sponge iron and activated carbon form a micro-galvanic cell, which removes heavy metals and other pollutants in water through oxidation-reduction reactions, including oxidation, flocculation, and adsorption. The sponge iron acts as the anode, and the carbon as the cathode. Utilizing the principle of micro-electrolysis, when the filler comes into contact with water, a potential difference is formed between the iron and carbon, generating a current. This current degrades the pollutants by disrupting their molecular structure. Simultaneously, the Fe produced in the reaction… 2+ It continues to undergo oxidation-reduction reactions with pollutants, degrading them into H2O and CO2, thereby further purifying the water.

[0047] The photovoltaic area (21) is equipped with a photovoltaic device (211), an equipment area (212), and a control cabinet (213). The photovoltaic device (211) includes a photovoltaic panel and a photovoltaic panel controller. The photovoltaic panel is connected to the storage battery through the photovoltaic panel controller and provides power to the system through solar power generation. The control cabinet (213) consists of a PLC control module, a control panel, and a wireless remote controller. The PLC control module is connected to the wireless communication module, the control panel, and the wireless remote controller for remote control of the automatic operation of the equipment.

[0048] The PLC control module includes a data acquisition system, a PLC controller, and an execution module. The data acquisition system includes a conductivity sensor, a turbidity sensor, a dissolved oxygen sensor, a microbial sensor, a COD sensor, an NH3-N sensor, a free radical sensor, a rate sensor, a liquid level sensor, and an A / D converter. The water quality detection sensor is installed at the bottom of the ecological floating bed (2), and the water quality detection information is input to the PLC controller through the A / D converter.

[0049] The PLC controller is connected to the execution module, which includes a hydraulic lifting mechanism (12) and a drive motor (135). The PLC control module enables the automated and intelligent operation of the photovoltaic-powered ecological floating bed device.

[0050] Aquatic plants are those with well-developed root systems and strong pollution tolerance, including emergent plants and herbaceous shrubs. Emergent plants include one or more combinations of reeds, cattails, irises, water onions, water celery, pickerelweed, loosestrife, and canna, mainly native plants. The herbaceous shrub area consists of a combination of herbaceous and shrub plants, mainly native plants. Shrubs are preferably paired with flowering plants, including one or more combinations of red photinia, azaleas, winter jasmine, roses, and privet. The bottom layer is paired with herbaceous plants, including one or more combinations of California poppy, iris, achyranthes, philodendron, lotus, bahia, iris, and bermudagrass. A small number of small trees can be appropriately added, preferably one or more combinations of osmanthus, Japanese maple, cherry blossom, and crabapple to form a diverse seasonal landscape, enhance the aesthetic appeal of the river landscape, and restore the aquatic ecological environment.

[0051] Example 2

[0052] from Figures 1-4As can be seen, the mobile ecological floating bed device of this embodiment includes a walking mechanism (1), an ecological floating bed (2), an underwater suspension device (3), and a micro-nano aeration device (4); the walking mechanism (1) includes a base (11), a hydraulic lifting mechanism (12), and a running device (13); the hydraulic lifting mechanism (12) includes a hydraulic cylinder bottom fixing seat (121), a hydraulic cylinder body (122), and a top fixing seat (123); the running device (13) includes a track (131), a connecting main beam (132), a connecting secondary beam (133), walking wheels (134), and a drive motor (135); the base (11) is a reinforced concrete structure foundation, with pre-drilled bolt holes, and the top of the foundation... The base is equipped with a pre-embedded steel plate and a connecting structure for connecting with the bottom fixed seat (121) of the hydraulic cylinder. Two or more fixed seats are provided on one side of the base. The top fixed seat (123) of the hydraulic cylinder is connected to the bottom of the track (131) of the running device (13) through a track connecting fastener. The running device (13) is driven to lift by a hydraulic lifting mechanism (12). An ecological floating bed (2) is provided on the running device (13). The ecological floating bed (2) is driven by the driving force provided by the drive motor (135) to move along the track laying extension direction. Aquatic plants with well-developed root systems are planted on the ecological floating bed (2). An underwater suspension device (3) and a micro-nano aeration device (4) are provided at the bottom of the ecological floating bed (2).

[0053] The underwater suspension device (3) includes a suspension packing string (31), a microbial agent delivery pipe (33), and a microbial agent dosing device (34). The microbial agent dosing device (34) and the agent delivery pipe (33) are connected. The diameter of the agent delivery pipe is 3-6 cm. A solenoid valve is installed on the agent delivery pipe (33). The agent addition flow rate is 0.5-1.0 m3 / h. The added agent is a domesticated and screened indigenous microorganism, including photosynthetic bacteria, nitrifying bacteria, Bacillus subtilis, actinomycetes, or fungi. The agent is delivered to the carbon fiber aquatic plant through the delivery pipe. Initial biofilm formation occurs after 3-5 days. After 10 days, the indigenous microbial aggregate reaches a stable state. The microorganisms absorb and degrade pollutants, ultimately forming various metabolic products: H2O, CO2, SO4. 2+ The removal rates of heavy metals such as copper and lead in the water were 80-85%, COD removal rate was 50-85%, total nitrogen removal rate was 50-65%, and total phosphorus removal rate was 40-60%. The concentrations of dissolved oxygen and microorganisms were high around aquatic plants.

[0054] The suspended packing string (31) is made of several suspended balls (311) strung together with nylon plastic rope. The suspended balls (311) are filled with mixed packing particles of sulfur autotrophic denitrification packing and iron-based packing. The denitrification packing is a mixture of sodium sulfide and persulfate with a particle size of 2-5 mm. The iron-based packing is a mixture of zero-valent iron and activated carbon with a particle size of 2-5 mm. Persulfate and zero-valent iron react slowly to generate sulfate free radicals, which can further remove organic pollutants in the water. The packing particles are made of powder, with a large specific surface area, small particle radius, and light weight. The large specific surface area provides ample growth space for microorganisms, which is conducive to the aggregation of microorganisms, thereby improving the pollutant removal efficiency and realizing water purification. The concentration of microorganisms and free radicals around the suspended balls is high, the bacterial community structure is complex, and it is rich in various electrogenic microbial species, which improves the electron transfer rate and promotes the generation of extracellular polymers by microorganism metabolism. The suspended balls (311) are porous rotating spherical structures with hollowed-out outer walls, making it convenient to replace the packing and allowing for repeated recycling.

[0055] The micro-nano aeration device (4) includes a micro-nano bubble generator (41) installed on the upper part of the ecological floating bed (2), a gas delivery pipe (42) installed at the bottom of the ecological floating bed (2), and a microporous aeration head (43). The micro-nano bubble generator (41) is connected to the gas delivery pipe (42), and the diameter of the gas delivery pipe is 3 to 6 cm. A solenoid valve is installed on the gas delivery pipe (42), and aeration holes are also provided on the gas delivery pipe (42). A microporous aeration head (43) is installed at the corresponding aeration hole position. The dissolved oxygen in the water is increased by aeration, which promotes the nitrification of NH3-N by nitrifying bacteria.

[0056] The photovoltaic area (21) is equipped with a photovoltaic device (211), an equipment area (212), and a control cabinet (213). The photovoltaic device (211) includes a photovoltaic panel and a photovoltaic panel controller. The photovoltaic panel is connected to the storage battery through the photovoltaic panel controller and provides power to the system through solar power generation. The equipment area (212) houses a microbial agent dosing device (34) and a micro-nano bubble generator (41). The control cabinet (213) consists of a PLC control module, a control panel, and a wireless remote controller. The PLC control module is connected to the wireless communication module, the control panel, and the wireless remote controller for remote control of the automatic operation of the equipment.

[0057] The PLC control module includes a data acquisition system, a PLC controller, and an execution module. The data acquisition system includes a conductivity sensor, a turbidity sensor, a dissolved oxygen sensor, a microbial sensor, a COD sensor, an NH3-N sensor, a free radical sensor, a rate sensor, a liquid level sensor, and an A / D converter. The water quality detection sensor is installed at the bottom of the ecological floating bed (2), and the water quality detection information is input to the PLC controller through the A / D converter.

[0058] The PLC controller is connected to the execution module, which includes a hydraulic lifting mechanism (12), a drive motor (135), a microbial agent dosing device (34), a micro-nano bubble generator (41), and a solenoid valve. The PLC control module completes the automated and intelligent operation of the photovoltaic-powered ecological floating bed device. The PLC controller is connected to the management computer through an RS485 communication interface. The PLC controller is also connected to a human-machine dialogue device through RS485 for human-machine interactive dialogue to process water quality detection input and output information.

[0059] Example 3

[0060] from Figure 4 It can be seen that the underwater suspension device (3) includes a suspension packing string (31), carbon fiber aquatic plants (32), a microbial agent delivery pipe (33), and a microbial agent dosing device (34); the microbial agent dosing device (34) and the agent delivery pipe (33) are connected, and a solenoid valve is installed on the agent delivery pipe (33); the suspension packing string (31) and the carbon fiber aquatic plants (32) are arranged alternately; the carbon fiber aquatic plants (32) are suspended on the agent delivery pipe (33), and several discharge holes are provided on the agent delivery pipe, which are connected to the feed inlets of each carbon fiber aquatic plant; a weight is suspended at the bottom of the carbon fiber aquatic plants to make the biological packing extend vertically.

[0061] The suspended packing string (31) is made of several suspended balls (311) strung together with nylon plastic rope. The suspended balls (311) are filled with mixed packing particles of sulfur autotrophic denitrification packing and iron-based packing. The denitrification packing is a mixture of sodium sulfide and persulfate with a particle size of 2-5 mm. The iron-based packing is a mixture of zero-valent iron and activated carbon with a particle size of 2-5 mm. The sulfur autotrophic denitrification packing uses sulfur as an electron donor and nitrate nitrogen as an electron acceptor. It removes nitrogen through oxidation-reduction reaction by denitrifying bacteria. By increasing dissolved oxygen in the water through aeration, an aerobic environment is formed around the carbon fiber aquatic plants (32), which promotes nitrification bacteria to degrade NH3-N to form nitrate nitrogen. Through the synergistic effect of nitrification and denitrification, the removal efficiency of NH3-N and total nitrogen is improved.

[0062] Example 4

[0063] The mobile ecological floating bed ecological restoration method of this utility model is implemented based on the above embodiments, and its principle is as follows:

[0064] First, the microbial agent dosing device (34), micro-nano bubble generator (41) and solenoid valve on the pipeline are turned on by the PLC control module to replenish the water with microbial agents and dissolved oxygen, promote the enrichment and attachment of dominant bacteria on plant root groups and suspended balls (311), and enhance the accumulation of pollutants such as COD, nitrogen and phosphorus, and organic matter in the water, thereby improving the ability of microorganisms and aquatic plants to absorb and degrade COD and nitrogen and phosphorus in a synergistic manner.

[0065] Secondly, the concentrations of turbidity, dissolved oxygen, microorganisms, COD, NH3-N, free radicals, and water flow rate in the water body are detected in real time and transmitted to the PLC controller via an A / D converter. When the water quality does not meet the standards and the free radical concentration reaches the set low limit, the packing material in the suspended ball (311) is replaced. When the water quality meets the standards, the drive motor (135) of the running device (3) is automatically started by the PLC controller, driving the walking wheels (134) to move the ecological floating bed (2) along the track (131) to the adjacent water area to continue degrading pollutants. When the pollutant concentration reaches the set low limit, the PLC controller automatically shuts down the microbial agent dosing device (34), the micro-nano bubble generator (41), and the solenoid valve.

[0066] Finally, the water level is monitored in real time during rainfall. When the water level reaches the set high limit, the hydraulic lifting mechanism (12) is automatically started by the PLC controller to control the hydraulic lifting rod to run synchronously. After the ecological floating bed (2) is raised to the specified height, the hydraulic lifting rod is fixed to lock the rising height, ensuring the smooth flow of the river and smooth water drainage.

[0067] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A mobile ecological floating bed apparatus, characterized in that, The device includes a walking mechanism, on which an ecological floating bed is installed; Aquatic plants are planted on the ecological floating bed (2); an underwater suspension device (3) is provided at the bottom of the ecological floating bed (2); The aforementioned walking mechanism can drive the ecological floating bed to move in the water, enabling the floating bed to move aquatic plants and underwater suspension devices.

2. A mobile ecological floating bed apparatus as claimed in claim 1, characterized in that, The walking mechanism (1) includes two parallel bases (11), each base is provided with a hydraulic lifting mechanism (12), and each hydraulic lifting mechanism is provided with a running device (13). The hydraulic lifting mechanism (12) includes a hydraulic cylinder bottom fixing seat (121), a hydraulic cylinder body (122), and a top fixing seat (123); the running device (13) includes a track (131), a connecting main beam (132), a connecting secondary beam (133), a traveling wheel (134), and a drive motor (135); the base (11) is provided with a connecting structure for connecting with the hydraulic cylinder bottom fixing seat (121); the top fixing seat (123) is connected to the bottom of the track (131) of the running device (13) through a track connecting fastener, and the running device (13) is driven to lift through the hydraulic lifting mechanism (12); An ecological floating bed (2) is installed on the operating device (13), and the driving force provided by the drive motor (135) drives the ecological floating bed (2) to move along the track extension direction.

3. The mobile ecological floating bed device of claim 1, wherein, The ecological floating bed is equipped with a plant planting cavity (24). The planting cavity (24) is filled with a soil layer, a zeolite layer and an iron-carbon filler layer; the soil layer is 10-15cm thick, the zeolite layer is 10-15cm thick, and the iron-carbon filler layer is 15-20cm thick; aquatic plants are planted in the planting cavity (24), and small holes with a diameter of 3-5mm are evenly opened at the bottom of the planting cavity (24); so that the roots of the aquatic plants can penetrate through the bottom of the planting cavity (24) and extend into the water; The iron-carbon filler layer is a mixture of sponge iron and activated carbon particles. The sponge iron powder has a particle size of 2-3 mm, and the activated carbon powder has a particle size of 1-3 mm. The sponge iron powder and activated carbon powder are uniformly mixed at a mass ratio of 1-2:2-3 to obtain a mixed powder, which is then prepared into particles with a particle size of 1-5 mm. The sponge iron and activated carbon form a galvanic cell, which removes heavy metals in the water through oxidation, flocculation, and adsorption via oxidation-reduction reactions.

4. A mobile ecological floating bed apparatus as defined in claim 1, wherein, The underwater suspension device (3) includes a suspension packing string (31), carbon fiber aquatic plants (32), a microbial agent delivery pipe (33), and a microbial agent dosing device (34); the microbial agent dosing device (34) and the microbial agent delivery pipe (33) are connected, and a controlled solenoid valve is provided on the agent delivery pipe (33); the suspension packing string (31) and the carbon fiber aquatic plants (32) are arranged alternately; the carbon fiber aquatic plants (32) are suspended vertically downward on the agent delivery pipe (33).

5. A mobile ecological floating bed apparatus as defined in claim 1, wherein, The bottom of the ecological floating bed (2) is provided with a micro-nano aeration device (4); the micro-nano aeration device (4) includes a micro-nano bubble generator (41) provided on the upper part of the ecological floating bed (2), a gas delivery pipe (42) provided on the bottom of the ecological floating bed (2) and a microporous aeration head (43). The micro-nano bubble generator (41) is connected to the gas delivery pipe (42); a controlled solenoid valve is provided on the gas delivery pipe (42), and an aeration hole is also provided on the gas delivery pipe (42). A microporous aeration head (43) is installed at the corresponding aeration hole position.

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