Integrated water quality improving system

Abstract

The utility model discloses an integrated water quality improving system. The integrated water quality improving system comprises a biological aerated filter, an assembled planting module, a fan unit and a water pump unit, the biological aerated filter adopts an upward flow process, and a clean water layer, a filter material layer, a supporting layer and a gas-water distribution layer are sequentially arranged on a tank body from top to bottom. The periphery of the biological aerated filter is sleeved with the assembled planting module through lifting columns, and the assembled planting module comprises a floating body layer, a substrate layer, aquatic plants and a water distribution pipe. An air bag is arranged at the bottom of the floating body layer; aquatic plants are planted on the substrate layer; the water distribution pipes are uniformly arranged on the surface of the substrate layer and are connected with a water outlet hose of the biological aerated filter. The biological aerated filter is coupled with aquatic plant planting, so that pollutants such as COD (Chemical Oxygen Demand), TN (Total Nitrogen), TP (Total Phosphorus), heavy metals and the like in a water body can be efficiently removed, the occupied area and the energy consumption are saved, and the device is convenient to overhaul and maintain and has outstanding application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and specifically relates to a high-efficiency integrated water quality improvement system. Background Art

[0002] At present, aerated biological filters and aquatic plant systems are often used to improve the water quality of water bodies such as rivers, ponds, and drainage pump station forebays. Considering the convenience of operation and maintenance, aerated biological filters are generally set up on the shore for bypass treatment, while aquatic plant systems are mostly constructed through ecological floating islands or gentle slopes along the coast. Bypass aerated biological filters will occupy additional land, have high requirements for water pump head and pipeline layout, and cannot efficiently remove TN from water bodies. A single aquatic plant system has limited effect on improving water quality, and harvesting and replanting require manual boating, which poses certain operational risks.

[0003] As the water quality assessment requirements for various water bodies become increasingly stringent, it is necessary to further optimize the water treatment process, which can not only effectively remove pollutants such as COD, TN, TP, and heavy metals in water bodies such as rivers, ponds, and drainage pump station forebays to ensure that water quality meets standards, but also save land and energy consumption, and facilitate inspection and maintenance. This is of great significance to maintaining the safety of the urban water environment and building a beautiful living environment. Summary of the invention

[0004] In response to the problems existing in the prior art, the utility model provides an integrated water quality improvement system, which couples the aerated biological filter with the aquatic plant system. It saves space, has low energy consumption, is easy to operate and maintain, and has a significant pollutant removal effect, and has outstanding application prospects.

[0005] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0006] An integrated water quality improvement system includes an aerated biological filter, an assembled planting module, a fan unit and a water pump unit. The aerated biological filter adopts an upward flow process, and from top to bottom, it is composed of a clear water layer, a filter material layer, a support layer and an air-water distribution layer;

[0007] Water outlet weirs are set around the top of the clear water layer, and the outlet hose is connected to the backwash wastewater pipe; the filter layer is filled with filter material, which is ceramsite, activated carbon and other high-specific surface porous filter material, and the active microorganisms loaded on it are used to efficiently remove COD, TN, TP and heavy metals in the water body; the supporting layer includes graded pebbles, which are conducive to the uniform distribution of air and water supply while carrying the upper filter material; the air and water distribution layer is directly connected with the air supply pipeline and water supply pipeline, and the top is opened to realize air and water supply into the supporting layer;

[0008] The aerated biological filter is connected to the assembled planting module via the water outlet hose, and the aerated biological filter is connected to the assembled planting module via the lifting column; the assembled planting module includes a floating layer, a substrate layer, aquatic plants and a water distribution pipe;

[0009] An air bag is provided at the bottom of the floating layer, and a working bridge is provided at the top; aquatic plants are planted on the substrate layer; water distribution pipes are evenly arranged on the surface of the substrate layer and connected to the outlet hose of the aerated biological filter to obtain a good water distribution effect.

[0010] Furthermore, the assembled planting module is designed as a mesh steel structure, and also includes a fixed sleeve and a lock; the fixed sleeve runs through the interior of the assembled planting module, and is socketed with the aerated biological filter lifting column to achieve a stable and close arrangement of the assembled planting module and the aerated biological filter; the lock is arranged on the surface of the assembled planting module to achieve a stable connection between adjacent assembled planting modules.

[0011] Furthermore, the fan unit includes a fan and an air supply pipeline, the air outlet of the air supply pipeline is evenly arranged in the air-water distribution layer; the fan provides process gas and backwash gas to the aerated biological filter through the air supply pipeline, and also includes a frequency converter for adjusting the air supply intensity. The fan is set on the shore for maintenance and repair. When the aerated biological filter is operating normally, the fan runs at a low frequency, and when the aerated biological filter needs to be backwashed, the fan is changed to high frequency operation.

[0012] Furthermore, the water pump unit includes a submersible pump and a water supply pipeline. The submersible pump provides process water and backwash water to the aerated biological filter through the water supply pipeline, and also includes a frequency converter for adjusting the water supply. The water pump is set in the water body near the aerated biological filter. When the aerated biological filter operates normally, the submersible pump operates at a low frequency, and the outlet water enters the assembled planting module through the outlet hose. When the aerated biological filter needs to be backwashed, the submersible pump is changed to high frequency operation, and the backwash wastewater is discharged into the surrounding water body through the backwash wastewater pipe.

[0013] Furthermore, the aerated biological filter tank body is a steel structure, and a detachable escalator is arranged on the side; the working bridge is used for replanting and harvesting of aquatic plants, and is also a passage connecting the detachable escalator of the aerated biological filter tank.

[0014] Furthermore, the lower part of the aerated biological filter tank body is a fixed support leg, and the fixed support leg penetrates into the bottom mud bearing layer to maintain the stability of the aerated biological filter tank.

[0015] Furthermore, the floating layer includes multiple independent air bags, and the damage of a single air bag will not affect the overall buoyancy. The matrix of the matrix layer includes soil, gravel, and biochar, which have good biological stability, can absorb nutrients, and are conducive to the survival of microorganisms.

[0016] Furthermore, the length of the water outlet hose is designed to have a certain margin to facilitate adaptation to water level changes. When the assembled planting module is located at the upper or lower part of the aerated biological filter tank, the water outlet hose is connected to the water distribution pipe.

[0017] Furthermore, aquatic plants are planted on the substrate layer, one or more of shiitake grass, calamus, and lily of the valley are planted on the periphery, and one or more of canna, red polygonum, and cattail are planted in the middle.

[0018] The utility model couples an aerated biological filter with aquatic plant planting, and the aerated biological filter can efficiently remove pollutants such as NH3-N, COD, TP, and heavy metals in the water body. The effluent of the aerated biological filter enters the matrix layer of the assembled planting module through the effluent hose and the water distribution pipe of the assembled planting module. The matrix layer is rich in denitrifying bacteria, and the NO3-N in the effluent of the aerated biological filter and the COD in the surrounding water body can be used for biological denitrification. The root secretions of aquatic plants are also a good supplement for carbon sources. Therefore, the system also has a good TN removal capacity, which can directly reduce the nitrogen load of the water body and slow down eutrophication. In addition, the simultaneous presence of NH3-N and NO3-N in the matrix layer is also very conducive to the growth of aquatic plants. While ensuring the landscape, the system can further enhance the ability to remove nitrogen and phosphorus pollutants. The main part of the aerated biological filter described in the system is directly placed in the water body, without additional land occupation, and also reduces the requirements for the pump head and the layout of the water inlet pipe. The system has a stable operating platform, convenient operation and maintenance, and has outstanding application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of an integrated water quality improvement system according to an embodiment of the utility model.

[0020] Figure 2 The utility model discloses an aerated biological filter tank of an integrated water quality improvement system.

[0021] Figure 3 It is an assembled planting module of an integrated water quality improvement system of an embodiment of the utility model.

[0022] Figure 4 It is a schematic diagram of the operation of the integrated water quality improvement system of an embodiment of the utility model at a high water level.

[0023] Figure 5 It is a schematic diagram of the operation of the integrated water quality improvement system of an embodiment of the utility model at low water level.

[0024] Figure 6 It is a schematic diagram of the connection between the lifting column and the fixed sleeve of the integrated water quality improvement system of the embodiment of the utility model.

[0025] Figure 7 It is a schematic diagram of the lock of the integrated water quality improvement system of the present usage information embodiment.

[0026] The meanings of the reference numerals in the figure are as follows: 1. aerated biological filter, 1.1. detachable escalator, 1.2. clean water layer, 1.3. filter material layer, 1.4. supporting layer, 1.5. air-water distribution layer, 1.6. fixed support legs, 1.7. outlet weir, 1.8. outlet hose, 1.9. backwash wastewater pipe, 1.10. lifting column, 2. assembled planting module, 2.1. floating layer, 2.1.1. separate air bag, 2.1.2. working bridge, 2.2. matrix layer, 2.3. aquatic plants, 2.4. water distribution pipe, 2.5. fixed sleeve, 2.6. lock, 3. fan unit, 3.1. fan, 3.2. air supply pipeline, 4. water pump unit, 4.1. submersible pump, 4.2. water supply pipeline. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] See also Figure 1 , an integrated water quality improvement system, including an aerated biological filter 1, an assembled planting module 2, a fan unit 3 and a water pump unit 4.

[0029] See also Figure 1 , Figure 2 The aerated biological filter 1 adopts an upward flow process. The tank body is a steel structure with a detachable escalator 1.1 on the side. The tank body is composed of a clean water layer 1.2, a filter material layer 1.3, a supporting layer 1.4 and an air-water distribution layer 1.5 from top to bottom. The lower part of the tank body is a fixed support 1.6, which penetrates into the bottom mud bearing layer to maintain the stability of the aerated biological filter 1. An outlet weir 1.7 is arranged around the top of the clean water layer 1.2, and connects the outlet hose 1.8 with the backwash wastewater pipe 1.9. The aerated biological filter 1 is connected to the assembled planting module 2 through the outlet hose 1.8. The length of the outlet hose 1.8 is designed with a certain margin to facilitate adaptation to water level changes. See Figure 6 The aerated biological filter 1 is connected to the assembled planting module 2 through the lifting column 1.10 on all sides. The filter layer 1.3 is filled with high specific surface porous filter materials such as ceramsite and activated carbon, and the active microorganisms loaded thereon are used to efficiently remove COD, NH3-N, TP and heavy metals in the water body. The supporting layer 1.4 is composed of graded pebbles, which is conducive to the uniform distribution of air and water supply while carrying the upper filter material. The air and water distribution layer 1.5 is directly connected to the air supply pipeline and water supply pipeline, and the top is opened to realize air and water supply into the supporting layer 1.4.

[0030] See also Figure 1 , Figure 3The assembled planting module 2 is a mesh steel structure design, specifically composed of a floating layer 2.1, a matrix layer 2.2, aquatic plants 2.3, a water distribution pipe 2.4, a fixed sleeve 2.5 and a lock 2.6. The bottom of the floating layer 2.1 is composed of multiple individual air bags 2.1.1, and damage to a single air bag will not affect the overall buoyancy. The upper part of the floating layer 2.1 is a working bridge 2.1.2, which is used for replanting and harvesting aquatic plants 2.3, and is also a channel connecting the detachable escalator 1.1 of the aerated biological filter. The main body of the matrix layer 2.2 is a matrix such as soil, gravel, and biochar, which has good biological stability, can absorb nutrients, and is conducive to the survival of microorganisms. Aquatic plants are planted on the matrix layer 2.2, and short plants such as mushroom grass, calamus, and lily are planted on the periphery. Tall plants such as canna, red polygonum, and cattail are planted in the middle to obtain a better landscape effect. The water distribution pipes 2.4 are evenly arranged on the surface of the substrate layer 2.2 and connected to the aerated biological filter outlet hose 1.8 to obtain a good water distribution effect. Figure 6 The fixed sleeve 2.5 passes through the interior of the assembled planting module 2 and is connected with the aerated biological filter lifting column 1.10, so that the assembled planting module 2 and the aerated biological filter 1 are arranged firmly and closely; see Figure 7 The lock buckle 2.6 is arranged on the surface of the assembled planting module 2 to achieve a stable connection between adjacent assembled planting modules 2.

[0031] See also Figure 1 The fan unit 3 includes a fan 3.1 and an air supply pipeline 3.2, which are arranged on the shore for maintenance and overhaul. The fan 3.1 provides process gas and backwash gas to the aerated biological filter 1 through the air supply pipeline 3.2, and the air supply intensity is adjusted by the frequency converter. When the aerated biological filter 1 operates normally, the fan 3.1 operates at a low frequency. When the aerated biological filter 1 needs to be backwashed, the fan 3.1 changes to a high frequency operation.

[0032] See also Figure 1 The water pump unit 4 includes a submersible pump 4.1 and a water supply pipeline 4.2, which are arranged in the water body near the aerated biological filter 1. The submersible pump 4.1 provides process water and backwash water to the aerated biological filter 1 through the water supply pipeline 4.2, and the water supply is adjusted by the frequency converter. When the aerated biological filter 1 operates normally, the submersible pump 4.1 operates at a low frequency, and the outlet water enters the assembled planting module 2 through the outlet hose 1.8. When the aerated biological filter 1 needs to be backwashed, the submersible pump 4.1 changes to high frequency operation, and the backwash wastewater is discharged into the surrounding water body through the backwash wastewater pipe 1.9.

[0033] See also Figure 4 When the water level is high, the outlet hose 1.8 of the aerated biological filter of this system is not straightened, and the assembled planting module 2 is close to the top of the aerated biological filter 1. At this time, if the aerated biological filter 1 needs to be repaired, it is not necessary to use the detachable escalator 1.1. Figure 5When the water level is low, the outlet hose 1.8 of the aerated biological filter of the system is basically straightened, and the assembled planting module 2 is far away from the top of the aerated biological filter 1. At this time, if the aerated biological filter 1 needs to be repaired, it can be carried out with the help of the detachable escalator 1.1.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. An integrated water quality improvement system, characterized in that: It includes aerated biological filter, assembled planting module, fan unit and water pump unit; The aerated biological filter adopts an upward flow process, and from top to bottom, it comprises a clear water layer, a filter material layer, a support layer, and an air-water distribution layer; Water outlet weirs are arranged around the top of the clean water layer, and the outlet hose is connected to the backwash wastewater pipe; the filter material layer is filled with filter material; the supporting layer includes graded pebbles; the air-water distribution layer is directly connected to the air supply pipeline and the water supply pipeline, and the top is opened to realize air supply and water supply into the supporting layer; The aerated biological filter is connected to the assembled planting module via the outlet hose, and the aerated biological filter is sleeved with the assembled planting module via lifting columns; the assembled planting module includes a floating layer, a substrate layer, aquatic plants and a water distribution pipe; The bottom of the floating body layer is provided with an air bag, and the upper part is a working bridge; aquatic plants are planted on the substrate layer; the water distribution pipes are evenly arranged on the surface of the substrate layer and connected with the outlet hose of the aerated biological filter.

2. The integrated water quality improvement system according to claim 1, characterized in that: The assembled planting module is designed as a mesh steel structure and also includes a fixing sleeve and a locking buckle; The fixing sleeve passes through the interior of the assembled planting module and is sleeved with the lifting column of the aerated biological filter, so that the assembled planting module and the aerated biological filter are arranged firmly and closely; the locking buckle is arranged on the surface of the assembled planting module to realize a firm connection between adjacent assembled planting modules.

3. The integrated water quality improvement system according to claim 1, characterized in that: The fan unit includes a fan and an air supply pipeline, the air outlets of the air supply pipeline are evenly arranged in the air-water distribution layer; the fan provides process gas and backwash gas to the aerated biological filter through the air supply pipeline, and also includes a frequency converter for adjusting the air supply intensity.

4. The integrated water quality improvement system according to claim 1, characterized in that: The water pump unit comprises a submersible pump and a water supply pipeline. The submersible pump provides process water and backwash water to the aerated biological filter tank through the water supply pipeline, and also comprises a frequency converter for adjusting the water supply amount.

5. The integrated water quality improvement system according to claim 1, characterized in that: The body of the aerated biological filter is a steel structure, and a detachable escalator is arranged on the side; the detachable escalator is used to form a passage connected to the working bridge.

6. The integrated water quality improvement system according to claim 1, characterized in that: The lower part of the aerated biological filter tank body is a fixed support leg, and the fixed support leg penetrates into the bottom mud bearing layer.

7. The integrated water quality improvement system according to claim 1, characterized in that: The floating layer includes a plurality of independent air bags.

8. The integrated water quality improvement system according to claim 1, characterized in that: The length of the water outlet hose is designed to have a certain margin. When the assembled planting module is located at the upper part or the lower part of the aerated biological filter, the water outlet hose is connected to the water distribution pipe.

9. The integrated water quality improvement system according to claim 1, characterized in that: The aquatic plants planted on the substrate layer are one or more of Lentinus edodes, Acorus calamus and Zygophyllum in the periphery, and one or more of Canna indica, Polygonum rubrum and Cattail in the middle.

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