Biological algae control comprehensive water purification device suspended in water

Abstract

The invention discloses a biological algae-control comprehensive water purification device suspended in water. The device comprises a plant purification floating layer, a filter material water purification filter layer and a biological algae-control water purification layer, the plant purification floating layer comprises a floating body and emergent aquatic plants arranged on the floating body; the filter material water purification filter layer comprises a filter material box and a water purification filter material; the biological algae control water purification layer comprises a zooplankton water purification cultivation box and zooplankton cultivated in the zooplankton water purification cultivation box; an air inlet, a water inlet and a water outlet are connected to the zooplankton water purification cultivation box, an aeration pipe is arranged in the zooplankton water purification cultivation box, and the aeration pipe is connected with the air inlet; and the upper end pipe orifice of the water inlet pipe is positioned in the middle-upper algae water area. The biological algae control comprehensive water purification device suspended in water can complete the tasks of reducing the density of algae in a water body, reducing the content of nitrogen and phosphorus in the water, improving the water landscape and the like.

Description

Technical Field

[0001] The invention relates to the technical field of ecological water treatment and purification, in particular to a biological algae-controlling integrated water purification device suspended in water. Background Art

[0002] In view of the limitations of traditional treatment methods such as salvage and the ecological destructiveness of chemical treatment methods, the emerging biotechnology treatment methods have attracted much attention in the industry for their superiority and are eager to become the best choice for conquering blue algae pollution. Therefore, the technology or equipment for biological algae control and water purification is in urgent need. Summary of the invention

[0004] Technical problem: For the tributaries of large river basins, algae are mainly input from exogenous sources and concentrated in the middle and upper layers of the water body, blocking sunlight from projecting into the water, consuming a large amount of dissolved oxygen in the water, and causing the death of a large number of aquatic organisms. The decay of dead algae and carcasses of aquatic animals causes eutrophication of the water, which seriously threatens the aquatic ecosystem. The present invention abandons the limitations of traditional management methods such as salvage and the ecological destructiveness of chemical management methods. Through biological regulation technology, indigenous algae control organisms are cultivated in a diversified manner to eat and decompose algae to achieve a rapid removal effect. On the basis of not destroying the ecological water environment of the river channel, the present invention provides a biological algae control comprehensive water purification technology that is simple to operate, has high removal efficiency, is convenient to manage and maintain, and requires less investment. It can not only effectively reduce the density of algae in the water body, but also reduce the nitrogen and phosphorus content, improve the water landscape effect, and lay a solid foundation for the ecological management of the water environment, overcoming the above-mentioned technical problems existing in the existing algae control and algae treatment.

[0005] Technical solution:

[0006] A biological algae control integrated water purification device suspended in water, comprising a plant purification floating layer, a filter material water purification filter layer and a biological algae control water purification layer;

[0007] The plant purification upper floating layer includes a floating body and emergent plants arranged on the floating body;

[0008] The filter material water purification filter layer is arranged below the plant purification upper floating layer, and the filter material water purification filter layer comprises a filter material box and water purification filter material;

[0009] The biological algae control water purification layer is arranged below the material water purification filtration layer, and the biological algae control water purification layer includes a zooplankton water purification cultivation box and zooplankton cultured in the zooplankton water purification cultivation box; an air inlet, a water inlet and a water outlet are connected to the zooplankton water purification cultivation box, an aeration pipe is arranged in the zooplankton water purification cultivation box, and the aeration pipe is connected to the air inlet; the water inlet is connected to a water inlet pipe, and the upper end of the water inlet pipe is located in the middle and upper algae water area.

[0010] The biological algae control water purification layer also includes a light-transmitting PC board, which is used to provide light for the zooplankton in the zooplankton water purification cultivation box.

[0011] A water distribution pipe is arranged in the zooplankton water purification cultivation box, and the water distribution pipe is connected to the water inlet.

[0012] The biological algae control water purification layer also includes a power cabinet, in which a motor is arranged for aeration and water absorption from a water inlet.

[0013] The water outlet of the zooplankton water purification cultivation box is a flat and long water outlet.

[0014] The filter material box also includes a box door.

[0015] A planting trough is arranged on the floating body, and emergent plants are planted in the planting trough.

[0016] An auxiliary floating body is also arranged on the outer side of the floating body.

[0017] The plant purification floating layer, the filter material water purification filter layer and the biological algae control water purification layer are connected through a connecting column.

[0018] The connecting column is connected to the bottom of the pre-buried fixed pile through a floating limit sleeve pile.

[0019] Advantages of the invention:

[0020] The present invention discloses a biological algae control integrated water purification device suspended in water, which can reduce the density of algae in water, reduce the nitrogen and phosphorus content in water, and improve the water landscape.

[0021] Plant purification of the floating layer is done by sewage-tolerant aquatic plants that absorb pollutants as their own nutrients, and then artificially harvest them to remove a large amount of pollutants from the water environment; the secretions of plant roots can provide nutrients for root microorganisms and promote their growth. The number of microorganisms in the root micro-ecosystem is significantly higher than that in other areas, and the root microorganisms can degrade and metabolize organic pollutants; the inhibitory effect of aquatic plants on algae mainly comes from two aspects. First, the growth of aquatic plants also requires nutrients and environmental factors such as light and heat conditions, so they will form a competitive effect with algae. Higher aquatic plants have developed root systems and are in an advantageous position in the competition with algae. They have a strong ability to absorb nutrients such as nitrogen and phosphorus. Due to the lack of limiting nutrients, the growth of algae is inhibited, thus avoiding the occurrence of water blooms. At the same time, the presence of aquatic plants will also hinder light from entering the water body, further inhibiting the growth and reproduction of algae. On the other hand, plants will secrete allelopathic substances that inhibit the growth of algae. These substances are mainly divided into five categories: aliphatic, aromatic, nitrogen-containing heterocyclic compounds, terpenoids and nitrogen-containing compounds. Studies have shown that allelopathic substances can inhibit algae growth by affecting algae cell membrane structure, respiration, photosynthesis, enzyme activity and gene expression.

[0022] The filter media water purification filtration layer is mainly completed through the physical, chemical and biological effects between the filter media and microorganisms. The filter media (such as volcanic rock, ceramsite) removes suspended matter and some pollutants in the sewage through physical barriers and adsorption, and the microorganisms convert organic matter into inorganic matter through decomposition, thereby achieving the purpose of purifying water quality.

[0023] The biological algae control water purification layer adopts a culture device for cultivating zooplankton in a closed zooplankton box. Compared with the conventional direct release in the water body, it has the following obvious advantages: First, with direct release, most zooplankton will be eaten by fish in a short time and reduced in large quantities. The culture device can effectively protect the survival of zooplankton. Second, the direct release of zooplankton is easily affected by the water flow, drifting with the current, and dispersed to other waters, which cannot effectively control the algae in specific waters. The culture device uses its fixed characteristics to quickly pump the surface algae of specific waters into the device, which can effectively control the algae in specific waters and quickly reduce the algae density. Third, since the domesticated zooplankton has high requirements for the living environment, the waters where algae burst generally have low dissolved oxygen and it is difficult for zooplankton to survive. The culture device ensures that the dissolved oxygen in the cultivation box is always at a high content through aeration, thereby increasing the algae control activity and quantity of zooplankton. The biological algae control water purification layer can expand and maintain sufficient density of large herbivorous zooplankton, effectively control the excessive growth of algae, and reduce the algae density in the water body.

[0024] The present invention discloses a biological algae control integrated water purification device suspended in water, which can be applied to tributary rivers in large river basins, where algae are mainly input from exogenous sources. It is not limited by the water depth of the river channel, has a wide range of applications, and purifies water quality by reducing the purification functions of algae, emergent plants and biological filter materials through innovative biological control units, and comprehensively and quickly repairs the water ecosystem; it can also use the reasonable combination of emergent plants to create a beautiful aquatic plant ecological landscape; compared with the limitations of traditional salvage and other treatment methods, and the ecological destructiveness of chemical treatment methods, this technology has the advantages of sustainable water purification capacity, simple technical implementation, low construction cost, convenient construction, simple maintenance and management, etc., embodying the concepts of ecology, low carbon, and environmental protection, and has good ecological affinity, comprehensive water purification functionality, economy, practicality and wide applicability, and is particularly suitable for promotion and use in rivers with high landscape requirements, large input of exogenous algae, difficult water purification, and relatively large water depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the comprehensive water purification device for controlling biological algae suspended in water of the present invention;

[0026] Figure 2 yes Figure 1 Another view after rotating the angle;

[0027] Figure 3 yes Figure 1 A top view of

[0028] Figure 4 yes Figure 1 a first side view of;

[0029] Figure 5 yes Figure 1 a second side view of the

[0030] Figure 6 yes Figure 1 A third side view of the

[0031] Figure 7 yes Figure 1 A fourth side view of the

[0032] In the figure: 1. floating air inlet; 2. air inlet pipe; 3. cluster pipe; 4. flat and long water inlet; 5. power cabinet; 6. cable conduit; 7. air inlet pipe; 8. water inlet pipe; 9. floating body; 10. planting trough; 11. auxiliary floating body; 12. buckle; 13. connecting column; 14. box net; 15. box door; 16. filter box; 17. light-transmitting PC board; 18. zooplankton water purification cultivation box; 19. sewage-resistant plants; 20. built-in water distribution pipe in the cultivation box; 21. built-in aeration pipe in the cultivation box; 22. outlet pipe; 23. flat and long water outlet; 24. water purification filter material; 25. floating limit sleeve pile 26. embedded fixed pile bottom. DETAILED DESCRIPTION

[0033] The present invention provides a biological algae control integrated water purification device suspended in water, such as Figure 1-Figure 7 As shown, it includes a plant purification floating layer, a filter material water purification layer and a biological algae control water purification layer.

[0034] The plant purification upper floating layer is mainly carried by a float 9 floating on the water surface, which provides 90% of the buoyancy support for the entire device. The selected and domesticated sewage-tolerant plants 19 (plants with strong ability to absorb organic pollutants in water, such as aquatic canna, lily of the valley, yellow calamus, etc.) are implanted into the prefabricated planting trough 10 on the float 9. The plant roots naturally extend and suspend under the float 9, adsorbing and absorbing organic pollutants such as nitrogen and phosphorus in the water, reducing COD, and artificially creating a good growth environment for microorganisms. The material of the float 9 can be a polyester fiber floating board or a foam board, which is embedded in the prefabricated frame structure and spliced. After the planting trough 10 is inserted, the sewage-tolerant plants 19 are placed in the planting trough 10 with the filling matrix. After a growth period of 3-5 months, the implanted sewage-resistant plants 19 gradually grow from 10-20 cm buds to 60-200 cm tall aquatic plants with blooming flowers and green leaves, which not only absorb organic pollutants such as nitrogen and phosphorus in the water, but also enhance the landscape effect of the water surface. The flat and long water inlet 4 is as shown in the figure, and is installed to the right side of the float 9 through the buckle 12. The right end of the flat and long water inlet 4 is connected to the outlet pipe and incorporated into the cluster pipe 3. The auxiliary float 11 is as shown in the figure, and is installed to the left side of the float 9 through the buckle 12 to provide additional buoyancy for the float. Buckles 12 are reserved on the front and back of the float 9. When the buoyancy of the float 9 is insufficient, an additional auxiliary float 11 can be installed to provide additional buoyancy for the float. The floating air inlet 1 itself has buoyancy and can be suspended on the water surface. Its tail end is connected to the air inlet pipe 2 and incorporated into the cluster pipe 3.

[0035] The plant purification floating layer and the filter material water purification filter layer are connected and fixed by a connecting column 13, and the length of the connecting column 13 is preferably ≥30cm.

[0036] The filter material water purification filter layer is mainly carried by the filter material box 16. The filter material box 16 is a regular rectangular parallelepiped, and its height should be ≥40cm. The specific size can be determined according to actual needs. The material can be made of light stainless steel to maximize the weight reduction while ensuring strength. Its top surface, bottom surface, left side elevation, right side elevation, and rear elevation are assembled by the box net 14, and the gap spacing of the box net 14 should be ≤1cm. The box door 15 is installed on the front of the filter material box 16 through a hinge, which has an opening function to facilitate the cleaning and replacement of the water purification filter material 24. The particle size of the water purification filter material 24 should be between 1cm and 5cm. If the particle size is too small, it is easy to scatter outside the box net 14. If the particle size is too large, the porosity of the water purification filter material 24 is large, which is easy to reduce the residence time of the water body and reduce the purification effect. For example, carbon fiber biological filter material and fiber filter material. The water purification filter material 24 itself can absorb organic pollutants such as nitrogen and phosphorus in the water, and can also provide a carrier for microbial attachment and form a biofilm on the surface, thereby playing the role of interception, adsorption and purification.

[0037] The biological algae control water purification layer is mainly carried by the zooplankton water purification cultivation box 18. The zooplankton water purification cultivation box 18 is a regular rectangular parallelepiped, and its height should be ≥40cm. The specific size can be determined according to actual needs. The material can be made of light stainless steel, which can maximize the weight reduction while ensuring strength. The extended area of ​​its front facade is a light-transmitting PC board 17 with an arc, which provides the required light for the zooplankton in the zooplankton water purification cultivation box 18. As shown in the figure, a power cabinet 5 is set on the right facade, and the upper end of the power cabinet 5 is a water inlet pipe 8, and the lower end is an air inlet pipe 7. The water distribution pipe 20 is set at the upper end of the inner facade, and the aeration pipe 21 is set at the lower end. The water is evenly discharged to the zooplankton water purification cultivation box through the water distribution pipe for the zooplankton to filter and feed on algae. After the filtering is completed, it is discharged to the river through the outlet, and the upper and middle layers of the river are provided with algae water and air in the zooplankton water purification cultivation box 18. The power cabinet 5 has a built-in motor to provide power, and the power can be determined according to actual needs. The external cable conduit 6 below the power cabinet 5 is used to collect the cables of the device in the conduit. A flat and long water outlet 23 is set on the left side of the zooplankton water purification cultivation box 18, which is connected to the inside of the zooplankton water purification cultivation box 18 through the water outlet pipe 22 to discharge the water body after algae control and purification in the zooplankton water purification cultivation box 18.

[0038] The biological algae control integrated water purification device of the present invention also includes an up-and-down floating structure, which can be appropriately pre-buried with a fixed pile bottom 26 according to the actual size of the device, and the floating limit sleeve pile 25 is installed in conjunction with the pre-buried fixed pile bottom 26. At the four corner design positions of the device where the plant purification upper floating layer, the filter material water purification filter layer, and the biological algae control water purification layer are integrally assembled, appropriate floating limit sleeve piles 25 are selected according to the design requirements. The overall implementation is completed and debugged.

[0039] Working process:

[0040] The present invention discloses a biological algae control integrated water purification device suspended in water, which is installed according to the needs and placed in a river.

[0041] Plant purification of the floating layer is done by sewage-tolerant aquatic plants that absorb pollutants as their own nutrients, and then artificially harvest them to remove a large amount of pollutants from the water environment; the secretions of plant roots can provide nutrients for root microorganisms and promote their growth. The number of microorganisms in the root micro-ecosystem is significantly higher than that in other areas, and the root microorganisms can degrade and metabolize organic pollutants; the inhibitory effect of aquatic plants on algae mainly comes from two aspects. First, the growth of aquatic plants also requires nutrients and environmental factors such as light and heat conditions, so they will form a competitive effect with algae. Higher aquatic plants have developed root systems and are in an advantageous position in the competition with algae. They have a strong ability to absorb nutrients such as nitrogen and phosphorus. Due to the lack of limiting nutrients, the growth of algae is inhibited, thus avoiding the occurrence of water blooms. At the same time, the presence of aquatic plants will also hinder light from entering the water body, further inhibiting the growth and reproduction of algae. On the other hand, plants will secrete allelopathic substances that inhibit the growth of algae. These substances are mainly divided into five categories: aliphatic, aromatic, nitrogen-containing heterocyclic compounds, terpenoids and nitrogen-containing compounds. Studies have shown that allelopathic substances can inhibit algae growth by affecting algae cell membrane structure, respiration, photosynthesis, enzyme activity and gene expression.

[0042] The filter media water purification filtration layer is mainly completed through the physical, chemical and biological effects between the filter media and microorganisms. The filter media (such as volcanic rock, ceramsite) removes suspended matter and some pollutants in the sewage through physical barriers and adsorption, and the microorganisms convert organic matter into inorganic matter through decomposition, thereby achieving the purpose of purifying water quality.

[0043] The biological algae control water purification layer is powered by the power cabinet, which extracts surface algae water from the flat long water inlet, and discharges it into the zooplankton water purification cultivation box through the water inlet pipe and the water pipe in the cultivation box. The newly entered surface algae water is eaten by the large herbivorous zooplankton in the box, and after reducing the algae density, it is discharged into the river through the water outlet pipe and the flat long water outlet to achieve the algae control effect. At the same time, the power cabinet will also provide power to extract air from the floating air inlet, through the air inlet pipe, and release it to the zooplankton water purification cultivation box through the aeration pipe in the cultivation box to provide oxygen for large herbivorous zooplankton, and expand the cultivation of large herbivorous zooplankton to reach and maintain sufficient density.

[0044] The floating structure is fixed by the pre-buried fixed pile bottom to prevent displacement caused by water flow. The floating limit sleeve pile plays a connecting role, connecting the device completely to the pre-buried fixed pile bottom and providing space for up and down displacement, so that the device can float effectively with the change of water level.

[0045] The present invention discloses a biological algae control integrated water purification device suspended in water, which can be applied to tributary rivers in large river basins, where algae are mainly input from exogenous sources. It is not limited by the water depth of the river channel, has a wide range of applications, and purifies water quality by reducing the purification functions of algae, emergent plants and biological filter materials through innovative biological control units, and comprehensively and quickly repairs the water ecosystem; it can also use the reasonable combination of emergent plants to create a beautiful aquatic plant ecological landscape; compared with the limitations of traditional salvage and other treatment methods, and the ecological destructiveness of chemical treatment methods, this technology has the advantages of sustainable water purification capacity, simple technical implementation, low construction cost, convenient construction, simple maintenance and management, etc., embodying the concepts of ecology, low carbon, and environmental protection, and has good ecological affinity, comprehensive water purification functionality, economy, practicality and wide applicability, and is particularly suitable for promotion and use in rivers with high landscape requirements, large input of exogenous algae, difficult water purification, and relatively large water depth.

[0046] Example:

[0047] The Hudong Canal is located in Suzhou Hi-Tech Zone. As a branch of the lower reaches of the Taihu Lake Basin, it is affected by wind and blue algae blooms in Taihu Lake all year round. A large amount of algae floats into the Hudong Canal with the water flow. Since the blue algae in the Hudong Canal are imported from outside, they mainly float on the water surface, blocking the sunlight from projecting into the water, consuming a large amount of dissolved oxygen in the water, causing the death of aquatic organisms. The dead algae and the decay of aquatic animal carcasses make the water eutrophic, seriously threatening the aquatic ecosystem, and also causing a great impact on the visual perception.

[0048] In the above context, traditional salvage and chemical treatment methods have been tried. Among them, traditional salvage treatment methods have great limitations, require a lot of manpower and time, and have little effect. Although chemical treatment methods are effective, they are very destructive to the ecology of the Hudong Canal.

[0049] Therefore, it is proposed to use biological control technology as the main means to cultivate indigenous algae-control organisms in a diversified manner to eat and decompose algae, so as to achieve the effect of quickly removing the imported algae from Taihu Lake. In addition, aquatic plants and water purification filter materials (attached microorganisms) are used as ecological purification measures to reduce the nitrogen and phosphorus content in the Hudong Canal, avoid the outbreak of local algae caused by imported algae, and comprehensively control and prevent the impact of exogenous imported algae in the Hudong Canal.

Claims

1. A comprehensive water purification device for biological algae control suspended in water, characterized in that: It includes a plant purification floating layer, a filter material water purification layer and a biological algae control water purification layer; The plant purification upper floating layer includes a floating body and emergent plants arranged on the floating body; The filter material water purification filter layer is arranged below the plant purification upper floating layer, and the filter material water purification filter layer comprises a filter material box and water purification filter material; The biological algae control water purification layer is arranged below the material water purification filtration layer, and the biological algae control water purification layer includes a zooplankton water purification cultivation box and zooplankton cultured in the zooplankton water purification cultivation box; an air inlet, a water inlet and a water outlet are connected to the zooplankton water purification cultivation box, an aeration pipe is arranged in the zooplankton water purification cultivation box, and the aeration pipe is connected to the air inlet; the water inlet is connected to a water inlet pipe, and the upper end of the water inlet pipe is located in the middle and upper algae water area.

2. The biological algae control integrated water purification device suspended in water according to claim 1, characterized in that: The biological algae control water purification layer also includes a light-transmitting PC board, which is used to provide light for the zooplankton in the zooplankton water purification cultivation box.

3. The biological algae control integrated water purification device suspended in water according to claim 1, characterized in that: A water distribution pipe is arranged in the zooplankton water purification cultivation box, and the water distribution pipe is connected to the water inlet.

4. The biological algae control integrated water purification device suspended in water according to claim 1, characterized in that: The biological algae control water purification layer also includes a power cabinet, in which a motor is arranged for aeration and water absorption from a water inlet.

5. The biological algae control integrated water purification device suspended in water according to claim 1, characterized in that: The water outlet of the zooplankton water purification cultivation box is a flat and long water outlet.

6. The biological algae control integrated water purification device suspended in water according to claim 1, characterized in that: The filter material box also includes a box door.

7. The integrated water purification device for controlling biological algae suspended in water according to claim 1, characterized in that: A planting trough is arranged on the floating body, and emergent plants are planted in the planting trough.

8. The integrated water purification device for biological algae control suspended in water according to claim 1, characterized in that: An auxiliary floating body is also arranged on the outer side of the floating body.

9. The integrated water purification device for controlling biological algae suspended in water according to any one of claims 1 to 8, characterized in that: The plant purification floating layer, the filter material water purification filter layer and the biological algae control water purification layer are connected through a connecting column.

10. The integrated water purification device for controlling algae suspended in water according to claim 9, characterized in that: The connecting column is connected to the bottom of the pre-buried fixed pile through a floating limit sleeve pile.

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