CN106630163A - Floating type biological grid purification device for landscape water body - Google Patents

Abstract

The invention discloses a floating biological grid purification device for a landscape water body, comprising a floating device, a connecting device and a biological grid device, the floating device is arranged on the water surface, the biological grid device is arranged under the water surface, the middle part of the lower end of the floating device and the biological grid device The middle part of the upper end is provided with a connecting device. By setting the bio-barrier as a floating structure, it is convenient to adjust its position in the landscape water body, especially for the treatment of the landscape water body with poor water fluidity; and the depth of the bio-barrier in the water body can be adjusted according to the depth of the landscape water body and the use requirements In addition, aquatic plant planting tanks are set up at the lower end of the biological fence to promote water exchange, DO (dissolved oxygen) and nutrient exchange, and can provide shelter, habitat, bait and spawning places for fish, shrimp and shellfish, forming a virtuous cycle. aquatic environment. The invention has a simple structure, can adjust the placement depth, reduces the number of biological grid devices used, improves the water pollution treatment efficiency, and can realize repeated use.

Description

A floating bio-barrier purification device for landscape water

technical field

The invention belongs to the technical field of environmental engineering, and in particular relates to a floating biological screen purification device for landscape water.

Background technique

With the process of urbanization and industrial and agricultural pollution, the water quality of urban landscape water body shows a clear downward trend, and destroys the balance of river and lake ecosystems, thus causing algal blooms in water bodies, resulting in deterioration of water quality, deterioration of taste and smell, and dissolved oxygen. Depletion, reduction of transparency, reduction of fishery production, blockage of waterways, toxicity to humans and animals, and loss of urban landscape water functions. Therefore, effective measures should be taken to inhibit the growth of algae, improve urban landscape water quality, ensure regional water security, and create a harmonious environment for people and animals. A natural and harmonious water environment is of great significance.

The water quality maintenance of the landscape water body is mainly to control the content of COD (chemical oxygen demand), NH3-N (ammonia nitrogen), TN (total nitrogen) and TP (total phosphorus) in the water body and the growth of algae to keep the water body clear, clean and Water quality throughout the body of water. At present, there are many methods applied to landscape water treatment, including physical, chemical and biological methods. Among them, the physical method is to use physical effects to separate the suspended pollutants in the polluted water body, such as gravity separation, air flotation, reverse osmosis, centrifugal separation, evaporation, etc.; the chemical method is to use chemical reactions to separate, transform, destroy or Recover pollutants in polluted water bodies and convert them into harmless substances, such as coagulation, neutralization, redox, adsorption, electrodialysis, stripping, extraction and other processes. The main applications of chemical methods in landscape water bodies include coagulation Precipitation and chemical algae killing methods, etc.; biological methods mainly include biological contact oxidation, land treatment systems, constructed wetlands, and adding microbial agents. The above-mentioned technologies have been applied in water purification and ecological restoration of urban landscape water bodies at home and abroad, and have achieved good results in production and application, but there are problems such as high power consumption, high operating costs, and high risk of secondary pollution.

The bio-barrier is a near-natural ecological water purification technology. The purification process of the bio-barrier to the pollutants in the water body is the result of a variety of physical, chemical and biological effects. Among them, the filler has a good resistance to the particulate pollutants in the water body. Retention, filtration, adsorption, precipitation and purification, a large number of microorganisms (biofilm) growing on the filler form a complex ecosystem composed of multiple trophic levels such as bacteria, fungi, algae, protozoa, and metazoans in the vertical direction. , in the lateral direction, along the direction from the liquid to the carrier, constitutes a suspension aerobic type, attached aerobic type, attached facultative oxygen type, attached anaerobic type with various activities, respiration types, and nutritional types of microbial systems , this area is the functional subject of pollutant decomposition and transformation, and they form a complex food chain (web) together with animals and plants, which has a rapid and efficient purification effect on pollutants in water bodies. The bio-barrier filler has good elasticity, which is suitable for the complex and changeable hydrodynamic conditions of the river water body, and will not cause the blockage of the purification device and the shedding of a large number of biofilms. According to the pollution characteristics, degree and purification requirements of the water body, the bio-barrier can be produced in a modular manner, and can be flexibly arranged in the water bodies of rivers and lakes. Artificial reefs can provide shelter, habitat, feeding and spawning places for fish, shrimp and shellfish, forming a virtuous cycle of water ecological environment.

In the prior art, we have developed a combined artificial reef-biological fence water purification device, the authorized announcement number is: CN 201762172 U, which can not only give fish Shrimp and shellfish provide shelter, habitat, bait and spawning places, forming a virtuous cycle of water ecological environment, and can realize the purification of landscape water, and have achieved good results in water purification. However, when the above-mentioned device is in use, it can only be sunk into the designated place and placed continuously for 1-3 months, it cannot be easily moved, and it can only be used for purification of relatively fixed waters; and in the process of use Among them, in a relatively stagnant landscape water body, it may be necessary to place multiple water bodies according to the size of the water body, which also increases the production cost and maintenance cost of the water body purification equipment; since the bio-barrier needs to be set under the water surface for 10- For a depth of 20 cm, the purification equipment needs to be customized according to the depth of the landscape water body, and the equipment set according to different depths is difficult to apply to landscape water bodies of other depths, and the reuse effect is poor.

Therefore, there are above-mentioned technical defects in the prior art, which is a technical problem to be solved urgently by those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide a floating bio-barrier purification device for landscape water, which aims to solve the problem of poor mobility in the prior art, resulting in long processing time, and multiple installations may be required according to the size of the landscape water body, which increases the cost of water purification. After the cost and the size of the bio-barrier purification equipment produced are determined, it is difficult to apply to other problems in landscape water bodies of different depths.

The present invention is achieved like this:

A floating bio-barrier purification device for a landscape water body, comprising a floating device, a connecting device and a bio-barrier device. There is a connection device in the middle of the upper end of the grid device;

The floating device includes a frame, a partition, an airbag placement cavity, an airbag and a pull ring. The frame is a cuboid frame, and the frame is provided with staggered partitions, and an airbag is formed between adjacent partitions. Placement chamber, the airbag placement chamber is provided with an airbag, the upper end of the frame is fixed with a pull ring, the middle part of the lower end of the frame is provided with a crossbeam, and the middle part of the crossbeam is fixedly connected to the upper end of the connecting device;

The biological grid device includes a biological grid bracket, a biological rope, a fixed pipe and an aquatic plant planting groove, the biological grid bracket is a cube frame body, and the upper and lower ends of the biological grid bracket are provided with a plurality of fixed pipes arranged in parallel, A plurality of biological ropes are arranged between the fixed pipe at the upper end and the fixed pipe at the lower end, and the lower end of the biological grid support is provided with a planting groove for aquatic plants, and the planting groove for aquatic plants is arranged between the two fixed pipes Between and parallel to the fixed pipe, a crossbeam is arranged in the middle of the upper end of the bio-barrier, and the middle part of the crossbeam is fixedly connected to the lower end of the connecting device.

Preferably, the connection device includes a sleeve, a pole, a fixing hole and a fixing pin, the sleeve is fixed at the lower end of the middle part of the beam of the floating device and the opening of the sleeve is downward, and the outer wall of the sleeve is provided with Multiple sets of radial fixing holes are arranged vertically. The support rod is fixed in the middle of the upper beam of the bio-barrier device. The support rod is provided with multiple radial fixing holes and multiple sets of The fixing holes are arranged vertically, the poles are inserted into the casing, and fixing pins are inserted in the corresponding fixing holes.

Preferably, the frame, partition and beam are made of light aluminum alloy, and the frame, partition and beam are fixed by welding.

Preferably, the bio-grid bracket is made of carbon steel, the fixed pipe is a PVC pipe, the bio-grid bracket is provided with openings, and the two ends of the fixed pipe are inserted into the openings of the bio-grid bracket .

Preferably, the aquatic plant planting trough is a stainless steel trough with a U-shaped cross section, and both ends of the aquatic plant planting trough are welded to the biological grid support.

Preferably, it also includes an annular groove, the fixing tube is provided with a plurality of annular grooves, and the end of the biological rope is bound in the annular groove.

Preferably, the fixing hole is provided with an internal thread, and the fixing pin is provided with an external thread, and the fixing hole and the fixing pin are threaded.

The beneficial effect of the present invention is that: compared with the prior art, the present invention sets the bio-barrier as a floating structure, thereby facilitating adjustment of its position in the landscape water body, especially for landscape water bodies with poor fluidity, and improves the treatment efficiency. Efficiency; and the depth of the bio-barrier in the water body can be adjusted according to the depth of the landscape water body and the use requirements, which is convenient to use; moreover, an aquatic plant planting groove is set at the lower end of the bio-barrier, which can provide shelter, habitat, feeding and protection for fish, shrimp and shellfish. The spawning place forms a virtuous cycle of water ecological environment. The invention has a simple structure, is convenient to move, can adjust the placement depth of the bio-barrier, reduces the number of bio-barrier devices used, improves the treatment efficiency, and can realize repeated use.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2 is an exploded view of the connecting device of the present invention;

Fig. 3 is the partially enlarged schematic view of the annular groove on the fixed pipe of the present invention;

Fig. 4 is the structural representation of aquatic plant planting groove of the present invention;

In the figure: 1 floating device; 11 frame; 12 partition; 13 airbag placement chamber; 14 airbag; 15 pull ring; 2 connecting device; 21 sleeve; ; 31 biological grid bracket; 32 biological rope; 33 fixed pipe; 34 aquatic plant planting groove; 4 beam; 5 annular groove.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Example 1

Figures 1, 3 and 4 show a floating bio-barrier purification device for a landscape water body of the present invention, including a floating device 1, a connecting device 2 and a bio-barrier device 3, the floating device 1 is located on the water surface, and the The biological grid device 3 is arranged under the water surface, and the middle part of the lower end of the floating device 1 and the upper middle part of the biological grid device 3 are provided with a connecting device 2; the buoyancy is formed on the water surface by the floating device 1, and the biological grid device 3 connected to the connecting device 2 Pulling, the biological barrier device 3 will stay at a certain depth below the water surface under the action of its own gravity, buoyancy and upward pulling force, and the depth of its setting can be adjusted by adjusting the buoyancy of the floating device 1 and connecting The length of the device 2 is adjusted.

Further, the floating device 1 includes a frame 11, a partition 12, an airbag placement cavity 13, an airbag 14 and a pull ring 15. The frame 11 is a rectangular parallelepiped frame, and the frame is passed through a light aluminum alloy tube. It is welded, and a cavity structure is formed inside. The frame 11 is provided with partitions 12 arranged in a staggered manner, and the partitions 12 are also made of light aluminum alloy. The frame 11 is fixedly connected, and an airbag placement cavity 13 is formed between the adjacent partitions 12. The airbag placement cavity 13 is provided with an airbag 14, and the airbag 14 is an inflatable airbag, which is inserted into the airbag placement cavity. 13, since the outer wall of the airbag 14 is in close contact with the partition 12 or the frame 11, and a certain pressure and friction force are generated, the airbag 14 will not come out of the airbag placement cavity 13 after being put into the water. , and maintain the stability of the installation. The upper end of the frame 11 is fixed with a draw ring 15, and the draw ring 15 is fixedly connected with the frame 11. When in use, a stay rope can be set on the draw ring 15, and a ground anchor can be set on the stay rope at the land end, so that the ground anchor can be fixed At a certain position, the working radius of the device can be determined, and the position can be changed to treat different areas of the water body. The middle part of the lower end of the frame 11 is provided with a crossbeam 4, the crossbeam 4 is set as a light aluminum alloy plate structure, the two ends are welded and fixed with the frame 11, and the middle part of the crossbeam 4 is fixedly connected to the upper end of the connecting device 2, thereby forming a stable connection structure.

The biological grid device 3 includes a biological grid bracket 31, a biological rope 32, a fixed pipe 33 and an aquatic plant planting groove 34. The biological grid bracket 31 is a cube frame body, which is welded from the end to the end of a carbon steel tube body. The upper and lower ends of the bio-grid bracket 31 are provided with a plurality of fixed pipes 33 arranged in parallel. in the opening of the biogrid support 31 . A plurality of biological ropes 32 are arranged between the fixed pipe 33 at the upper end and the fixed pipe 33 at the lower end. Groove 5, the fixing tube 33 is provided with a plurality of annular grooves 5, and the end of the biological rope 32 is bundled in the annular groove 5 to prevent deviation and loosening. The lower end of the biological grid support 31 is provided with an aquatic plant planting groove 34, further, the aquatic plant planting groove 34 is a stainless steel groove with a U-shaped cross section, and the two ends of the aquatic plant planting groove 34 are welded on the biological grid support 31 on. The aquatic plant planting groove 34 is arranged between the two fixed pipes 33 and is arranged parallel to the fixed pipe 33, so that the aquatic plant planting groove 34 is arranged in the middle of the fixed pipe 33 at intervals, and planting is arranged in the aquatic plant planting groove 34. A variety of aquatic plants are planted in the soil, which can provide shelter, habitat, bait and spawning places for fish, shrimp and shellfish, forming a virtuous cycle of water ecological environment. The middle part of the upper end of the biological barrier is provided with a crossbeam 4, and the middle part of the crossbeam 4 is fixedly connected to the lower end of the connecting device 2, so that the connection between the biological barrier device 3 and the floating device 1 can be realized through the connecting device 2.

The concrete usage principle of this embodiment is as follows:

A plurality of airbags 14 are arranged in the airbag placement cavity 13 of the floating device 1, and the buoyancy formed by the airbags 14 floats the floating device 1 above the water surface, thereby forming an upward pulling force on the biological barrier device 3 arranged below the water surface, Prevent the biological grid device 3 from sinking to the bottom of the pond; in the aquatic plant planting tank 34 on the biological grid device 3, at first cultivate aquatic plants in the laboratory, after making it grow to a certain extent, it can be moved to the landscape to be treated In the water body, the purpose of purifying the water body and providing shelter, habitat, feeding and spawning places for fish, shrimp and shellfish is achieved.

Example 2

Further, as shown in Figure 2, the connection device 2 includes a sleeve 21, a pole 22, a fixing hole 23 and a fixing pin 24, the sleeve 21 is fixed on the lower end of the middle part of the beam 4 of the floating device 1 and sleeved The opening of the tube 21 is downward, and the outer wall of the casing 21 is provided with multiple sets of radial fixing holes 23 and the multiple sets of fixing holes 23 are arranged vertically. In the middle, the pole 22 is provided with a plurality of radially arranged fixing holes 23 and multiple sets of fixing holes 23 are arranged vertically, the pole 22 is inserted into the casing 21, and the corresponding fixing holes 23 are inserted A fixing pin 24 is provided. Therefore, according to the needs of landscape water purification, the extension length of the connecting device 2 can be adjusted, so that the adjustment of the depth of the biological barrier device 3 in the water can be realized, and the needs of different water purification can be met.

Furthermore, in order to improve the connection stability between the casing 21 and the pole 22, the fixing hole 23 is provided with an internal thread, and the fixing pin 24 is provided with an external thread, and the fixing hole 23 and the fixing pin 24 is a thread fit, which improves the connection stability and effectively prevents loosening.

Example 3

Experiment of landscape water body in a park in Hongqiao District, Tianjin:

The length × width × height of the biological barrier device 3 is 1200mm × 1200mm × 1200mm, and multiple varieties of aquatic plants are planted in the aquatic plant planting tank 34, and the above-mentioned aquatic plants are transplanted into the aquatic plant planting tank 34 after being cultivated under laboratory conditions It can provide natural activity space for fish and other aquatic animals, and at the same time, use fish and other aquatic animals to filter protozoa, swallow organic particles and small benthic animals inside the biological fence, so as to extend the food chain and decompose organic matter. By adjusting the telescopic length of the upper casing 21 and the pole 22 of the connecting device 2, the biological grid device 3 can be positioned at 20-25 cm below the water surface (its depth position will change due to the impact of water body shaking, wind blowing, etc. ), the range of its up and down shaking is 15-30cm, the filler is biological rope 32, which is installed on the biological grid support 31, and the pull ring 15 on the floating device 1 can make the working of the floating device 1 The radius is fixed and changes its setting position every 15 days. After 2 months of successful biofilm formation, the water in and out of the system was monitored, and the results showed that the system's removal rate of TN in the water body was maintained at 30%, the removal rate of TP was maintained at 35%, and the removal rate of COD was maintained at 65%. .

The comparative test adopts the combined artificial fish reef-biological grid water purification device with the authorized announcement number: CN 201762172 U. Specifically, it is set at 20cm below the water surface. The water in and out of the system is monitored, and the results show that the system has a TN removal rate of 25%, a TP removal rate of 25%, and a COD removal rate of 52%.

The treatment effects of the two are compared in Table 1 below:

Table 1 is a comparison of the effects of the floating bio-fence device 3 system and the combined artificial reef-bio-fence system in treating eutrophic water bodies

After the above comparison, it is found that the treatment effect of the floating bio-fence using this application document is significantly higher than that of the artificial reef-bio-fence treatment method. The reasons for the above results are analyzed as follows:

(1) The floating bio-barrier can float and swim in a certain area, instead of being fixed at a certain place for static treatment, so that the water body in a certain area can be treated at different points to prevent the water body from flowing. (2) the aquatic plant planting tank 34 provided can provide shelter, habitat, bait and spawning places for fish, shrimp and shellfish, forming a virtuous cycle of water ecological environment, fish Aquatic animals such as humans shuttle back and forth between the bio-barrier fillers, which will promote the exchange of water, DO (dissolved oxygen) and nutrients in the space structure of the bio-barrier, and reduce the stagnant water area caused by too dense biofilm; (3) in the water body When sloshing occurs, the biobarrier can also move in the vertical direction, agitate the water body, and can disrupt the DO gradient formed by the reoxygenation of the water surface from the surface to the bottom DO gradually decreases, accelerate air reoxygenation, and increase the oxygen content in the water body (4) There will be a certain DO concentration gradient in the biofilm on the filler from the inside to the outside, and there will be an aerobic and anoxic environment in the biobarrier at the same time, and nitrification and denitrification can be carried out simultaneously in different spaces, which is beneficial to sewage. The removal of total nitrogen, while the filler can effectively remove phosphorus in sewage, and the concentration of total phosphorus in the effluent is also reduced.

The beneficial effect of the present invention is that: compared with the prior art, the present invention sets the bio-barrier as a floating structure, thereby facilitating adjustment of its position in the landscape water body, especially for landscape water bodies with poor fluidity, and improves the treatment efficiency. Efficiency; and the depth of the bio-barrier in the water body can be adjusted according to the depth of the landscape water body and the requirements of use, which is convenient to use; and an aquatic plant planting tank is set at the lower end of the bio-barrier to promote water exchange, DO and nutrient exchange, which can be used for fish, shrimp and Shellfish provide shelter, habitat, feeding and spawning places, forming a virtuous cycle of water ecological environment. The invention has a simple structure, is convenient to move, can adjust the placement depth of the bio-barrier, reduces the number of bio-barrier devices used, improves water pollution treatment efficiency, and can realize repeated use.

Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay any creative effort. Various modifications or deformations that can be made by labor are still within the protection scope of the present invention.

Claims (7)

1. the floatation type biological grid purifier of a kind of landscape water body, it is characterised in that：Including flotation gear, attachment means and life Thing grid device, on the water surface, the biological grid device is located at underwater, the flotation gear lower end middle part to the flotation gear Attachment means are provided with biological grid device upper center；

The flotation gear includes framework, dividing plate, air bag placed cavity, air bag and draw ring, and the framework is cuboid support body, described The dividing plate being crisscross arranged is provided with framework, air bag placed cavity is surrounded between the adjacent dividing plate, be provided with the air bag placed cavity Air bag, the framework upper end is fixed with draw ring, and the framework lower end middle part is provided with crossbeam, and the crossbeam middle part is fixedly connected described Attachment means upper end；

The biological grid device includes biological grid support, biological rope, fixing pipe and water plant planting groove, the biological grid support For square support body, the biological grid pedestal upper end and lower end are equipped with many fixing pipes be arrangeding in parallel, upper end it is described solid Many biological ropes are provided between fixed tube and the fixing pipe of lower end, the biological grid pedestal lower end is provided with water plant planting Groove, the water plant planting groove be arranged in parallel between two fixing pipes and with fixing pipe, the biological grid upper end Middle part is provided with crossbeam, and the crossbeam middle part is fixedly connected the attachment means lower end.

2. the floatation type biological grid purifier of landscape water body as claimed in claim 1, it is characterised in that：The attachment means Including sleeve pipe, pole, fixing hole and steady pin, described sleeve pipe is fixed at the crossbeam middle part lower end of the flotation gear and sleeve pipe Open Side Down, and described sleeve pipe outer wall is provided with the fixing hole of multigroup radial direction and multigroup fixing hole is vertically arranged, and the pole is fixed The end floor beam middle part on the biological grid device, the pole is provided with multiple fixing holes being radially arranged and multigroup fixing hole It is vertically arranged, the pole is inserted into sleeve pipe, and steady pin is inserted with corresponding fixing hole.

3. the floatation type biological grid purifier of landscape water body as claimed in claim 2, it is characterised in that：The framework, every Plate and crossbeam material are light aluminum alloy, the framework, fixed using being welded and fixed between dividing plate and crossbeam.

4. the floatation type biological grid purifier of landscape water body as claimed in claim 3, it is characterised in that：The biological grid Frame is carbon steel material, and the fixing pipe is pvc pipe, and the biological grid support is provided with perforate, and the fixing pipe two ends are plugged in In the perforate of the biological grid support.

5. the floatation type biological grid purifier of landscape water body as claimed in claim 4, it is characterised in that：The water plant It is U-shaped stainless steel tank that planting groove is section, and the water plant planting groove two ends are welded on the biological grid support.

6. the floatation type biological grid purifier of landscape water body as claimed in claim 5, it is characterised in that：Also include that annular is recessed Groove, the fixing pipe is provided with multiple annular grooves, and the biological rope end is bundled in the annular groove.

7. the floatation type biological grid purifier of the landscape water body as any one of claim 2 to 6, it is characterised in that： Internal thread is provided with the fixing hole, the steady pin is externally provided with external screw thread, and the fixing hole and steady pin are screw thread cooperation.