Treatment system and method suitable for landscape water

Abstract

The invention relates to a treatment system and method suitable for landscape water, and belongs to the field of biotechnology engineering application. The system adopts an annular cylindrical structure form and comprises a physical treatment module, an adsorption treatment module, a biological treatment module, a disinfection aeration module, a water quality monitoring module and a control and power system module, wherein the physical treatment module, the biological treatment module and the disinfection aeration module are arranged in an outer ring cylinder, the adsorption treatment module is arranged in an inner ring cylinder, and the control and power system module is arranged at the top of the ring cylinder; landscape water sequentially flows through the physical treatment module, the adsorption treatment module, the biological treatment module and the disinfection aeration module and then is discharged until the water quality of the discharged water is qualified. The system solves the problems of low treatment efficiency, complex operation, high maintenance cost and the like in the prior art through the synergistic effect of physical filtration, adsorption dephosphorization and denitrification, bioremediation and intelligent regulation and control, and realizes long-term stability of water quality and ecological remediation.

Description

Technical Field

[0001] The present invention belongs to the field of biotechnological engineering applications, and particularly relates to a treatment system and method suitable for landscape water. Background Art

[0002] Landscape water bodies widely exist in places such as parks, urban green spaces, and residential communities, and are an important part of the modern urban ecological environment. Landscape water not only has the function of beautifying the environment, but also can regulate the climate, alleviate the urban heat island effect, and provide residents with a comfortable leisure and entertainment space. However, affected by both human activities and the natural environment, landscape water bodies face various water quality problems: (1) Rainwater runoff will bring external pollutants such as sediment, garbage, and chemical substances into the landscape water body, making it vulnerable to suspended particles, heavy metals, and organic pollutants; (2) Excessive nutrients such as nitrogen and phosphorus will cause eutrophication of the landscape water body, leading to excessive algal growth and even the occurrence of cyanobacterial blooms; (3) The fluidity of the landscape water body is relatively weak, and its self-purification ability is insufficient, which prolongs the retention time of pollutants and further exacerbates the water quality problem.

[0003] Existing landscape water treatment technologies mainly adopt physical, chemical, and biological methods, either used alone or in combination, but there are still many deficiencies in actual operation. On the one hand, single treatment technologies are difficult to effectively deal with complex pollution types, and the treatment efficiency is low; on the other hand, traditional systems require frequent manual operations, have a low degree of automation, are complex in operation, and have high maintenance costs. Therefore, in view of the water quality problems of landscape water bodies, it is urgent to develop a comprehensive treatment system that integrates high efficiency, environmental protection, and easy maintenance to achieve long-term water quality improvement and ecological environment restoration. Summary of the Invention

[0004] The object of the present invention is to provide a treatment system and method suitable for landscape water. Through the synergistic effects of physical filtration, adsorption for phosphorus and nitrogen removal, biological remediation, and intelligent control, it solves the problems of low treatment efficiency, complex operation, and high maintenance costs in the prior art, and realizes long-term water quality stability and ecological restoration. This system is a comprehensive treatment system that integrates high efficiency, environmental protection, and easy maintenance, and is particularly suitable for the comprehensive treatment of eutrophic polluted water bodies containing ammonia nitrogen, phosphates, etc.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A treatment system applicable to landscape water. The system adopts a ring-columnar structure form and includes a physical treatment module, an adsorption treatment module, a biological treatment module, a disinfection and aeration module, a water quality monitoring module, and a control and power system module. Among them, the physical treatment module, the biological treatment module, and the disinfection and aeration module are arranged on the outer ring column, the adsorption treatment module is located in the inner ring column, and the control and power system module is located at the top of the ring column. The landscape water flows through the physical treatment module, the adsorption treatment module, the biological treatment module, and the disinfection and aeration module in sequence until the effluent water quality is qualified and then flows out.

[0006] Furthermore, the physical treatment module is provided with a total water inlet, and a coarse grille plate, a fine grille plate, a water inlet quality sensor, and an adsorption treatment module water inlet are arranged in sequence along the water flow direction.

[0007] Furthermore, the coarse grille plate and the fine grille plate are arranged vertically in sequence along the water flow direction. The coarse grille plate adopts a distributed type, with a grille mesh on the upper part for intercepting larger sundries in the influent water, and an impermeable solid plate on the lower part for accumulating the precipitation of heavy sediments in the water for convenient later cleaning. The fine grille plate adopts an integral grille mesh for further intercepting sundries in the influent water, reducing the impurities entering the subsequent treatment module, reducing the load on the subsequent treatment, and avoiding blockage.

[0008] Furthermore, the adsorption treatment module includes a detachable adsorption box and a central turntable. The central turntable is arranged at the center position of the inner ring column, and a card slot for placing the adsorption box is arranged on the outer circumference of the turntable for fixing the adsorption box. The detachable adsorption boxes are arranged annularly and evenly along the central turntable.

[0009] Furthermore, the adsorption box includes a box body, a movable cover plate, a vertical card slot, an impermeable plate slot, an impermeable plate, bottom pulleys, a water isolation strip, adsorption fillers, and an adsorption treatment module water outlet. The box body is made of stainless steel and has a stainless steel mesh surface along the water flow direction. The movable cover plate is arranged on the top of the box body. The vertical card slot is arranged on the side close to the central turntable and is used in cooperation with the card slot to fix the adsorption box body. The impermeable plate slot is arranged outside the box body on the water outlet side of the water flow, and an impermeable plate is inserted into the box body through the impermeable plate slot, and other adsorption box bodies do not insert the impermeable plate, so that the water entering the adsorption treatment module flows counterclockwise and enters the biological treatment module from the adsorption treatment module water outlet. The bottom pulleys are arranged on both sides of the bottom of the box body, and inner sliding rails and outer sliding rails are arranged at the bottom of the pulleys for reducing the sliding resistance when the central turntable rotates and stabilizing the sliding of the adsorption box body. The water isolation strip is arranged vertically on the side of the box body close to the outer ring for keeping the box body close to the outer ring side to avoid water overflowing from the gap.

[0010] Furthermore, the adsorption fillers are selected as modified zeolite and iron-based adsorbent fillers and are filled in different adsorption box bodies at intervals.

[0011] Further, the biological treatment module 3 is arranged in a ditch along the outer ring cylinder, and an egg gravel layer, a ceramsite layer, a soil layer and aquatic plants are filled in sequence from bottom to top.

[0012] Further, the disinfection aeration module includes a disinfection aeration module water inlet, an aeration head, an ultraviolet disinfection lamp, an effluent water quality sensor, a total water outlet, and an effluent water level sensor. The aeration head is arranged at the bottom of the disinfection aeration module pool body to increase the oxygen content in the water; the ultraviolet disinfection lamp is arranged in the center of the disinfection aeration module pool body, and the water flow is irradiated by the ultraviolet disinfection lamp to destroy the microbial DNA and achieve the sterilization effect; the total water outlet is arranged on one side of the outer ring cylinder of the disinfection aeration module to discharge the treated water to the outside.

[0013] Further, the water quality monitoring module is an influent water quality sensor, an influent water level sensor arranged in the physical treatment module, an effluent water quality sensor and an effluent water level sensor arranged in the disinfection aeration treatment module.

[0014] A treatment method applicable to landscape water includes the following steps: (1) Startup stage Turn on the water quality monitoring module, and obtain the initial pollution index of the water body and the effluent water quality situation in the system startup stage through the influent water quality sensor and the effluent water quality sensor; gradually adjust the operating parameters of the physical treatment module, the adsorption treatment module, the biological treatment module, the disinfection aeration module, the water quality monitoring module, and the control and power system module according to the monitoring results. (2) Operation stage 1. Physical treatment module The external landscape water enters the physical treatment module on the outer ring of the annular cylinder through the total water inlet, and the water to be treated passes through the coarse grille and the fine grille in sequence to remove the floating substances, large particulate matters and suspended particles in the water, so as to improve the water transparency and provide relatively clean water quality for subsequent treatment. 2. Adsorption treatment module The water flow flows into the adsorption treatment module on the inner ring of the annular cylinder through the outlet of the physical treatment module. The landscape water passes through the adsorption boxes filled with modified zeolite and iron-based adsorbent in sequence in the adsorption treatment module in the counterclockwise direction. The modified zeolite adsorption box and the iron-based adsorbent adsorption box respectively adsorb ammonia nitrogen and phosphate in the landscape water with water to reduce water eutrophication. 3. Biological treatment module The landscape water treated by the adsorption treatment module on the inner ring of the annular cylinder flows into the ecological treatment module on the outer ring of the annular cylinder through the water inlet of the ecological treatment module. The ecological treatment module is arranged in a ditch along the outer ring cylinder. The biological treatment module is filled with an egg gravel layer, a ceramsite layer, a soil layer and aquatic plants in sequence from bottom to top. The landscape water flows through the aquatic plant area with developed roots in the outer ring ditch of the biological treatment module to further remove nitrogen and phosphorus in the water body. 4. Disinfection and Aeration Treatment Module After the landscape water passes through the treatment port of the ecological treatment module, it flows into the disinfection and aeration module through the water inlet of the disinfection and aeration module on the outer ring of the annular column. By aeration, the dissolved oxygen concentration in the water body is increased, and the radiation of the ultraviolet disinfection lamp destroys the microbial DNA, achieving the bactericidal effect and further treating the landscape water; 5. Control and Power System Module The control and power system module is arranged above the top cover plate of the disinfection and aeration treatment module. Through the control panel, the influent water quality and the water level in the system can be viewed in real time. The electromagnetic valves at the water inlet and outlet can be operated through the control panel to adjust the water inflow and outflow, the residence time of landscape water treatment, the aeration volume, and the rotation of the motor of the central turntable of the adsorption treatment module, dynamically adjusting the operating parameters of each module. A photovoltaic panel is set on the top of the adsorption treatment module. On the one hand, it can prevent external sundries from entering the adsorption treatment module and affecting the system operation. On the other hand, it can convert electrical energy and store it in the energy storage battery to supply power for the power operation of the system, providing power support for the electromagnetic water volume valve, water quality sensor, water level sensor, motor, aerator, ultraviolet lamp, and control system; (3)Maintenance Stage 1. Regularly clean the sundries and sediments intercepted in the physical treatment module to prevent impurity accumulation; 2. Regularly check the influent and effluent water quality. After the adsorbent is used for a long time, it will reach the adsorption saturation state. When it is found that the effluent water quality deteriorates, the replacement work of a single adsorption box can be started. When replacing a single adsorption box, the electromagnetic water volume valves at the water inlet and outlet will be closed through the control panel, the cover plate of the adsorption treatment module will be opened, the impermeable plate clamped in the first adsorption box body on the left horizontally will be taken out and inserted into the impermeable plate groove of the second adsorption box in the counterclockwise direction. The first adsorption box body that has been saturated with adsorption will be taken out, and a new box body filled with the same adsorption filler will be put in. Through the control panel, the motor is operated to rotate the central turntable clockwise. Driven by the central turntable, the adsorption box body slides along the inner rail and the outer rail respectively through the bottom pulley. After the second adsorption box is rotated to the left horizontal position, it will stop automatically, and the cover plate of the adsorption treatment module will be covered. Through this method, the adsorption effect of each adsorption box body in the adsorption treatment module can be maximized in turn, avoiding the waste of the adsorbent; 3. Check the health status of the plants in the ecological treatment module. The ecological treatment module provides sufficient time and space for the plant roots to fully contact the pollutants in the water by controlling the flow rate and direction of the water flow appropriately, increasing the water purification efficiency. The growth of the plants in the ecological treatment module needs to be regularly trimmed and managed to maintain the vitality and adsorption capacity of the roots; the water flow in the ditch also needs to be kept unobstructed to avoid the excessive growth of plant roots affecting the water flow; 4. Take out the regularly replaced saturated adsorption box for regeneration to maintain the efficiency of nitrogen removal and phosphorus removal; the regenerated adsorbent can be put back into use, reducing the frequency of adsorbent replacement and saving operating costs.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts an efficient comprehensive treatment method, using physical, adsorption, biological and other means to work together. It is a comprehensive treatment system that integrates high efficiency, environmental protection and easy maintenance. It has four technical advantages: (1) A wide range of applications. For different types of wastewater pollutants, adsorbent materials with characteristic adsorption properties can be selected for treatment, so that the treatment system is not limited to treating landscape water; (2) The treatment effect is significant. Adsorbents are used to specifically remove ammonia nitrogen and phosphate, significantly reducing the risk of eutrophication of water bodies; (3) Intelligent management. Through monitoring and dynamic regulation, unmanned operation, remote operation and monitoring can be achieved, reducing manual maintenance and operating costs and improving emergency treatment efficiency; (4) Concise and easy to promote. The system structure is simple and modular design is adopted. The adsorbent utilization rate is high and can be recycled, which is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of a treatment system suitable for landscape water of the present invention; Figure 2 It is a schematic diagram of the internal structure of a treatment system suitable for landscape water according to the present invention; Figure 3 It is a schematic diagram of the top arrangement of a treatment system suitable for landscape water of the present invention; Figure 4 This is a schematic diagram of the structure of the physical processing module of the present invention; Figure 5 This is a schematic diagram of the coarse grid and fine grid structure of the physical processing module of the present invention; Figure 6 This is a schematic diagram of the structure of the adsorption treatment module of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the adsorption treatment module of the present invention; Figure 8 It is a schematic diagram of the structure of the adsorption box of the present invention; Figure 9 This is a schematic diagram of the structure of the ecological treatment module of the present invention; Figure 10 This is a schematic diagram of the structure of the disinfection aeration module of the present invention; In the figure, 1 is the physical treatment module, 2 is the adsorption treatment module, 3 is the biological treatment module, 3-1 is the cobblestone layer, 3-2 is the ceramsite layer, 3-3 is the soil layer, 3-4 is the aquatic plant, 4 is the disinfection and aeration module, 4-1 is the inlet of the disinfection and aeration module, 4-2 is the aeration head, 4-3 is the ultraviolet disinfection lamp, 4-4 is the effluent water quality sensor, 4-5 is the total outlet, 4-6 is the effluent water level sensor, 4-7 is the maintenance port, 5 is the water quality monitoring module, 6 is the control and power system module, 6-1 is the monitor, 6-2 is the photovoltaic panel, 7 is the total inlet, 8 is the coarse grid plate, 8-1 is the grid mesh, 8-2 is the solid plate, 9 is the fine grid plate, 10 is the influent water quality sensor, 11 is the inlet of the adsorption treatment module, 12 is the influent water level sensor, 13 is the adsorption tank, 13-1 is the tank body, 13-2 is the movable cover plate, 13-3 is the vertical card slot, 13-4 is the impervious plate slot, 13-5 is the impervious plate, 13-6 is the bottom pulley, 13-7 is the water barrier strip, 13-8 is the outlet of the adsorption treatment module, 13-9 is the inner slide rail, 13-10 is the outer slide rail, 14 is the central turntable, 15 is the card slot, 16 is the motor. Detailed implementation mode

[0017] The technical solutions and effects of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto. Embodiment 1

[0018] The present invention proposes a treatment system and method suitable for landscape water. The system realizes long-term stable water quality and improved ecological environment through comprehensive means such as physical, adsorption, biological, and disinfection aeration.

[0019] As Figure 1-3 shown, a treatment system suitable for landscape water, the system adopts a ring-columnar structure form, including a physical treatment module 1, an adsorption treatment module 2, a biological treatment module 3, a disinfection and aeration module 4, a water quality monitoring module 5, and a control and power system module 6; wherein, the physical treatment module 1, the biological treatment module 3, and the disinfection and aeration module 4 are arranged on the outer ring column, the adsorption treatment module 2 is located on the inner ring column, and the control and power system module 6 is located on the top of the ring column; the landscape water flows through the physical treatment module 1, the adsorption treatment module 2, the biological treatment module 3, and the disinfection and aeration module 4 in sequence until the effluent water quality is qualified and then discharged.

[0020] As Figure 2-5 shown, the physical treatment module 1 is provided with a total inlet 7, and a coarse grid plate 8, a fine grid plate 9, an influent water quality sensor 10, and an inlet of the adsorption treatment module 11 are arranged in sequence along the water flow direction. The physical treatment module 1 removes floating substances, large particulate substances, and suspended particles in the water to improve the water transparency and provide relatively clean water quality for subsequent treatment.

[0021] Among them, the total water inlet 7 is located at the upper part on the outer side of the annular column, and is used to introduce the external landscape water to be treated into the treatment system. An electromagnetic water volume regulating valve is arranged at the total water inlet 7 to control the water volume entering the system.

[0022] Furthermore, the coarse grille plate 8 and the fine grille plate 9 are arranged vertically in sequence along the water flow direction. The coarse grille plate 8 adopts a distributed type, with a grille mesh 8-1 at the upper part for intercepting larger sundries in the influent water, and an impermeable solid plate 8-2 at the lower part for accumulating the sediment of heavy sediment in the water for convenient later cleaning. Further, the aperture size of the grille mesh is 0.3 - 0.5 μm. As a specific implementation manner, the height ratio of the grille mesh to the impermeable solid plate is 2∶1. The fine grille plate 9 adopts an integral grille mesh for further intercepting sundries in the influent water, reducing the impurities entering the subsequent treatment module, reducing the load on the subsequent treatment, and avoiding blockage. The aperture size of the fine grille mesh is 0.1 - 0.3 μm.

[0023] Furthermore, a water inlet water level sensor 12 and a maintenance cover plate are provided at the top of the physical treatment module 1, and the maintenance cover plate is used to regularly remove the sundries deposited in the physical module. The water inlet water level sensor 12 and the water inlet water quality sensor 10 are connected to the control and power system module 6.

[0024] The water inlet 11 of the adsorption treatment module is located on the side of the annular inner column, and is used to flow the water in the physical treatment module 1 into the adsorption treatment module 2. The adsorption treatment module 2 can efficiently remove ammonia nitrogen and phosphate in the water body, reducing water eutrophication. As Figure 6-8 shown, the adsorption treatment module 2 includes a detachable adsorption box 13 and a central turntable 14. The central turntable 14 is arranged at the center position of the inner column. A card slot 15 for placing the adsorption box is arranged around the outer side of the turntable for fixing the adsorption box 13. The detachable adsorption boxes 13 are arranged annularly and evenly along the central turntable 14. A motor 16 is arranged at the top of the central turntable 14 to provide power for the rotation of the turntable, and the motor 16 is connected to the control and power system module 6.

[0025] Further, the adsorption tank 13 includes a tank body 13-1, a movable cover plate 13-2, a vertical card slot 13-3, an impervious plate slot 13-4, an impervious plate 13-5, bottom pulleys 13-6, a water barrier strip 13-7, adsorption fillers, and an adsorption treatment module water outlet 13-8. The tank body 13-1 of the adsorption tank adopts a vertical structure to improve the contact efficiency of water flow and increase the adsorption effect. The tank body 13-1 is made of stainless steel, and a stainless steel mesh surface is adopted along the water flow direction, which is easy to increase water permeability and reduce the weight of the tank body. The movable cover plate 13-2 is arranged on the top of the tank body 13-1 to facilitate the replacement of the adsorption fillers. The vertical card slot 13-3 is arranged on the side close to the central turntable 14 and cooperates with the card slot 15 to fix the adsorption tank body 13-1. The impervious plate slot 13-4 is arranged outside the tank body 13-1 on the water outlet side of the water flow, and the impervious plate 13-5 is clamped into the impervious plate slot 13-4 in the left horizontal tank body 13-1, and the impervious plate 13-5 is not inserted into other adsorption tank bodies, so that the water entering the adsorption treatment module 2 flows counterclockwise along the lower part of the left horizontal adsorption tank body 13-1 and enters the biological treatment module 3 from above the left horizontal adsorption tank body 13-1 through the adsorption treatment module water outlet 13-8. The left, lower, etc. orientations in this paragraph are the up, down, left, and right orientations Figure 2 as the standard. The bottom pulleys 13-6 are arranged on both sides of the bottom of the tank body 13-1, and inner slide rails 13-9 and outer slide rails 13-10 are provided at the bottom of the pulleys to reduce the sliding resistance when the central turntable 14 rotates and stabilize the sliding of the adsorption tank body 13-1. The water barrier strip 13-7 is arranged vertically on the outer ring side of the tank body 13-1 to keep the tank body 13-1 close to the outer ring side and prevent water from overflowing from the gap.

[0026] The adsorption fillers are used for treating nitrogen and phosphorus pollutants in landscape water in the present invention. Modified zeolite and iron-based adsorbent fillers are preferably selected for adsorption, and the specific models are not limited. The modified zeolite and iron-based adsorbent fillers for wastewater can be used in the present invention. If other wastewater, appropriate other adsorption materials can be replaced for adsorption treatment, and the flexible adsorption materials can improve the application range of the present invention. The modified zeolite and iron-based adsorbent are filled in different adsorption tank bodies in an interval manner. The modified zeolite is used for mainly adsorbing ammonia nitrogen in water, and the iron-based adsorbent is used for mainly adsorbing phosphate in water.

[0027] As Figure 9 shown, the biological treatment module 3 is arranged in a ditch along the outer ring column to increase the contact time of water flow with plant roots. The biological treatment module 3 can make full use of the adsorption capacity of plants to further remove nitrogen and phosphorus pollutants in water.

[0028] Further, the biological treatment module 3 is filled with a pebble layer 3-1, a ceramsite layer 3-2, a soil layer 3-3, and aquatic plants 3-4 from bottom to top in sequence. Even further, the volume ratio of the pebble layer 3-1, the ceramsite layer 3-2, and the soil layer 3-3 is preferably 3:2:1. The specific conditions of the pebble layer 3-1, the ceramsite layer 3-2, and the soil layer 3-3 are not the innovative means of the present invention and can be specifically adopted from those commonly used in the prior art. The aquatic plants 3-4 should preferably be plants that are adapted to the aquatic environment, resistant to pollution, and have well-developed roots to enhance the removal effect of nitrogen and phosphorus in the water body. Cattail, water hyacinth, yellow flag iris, etc. or local suitable aquatic plants can be used.

[0029] The disinfection aeration module 4 is used to increase the dissolved oxygen concentration in the water body and kill the pathogenic microorganisms in the water body. As Figure 2 and 10 shown, the disinfection aeration module 4 includes a disinfection aeration module water inlet 4-1, an aeration head 4-2, an ultraviolet disinfection lamp 4-3, an effluent water quality sensor 4-4, a total water outlet 4-5, and an effluent water level sensor 4-6. The aeration head 4-2 is arranged at the bottom of the pool body of the disinfection aeration module 4 to increase the oxygen content in the water; the ultraviolet disinfection lamp 4-3 is arranged in the center of the pool body of the disinfection aeration module 4, and the water flow is irradiated by the ultraviolet disinfection lamp 4-3 to damage the microbial DNA to achieve the sterilization effect; the total water outlet 4-5 is arranged on one side of the outer ring cylinder of the disinfection aeration module 4 to discharge the treated water to the outside. The effluent water quality sensor 4-4 and the effluent water level sensor 4-6 are connected to the control and power system module 6.

[0030] Further, an electromagnetic water volume regulating valve is arranged at the total water outlet 4-5 to control the water volume in the system.

[0031] A fixed cover plate and a maintenance port 4-7 are provided at the top of the disinfection aeration module 4. The upper side of the fixed cover plate is used to place the control and power system module 6, as Figure 1 shown. The control and power system module 6 includes a control panel, a networking system, a monitor 6-1, a photovoltaic panel 6-2, a storage battery, a motor 16, an electromagnetic water volume regulating valve, an aeration pump, and an ultraviolet disinfection lamp 4-3.

[0032] Further, the control panel is used to display the water quality of the influent and effluent in real time, control the rotation of the central turntable of the adsorption treatment module, and control the oxygenation amount of the aeration pump.

[0033] The networking system is connected to the maintenance and management department of the treatment system, and feeds back the system operation situation to the management department in real time, and gives early warnings in a timely manner according to the water quality monitoring situation, providing information support for the system maintenance and repair. At the same time, the maintenance and management department has remote control authority and can remotely control and operate the control panel to improve the emergency maintenance efficiency and reduce the maintenance cost.

[0034] The monitor 6-1 is set on the top of the disinfection aeration module 4 and is used for the maintenance management department to remotely view the system operation, facilitating the maintenance and management of the system.

[0035] The photovoltaic panel 6-2 is arranged along the top of the adsorption treatment module 2, converting light energy into electrical energy and storing it in the storage battery to provide a power source for the control and power system module.

[0036] The motor 16 is supplied with power by the storage battery and is rotationally adjusted by the control of the control panel when the adsorption box 12 needs to be replaced.

[0037] The electromagnetic water flow regulating valve is set at the total water inlet 7 and the total water outlet 4-5. When the adsorption box needs to be replaced or other maintenance operations are carried out on the treatment system, the electromagnetic water flow regulating valve is operated, adjusted, closed, and opened by the control panel, facilitating the operation and maintenance of the treatment system.

[0038] The aeration pump is supplied with power by the storage battery and is controlled by the control panel to aerate and oxygenate the water in the disinfection aeration module 4 through the aeration head 4-2.

[0039] The water quality monitoring module 5 includes the influent water quality sensor 10, the influent water level sensor 12 in the physical treatment module, the effluent water quality sensor 4-4, and the effluent water level sensor 4-6 in the disinfection aeration treatment module 4. The water quality monitoring module 5 is used to monitor the influent water quality and the water quality after final treatment. The monitoring items include: dissolved oxygen (DO), pH value, turbidity, ammonia nitrogen, total phosphorus, etc., so as to timely adjust the water inflow to ensure sufficient contact time and adsorption efficiency or replace the adsorption filler to ensure the effluent effect.

[0040] A treatment method applicable to landscape water includes the following steps: (1) Startup stage Turn on the water quality monitoring module, and obtain the initial pollution index of the water body and the water quality of the effluent during the system startup stage through the influent water quality sensor and the effluent water quality sensor. Gradually adjust the operating parameters of the physical treatment module, adsorption treatment module, biological treatment module, disinfection aeration module, water quality monitoring module, and control and power system module according to the monitoring results; (2) Operation stage 1. Physical treatment module The external landscape water enters the physical treatment module on the outer ring of the annular cylinder through the total water inlet. The water to be treated passes through the coarse grille and the fine grille in sequence to remove floating substances, large particulate matters, and suspended particles in the water, improving the water transparency and providing relatively clean water quality for subsequent treatment; 2. Adsorption treatment module The water flow enters the adsorption treatment module in the inner ring of the annular cylinder through the outlet of the physical treatment module. The landscape water sequentially passes through the adsorption boxes filled with modified zeolite and iron-based adsorbent in the adsorption treatment module in the inner ring of the annular cylinder in a counterclockwise direction. The modified zeolite adsorption box and the iron-based adsorbent adsorption box respectively adsorb ammonia nitrogen and phosphate in the landscape water with water, reducing water eutrophication. 3. Biological treatment module The landscape water treated by the adsorption treatment module in the inner ring of the annular cylinder flows into the ecological treatment module in the outer ring of the annular cylinder through the water inlet of the ecological treatment module. The ecological treatment module is arranged in a ditch along the outer ring cylinder. The biological treatment module is filled with egg gravel layer, ceramsite layer, soil layer and aquatic plants from bottom to top in sequence. The landscape water flows through the area of aquatic plants with developed roots in the outer ring ditch of the annular cylinder, further removing nitrogen and phosphorus in the water body. 4. Disinfection and aeration treatment module After the landscape water passes through the treatment port of the ecological treatment module, it flows into the disinfection and aeration module through the water inlet of the disinfection and aeration module in the outer ring of the annular cylinder. The dissolved oxygen concentration in the water body is increased by aeration, and the DNA of microorganisms is damaged by the radiation of ultraviolet disinfection lamps, achieving the bactericidal effect and further treating the landscape water. 5. Control and power system module The control and power system module is arranged above the top cover of the disinfection and aeration treatment module. The inlet water quality and the water level in the system can be viewed in real time through the control panel. The electromagnetic valves at the water inlet and outlet can be operated through the control panel to adjust the water inflow and outflow, the residence time of landscape water treatment, the aeration volume and the motor rotation of the central turntable of the adsorption treatment module, dynamically adjusting the operation parameters of each module. A photovoltaic panel is set on the top of the adsorption treatment module. On the one hand, it can prevent external sundries from entering the adsorption treatment module and affecting the system operation. On the other hand, it can convert electric energy and store it in the energy storage battery to supply power for the power operation of the system, providing power support for the electromagnetic water volume valve, water quality sensor, water level sensor, motor, aeration pump, ultraviolet lamp and control system. (3)Maintenance stage 1. Regularly clean the sundries and sediments intercepted in the physical treatment module to prevent impurity accumulation. 2. Regularly check the water quality of influent and effluent. After long-term use, the adsorbent will reach the adsorption saturation state. When it is found that the effluent water quality deteriorates, the replacement work of a single adsorption tank can be started. When replacing a single adsorption tank, the electromagnetic water volume valves of the inlet and outlet will be closed through the control panel. The cover plate of the adsorption treatment module will be opened, and the impermeable plate clamped in the first adsorption tank body horizontally on the left will be taken out and inserted into the impermeable plate groove of the second adsorption tank in the counterclockwise direction. The first adsorption tank body that has reached adsorption saturation will be taken out, and a new tank body filled with the same adsorption filler will be put in. Operate the motor through the control panel to rotate the central turntable clockwise. Driven by the central turntable, the adsorption tank body slides along the inner rail and the outer rail respectively through the bottom pulley. After the second adsorption tank is rotated to the horizontal position on the left, it will stop automatically, and then the cover plate of the adsorption treatment module will be covered. By this method, the adsorption effect of each adsorption tank body in the adsorption treatment module can be maximized in sequence, avoiding the waste of adsorbent; 3. Check the health status of the plants in the ecological treatment module. The ecological treatment module provides sufficient time and space for the roots of plants to fully contact the pollutants in the water by controlling the flow rate and direction of the water flow appropriately, increasing the water purification efficiency. The growth of the plants in the ecological treatment module needs to be regularly trimmed and managed to maintain the vitality and adsorption capacity of the roots; the water flow in the ditch also needs to be kept unobstructed to avoid the excessive growth of plant roots affecting the water flow; 4. Take out the adsorption-saturated adsorption tank bodies that are regularly replaced for regeneration to maintain the denitrification and phosphorus removal efficiency; the regenerated adsorbent can be put back into use, reducing the replacement frequency of the adsorbent and saving the operation cost.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A treatment system applicable to landscape water, characterized in that, The system adopts a ring-column structure form, including a physical treatment module, an adsorption treatment module, a biological treatment module, a disinfection aeration module, a water quality monitoring module, and a control and power system module; among them, the physical treatment module, the biological treatment module, and the disinfection aeration module are arranged on the outer ring column, the adsorption treatment module is located in the inner ring column, and the control and power system module is located at the top of the ring column; the landscape water flows through the physical treatment module, the adsorption treatment module, the biological treatment module, and the disinfection aeration module in sequence until the effluent water quality is qualified and then discharged.

2. The treatment system applicable to landscape water according to claim 1, characterized in that, The physical treatment module is provided with a total water inlet, and a coarse grille plate, a fine grille plate, an influent water quality sensor, and an inlet of the adsorption treatment module are arranged in sequence along the water flow direction.

3. The treatment system applicable to landscape water according to claim 2, wherein The coarse grille plate and the fine grille plate are arranged vertically in sequence along the water flow direction. The coarse grille plate adopts a distributed type, with a grille mesh on the upper part for intercepting larger debris in the influent water, and an impermeable solid plate on the lower part for accumulating the heavy sediment in the water for later cleaning; the fine grille plate adopts an integral grille mesh for further intercepting debris in the influent water, reducing the impurities entering the subsequent treatment module, reducing the load on the subsequent treatment, and avoiding blockage.

4. The treatment system applicable to landscape water according to claim 1, wherein The adsorption treatment module includes a detachable adsorption box and a central turntable. The central turntable is arranged at the center position of the inner ring column, and a card slot for placing the adsorption box is arranged on the outer circumference of the turntable for fixing the adsorption box. The detachable adsorption boxes are arranged annularly and evenly along the central turntable.

5. The treatment system applicable to landscape water according to claim 4, characterized in that, The adsorption box includes a box body, a movable cover plate, a vertical card slot, an impermeable plate slot, an impermeable plate, bottom pulleys, a water isolation strip, adsorption fillers, and an outlet of the adsorption treatment module; the box body is made of stainless steel and has a stainless steel mesh surface along the water flow direction; the movable cover plate is arranged on the top of the box body; the vertical card slot is arranged on the side close to the central turntable and is used in cooperation with the card slot to fix the adsorption box body; the impermeable plate slot is arranged outside the box body on the water outlet side, and the impermeable plate is inserted into the box body through the impermeable plate slot, and other adsorption box bodies do not insert the impermeable plate, so that the water entering the adsorption treatment module flows counterclockwise and enters the biological treatment module from the outlet of the adsorption treatment module; the bottom pulleys are arranged on both sides of the bottom of the box body, and inner slide rails and outer slide rails are arranged at the bottom of the pulleys for reducing the sliding resistance when the central turntable rotates and stabilizing the sliding of the adsorption box body; the water isolation strip is arranged vertically on the side of the box body close to the outer ring for keeping the box body close to the outer ring side to avoid water overflowing from the gap.

6. The treatment system applicable to landscape water according to claim 5, characterized in that, The adsorption fillers are selected from modified zeolite and iron-based adsorbent fillers and are filled in different adsorption boxes in a spaced manner.

7. The treatment system applicable to landscape water according to claim 1, characterized in that, The biological treatment module 3 is arranged in a ditch along the outer ring column, and a layer of egg gravel, a layer of ceramsite, a layer of soil, and aquatic plants are filled in sequence from bottom to top.

8. The treatment system applicable to landscape water according to claim 1, characterized in that, The disinfection aeration module includes an inlet of the disinfection aeration module, an aeration head, an ultraviolet disinfection lamp, an effluent water quality sensor, a total outlet, and an effluent water level sensor. The aeration head is arranged at the bottom of the pool body of the disinfection aeration module to increase the oxygen content in the water. The ultraviolet disinfection lamp is arranged in the center of the pool body of the disinfection aeration module. The water flow passes through the radiation of the ultraviolet disinfection lamp to destroy the DNA of microorganisms and achieve the sterilization effect. The total outlet is arranged on one side of the outer ring cylinder of the disinfection aeration module to discharge the treated water to the outside.

9. The treatment system applicable to landscape water according to claim 1, wherein, The water quality monitoring module is the influent water quality sensor, influent water level sensor set in the physical treatment module, and the effluent water quality sensor, effluent water level sensor in the disinfection aeration treatment module.

10. A treatment method applicable to landscape water, characterized in that, It includes the following steps: (1) Startup stage Turn on the water quality monitoring module, and obtain the initial pollution index of the water body and the effluent water quality situation during the startup stage of the system through the influent water quality sensor and the effluent water quality sensor. Gradually adjust the operating parameters of the physical treatment module, adsorption treatment module, biological treatment module, disinfection aeration module, water quality monitoring module, and control and power system module according to the monitoring results. (2) Operation stage ① Physical treatment module The external landscape water enters the physical treatment module on the outer ring of the annular cylinder through the total inlet. The water to be treated successively passes through the coarse grille and the fine grille to remove floating substances, large particulate matters, and suspended particles in the water, so as to improve the transparency of the water body and provide relatively clean water quality for subsequent treatment. ② Adsorption treatment module The water flow flows into the adsorption treatment module on the inner ring of the annular cylinder through the outlet of the physical treatment module. The landscape water sequentially passes through the adsorption boxes filled with modified zeolite and iron-based adsorbent in the adsorption treatment module in the counterclockwise direction. The modified zeolite adsorption box and the iron-based adsorbent adsorption box respectively adsorb ammonia nitrogen and phosphate in the landscape water with water to reduce the eutrophication of the water body. ③ Biological treatment module The landscape water treated by the adsorption treatment module on the inner ring of the annular cylinder flows into the ecological treatment module on the outer ring of the annular cylinder through the inlet of the ecological treatment module. The ecological treatment module is arranged in a ditch shape along the outer ring cylinder. The biological treatment module is filled with egg gravel layer, ceramsite layer, soil layer, and aquatic plants from bottom to top in sequence. The landscape water flows through the area of aquatic plants with developed roots in the outer ring ditch of the annular cylinder to further remove nitrogen and phosphorus in the water body. ④ Disinfection aeration treatment module The landscape water, after being treated by the ecological treatment module, flows into the disinfection aeration module through the inlet of the disinfection aeration module on the outer ring of the annular cylinder. The dissolved oxygen concentration in the water body is increased through aeration, and the radiation of the ultraviolet disinfection lamp destroys the DNA of microorganisms to achieve the sterilization effect, and further treats the landscape water. ⑤ Control and power system module The control and power system module is arranged above the top cover plate of the disinfection aeration treatment module. Through the control panel, the influent water quality and the water level in the system can be viewed in real time. The electromagnetic valves at the inlet and outlet can be operated through the control panel to adjust the influent and effluent water volumes, the residence time of landscape water treatment, the aeration volume, and the rotation of the motor of the central turntable of the adsorption treatment module, and the operation parameters of each module can be dynamically adjusted. A photovoltaic panel is set on the top of the adsorption treatment module. On the one hand, it can prevent external sundries from entering the adsorption treatment module and affecting the system operation. On the other hand, it can convert electrical energy and store it in the energy storage battery to supply power for the power operation of the system, and provide power support for the electromagnetic water volume valve, water quality sensor, water level sensor, motor, aerator, ultraviolet lamp, and control system; (3)Maintenance stage ① Regularly clean the sundries and sediments intercepted in the physical treatment module to prevent impurity accumulation; ② Regularly check the influent and effluent water quality. After long-term use, the adsorbent will reach the adsorption saturation state. When it is found that the effluent water quality deteriorates, the replacement work of a single adsorption box can be started. When replacing a single adsorption box, the electromagnetic water volume valves at the inlet and outlet will be closed through the control panel, the cover plate of the adsorption treatment module will be opened, the water-impermeable plate clamped in the first adsorption box body horizontally on the left will be taken out and inserted into the water-impermeable plate groove of the second adsorption box in the counterclockwise direction. The first adsorption box body that has been saturated with adsorption will be taken out, and a new box body filled with the same adsorption filler will be put in. The motor will be operated through the control panel to rotate the central turntable clockwise. Driven by the central turntable, the adsorption box body will slide along the inner rail and the outer rail respectively through the bottom pulley. After the second adsorption box is rotated to the horizontal position on the left, it will stop automatically, and the cover plate of the adsorption treatment module will be covered. Through this method, the adsorption effect of each adsorption box body in the adsorption treatment module can be maximized in turn, and the waste of adsorbent can be avoided; ③ Check the health status of the plants in the ecological treatment module. The ecological treatment module provides sufficient time and space for the roots of plants to fully contact the pollutants in the water by controlling the flow rate and direction of the water flow appropriately, increasing the water purification efficiency. The growth of plants in the ecological treatment module needs to be regularly trimmed and managed to maintain the vitality and adsorption capacity of the roots; the water flow in the ditch also needs to be kept unobstructed to avoid the excessive growth of plant roots affecting the water flow; ④ Take out the adsorption-saturated adsorption box bodies that are regularly replaced for regeneration to maintain the denitrification and phosphorus removal efficiency; the regenerated adsorbent can be reused, reducing the replacement frequency of the adsorbent and saving the operation cost.

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