CN205313208U - Catalytic oxidation formula fountain aeration systems - Google Patents

Abstract

The utility model discloses a contact oxidation type fountain aeration system, which comprises a fountain aeration device, a contact oxidation type ecological floating island, a microbial bed and a floating device. The fountain aeration device includes a buoy with a hollow structure and a fountain aeration placed in the buoy There is a contact oxidation type ecological floating island around the buoy, and the buoy and the contact oxidation type ecological floating island are connected by a soft connection line. The island and the collar are connected by flexible wires. The ecological floating island, microbial bed, and fountain aeration device are improved and organically integrated to make it a whole. The surrounding floating devices can keep the system as a whole floating freely with the fluctuation of the water level, and the horizontal displacement is very small. Small, by setting the grid net at the bottom of the buoy, the plastic garbage, leaves, paper pieces, etc. floating in the water body can be isolated to prevent these floating objects from being drawn into the buoy and causing mechanical failure.

Description

Contact Oxidation Fountain Aeration System

technical field

The utility model relates to a contact oxidation fountain aeration system, which is mainly suitable for improving and promoting the water quality of various river courses, landscape water bodies and aquaculture water bodies.

Background technique

With decades of rapid economic and social development in our country, surface water and the groundwater connected to it have generally been polluted to varying degrees. Although all walks of life have attached great importance to environmental protection in recent years, the restoration and improvement of the environment is an important Slow systems engineering. According to the "2014 China Environmental Bulletin" issued by the Ministry of Environmental Protection, among the 968 state-controlled surface water monitoring sections of 423 major rivers and 62 key lakes (reservoirs) across the country, the levels of Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, inferior Ⅴ Sections with similar water quality accounted for 3.4%, 30.4%, 29.3%, 20.9%, 6.8%, and 9.2% respectively. The main pollution indicators were chemical oxygen demand, total phosphorus, and five-day biochemical oxygen demand. Among the 4,896 groundwater monitoring points nationwide , the proportion of monitoring points with good water quality is 10.8%, that of good water quality is 25.9%, that of better water quality is 1.8%, that of poor water quality is 45.4%, and that of extremely poor The ratio is 16.1%. The overall situation is still not very optimistic.

The pollution problems of rivers and lakes in my country are mainly manifested as black odor caused by organic pollution and eutrophication caused by excessive nitrogen and phosphorus. Therefore, the more commonly used and effective treatment process in river and lake water ecological restoration projects is oxygenation and aeration. However, the oxygenation efficiency of aeration in actual projects is only 5% to 15%, because most of the oxygen is released to the surface of the water before it can be used by aerobic microorganisms and aquatic plants, so that the precious energy cannot be fully utilized and the water quality will be reduced. It is difficult to increase the speed of improvement.

Contents of the invention

In view of the above problems, the utility model provides a contact oxidation fountain aeration system, which improves and organically integrates the ecological floating island, microbial bed, and fountain aeration device to make it a whole, and the surrounding floating devices can Keep the system as a whole floating freely with the fluctuation of the water level, and the horizontal displacement that occurs is very small. When the system is in operation, the anoxic water at the bottom of the river and lake is lifted into the air to complete the reoxygenation process and then falls into the river and lake. The oxygen carried is fully utilized by the roots of the ecological floating island plants and the aerobic microorganisms on the microbial bed, which enhances the growth of microorganisms. The speed of degrading organic matter and oxidizing ammonia nitrogen also improves the speed of nitrogen and phosphorus absorption by plant roots; the water drop effect of the fountain and the lush plants on the floating island form a dynamic and static waterscape, which greatly improves the sensory effect of ecological engineering.

In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is: a contact oxidation fountain aeration system, including a fountain aeration device, a contact oxidation ecological floating island, a microbial bed and a floating device, and the fountain aeration device includes The buoy with a hollow structure and the fountain aerator placed in the buoy, the sum of the gravity of the buoy and the fountain aerator is not greater than the buoyancy on the buoy, and there are contact oxidation ecological floating islands around the buoy, the buoy and the contact oxidation The ecological floating islands are connected by several flexible connecting lines. The floating device includes a fixed pile and a collar that is set on the fixed pile and can move up/down on the fixed pile. The contact with the oxidized ecological floating island and the said collar connected by cords.

As a preference of the above solution, the contact oxidation type ecological floating island includes an ecological floating island and a microbial bed arranged at the lower end of the ecological floating island, and the microbial bed is mounted on the lower end of the ecological floating island Several polymer biofilm carrier components, the biofilm carrier component includes connecting lines and biofilm carriers placed on the connecting lines.

As a preference of the above solution, the several polymer biofilm carrier components are evenly mounted on the lower end of the ecological floating island in rows and columns at equal distances.

As a preference of the above solution, the ends of the connecting wires are bound with counterweights.

As a preference of the above solution, the ecological floating island is spliced by several PE floating basins, and the outside of the ecological floating island is equipped with a floating island frame welded by several PE pipes or PPR pipes.

As a preference of the above solution, the bottom of the ecological floating island is covered with a nylon net.

As a preference of the above solution, the pore diameter of the nylon mesh is 2-5 mm.

As a preference of the above solution, the buoy is provided with a grid to prevent floating objects in the water from entering the buoy.

As a preference of the above solution, the fixed pile is provided with a limiting device for preventing the collar from slipping out of the fixed pile.

The beneficial effect of the utility model is: the ecological floating island, the microbial bed, and the fountain aeration device are improved and organically integrated to make it a whole, and the floating devices around can keep the whole system free from fluctuations with the water level. Floating, but the horizontal displacement is very small. By setting the grid net at the bottom of the buoy, the plastic garbage, leaves, paper pieces, etc. floating in the water body can be isolated to prevent these floating objects from being involved in the buoy and causing mechanical failure. The design of the floating island frame and nylon mesh can greatly improve the wind and wave resistance of the ecological floating island, prolong the service life and reduce maintenance costs.

Description of drawings

Fig. 1 is the structural representation of this contact oxidation fountain aeration system;

Fig. 2 is a schematic diagram of the A-A sectional structure of the contact oxidation fountain aeration system shown in Fig. 1 .

In the figure: 1. fountain aerator, 2. buoy, 3. outer frame of floating island, 4. ecological floating island, 5. fixed pile, 6. collar, 7. soft rope, 8. biofilm carrier, 9. Grid netting, 10, gravel.

detailed description

Below in conjunction with embodiment, the specific implementation mode of the present utility model is further described.

As shown in Figure 1 and Figure 2, the contact oxidation fountain aeration system includes a fountain aeration device, a contact oxidation type ecological floating island, a microbial bed and a floating device, and the fountain aeration device includes a buoy with a hollow structure and placed The fountain aerator in the buoy, the buoy is a hollow ring structure, the sum of the gravity of the buoy and the fountain aerator is not greater than the buoyancy on the buoy, which can maintain the buoy and the fountain aerator as a whole except for the fountain aerator The outside of the nozzle is submerged in the water, and the buoy is provided with a grid net to prevent floating objects in the water from entering the buoy. etc., to prevent these floating objects from entering the buoy and being involved in the submersible pump to cause mechanical failure. There are contact oxidation ecological floating islands around the buoy, and the buoys and contact oxidation ecological floating islands are connected by several soft connecting lines. , the floating device includes a fixed pile and a collar that is set on the fixed pile and can move up/down on the fixed pile. When the water level rises or falls, the collar slides up or down on the fixed pile, contacting the oxidized ecological floating island and The collars are connected by flexible wires, which can effectively prevent large displacements of the contact oxidation ecological floating island. The upper end of the fixed pile is welded with a limit device for preventing the collar from sliding out of the fixed pile. The floating island includes an ecological floating island and a microbial bed located at the lower end of the ecological floating island. The microbial bed is a plurality of polymer biofilm carrier components mounted on the lower end of the ecological floating island. The biofilm carrier The components include a connection line and several biofilm carriers evenly distributed on the connection line. The end of the line is tied with a counterweight. The counterweight is preferably a stone, which can keep the connecting line stretched vertically in the water. The best effect is when the distance between the stone and the river bed is 20-30cm.

Wherein, the fixed pile is a galvanized steel pipe.

Wherein, the flexible connecting wire and the flexible wire are soft ropes.

The ecological floating island is spliced by several PE floating basins. The outer frame of the ecological floating island is welded by several PE pipes or PPR pipes, which can greatly improve the wind and wave resistance of the ecological floating island and prolong the life of the ecological floating island. Service life, reduce maintenance cost. The bottom of the ecological floating island is paved with nylon mesh, which can further improve the wind and wave resistance of the ecological floating island, prolong its service life, and reduce maintenance costs. The pore size of the nylon mesh is 2-5mm, and the nylon mesh can be Multiple layers, the specific number of layers depends on specific needs.

More specifically, the ecological floating island includes a square ring ecological floating island in the center and four square ecological floating islands. A buoy is set at the center of the square ring ecological floating island, and four soft ropes are arranged on the buoys. The soft ropes are connected to the square ring. On the four corners of the inner ring of the ecological floating island, the four corners of the outer ring of the square ring ecological floating island are respectively connected to a square ecological floating island. Four fixed piles are located on the periphery of the ecological floating island and are distributed in a square shape. The rings are respectively connected to a square ecological floating island through soft ropes, so as to ensure that the system can automatically adjust along the vertical direction with the change of water level, and will not drift arbitrarily in the horizontal direction due to water flow and wind and waves.

For those skilled in the art, it is still possible to modify the technical solutions described in the foregoing embodiments, or to perform equivalent replacements for some of the technical features, and any modifications made within the spirit and principles of the present utility model , equivalent replacement, improvement, etc., should all be included in the protection scope of the present utility model.

Claims (9)

1. The contact oxidation fountain aeration system is characterized in that: it comprises a fountain aeration device, a contact oxidation type ecological floating island, a microbial bed and a floating device, and the fountain aeration device includes a buoy with a hollow structure and a buoy placed in the buoy. Fountain aerator, the sum of the gravity of the buoy and the fountain aerator is not greater than the buoyancy of the buoy. There are contact oxidation ecological floating islands around the buoy, and there are several soft connections between the buoy and the contact oxidation ecological floating island. The floating device includes a fixed pile and a collar that is sleeved on the fixed pile and can move up/down on the fixed pile. The contact oxidation ecological floating island and the collar are connected by a flexible wire. 2. The contact oxidation fountain aeration system according to claim 1, characterized in that, the contact oxidation ecological floating island includes an ecological floating island and a microbial bed located at the lower end of the ecological floating island, the The microbial bed is a plurality of polymer biofilm carrier components mounted on the lower end of the ecological floating island, and the biofilm carrier component includes a connecting line and several biofilm carriers placed on the connecting line. 3. The contact oxidation fountain aeration system according to claim 2, characterized in that, the several polymer biofilm carrier components are evenly mounted on the lower end of the ecological floating island in rows and columns at equal distances. 4. The contact oxidation fountain aeration system according to claim 2 or 3, characterized in that, the end of the connecting line is tied with a counterweight. 5. The contact oxidation fountain aeration system according to claim 2 or 3, characterized in that, the ecological floating island is spliced by several PE floating basin monomers, and the outer side of the ecological floating island is installed by several The outer frame of the floating island welded by PE pipe or PPR pipe. 6. The contact oxidation fountain aeration system according to claim 5, characterized in that the bottom of the ecological floating island is covered with nylon mesh. 7. The contact oxidation fountain aeration system according to claim 6, characterized in that the pore diameter of the nylon mesh is 2-5mm. 8. The contact oxidation fountain aeration system according to claim 1, characterized in that, the buoy is provided with a grid to prevent floating objects in the water from entering the buoy. 9. The contact oxidation fountain aeration system according to claim 1, characterized in that, the fixed pile is provided with a limiting device for preventing the collar from slipping out of the fixed pile.