Lake cyanobacterial bloom control process system

Abstract

The utility model provides a lake cyanobacterial bloom control process system. The system comprises an ultra-nano gas dissolving and reoxygenation mechanism, filter-feeding fishes and fish nests, wherein the filter-feeding fishes and the fish nests are arranged in a cyanobacterial bloom water area; the ultra-nano gas dissolving and reoxygenation mechanism comprises an ultra-nano gas dissolving and reoxygenation system, an oxygen generation unit connected with the ultra-nano gas dissolving and reoxygenation system, a submersible pump connected with a water inlet of the ultra-nano gas dissolving and reoxygenation system, and a water outlet pipe connected with a water outlet of the ultra-nano gas dissolving and reoxygenation system; the water outlet end of the water outlet pipe is arranged in a cyanobacterial bloom water area. According to the lake cyanobacterial bloom control process system provided by the utility model, dissolved oxygen is increased through technologies such as ultra-nano gas dissolution and reoxygenation, and biological control of filter-feeding fishes and fish nests is matched, so that water quality can be effectively improved, cyanobacteria can be inhibited, and an environment-friendly and sustainable solution is provided for lake management and water resource protection.

Description

Technical Field

[0001] The utility model relates to the technical field of river and lake water body treatment, in particular to a lake blue algae bloom control process system. Background Art

[0002] The outbreak of cyanobacteria blooms in lakes is caused by excessive input of nitrogen and phosphorus nutrients into the basin and excessive proliferation of algae, and is aggravated by the gradual degradation of the ecosystem.

[0003] At present, the control technologies of cyanobacteria blooms at home and abroad mainly include physical methods, chemical methods and biological methods. Each method has certain limitations. The specific status of various methods is as follows: ① Physical method is a method of removing algae pollution with the help of engineering and technical measures, mainly including dilution and flushing, cyanobacteria salvage, bottom mud dredging, sand filling, nutrient salt passivation, bottom aeration, covering bottom sediments and flocculation sedimentation. The effect is good, but there are disadvantages such as low effect and large engineering investment; ② Chemical method algae inhibition mainly includes herbicide method and copper preparation method. The main body of chemical algae control method is chemical algae control agent, which is easy to cause secondary pollution while inhibiting algae and is also toxic to other aquatic organisms. Therefore, even if there is no adverse reaction in the short term, it may cause long-term harm due to enrichment and residue in aquatic organisms; ③ Biological method of controlling cyanobacteria bloom mainly includes aquatic plant algae inhibition, filter-feeding fish algae inhibition and microbial algae inhibition. Biological method has a long algae removal cycle and slow effect. It cannot be used as an emergency treatment measure when cyanobacteria blooms break out on a large scale, and can only be used as a long-term auxiliary measure.

[0004] In view of this, it is necessary to design an improved lake cyanobacteria bloom control process system to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an improved lake cyanobacteria bloom control process system, aiming to quickly solve the problem of cyanobacteria bloom occurring in lakes and accelerate the process of improving water quality.

[0006] To achieve the above-mentioned purpose of the utility model, the utility model provides a lake blue algae bloom control process system, including an ultra-nano aerosol reoxygenation mechanism, filter-feeding fish and fish nests arranged in the blue algae bloom water area; the ultra-nano aerosol reoxygenation mechanism includes an ultra-nano aerosol reoxygenation system, an oxygen production unit connected to the ultra-nano aerosol reoxygenation system, a submersible pump connected to the water inlet of the ultra-nano aerosol reoxygenation system, and a water outlet pipe connected to the water outlet of the ultra-nano aerosol reoxygenation system, and the water outlet end of the water outlet pipe is arranged in the blue algae bloom water area.

[0007] As a further improvement of the present invention, the ultra-nano aerosol reoxygenation system is arranged on the shore of the cyanobacteria bloom water area.

[0008] As a further improvement of the present invention, the oxygen production unit is arranged on the shore of the blue algae bloom water area, and the oxygen production unit is connected with the ultra-nano aerosol reoxygenation system through a pipeline.

[0009] As a further improvement of the utility model, the submersible pump is fixed in the blue algae bloom water area by means of steel pipe piles.

[0010] As a further improvement of the utility model, the fish nest is arranged above the bottom mud of the blue algae bloom water area.

[0011] As a further improvement of the utility model, the fish nest is composed of a plurality of stones with different particle sizes, and the fish nest is divided into three layers from the inside to the outside.

[0012] As a further improvement of the utility model, the first layer of the fish nest is composed of blocks of stone with a particle size of 10 cm, the second layer of the fish nest is composed of blocks of stone with a particle size of 20-30 cm, and the third layer of the fish nest is composed of blocks of stone with a particle size of 40-50 cm.

[0013] As a further improvement of the utility model, the number of the fish nests is several, and the layout interval between adjacent fish nests is 50 cm.

[0014] As a further improvement of the present invention, the water outlet pipe includes at least three water outlet pipelines, and the water outlet ends of the water outlet pipes are all arranged within a range of 0.3-0.5m above the bottom mud of the blue algae bloom water area.

[0015] As a further improvement of the utility model, the water outlet pipes are all fixed in the blue algae bloom water area by steel pipe piles.

[0016] The beneficial effects of the utility model are:

[0017] 1. The lake cyanobacteria bloom control process system provided by the utility model can quickly increase the dissolved oxygen content in the water body and improve the lake water quality through the synergistic effect of ultra-nano aerosol reoxygenation system, oxygen production unit, submersible pump and water outlet pipe and other equipment, thereby effectively inhibiting the growth and reproduction of cyanobacteria.

[0018] 2. The lake cyanobacteria bloom control process system provided by the utility model provides a habitat and breeding place for filter-feeding fish by arranging filter-feeding fish and fish nests. The fish nests are composed of blocks of stones with different particle sizes, which is beneficial to improving the stability and wind and wave resistance of the fish nests, thereby ensuring the survival and breeding environment of filter-feeding fish. The amount of cyanobacteria can also be further controlled through the feeding activities of filter-feeding fish, thereby achieving the purpose of biological control of cyanobacteria blooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a plan view of a lake cyanobacteria bloom control process system provided by the utility model.

[0020] Figure 2 The utility model is a cross-sectional schematic diagram of a lake blue algae bloom control process system.

[0021] Figure 3 This is a plan view of a fish nest in a lake blue algae bloom control process system provided by the utility model.

[0022] Reference numerals

[0023] 1-Ultra-nano aerosol reoxygenation system; 2-oxygen production unit; 3-submersible pump; 4-fish nest; 5-filter-feeding fish; 6-water outlet pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0026] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] See also Figure 1-Figure 3 The utility model provides a lake blue algae bloom control process system including an ultra-nano aerosol reoxygenation mechanism, filter-feeding fish 5 and fish nests 4 arranged in the blue algae bloom water area; the ultra-nano aerosol reoxygenation mechanism includes an ultra-nano aerosol reoxygenation system 1, an oxygen production unit 2 connected to the ultra-nano aerosol reoxygenation system 1, a submersible pump 3 connected to the water inlet of the ultra-nano aerosol reoxygenation system 1, and a water outlet pipe 6 connected to the water outlet of the ultra-nano aerosol reoxygenation system 1, and the water outlet end of the water outlet pipe 6 is arranged in the blue algae bloom water area. In a specific embodiment of the utility model, the ultra-nano aerosol reoxygenation system 1 is selected as a model with an oxygenation capacity of 10kg / h, the oxygen production unit 2 is arranged next to the ultra-nano aerosol reoxygenation system 1, the oxygen production unit 2 has a power of 22kw, an oxygen production capacity of 10Nm3 / hr, and an oxygen purity of 93%.

[0028] See also Figure 1The ultra-nano aerosol reoxygenation system 1 is arranged on the shore of the cyanobacteria bloom water area. The oxygen production unit 2 is arranged on the shore of the cyanobacteria bloom water area, and the oxygen production unit 2 is connected to the ultra-nano aerosol reoxygenation system 1 through a pipeline. Such an arrangement can effectively provide sufficient dissolved oxygen to the cyanobacteria bloom water area, promote the growth of aquatic organisms and inhibit the growth of cyanobacteria, and improve water quality.

[0029] Please refer to Figure 1 and Figure 2 , the submersible pump 3 is fixed in the blue algae bloom water area by steel pipe piles. In a specific embodiment of the utility model, the submersible pump 3 is arranged in the nearshore waters to extract raw water from rivers and lakes, and the selected submersible pump 3 has a power of 11kw. With such a configuration, the oxygen-deficient water body at the bottom can be lifted up, and the dissolved oxygen content is increased after being treated by the ultra-nano aerosol reoxygenation system 1, and then returned to the original water area, forming a cycle to improve the water quality.

[0030] Please refer to Figure 1 and Figure 3 , the fish nest 4 is arranged above the bottom mud of the blue algae bloom water area. The fish nest 4 is composed of several blocks of stones with different particle sizes, and the fish nest 4 is divided into three layers from the inside to the outside. The first layer of the fish nest 4 is composed of blocks of stones with a particle size of 10cm, the second layer of the fish nest 4 is composed of blocks of stones with a particle size of 20-30cm, and the third layer of the fish nest 4 is composed of blocks of stones with a particle size of 40-50cm. The number of the fish nests 4 is several, and the layout spacing of adjacent fish nests 4 is 50cm. Such arrangement can provide a good habitat and breeding environment for filter-feeding fish 5, promote their growth and reproduction, increase the feeding pressure on blue algae, and further control blue algae blooms. At the same time, the gaps between the blocks help to increase the dissolved oxygen in the water body, promote the biodegradation of the bottom mud, and reduce the release of nutrients in the bottom mud, thereby improving the water quality. In addition, the multi-level structure of the fish nest 4 helps to form different water flow velocity areas, provide a suitable living environment for aquatic organisms with different habits, and enhance the diversity and stability of the ecosystem.

[0031] Please refer to Figure 1 The outlet pipe 6 includes at least three outlet pipes 6, and the outlet ends of the outlet pipes 6 are all arranged within a range of 0.3-0.5m above the bottom mud of the blue algae bloom water area. The outlet pipes 6 are all fixed in the blue algae bloom water area by steel pipe piles. Such an arrangement can ensure that the oxygen-rich water treated by the ultra-nano aerosol reoxygenation system 1 is evenly distributed to various areas of the blue algae bloom water area, improve the dissolved oxygen efficiency, and at the same time keep it within a certain height range above the bottom mud to avoid direct impact on the bottom mud, reduce the disturbance of the bottom mud, and further improve the water quality.

[0032] The working principle of the present invention is further described below in conjunction with specific embodiments:

[0033] On the shore of a lake where blue algae frequently occur, an ultra-nano aerosol reoxygenation system 1 with an oxygen supply of 10kg / h was installed. The system is equipped with three outlet pipes 6, which are distributed 0.3-0.5m above the bottom mud of the lake blue algae bloom area and fixed to the lake bed with steel pipes. A submersible pump 3 with a power of 11kw is arranged in the nearshore waters to extract raw water from rivers and lakes and is fixed by steel pipes. Next to the ultra-nano aerosol reoxygenation system 1, an oxygen production unit 2 with a power of 22kw is set up. The oxygen production capacity of this unit is 10Nm3 / hr and the oxygen purity is 93%. Fish nests 4 with a diameter of 80cm are evenly arranged above the bottom mud of the blue algae bloom area. The fish nests 4 are composed of blocks with particle sizes of 40-50cm, 20-30cm and 10cm, and the distance between adjacent fish nests 4 is 50cm. The filter-feeding fish 5 selected were silver carp and bighead carp, with an individual size of 250 kg / tail and a feeding density of 50 g / m 3 (1 cubic meter of water).

[0034] The raw water from rivers and lakes extracted by the submersible pump 3 is transported to the ultra-nano aerosol reoxygenation system 1, and the oxygen produced by the oxygen production unit 2 is transmitted to the ultra-nano aerosol reoxygenation system 1 through a pipeline. After being treated by the ultra-nano aerosol reoxygenation system 1, the water rich in dissolved oxygen is evenly discharged from the ultra-nano aerosol reoxygenation system 1 through the three-way outlet pipe 6 into the cyanobacteria bloom water area. This distribution method effectively increases the dissolved oxygen content of the water body and inhibits the growth of cyanobacteria. The arranged fish nests 4 provide a habitat for filter-feeding fish 5, which further control the development of cyanobacteria blooms by feeding on microorganisms such as cyanobacteria. In addition, the activities of fish also help to improve the water environment and enhance the stability of the ecosystem. The entire system achieves effective control of lake cyanobacteria blooms and improves water quality through a combination of physical, chemical and biological methods.

[0035] In summary, the utility model provides a lake cyanobacteria bloom control process system, which combines ultra-nano aerosol reoxygenation system 1, oxygen production unit 2, submersible pump 3 and outlet pipe 6 and other equipment to quickly increase the dissolved oxygen in the water body, improve water quality, and inhibit the growth of cyanobacteria. By setting filter-feeding fish 5 and stable fish nests 4, the number of cyanobacteria is further controlled by biological methods to achieve ecological balance. It has significant environmental benefits and sustainability, and provides an effective solution for lake management and water resource protection.

[0036] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A lake cyanobacteria bloom control process system, characterized by: The invention comprises an ultra-nano aerosol reoxygenation mechanism, filter-feeding fish and fish nests arranged in a water area of ​​cyanobacteria bloom; the ultra-nano aerosol reoxygenation mechanism comprises an ultra-nano aerosol reoxygenation system, an oxygen production unit connected to the ultra-nano aerosol reoxygenation system, a submersible pump connected to a water inlet of the ultra-nano aerosol reoxygenation system, and a water outlet pipe connected to a water outlet of the ultra-nano aerosol reoxygenation system, wherein the water outlet end of the water outlet pipe is arranged in the water area of ​​cyanobacteria bloom.

2. The lake cyanobacteria bloom control process system according to claim 1, characterized in that: The ultra-nano aerosol reoxygenation system is arranged on the shore of the blue algae bloom water area.

3. The lake cyanobacteria bloom control process system according to claim 2, characterized in that: The oxygen production unit is arranged on the shore of the blue algae bloom water area, and the oxygen production unit is connected with the ultra-nano aerosol reoxygenation system through a pipeline.

4. The lake cyanobacteria bloom control process system according to claim 1, characterized in that: The submersible pump is fixed in the blue algae bloom water area through steel pipe piles.

5. The lake cyanobacteria bloom control process system according to claim 1, characterized in that: The fish nest is arranged above the bottom mud of the blue algae bloom water area.

6. The lake blue algae bloom control process system according to claim 5, characterized in that: The fish nest is composed of a plurality of stones with different particle sizes, and the fish nest is divided into three layers from the inside to the outside.

7. The lake cyanobacteria bloom control process system according to claim 6, characterized in that: The first layer of the fish nest is composed of blocks of stone with a particle size of 10 cm, the second layer of the fish nest is composed of blocks of stone with a particle size of 20-30 cm, and the third layer of the fish nest is composed of blocks of stone with a particle size of 40-50 cm.

8. The lake cyanobacteria bloom control process system according to claim 7, characterized in that: The number of the fish nests is several, and the layout interval between adjacent fish nests is 50 cm.

9. The lake cyanobacteria bloom control process system according to claim 1, characterized in that: The water outlet pipe comprises at least three water outlet pipelines, and the water outlet ends of the water outlet pipes are all arranged within a range of 0.3-0.5m above the bottom mud in the blue algae bloom water area of ​​the lake.

10. The lake cyanobacteria bloom control process system according to claim 1, characterized in that: The water outlet pipes are all fixed on the lake bed through steel pipe piles.

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