CN219279640U

CN219279640U - Tail water treatment system for high-level pond

Info

Publication number: CN219279640U
Application number: CN202320021441.4U
Authority: CN
Inventors: 谢骏; 李志斐; 刘阳; 龚望宝; 方怡静; 张凯; 王广军; 夏耘
Original assignee: Pearl River Fisheries Research Institute CAFS
Current assignee: Pearl River Fisheries Research Institute CAFS
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-30
Anticipated expiration: 2033-01-05

Abstract

The utility model provides a tail water treatment system for a high-level pond, which is characterized by comprising the following components: the sedimentation tank is used for carrying out sedimentation treatment on the tail water, the bottom of the sedimentation tank is lower than the bottom of the high-level pond, and the bottom of the sedimentation tank is communicated with the bottom of the high-level pond; the biological purifying tank is communicated with the sedimentation tank through a pipeline, and plants and/or aquatic animals capable of playing a role in purifying are placed in the biological purifying tank. The system is used for treating tail water of the high-level pond, can provide power for the whole system by utilizing the height difference between the high-level pond and the treatment system, does not need additional power, and saves energy.

Description

Tail water treatment system for high-level pond

Technical Field

The utility model relates to the field of aquaculture tail water treatment, in particular to a tail water treatment system for a high-level pond.

Background

Aquaculture is divided into pond aquaculture, beach aquaculture, industrial circulating water aquaculture, cage aquaculture, dyke aquaculture and the like according to different aquaculture modes, and pond aquaculture is most common in China. The main pollutants in the pond culture tail water comprise ammonia nitrogen, organic matters, phosphorus and fouling organisms, and the main pollutants have the characteristics of low pollution, high nutrition, large discharge capacity and the like, and the main pollutants are easily damaged by being directly discharged out of the pond to the water ecological systems such as peripheral lakes, rivers and the like. At present, the aquaculture tail water treatment mode mainly comprises pond partition purification, facility purification, wetland purification and the like, and forms a tail water treatment mode such as a factory circulating water treatment technical mode, a three-pond two-dam mode, a four-pond three-dam mode, an artificial wetland mode and the like, which play an important role in tail water treatment in factory cultivation, a continuous pond and the like, but on one hand, the defects of large occupied area, difficult material replacement, high cost and the like of the measures are overcome, and the tail water treatment mode and the process are required to be improved; on the other hand, the tail water treatment modes have low pertinence to special cultivation modes such as high-level pond cultivation, container cultivation and the like, and the special cultivation modes should be suitable for the tail water treatment system according to local conditions.

Meanwhile, the utility model patent CN213895533U discloses an aquaculture tail water treatment device with three tanks and two dams, which is driven by a motor and the like in the treatment process through the cooperation of a treatment box, a filter screen, a motor, a rotating shaft, a stirring rod, a three-stage sedimentation tank, an oxidation adsorption tank, a disinfection tank, a drain pipe, a circulating motor, a circulating pipe and a tail water injection pipe, and is also required to be circulated, so that the aquaculture tail water treatment device is not applicable to a high-level pond.

Disclosure of Invention

The main purpose of the utility model is to provide a tail water treatment system for a high-level pond, which can provide power by utilizing the height difference between the tail water treatment system and the high-level pond, does not need additional power, and saves energy; and the structure is simple, and the cost is low.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a tail water treatment system for a high pond, comprising:

the sedimentation tank is used for carrying out sedimentation treatment on the tail water, the bottom of the sedimentation tank is lower than the bottom of the high-level pond, and the bottom of the sedimentation tank is communicated with the bottom of the high-level pond;

the biological purifying tank is communicated with the sedimentation tank through a pipeline, and plants and/or aquatic animals capable of playing a role in purifying are placed in the biological purifying tank.

Preferably, the bottom of the sedimentation tank is the same as the bottom of the biological purification tank.

Preferably, the pipe is located at an end of the sedimentation tank higher than an end thereof located in the biological purification tank.

Preferably, one end of the pipeline in the sedimentation tank is located below the water surface of the sedimentation tank and close to the water surface, and/or one end of the pipeline in the biological purification tank is located close to the tank bottom of the biological purification tank.

Preferably, one end of the pipeline, which is positioned in the sedimentation tank, can be adjusted up and down.

Preferably, one end of the pipeline, which is positioned in the sedimentation tank, is provided with a filter screen, the filter screen is provided with two layers, the filter screen of the inner layer is positioned in the filter screen of the outer layer, the pore diameter of the filter screen of the outer layer is larger than that of the filter screen of the inner layer, and a gap is reserved between the inner layer and the outer layer.

Compared with the prior art, the utility model has the following beneficial effects:

the system is suitable for the high-level pond, can provide power for the whole system by means of the height difference between the high-level pond and the sedimentation pond, does not need redundant energy to provide power, and saves energy; the system utilizes the physical and biological dual purification technology to fully adsorb and degrade pollutants in the tail water of the high-level pond, and reduces the pollution of fishery production to water environment.

Drawings

Fig. 1 is a schematic diagram of the present utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

The utility model provides a tail water processing system for high-order pond, includes sedimentation tank 2 with high-order pond 1 intercommunication and with sedimentation tank 2 intercommunication biological purification pond 3, sedimentation tank 2's bottom of the pool is less than high-order pond 1's bottom of the pool, and sedimentation tank 2's bottom with high-order pond 1's bottom intercommunication, because high-order pond 1's bottom of the pool height is higher than sedimentation tank 2's bottom of the pool height, and then tail water in high-order pond 1 can submerge in sedimentation tank 2 automatically. The sedimentation tank 2 is used for carrying out sedimentation treatment on the tail water, and the biological purification tank 3 is used for further purifying the tail water by organisms. Flocculant can be added into the sedimentation tank 2, and plants or aquatic animals such as silver carp, oyster and the like can be cultivated in the biological purification tank 3. Aquatic plants, such as hydrilla verticillata, armpit algae, etc., can be planted in the sedimentation tank 2, and other suitable plants can be used for increasing the interception of solid particles. Preferably, the bottom of the sedimentation tank 2 is the same as the bottom of the biological purification tank 3.

The sedimentation tank 2 is communicated with the biological purification tank 3 through a pipeline 4, preferably, the pipeline 4 is a U-shaped pipe, and the pipeline 4 is positioned at one end of the sedimentation tank 2 which is higher than one end of the sedimentation tank 2 which is positioned in the biological purification tank 3, so that the cleaner water in the sedimentation tank 2 can automatically enter the biological purification tank 3. Preferably, the end of the pipe 3 located in the sedimentation tank 2 is located below the water surface of the sedimentation tank 2 and close to the water surface, and the water with the cleaner upper side is entered into the pipe 4 as much as possible. Preferably, the pipe 4 is located at one end of the biological purification tank 3 near the bottom of the biological purification tank 3, so that when water in the sedimentation tank 2 enters the biological purification tank 3, sediment at the bottom of the tank can be carried up or fluctuation of the water in the biological purification tank 3 can be increased as much as possible, and plants and aquatic animals in the water can be purified better. In practice, the sedimentation tank 2 and the biological purification tank 3 may be disposed close to each other, which saves space and reduces the floor space, and the distance may be determined according to practical situations.

Preferably, the end of the pipe 4 located at the sedimentation tank 2 may be provided to be adjustable up and down, so that the height of the pipe 4 located at the end of the sedimentation tank 2 can be adjusted according to the height of the liquid level of the sedimentation tank 2. In particular, the adjustment can be performed manually or automatically, and the pipe 4 can be provided as a hose or as a telescopic tube.

Further, a filter screen 5 is arranged at one end of the pipeline 4, which is positioned in the sedimentation tank 2, and the filter screen 5 is used for filtering solid impurities or pollutants with larger sizes, so that on one hand, the pipeline 4 is prevented from being blocked by the larger solid impurities as much as possible, and on the other hand, water in the sedimentation tank 2 can be further filtered. Specifically, the filter screen 5 has two layers, the filter screen of inlayer is located the filter screen of inlayer, and the aperture of the filter screen of inlayer is greater than the aperture of the filter screen of inlayer, has the clearance between inlayer and the skin, and the filter screen of inlayer is mainly used for filtering large-scale debris, and the aperture of the filter screen of inlayer can be set to one of 60 meshes, 80 meshes, 100 meshes according to actual conditions, of course also can be other sizes. The filter screen 5 may be cylindrical or hemispherical, although other suitable shapes are possible.

Further, an escape preventing net is arranged at the position connected with the sedimentation tank 2 at the bottom of the high-level pond 1 and used for preventing the cultured fish from escaping.

Preferably, the floating raft can be used for planting rice on the water surface of the sedimentation tank 2, so that the efficient utilization of resources is improved, and the double functions of production and tail water purification are realized.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A tail water treatment system for a high pond, comprising:

2. A tail water treatment system for a high pond according to claim 1, wherein the bottom of the sedimentation tank is at the same height as the bottom of the biological purification tank.

3. A tail water treatment system for an elevated pond according to claim 2, wherein the conduit is located at an end of the sedimentation tank higher than an end thereof located in the biological purification tank.

4. A tail water treatment system for an elevated pond according to claim 3, wherein one end of the pipe in the sedimentation tank is located below and near the water surface of the sedimentation tank and/or one end of the pipe in the biological purification tank is located near the bottom of the biological purification tank.

5. The tail water treatment system for an elevated pond according to claim 4, wherein an end of the pipe at the sedimentation tank is adjustable up and down.

6. The tail water treatment system for a high-level pond according to claim 5, wherein a filter screen is provided at one end of the pipe located in the sedimentation tank, the filter screen having two layers, the filter screen of the inner layer being located in the filter screen of the outer layer, the filter screen of the outer layer having a larger pore size than the filter screen of the inner layer, and a gap being provided between the inner layer and the outer layer.