An artificially enhanced aquatic ecosystem restoration system

Abstract

This utility model discloses an artificial enhanced aquatic ecosystem restoration system, mainly relating to the field of aquatic ecosystem restoration technology. The artificial enhanced aquatic ecosystem restoration system of this utility model is characterized by comprising a pretreatment system, an enhanced denitrification system, an artificial wetland system, a main control system, and a power supply system. The artificial enhanced aquatic ecosystem restoration system of this utility model has high removal efficiency for suspended solids, organic matter, and pollutants such as nitrogen and phosphorus in water bodies. Compared with existing technologies, this utility model has advantages such as enhanced denitrification, high integration, low carbon emissions and energy saving, good treatment effect, and low operating cost.

Description

Technical Field

[0001] This utility model relates to the field of water ecological restoration technology, specifically an artificial enhanced water ecological restoration system. Background Technology

[0002] Constructed wetlands are artificially constructed and controlled wetland-like surfaces. Wastewater and sludge are systematically introduced onto these artificial wetlands, and the wastewater and sludge flow in a specific direction. The treatment of pollutants such as organic matter, nitrogen, and phosphorus in the water relies on the synergistic physical, chemical, and biological processes of soil, artificial media, plants, and microorganisms. As a downstream ecological restoration facility for wastewater treatment plants, constructed wetlands offer significant advantages such as low investment and low operating costs. They can fully utilize the productive potential of resources, prevent further environmental pollution, and further improve the quality of the living environment through their landscaping effects.

[0003] In wastewater treatment plant effluent, pollutants are mainly small-molecule dissolved organic matter and nutrients such as nitrogen and phosphorus. Constructed wetlands, as a bioremediation method, are generally not very effective at removing organic matter and total nitrogen pollutants, and cannot further improve water quality. At the same time, when the content of nutrients such as nitrogen and phosphorus in the water is high, it is easy for microorganisms and algae to proliferate rapidly in the wetland, causing filter media to become clogged, which in turn increases the cost of wetland maintenance. Utility Model Content

[0004] To overcome the problems and defects in existing technologies, this invention provides an artificial enhanced aquatic ecological restoration system. It utilizes enhanced biochemical treatment technology and autotrophic denitrification to strengthen the removal of organic matter and total nitrogen from wastewater treatment plant effluent. Subsequently, through an artificial wetland system, aided by packing materials, microbial systems, and aquatic plants, low-concentration pollutants in the effluent are further removed, achieving the goal of improving effluent quality and the ecological environment. This invention is simple to operate, easy to maintain, and has good treatment effects. Furthermore, by using solar panels in conjunction with batteries, it can achieve green and low-carbon operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An artificial enhanced aquatic ecosystem restoration system is characterized by comprising a pretreatment system, an enhanced denitrification system, an artificial wetland system, a main control system, and a power supply system. The pretreatment system, located upstream of the enhanced denitrification system, includes an enhanced biochemical treatment zone and a sedimentation zone. The pretreatment system has an inlet at its top, and the biochemical treatment zone has an aeration device at its bottom, with external blowers and pipelines. The sedimentation zone has a sludge hopper at its bottom, with valves, a sludge pump, and sludge pipes at its bottom. The pretreatment system and the enhanced denitrification system are connected via pipelines. The enhanced denitrification system has a backwashing device at its bottom, with its control system located within the main control system. The enhanced denitrification system has an outlet at its other end, which is connected to the artificial wetland system. The power supply system includes solar panels located on an external platform. The solar panels work in conjunction with batteries, and the charging control between them is completed by a solar charging control circuit located within the main control system, eliminating the need for an external power source.

[0007] As a further improvement of this utility model, the upper mounting bracket and liftable stirring mechanism of the enhanced biochemical treatment zone in the pretreatment system include a motor, a stirring rod, and stirring blades. The motor is mounted on the bracket; the top end of the stirring rod is connected to the motor, and the bottom end extends into the enhanced biochemical treatment zone; the stirring blades are evenly mounted on the stirring rod extending into the enhanced biochemical treatment zone; both the stirring rod and the stirring blades are corrosion-resistant.

[0008] As a further improvement of this utility model, aerobic activated sludge, as well as a composite powder carrier and functional microbial agents with microbial affinity are added to the enhanced biochemical treatment zone.

[0009] As a further improvement of this utility model, the enhanced denitrification system is provided with a biochemical packing zone, which is filled with pyrite granular packing and inoculated with activated sludge containing sulfur autotrophic denitrifying bacteria during system operation.

[0010] As a further improvement of this utility model, the constructed wetland system can be a subsurface flow type or a surface flow type, and the construction form and the type of filler are not limited.

[0011] Compared with existing technologies, this utility model provides an artificial enhanced aquatic ecosystem restoration system, which has the following beneficial effects:

[0012] (1) Using the pretreatment zone to carry out enhanced aerobic biochemical treatment of wastewater treatment plant effluent with biological enhancement can effectively remove suspended solids, colloids, ammonia nitrogen and organic pollutants in the water, which is conducive to improving water purification efficiency, while reducing the clogging of the packing in the subsequent enhanced denitrification system and artificial wetland system, and reducing operating costs.

[0013] (2) Autotrophic denitrification treatment using pyrite carriers in the enhanced denitrification system can quickly and efficiently remove dissolved nitrate pollutants from water bodies. At the same time, it can reduce total nitrogen in water without the need for external carbon sources. It is low-carbon and energy-saving, and can effectively avoid secondary pollution of water quality.

[0014] (3) This utility model utilizes an artificial wetland system to further remove low-concentration pollutants from the effluent, thereby improving the quality of the effluent and the ecological environment. At the same time, it utilizes an external solar panel and a battery to provide power to the system, eliminating the need for an external power source, further reducing operating costs and carbon emissions.

[0015] This invention proposes an artificial enhanced aquatic ecological restoration system that can effectively remove suspended solids, colloids, dissolved organic matter, nitrogen, phosphorus, and other pollutants from wastewater treatment plant effluent. While improving water quality and providing a beautiful landscape, it utilizes solar energy to provide power for system operation. It is a green, low-carbon, stable, and efficient enhanced aquatic ecological restoration system with broad application prospects in ecological environment restoration and improvement. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Pretreatment system; 2. Enhanced denitrification system; 3. Constructed wetland system; 4. Main control system; 5. Power supply system; 6. Enhanced biochemical treatment zone; 7. Sedimentation zone; 13. Inlet; 111. Aeration device; 112. Blower; 113. Pipeline; 114. Composite powder carrier and functional microbial agent; 121. Sludge hopper; 122. Valve; 123. Sludge pump; 124. Sludge pipeline; 115. Pipeline; 21. Backwashing device; 22. Control system; 24. Outlet; 51. Solar panel; 52. Battery; 53. Solar charging control circuit; 14. Support frame; 15. Liftable stirring mechanism; 151. Motor; 152. Stirring rod; 153. Stirring blade; 23. Biochemical packing zone; 231. Pyrite granular packing.

[0019] It is worth noting that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of an artificial enhanced aquatic ecological restoration system according to the present invention, including a pretreatment system 1, an enhanced denitrification system 2, an artificial wetland system 3, a main control system 4, and a power supply system 5. The pretreatment system 1 is located at the front end of the enhanced denitrification system 2, and includes an enhanced biochemical treatment zone 11 and a sedimentation zone 12. The pretreatment system 1 has an inlet 13 at the top, and the biochemical treatment zone 11 has an aeration device 111 at the bottom, with a blower 112 and pipelines 113 externally. The sedimentation zone 12 has a sludge hopper 121 at the bottom, with a valve 122, a sludge pump 123, and a sludge pipeline 124 at the bottom. The pretreatment system 1 and the enhanced denitrification system 2 are connected by a pipeline 115. The enhanced denitrification system has a backwashing device 21 at the bottom, and its control system 22 is located in the main control system 4. The enhanced denitrification system 2 has an outlet 24 at the other end, which is connected to the artificial wetland system 3. The power system 5 includes a solar panel 51 located on an external platform. The solar panel 51 works in conjunction with a battery 52, and the charging control between the two is completed by a solar charging control circuit 53 located in the main control system 4.

[0023] like Figure 1As shown, the pretreatment system 1 includes an upper bracket 14 and a liftable stirring mechanism 15 mounted on the enhanced biochemical treatment zone 11. The mechanism includes a motor 151, a stirring rod 152, and stirring blades 153. The motor 151 is mounted on the bracket 14. The top end of the stirring rod 152 is connected to the motor 151, and the bottom end extends into the enhanced biochemical treatment zone 11. The stirring blades 153 are evenly mounted on the stirring rod 152 extending into the enhanced biochemical treatment zone 11. Both the stirring rod 152 and the stirring blades 153 are corrosion-resistant.

[0024] like Figure 1 As shown, a composite powder carrier with microbial affinity and a functional microbial agent 114 are added to the enhanced biochemical treatment zone 11.

[0025] like Figure 1 As shown, the enhanced denitrification system 2 is provided with a biochemical packing zone 23, which is filled with pyrite particle packing 231.

[0026] like Figure 1 As shown, the constructed wetland system 3 adopts a subsurface flow constructed wetland.

[0027] In use, wastewater from the wastewater treatment plant enters the water ecological restoration system of this invention through a pipeline network, and then enters the pretreatment system 1 through inlet 13. With the aeration device 111 activated, aerobic activated sludge, microbial affinity composite powder carrier, and functional microbial agents 114 are added to the enhanced biochemical treatment zone 11 in the pretreatment system 1. During the artificially enhanced aerobic biochemical treatment process, dissolved organic matter, colloids, suspended solids, and some nitrogen and phosphorus pollutants in the water are purified and removed. Subsequently, sludge-water separation occurs in the sedimentation zone 12. The sludge is returned and excess sludge is discharged through the sludge pump 123 and sludge pipe 124. The supernatant after sludge-water separation enters the enhanced denitrification zone through pipe 115, where total nitrogen in the water is further removed through sulfur autotrophic denitrification. The deeply purified water then flows into the subsurface flow constructed wetland system 3, where the water quality is further purified through the action of artificial media, plants, and microorganisms. Finally, the effluent flows into the natural environment. This invention provides system power through an external solar panel and a storage battery, eliminating the need for an external power source. The solar charging control circuit, aeration device, backwashing device, and other electrical automatic control systems within the system are concentrated in the main control system 4, which can meet the requirements for automatic system operation.

[0028] This invention can effectively remove various types of pollutants such as suspended solids, dissolved organic matter, and nitrogen and phosphorus pollutants from the effluent of sewage treatment plants. It has high removal efficiency, good treatment effect, and is easy to operate. It is a green, low-carbon, stable and efficient enhanced water ecological restoration system with broad application prospects in ecological environment restoration and improvement.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An artificial augmented aquatic ecological remediation system, characterized in that, The system includes a pretreatment system (1), an enhanced denitrification system (2), an artificial wetland system (3), a main control system (4), and a power supply system (5). The pretreatment system (1) is located at the front end of the enhanced denitrification system (2) and includes an efficiency-enhancing biochemical treatment zone (11) and a sedimentation zone (12). The pretreatment system (1) has an inlet (13) at the top, and the biochemical treatment zone (11) has an aeration device (111) at the bottom, with a blower (112) and pipelines (113) installed externally. The sedimentation zone (12) has a sludge hopper (121) at the bottom, with a valve (122), a sludge pump (123), and a sludge pipeline (124) at the bottom of the sludge hopper (121). The pretreatment system (1) and the enhanced denitrification system (2) are connected by a pipe (115). The enhanced denitrification system is equipped with a backwashing device (21) at the bottom. The control system (22) of the backwashing device (21) is located in the main control system (4). The other end of the enhanced denitrification system (2) is equipped with an outlet (24), which is connected to the artificial wetland system (3). The power system (5) includes a solar panel (51) located on the external platform. The solar panel (51) is used in conjunction with a battery (52). The charging control between the two is completed by the solar charging control circuit (53) located in the main control system (4), without the need for an external power source.

2. The artificial augmented water ecological remediation system according to claim 1, characterized in that: The pretreatment system (1) has an upper bracket (14) and a liftable stirring mechanism (15) installed on the upper part of the enhanced biochemical treatment zone (11), including a motor (151), a stirring rod (152), and a stirring blade (153). The motor (151) is mounted on the bracket (14). The top end of the stirring rod (152) is connected to the motor (151), and the bottom end is inserted into the enhanced biochemical treatment zone (11). The stirring blade (153) is evenly installed on the stirring rod (152) inserted into the enhanced biochemical treatment zone (11). The stirring rod (152) and the stirring blade (153) are both corrosion-resistant structures.

3. The artificial augmented water ecological remediation system according to claim 1, characterized in that: Aerobic activated sludge, composite powder carrier with microbial affinity, and functional microbial agents (114) are added to the enhanced biochemical treatment zone (11).

4. The artificial augmented water ecological remediation system according to claim 1, characterized in that: The enhanced denitrification system (2) is equipped with a biochemical packing zone (23), which is filled with pyrite granular packing (231) and inoculated with activated sludge containing sulfur autotrophic denitrifying bacteria during system operation.

5. The artificial augmented water ecological remediation system according to claim 1, characterized in that: The constructed wetland system (3) can be subsurface flow or surface flow, and its construction form and filler type are not limited.

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