A treatment system and method for landscape water

Abstract

The present application relates to a kind of treatment system and method suitable for landscape water, belong to the field of biotechnology engineering application.The system adopts annular cylindrical type configuration form, including physical treatment module, adsorption treatment module, biological treatment module, disinfection aeration module, water quality monitoring module, control and power system module;Among them, the physical treatment module, biological treatment module, disinfection aeration module are located in outer ring cylinder arrangement, adsorption treatment module is located in inner ring cylinder, control and power system module is located in annular cylinder top;Landscape water flows through physical treatment module, adsorption treatment module, biological treatment module, disinfection aeration module in turn to water quality qualified effluent.The system is through the synergistic effect of physical filtration, adsorption phosphorus removal denitrification, biological repair and intelligent control, solve the problems of low processing efficiency, complex operation, high maintenance cost in prior art, realize long-term stable water quality and ecological restoration.

Description

Technical Field

[0001] This invention belongs to the field of biotechnology engineering applications, specifically relating to a treatment system and method suitable for landscape water. Background Technology

[0002] Landscape water bodies are widely found in parks, urban green spaces, residential areas, and other places, and are an important part of the modern urban ecological environment. Landscape water not only beautifies the environment, but also regulates the climate, alleviates the urban heat island effect, and provides residents with comfortable leisure and entertainment spaces. However, due to the dual impact of human activities and the natural environment, landscape water bodies face a variety of water quality problems: (1) Rainwater runoff will bring external pollution such as silt, garbage and chemicals into landscape water bodies, making them susceptible to damage from suspended particles, heavy metals and organic pollutants; (2) Excessive nutrients such as nitrogen and phosphorus will cause eutrophication of landscape water bodies, leading to excessive algal growth and even cyanobacterial blooms; (3) Landscape water bodies have relatively weak flow and insufficient self-purification capacity, which prolongs the residence time of pollutants and further aggravates water quality problems.

[0003] Existing landscape water treatment technologies mainly employ physical, chemical, and biological methods, either individually or in combination, but they still have many shortcomings in practical operation. On the one hand, single treatment technologies are insufficient to effectively address complex pollution types, resulting in low treatment efficiency; on the other hand, traditional systems require frequent manual operation, have low automation levels, are complex to operate, and have high maintenance costs. Therefore, to address the water quality problems of landscape water bodies, there is an urgent need to develop a comprehensive treatment system that integrates high efficiency, environmental friendliness, and ease of maintenance to achieve long-term water quality improvement and ecological environment restoration. Summary of the Invention

[0004] The purpose of this 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, bioremediation, and intelligent regulation, it solves the problems of low treatment efficiency, complex operation, and high maintenance costs in existing technologies, achieving long-term water quality stability and ecological restoration. This system is a comprehensive treatment system integrating high efficiency, environmental friendliness, and ease of maintenance, and is particularly suitable for the comprehensive treatment of eutrophic water bodies containing ammonia nitrogen, phosphate, and other pollutants.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A landscape water treatment system is disclosed. The system adopts a ring-shaped columnar structure, including 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. The physical treatment module, biological treatment module, and disinfection and aeration module are located on the outer ring column, the adsorption treatment module is located on the inner ring column, and the control and power system module is located at the top of the ring column. Landscape water flows sequentially through the physical treatment module, adsorption treatment module, biological treatment module, and disinfection and aeration module until the effluent meets the required water quality standards before being discharged.

[0006] Furthermore, the physical processing module is provided with a main water inlet, and a coarse grid plate, a fine grid plate, an inlet water quality sensor, and an adsorption treatment module inlet are arranged sequentially along the water flow direction.

[0007] Furthermore, the coarse and fine bar screens are arranged vertically along the water flow direction. The coarse bar screen is segmented, with the upper part being a bar mesh to intercept larger debris in the influent and the lower part being an impermeable solid plate to accumulate heavy sediments in the water for easy cleaning later. The fine bar screen is an integral bar mesh to further intercept debris in the influent, reduce impurities entering the subsequent treatment modules, reduce the load on subsequent treatment, and avoid clogging.

[0008] Furthermore, the adsorption treatment module includes a detachable adsorption box and a central turntable. The central turntable is arranged at the center of the inner ring column, and slots for holding the adsorption box are provided around the outer side of the turntable to fix the adsorption box. The detachable adsorption boxes are evenly arranged in a ring around the central turntable.

[0009] Furthermore, the adsorption box includes a box body, a movable cover plate, a vertical slot, a water-impermeable plate groove, a water-impermeable plate, bottom pulleys, a water-separating strip, adsorption packing material, and an outlet for the adsorption treatment module. The box body is made of stainless steel, with a stainless steel mesh surface along the water flow direction. The movable cover plate is located on the top of the box body. The vertical slot is located on the side near the central turntable and cooperates with the slot to fix the adsorption box body. The water-impermeable plate groove is located on the outside of the box body on the water outlet side, and the water-impermeable plate is inserted into the box body through the water-impermeable plate groove, while other adsorption boxes are not inserted into the water-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 the bottom of the pulleys is provided with inner and outer slide rails to reduce sliding resistance when the central turntable rotates and stabilize the sliding of the adsorption box body. The water-separating strip is vertically arranged on the outer ring side of the box body to keep the box body and the outer ring side tightly closed and prevent water from overflowing from the gaps.

[0010] Furthermore, the adsorption packing material is selected from modified zeolite and iron-based adsorbent packing materials, which are placed in different adsorption boxes in an alternating manner.

[0011] Furthermore, the biological treatment module 3 is arranged in a trench along the outer ring column, and from bottom to top, it is filled with a layer of gravel, a layer of ceramsite, a layer of soil, and aquatic plants.

[0012] Furthermore, the disinfection and aeration module includes a disinfection and aeration module inlet, an aeration head, an ultraviolet disinfection lamp, an effluent water quality sensor, a main outlet, and an effluent water level sensor. The aeration head is located at the bottom of the disinfection and aeration module tank to increase the oxygen content in the water. The ultraviolet disinfection lamp is arranged in the center of the disinfection and aeration module tank. The water flow passes through the radiation of the ultraviolet disinfection lamp, which destroys the DNA of microorganisms and achieves a sterilization effect. The main outlet is located on one side of the outer ring column of the disinfection and aeration module to discharge the treated water to the outside.

[0013] Furthermore, the water quality monitoring module includes an influent water quality sensor and an influent water level sensor installed in the physical treatment module, and an effluent water quality sensor and an effluent water level sensor installed in the disinfection and aeration treatment module.

[0014] A method for treating landscape water includes the following steps: (1) Start-up phase The water quality monitoring module is activated to obtain initial pollution indicators of the water body and the effluent water quality during the system startup phase through influent and effluent water quality sensors. Based on the monitoring results, the operating parameters of the physical treatment module, adsorption treatment module, biological treatment module, disinfection and aeration module, water quality monitoring module, and control and power system module are gradually adjusted. (2) Operation phase 1. Physical processing module External landscape water enters the physical treatment module of the outer ring of the annular column through the main inlet. The water to be treated passes through coarse screen and fine screen in sequence to remove floating objects, large particles and suspended particles in the water, so as to improve the water transparency and provide cleaner water quality for subsequent treatment. 2. Adsorption treatment module Water flows into the adsorption treatment module in the inner ring of the annular column through the outlet of the physical treatment module. The landscape water passes through the adsorption tank containing modified zeolite and iron-based adsorbent in a counterclockwise direction in the adsorption treatment module. The modified zeolite adsorption tank and the iron-based adsorbent adsorption tank adsorb ammonia nitrogen and phosphate in the landscape water respectively, reducing eutrophication of the water body. 3. Biological treatment module After being treated by the adsorption treatment module in the inner ring of the annular column, the landscape water flows into the ecological treatment module in the outer ring of the annular column through the inlet of the ecological treatment module. The ecological treatment module is arranged in a ditch along the outer ring column. The biological treatment module is filled with a layer of gravel, a layer of ceramsite, a layer of soil and aquatic plants from bottom to top. The landscape water flows through the aquatic plant area with well-developed root systems in the outer ring ditch, further removing nitrogen and phosphorus from the water. 4. Disinfection and aeration treatment module After passing through the treatment port of the ecological treatment module, the landscape water flows into the disinfection and aeration module through the inlet of the disinfection and aeration module on the outer ring of the annular column. The dissolved oxygen concentration in the water is increased by aeration, and the radiation of ultraviolet disinfection lamps destroys the DNA of microorganisms, achieving a sterilization effect and further treating the landscape water. 5. Control and Power System Module The control and power system module is located above the top cover of the disinfection and aeration treatment module. The control panel allows real-time monitoring of the influent water quality and system water level. The control panel also allows operation of the inlet and outlet solenoid valves to adjust the influent and effluent flow rates, the retention time for the landscape water treatment, the aeration rate, and the rotation of the motor on the central turntable of the adsorption treatment module, dynamically adjusting the operating parameters of each module. A photovoltaic panel is installed on top of the adsorption treatment module. This serves two purposes: firstly, it prevents external debris from entering the adsorption treatment module and affecting system operation; secondly, it converts electrical energy into stored energy in the battery, providing power to the electromagnetic flow valves, water quality sensors, water level sensors, motors, aerators, UV lamps, and control system. (3) Maintenance phase 1. Regularly clean the debris and deposits intercepted in the physical processing module to prevent impurities from accumulating; 2. Regularly check the inlet and outlet water quality. After prolonged use, the adsorbent will reach adsorption saturation. When the effluent water quality deteriorates, the individual adsorption tank can be replaced. To replace an individual adsorption tank, close the inlet and outlet electromagnetic water flow valves via the control panel, open the adsorption module cover, remove the impermeable plate inserted into the first horizontal adsorption tank on the left, and insert it into the impermeable plate slot of the second adsorption tank (rotating counter-clockwise). Remove the saturated first adsorption tank and insert a new tank containing the same adsorption packing. Operate the motor clockwise on the control panel to rotate the central turntable. Driven by the central turntable, the adsorption tank slides along the inner and outer slide rails via the bottom pulleys until the second adsorption tank reaches the horizontal position on the left and automatically stops. Close the adsorption module cover. This method maximizes the adsorption effect of each adsorption tank in the sequential adsorption module, avoiding waste of adsorbent. 3. Check the health status of the plants in the ecological treatment module. The ecological treatment module controls the water flow rate and direction appropriately, providing sufficient time and space for the plant roots to fully contact the pollutants in the water, increasing water purification efficiency. The plants in the ecological treatment module require regular pruning and management to maintain root vitality and adsorption capacity; the water flow in the ditches must also be kept unobstructed to prevent excessive root growth from affecting the water flow. 4. Take out the saturated adsorption chambers that are replaced periodically for regeneration to maintain nitrogen and phosphorus removal efficiency; the regenerated adsorbent can be reused, reducing the frequency of adsorbent replacement and saving operating costs.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention adopts a highly efficient comprehensive treatment method, utilizing physical, adsorption, and biological means in synergy. It is a comprehensive treatment system that integrates high efficiency, environmental protection, and ease of maintenance, and has four technical advantages: (1) Wide applicability: 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 the treatment of landscape water; (2) Significant treatment effect: 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 control, unmanned operation, remote operation and monitoring are achieved, reducing the cost of manual maintenance and operation, and improving the efficiency of emergency treatment; (4) Simple and easy to promote: The system has a simple structure and adopts a modular design. The adsorbent has a high utilization rate and can be regenerated, making it suitable for large-scale promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of a landscape water treatment system according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a landscape water treatment system according to the present invention; Figure 3 This is a schematic diagram of the top arrangement of a landscape water treatment system according to the present invention; Figure 4 This is a schematic diagram of the physical processing module structure of the present invention; Figure 5 This is a schematic diagram of the coarse and fine grid structures of the physical processing module of the present invention; Figure 6 This is a schematic diagram of the adsorption treatment module structure 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 This is a schematic diagram of the adsorption box structure of the present invention; Figure 9 This is a schematic diagram of the ecological processing module structure of the present invention; Figure 10 This is a schematic diagram of the disinfection aeration module structure of the present invention; In the diagram, 1. Physical treatment module, 2. Adsorption treatment module, 3. Biological treatment module, 3-1. Gravel layer, 3-2. Ceramsite layer, 3-3. Soil layer, 3-4. Aquatic plants, 4. Disinfection and aeration module, 4-1. Inlet of disinfection and aeration module, 4-2. Aeration head, 4-3. Ultraviolet disinfection lamp, 4-4. Effluent water quality sensor, 4-5. Main outlet, 4-6. Effluent water level sensor, 4-7. Inspection port, 5. Water quality monitoring module, 6. Control and power system module, 6-1. Monitor, 6-2. Photovoltaic panel, 7. Main inlet, 8. 8-1. Coarse grating plate; 8-2. Grating mesh; 8-3. Solid plate; 9. Fine grating plate; 10. Inlet water quality sensor; 11. Inlet of adsorption treatment module; 12. Inlet water level sensor; 13. Adsorption box; 13-1. Box body; 13-2. Movable cover plate; 13-3. Vertical slot; 13-4. Impermeable plate slot; 13-5. Impermeable plate; 13-6. Bottom pulley; 13-7. Water barrier strip; 13-8. Outlet of adsorption treatment module; 13-9. Inner slide rail; 13-10. Outer slide rail; 14. Central turntable; 15. Slot; 16. Motor. Detailed Implementation

[0017] The technical solution and effects of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto. Example 1

[0018] This invention proposes a treatment system and method suitable for landscape water. The system achieves long-term water quality stability and ecological environment improvement through a combination of physical, adsorption, biological, disinfection and aeration methods.

[0019] like Figure 1-3 A landscape water treatment system is disclosed. The system adopts a ring-shaped columnar structure, 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. The physical treatment module 1, biological treatment module 3, and disinfection and aeration module 4 are located 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 at the top of the ring column. Landscape water flows sequentially through the physical treatment module 1, adsorption treatment module 2, biological treatment module 3, and disinfection and aeration module 4 until the effluent meets the required water quality standards before being discharged.

[0020] like Figure 2-5 As shown, the physical treatment module 1 is equipped with a main water inlet 7, and a coarse screen plate 8, a fine screen plate 9, an inlet water quality sensor 10, and an adsorption treatment module inlet 11 are arranged sequentially along the water flow direction. The physical treatment module 1 removes floating matter, large particles, and suspended particles from the water to improve water transparency and provide cleaner water for subsequent treatment.

[0021] The main water inlet 7 is located on the upper part of the outer side of the annular column, and is used to introduce external landscape water that needs to be treated into the treatment system. The main water inlet 7 is equipped with an electromagnetic water flow regulating valve to control the amount of water entering the system.

[0022] Furthermore, the coarse grid plate 8 and the fine grid plate 9 are arranged vertically along the water flow direction. The coarse grid plate 8 is segmented, with an upper grid mesh 8-1 for intercepting larger debris in the incoming water, and a lower impermeable solid plate 8-2 for accumulating heavy sediments in the water for later cleaning. Furthermore, the pore size of the grid mesh is 0.3-0.5 μm. In one specific embodiment, the height ratio of the grid mesh to the impermeable solid plate is 2:1. The fine grid plate 9 is a single, integral grid mesh used to further intercept debris in the incoming water, reducing impurities entering subsequent treatment modules, reducing the load on subsequent treatment processes, and preventing blockages. The pore size of the fine grid mesh is 0.1-0.3 μm.

[0023] Furthermore, the top of the physical processing module 1 is equipped with an inlet water level sensor 12 and a maintenance cover plate, the maintenance cover plate being used to periodically remove debris deposited inside the physical module. The inlet water level sensor 12 and the inlet water quality sensor 10 are connected to the control and power system module 6.

[0024] The inlet 11 of the adsorption treatment module is located on the inner ring column side, and is used to allow water from the physical treatment module 1 to flow into the adsorption treatment module 2. The adsorption treatment module 2 can efficiently remove ammonia nitrogen and phosphate from the water, reducing eutrophication. Figure 6-8 As shown, the adsorption processing module 2 includes a detachable adsorption box 13 and a central turntable 14. The central turntable 14 is located at the center of the inner ring column. Slots 15 for holding the adsorption boxes 13 are provided around the outer circumference of the turntable. The detachable adsorption boxes 13 are evenly arranged in a ring around the central turntable 14. A motor 16 is installed on the top of the central turntable 14 to provide power for its rotation. The motor 16 is connected to the control and power system module 6.

[0025] Furthermore, the adsorption box 13 includes a box body 13-1, a movable cover plate 13-2, a vertical slot 13-3, a water-impermeable plate slot 13-4, a water-impermeable plate 13-5, bottom pulleys 13-6, a water-separating strip 13-7, adsorption packing material, and an adsorption treatment module outlet 13-8. The box body 13-1 of the adsorption box adopts a vertical structure to improve the contact efficiency of water flow and increase the adsorption effect. The box body 13-1 is made of stainless steel, and a stainless steel mesh is used along the water flow direction to easily increase water permeability and reduce the weight of the box body. The movable cover plate 13-2 is located on the top of the box body 13-1 for easy replacement of the adsorption packing material. The vertical slot 13-3 is located on the side near the central turntable 14 and cooperates with the slot 15 to fix the adsorption box body 13-1. The impermeable plate groove 13-4 is located outside the water outlet side box 13-1, and the impermeable plate 13-5 is inserted into the left horizontal box 13-1 through the impermeable plate groove 13-4, while other adsorption boxes are not inserted into the impermeable plate 13-5. This allows the water entering the adsorption treatment module 2 to flow counterclockwise below the left horizontal adsorption box 13-1, and then enter the biological treatment module 3 from the adsorption treatment module outlet 13-8 above the left horizontal adsorption box 13-1. In this paragraph, left and lower positions are... Figure 2 The bottom pulleys 13-6 are arranged on both sides of the bottom of the box 13-1. The bottom of the pulleys is equipped with inner slide rails 13-9 and outer slide rails 13-10, which are used to reduce sliding resistance when the central turntable 14 rotates and to stably hold the box 13-1 to slide. The water-proof strip 13-7 is vertically arranged on the outer ring side of the box 13-1 to keep the box 13-1 tightly closed with the outer ring side and prevent water from overflowing from the gaps.

[0026] The adsorption packing material used in this invention is specifically designed for treating nitrogen and phosphorus pollutants in landscape water. Modified zeolite and iron-based adsorbent packing materials are preferred for adsorption, with no specific model limitation. Modified zeolite and iron-based adsorbent packing materials used for wastewater can also be used in this invention. For other wastewater, suitable adsorption materials can be used for adsorption treatment. The flexibility of the adsorption materials increases the applicability of this invention. The modified zeolite and iron-based adsorbent are spaced apart in different adsorption chambers. The modified zeolite is used to primarily adsorb ammonia nitrogen in the water, while the iron-based adsorbent is used to primarily adsorb phosphate in the water.

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

[0028] Furthermore, the biological treatment module 3 is filled from bottom to top with a gravel layer 3-1, a ceramsite layer 3-2, a soil layer 3-3, and aquatic plants 3-4. Even further, the preferred volume ratio of the gravel layer 3-1, ceramsite layer 3-2, and soil layer 3-3 is 3:2:1. The specific conditions of the gravel layer 3-1, ceramsite layer 3-2, and soil layer 3-3 are not innovative methods of this invention; commonly used methods in existing technologies can be employed. The aquatic plants 3-4 should preferably be plants adapted to aquatic environments, pollution-resistant, and with well-developed root systems to enhance the removal of nitrogen and phosphorus from the water. Examples include cattails, water hyacinths, yellow irises, or other locally suitable aquatic plants.

[0029] The disinfection and aeration module 4 is used to increase the dissolved oxygen concentration in the water and kill pathogenic microorganisms in the water. Figure 2 and 10 As shown, the disinfection aeration module 4 includes a disinfection aeration module inlet 4-1, an aeration head 4-2, an ultraviolet disinfection lamp 4-3, an effluent water quality sensor 4-4, a main outlet 4-5, and an effluent water level sensor 4-6. The aeration head 4-2 is located at the bottom of the disinfection aeration module 4 tank to increase the oxygen content in the water. The ultraviolet disinfection lamp 4-3 is arranged in the center of the disinfection aeration module 4 tank. Water flowing through the ultraviolet disinfection lamp 4-3 is exposed to ultraviolet radiation, which destroys the DNA of microorganisms, achieving a sterilization effect. The main outlet 4-5 is located on one side of the outer ring column 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] Furthermore, the main water outlet 4-5 is equipped with an electromagnetic water flow regulating valve to control the water volume within the system.

[0031] The disinfection aeration module 4 is equipped with a fixed cover plate and an inspection port 4-7 on its top. The upper part of the fixed cover plate is used to house the control and power system module 6, such as... Figure 1 As shown. The control and power system module 6 includes a control panel, a network system, a monitor 6-1, a photovoltaic panel 6-2, a storage battery, a motor 16, an electromagnetic water flow regulating valve, an oxygenation pump, and an ultraviolet disinfection lamp 4-3.

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

[0033] The networked system is connected to the maintenance and management office of the treatment system, providing real-time feedback on the system's operation status and issuing timely warnings based on water quality monitoring data. This provides information support for system inspection and maintenance. At the same time, the maintenance and management office has remote control authority and can remotely control the control panel, improving emergency maintenance efficiency and reducing maintenance costs.

[0034] The monitor 6-1 is installed on top of the disinfection aeration module 4 and is used by the maintenance and management department to remotely view the system operation, which facilitates 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 powered by a storage battery and its rotation is adjusted by the control panel when the adsorption box 12 needs to be replaced.

[0037] The electromagnetic water flow regulating valve is located at the main inlet 7 and the main outlet 4-5. When the treatment system needs to replace the adsorption tank or perform other maintenance operations, the electromagnetic water flow regulating valve can be adjusted, closed, and opened by the control panel, which facilitates the operation and maintenance of the treatment system.

[0038] The oxygenation pump is powered by a storage battery and controlled by a control panel. It aerates and oxygenates the water in the disinfection aeration module 4 through the aeration head 4-2.

[0039] The water quality monitoring module 5 consists of an influent water quality sensor 10 and an influent water level sensor 12 installed in the physical treatment module, and an effluent water quality sensor 4-4 and an effluent water level sensor 4-6 installed in the disinfection and aeration treatment module 4. The water quality monitoring module 5 is used to monitor the influent water quality and the final treated water quality. Monitoring items include dissolved oxygen (DO), pH value, turbidity, ammonia nitrogen, and total phosphorus, etc., to allow for timely adjustment of the influent flow rate to ensure sufficient contact time and adsorption efficiency, or to replace the adsorption packing material, ensuring optimal effluent quality.

[0040] A method for treating landscape water includes the following steps: (1) Start-up phase The water quality monitoring module is activated to obtain initial pollution indicators of the water body and the effluent water quality during the system startup phase through influent and effluent water quality sensors. Based on the monitoring results, the operating parameters of the physical treatment module, adsorption treatment module, biological treatment module, disinfection and aeration module, water quality monitoring module, and control and power system module are gradually adjusted. (2) Operation phase 1. Physical processing module External landscape water enters the physical treatment module of the outer ring of the annular column through the main inlet. The water to be treated passes through coarse screen and fine screen in sequence to remove floating objects, large particles and suspended particles in the water, so as to improve the water transparency and provide cleaner water quality for subsequent treatment. 2. Adsorption treatment module Water flows into the adsorption treatment module in the inner ring of the annular column through the outlet of the physical treatment module. The landscape water passes through the adsorption tank containing modified zeolite and iron-based adsorbent in a counterclockwise direction in the adsorption treatment module. The modified zeolite adsorption tank and the iron-based adsorbent adsorption tank adsorb ammonia nitrogen and phosphate in the landscape water respectively, reducing eutrophication of the water body. 3. Biological treatment module After being treated by the adsorption treatment module in the inner ring of the annular column, the landscape water flows into the ecological treatment module in the outer ring of the annular column through the inlet of the ecological treatment module. The ecological treatment module is arranged in a ditch along the outer ring column. The biological treatment module is filled with a layer of gravel, a layer of ceramsite, a layer of soil and aquatic plants from bottom to top. The landscape water flows through the aquatic plant area with well-developed root systems in the outer ring ditch, further removing nitrogen and phosphorus from the water. 4. Disinfection and aeration treatment module After passing through the treatment port of the ecological treatment module, the landscape water flows into the disinfection and aeration module through the inlet of the disinfection and aeration module on the outer ring of the annular column. The dissolved oxygen concentration in the water is increased by aeration, and the radiation of ultraviolet disinfection lamps destroys the DNA of microorganisms, achieving a sterilization effect and further treating the landscape water. 5. Control and Power System Module The control and power system module is located above the top cover of the disinfection and aeration treatment module. The control panel allows real-time monitoring of the influent water quality and system water level. The control panel also allows operation of the inlet and outlet solenoid valves to adjust the influent and effluent flow rates, the retention time for the landscape water treatment, the aeration rate, and the rotation of the motor on the central turntable of the adsorption treatment module, dynamically adjusting the operating parameters of each module. A photovoltaic panel is installed on top of the adsorption treatment module. This serves two purposes: firstly, it prevents external debris from entering the adsorption treatment module and affecting system operation; secondly, it converts electrical energy into stored energy in the battery, providing power to the electromagnetic flow valves, water quality sensors, water level sensors, motors, aerators, UV lamps, and control system. (3) Maintenance phase 1. Regularly clean the debris and deposits intercepted in the physical processing module to prevent impurities from accumulating; 2. Regularly check the inlet and outlet water quality. After prolonged use, the adsorbent will reach adsorption saturation. When the effluent water quality deteriorates, the individual adsorption tank can be replaced. To replace an individual adsorption tank, close the inlet and outlet electromagnetic water flow valves via the control panel, open the adsorption module cover, remove the impermeable plate inserted into the first horizontal adsorption tank on the left, and insert it into the impermeable plate slot of the second adsorption tank (rotating counter-clockwise). Remove the saturated first adsorption tank and insert a new tank containing the same adsorption packing. Operate the motor clockwise on the control panel to rotate the central turntable. Driven by the central turntable, the adsorption tank slides along the inner and outer slide rails via the bottom pulleys until the second adsorption tank reaches the horizontal position on the left and automatically stops. Close the adsorption module cover. This method maximizes the adsorption effect of each adsorption tank in the sequential adsorption module, avoiding waste of adsorbent. 3. Check the health status of the plants in the ecological treatment module. The ecological treatment module controls the water flow rate and direction appropriately, providing sufficient time and space for the plant roots to fully contact the pollutants in the water, increasing water purification efficiency. The plants in the ecological treatment module require regular pruning and management to maintain root vitality and adsorption capacity; the water flow in the ditches must also be kept unobstructed to prevent excessive root growth from affecting the water flow. 4. Take out the saturated adsorption chambers that are replaced periodically for regeneration to maintain nitrogen and phosphorus removal efficiency; the regenerated adsorbent can be reused, reducing the frequency of adsorbent replacement and saving operating costs.

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

Claims

1. An easy-to-maintain treatment system suitable for landscape water, comprising 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; characterized in that, The system adopts a ring-shaped cylindrical structure, in which, The physical treatment module, biological treatment module, and disinfection aeration module are arranged in the outer ring column. The adsorption treatment module is located in the inner ring column. The control and power system module is located at the top of the ring-shaped column; The landscape water flows sequentially through the physical treatment module, adsorption treatment module, biological treatment module, and disinfection and aeration module until the effluent quality meets the standards and is discharged. The adsorption treatment module includes a detachable adsorption box and a central turntable. The central turntable is located at the center of the inner ring column. The outer side of the turntable is provided with slots for holding the adsorption box to fix the adsorption box. The detachable adsorption boxes are evenly arranged in a ring around the central turntable. The detachable adsorption box includes a box body, a movable cover, a vertical slot, a waterproof plate slot, a waterproof plate, bottom casters, a water-separating strip, adsorption packing material, and an adsorption treatment module outlet; wherein... The tank body is made of stainless steel, and a stainless steel mesh is used along the water flow direction; The movable cover is located on the top of the box; The vertical slot is located on the side near the central turntable and is used to fix the adsorption box in conjunction with the slot. The impermeable plate groove is located outside the water outlet side of the tank, and the impermeable plate is inserted into the tank through the impermeable plate groove. Other adsorption tanks do not insert the impermeable plate, so that the water entering the adsorption treatment module flows in a counterclockwise direction and enters the biological treatment module from the water outlet of the adsorption treatment module. The bottom pulleys are arranged on both sides of the bottom of the box. The bottom of the pulleys is equipped with inner and outer slide rails to reduce sliding resistance when the central turntable rotates and to stabilize the sliding of the box. The water-proof strip is vertically installed on the outer ring side of the box body to keep the box body and the outer ring side tightly closed and prevent water from overflowing from the gap.

2. The easy-to-maintain landscape water treatment system according to claim 1, characterized in that, The physical processing module is equipped with a main water inlet, and along the water flow direction, a coarse grid plate, a fine grid plate, an inlet water quality sensor, and an inlet for the adsorption treatment module are arranged in sequence.

3. The easy-to-maintain landscape water treatment system according to claim 2, characterized in that, The coarse and fine bar screens are arranged vertically along the water flow direction. The coarse bar screen is segmented, with the upper part being a bar mesh to intercept larger debris in the influent and the lower part being an impermeable solid plate to accumulate heavy sediments in the water for easy cleaning later. The fine bar screen is an integral bar mesh to further intercept debris in the influent, reduce impurities entering the subsequent treatment modules, reduce the load on subsequent treatment, and avoid clogging.

4. The easy-to-maintain landscape water treatment system according to claim 1, characterized in that, The adsorption packing material is made of modified zeolite and iron-based adsorbent, and is placed in different adsorption chambers in an alternating manner.

5. The low-maintenance treatment system for landscape water of claim 1, wherein, The biological treatment module is arranged in a ditch along the outer ring column, and from bottom to top, it is filled with a layer of gravel, a layer of expanded clay, a layer of soil, and aquatic plants.

6. The easy-to-maintain landscape water treatment system according to claim 1, characterized in that, The disinfection and aeration module includes a disinfection and aeration module inlet, an aeration head, an ultraviolet disinfection lamp, an effluent water quality sensor, a main outlet, and an effluent water level sensor. The aeration head is located at the bottom of the disinfection and aeration module tank to increase the oxygen content in the water. The ultraviolet disinfection lamp is arranged in the center of the disinfection and aeration module tank. Water flows through the ultraviolet radiation of the disinfection lamp, destroying the DNA of microorganisms and achieving a sterilization effect. The main outlet is located on one side of the outer ring column of the disinfection and aeration module to discharge the treated water to the outside.

7. The easy-to-maintain landscape water treatment system according to claim 1, characterized in that, The water quality monitoring module consists of an influent water quality sensor and an influent water level sensor installed in the physical treatment module, and an effluent water quality sensor and an effluent water level sensor installed in the disinfection and aeration module.

8. A method for treating landscape water using the easy-to-maintain landscape water treatment system of claim 1, comprising the following steps: (1) Start-up phase The water quality monitoring module is activated to obtain initial pollution indicators of the water body and the effluent water quality during the system startup phase through influent and effluent water quality sensors. Based on the monitoring results, the operating parameters of the physical treatment module, adsorption treatment module, biological treatment module, disinfection and aeration module, water quality monitoring module, and control and power system module are gradually adjusted. (2) Operation phase S1, Physical Processing Module External landscape water enters the physical treatment module of the outer ring of the annular column through the main inlet. The water to be treated passes through the coarse screen and fine screen in sequence to remove floating objects, large particles and suspended particles in the water, so as to improve the water transparency and provide clean water quality for subsequent treatment. S2, Adsorption Processing Module Water flows into the adsorption treatment module in the inner ring of the annular column through the outlet of the physical treatment module. The landscape water passes through the adsorption box containing modified zeolite and iron-based adsorbent packing in the adsorption treatment module in a counterclockwise direction. The modified zeolite adsorption box and the iron-based adsorbent packing adsorption box are used to adsorb ammonia nitrogen and phosphate in the landscape water, respectively, to reduce eutrophication of the water body. S3, Biological Processing Module After being treated by the adsorption module in the inner ring of the annular column, the landscape water flows into the biological treatment module in the outer ring of the annular column through the inlet of the biological treatment module. The biological treatment module is arranged in a ditch along the outer ring column. The biological treatment module is filled with a layer of gravel, a layer of expanded clay, a layer of soil and aquatic plants from bottom to top. The landscape water flows through the aquatic plant area with well-developed root systems in the outer ring ditch, further removing nitrogen and phosphorus from the water. S4, Disinfection Aeration Module After being treated by the biological treatment module, the landscape water flows into the disinfection and aeration module through the inlet of the disinfection and aeration module on the outer ring of the annular column. The dissolved oxygen concentration in the water is increased by aeration, and the radiation from the ultraviolet disinfection lamp destroys the DNA of microorganisms, achieving a sterilization effect and further treating the landscape water. S5, Control and Power System Module The control and power system module is located above the top cover of the disinfection and aeration treatment module. The control panel allows real-time monitoring of the influent water quality and system water level. The control panel also controls the inlet and outlet solenoid valves to adjust the influent and effluent flow rates, the retention time of the landscape water treatment, the aeration rate, and the rotation of the motor on the central turntable of the adsorption treatment module, dynamically adjusting the operating parameters of each module. A photovoltaic panel is installed on top of the adsorption treatment module. This serves two purposes: firstly, it prevents external debris from entering the adsorption treatment module and affecting system operation; secondly, it converts electrical energy into stored energy in the battery to power the system's operation, providing power to the electromagnetic water flow valves, water quality sensors, water level sensors, motors, aerators, UV lamps, and control system. Its characteristic is that it further includes: (3) Maintenance phase S1. Regularly clean up debris and deposits intercepted in the physical processing module to prevent impurities from accumulating; S2. Regularly check the inlet and outlet water quality. After prolonged use, the adsorbent will reach adsorption saturation. When the effluent water quality deteriorates, initiate the replacement of a single adsorption box. To replace a single adsorption box, close the inlet and outlet electromagnetic water flow valves via the control panel, open the cover of the adsorption treatment module, remove the impermeable plate inserted into the first horizontal adsorption box on the left, and insert it into the impermeable plate slot of the second adsorption box (rotating counterclockwise). Remove the first adsorption box that has reached saturation, and install a new box containing the same adsorption packing. Operate the motor on the control panel to rotate the central turntable clockwise. Driven by the central turntable, the adsorption boxes slide along the inner and outer slide rails via the bottom pulleys. The second adsorption box will automatically stop after rotating to the left horizontal position. Close the cover of the adsorption treatment module. This method maximizes the adsorption effect of each adsorption box in the adsorption treatment module and avoids waste of adsorbent. S3. Check the health status of the plants in the biological treatment module. The biological treatment module controls the flow rate and direction of the water appropriately, providing sufficient time and space to allow the plant roots to fully contact the pollutants in the water, thereby increasing the water purification efficiency. The plants in the biological treatment module are regularly pruned and managed to maintain the vitality and adsorption capacity of the roots. The water flow in the ditch is kept unobstructed to prevent excessive growth of plant roots from affecting the water flow. S4. Take out the regularly replaced saturated adsorption chamber for regeneration to maintain nitrogen and phosphorus removal efficiency; the regenerated adsorbent can then be reused.

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