Water lifting type prawn culture tail water and water quality diversion treatment system

Abstract

The utility model discloses a water lifting type prawn culture tail water and water quality diversion treatment system which is characterized in that a bottom blow-off pipe is laid at the bottom of a culture pond and is communicated with one end of a blow-off plugging pipe, and the blow-off plugging pipe is communicated with the side wall of a black water blow-off pipe; the outlet end of the black water discharge pipe is communicated with a vacuum water diversion tank, the vacuum water diversion tank is connected with a self-priming centrifugal pump, and the other end of the self-priming centrifugal pump is connected with a black water collection system through a black water pipeline; a grey water blow-off pipe is laid at the bottom of the blow-off well, the outlet end of the grey water blow-off pipe is connected with a concentration well, and the concentration well is connected with a grey water concentration system through a grey water pipeline; the aquaculture tail water treatment device can effectively separate aquaculture tail water with different pollutant concentrations, realizes targeted treatment, and improves the treatment efficiency and effect. Through quality division and flow division, the burden of a single treatment system is relieved, mutual interference in the treatment process is avoided, and it is ensured that the treated water quality is more stable and reaches the standard. Meanwhile, the facility can promote cyclic utilization of resources and reduce pollutant emission.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to a water-lifting type shrimp farming tail water quality separation and treatment system. Background Art

[0002] Pumped aquaculture involves high-density, intensive aquaculture in ponds constructed above the high tide line. The main species cultivated are shrimp and king prawns. Discharge is characterized by intermittent flow and high instantaneous water volumes. Due to the high density and high feed intake, the aquaculture tailwater contains high concentrations of pollutants and a complex composition, including large amounts of suspended solids, nitrogen, and phosphorus. Pumped aquaculture ponds typically utilize a central sewage system. Large particles of organic matter, such as feces and leftover bait, settle in the center of the pond bottom, forming an organic-rich sediment near the central outfall. This results in higher pollutant concentrations in the water near the central outfall than in the upper water column. During discharge, aquaculture tailwater is often discharged directly into the tailwater treatment system or natural water bodies through a pipe at the bottom of the central outfall without prior separation. This mixed discharge method easily mixes the aquaculture tailwater and leftover bait and feces, causing most of the pollutants in the leftover bait and feces to break up and dissolve in the water. This results in moderately high levels of pollution in the aquaculture tailwater, increasing the difficulty and cost of sewage treatment. The treatment efficiency of the mixed complex tailwater is low, the treatment effect is poor, and the tailwater is difficult to meet the discharge standards. The discharge of tailwater without effective treatment may pollute the surrounding water environment, such as causing eutrophication of water bodies, destroying aquatic ecosystems, etc., posing a threat to the surrounding ecological environment and human health. In addition, due to the complexity of pollutants in tailwater that has not been separated and diverted, the difficulty of resource recovery is greatly increased. Many valuable resources cannot be effectively recycled and utilized, resulting in resource waste. Therefore, the separation and diversion treatment technology currently on the market has emerged. This technology is based on the discharge characteristics of high initial concentration and low concentration in the later stage of water-lift shrimp farming tailwater. Through separation and diversion, the efficiency of the later tailwater treatment is significantly improved, the difficulty and cost of treatment are reduced, the impact on the environment is reduced, and resource recovery is carried out in a targeted manner.

[0003] However, the existing water-lifting shrimp farming tailwater separation and diversion treatment system is still imperfect. Therefore, the development of an efficient, stable, and economical water-lifting shrimp farming tailwater separation and diversion treatment system is of great significance to promoting the green transformation and sustainable development of the aquaculture industry. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the utility model provides a water-lifting shrimp farming tail water quality separation and treatment system.

[0005] The technical solution of the utility model is as follows:

[0006] A water-lifting shrimp aquaculture tail water separation and diversion treatment system comprises a breeding pond, a sewage well and a concentration well. A bottom sewage pipe is laid at the bottom of the breeding pond, a sewage plug-in pipe is provided in the sewage well, the bottom sewage pipe is connected to one end of the sewage plug-in pipe, and the sewage plug-in pipe is connected to the side wall of the black water sewage pipe; the outlet end of the black water sewage pipe is connected to a vacuum water diversion tank, the vacuum water diversion tank is connected to a self-priming centrifugal pump, and the other end of the self-priming centrifugal pump is connected to a black water collection system through a black water pipeline; a gray water sewage pipe is laid at the bottom of the sewage well, the outlet end of the gray water sewage pipe is connected to the concentration well, and the concentration well is connected to the gray water concentration system through the gray water pipeline.

[0007] Preferably, a grey water sewage pump is installed on the grey water pipeline.

[0008] Preferably, there are 1 to 4 sewage plug-in pipes, which are evenly distributed in the sewage well.

[0009] This utility model has the following beneficial effects: by installing a vacuum water diversion tank and a self-priming centrifugal pump, in the initial stage of drainage, in conjunction with the newly installed sewage plug-in pipe and black water sewage pipe, it is more conducive to pumping tail water into the black water collection system for deep treatment; in the later stage of drainage, in conjunction with the added gray water pipeline and gray water centralized system, it can effectively separate aquaculture tail water with different pollutant concentrations, achieve targeted treatment, and improve treatment efficiency and effectiveness. By separating and diverting the flow, the burden of a single treatment system is reduced, mutual interference during the treatment process is avoided, and the treated water quality is ensured to be more stable and meet the standards. At the same time, this facility can also promote the recycling of resources and reduce pollutant emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a vertical cross-sectional view of the overall system of the utility model;

[0011] Figure 2 It is a top plan view of the overall system of the utility model.

[0012] The reference numerals in the figures are as follows:

[0013] 1. Breeding pond; 2. Bottom sewage pipe; 3. Sewage well; 4. Sewage plug-in pipe; 5. Black water sewage pipe; 6. Vacuum water diversion tank; 7. Self-priming centrifugal pump; 8. Black water pipeline; 9. Black water collection system; 10. Gray water sewage pipe; 11. Centralizing well; 12. Gray water sewage pump; 13. Gray water pipeline; 14. Gray water centralizing system. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figures 1 to 2 A water-lifting shrimp farming tail water separation and diversion treatment system includes a breeding pond 1, a sewage well 3 and a centralized well 11. A bottom sewage pipe 2 is laid at the bottom of the breeding pond 1, and a sewage plug-in pipe 4 is provided in the sewage well 3. The bottom sewage pipe 2 is connected to one end of the sewage plug-in pipe 4, and the sewage plug-in pipe 4 is connected to the side wall of the black water sewage pipe 5; the outlet end of the black water sewage pipe 5 is connected to the vacuum water diversion tank 6, and the vacuum water diversion tank 6 is connected to the self-priming centrifugal pump 7. The other end of the self-priming centrifugal pump 7 is connected to the black water collection system 9 through the black water pipeline 8; a gray water sewage pipe 10 is laid at the bottom of the sewage well 3, and the outlet end of the gray water sewage pipe 10 is connected to the centralized well 11, and the centralized well 11 is connected to the gray water centralized system 14 through the gray water pipeline 13.

[0016] Furthermore, a grey water sewage pump 12 is installed on the grey water pipeline 13 .

[0017] Furthermore, there are 1 to 4 sewage plug-in pipes 4, and they are located on the same circumference.

[0018] The working principle of this utility model:

[0019] In the present invention, a bottom sewage pipe 2 is laid at the bottom of the culture pond 1, and a sewage plug-in pipe 4 is provided in the sewage well 3. The bottom sewage pipe 2 is connected to one end of the sewage plug-in pipe 4, and the sewage plug-in pipe 4 is connected to the side wall of the black water sewage pipe 5. There are 1 to 4 sewage plug-in pipes 4, and they are evenly distributed inside the sewage well 3. At the same time, in this embodiment, there are 4 sewage plug-in pipes 4, which are located on the same circumference and arranged at a 90° angle to each other, which is more conducive to the centralized collection of sewage into the black water collection system 9;

[0020] The outlet end of the black water sewage pipe 5 is connected to the vacuum water diversion tank 6, the vacuum water diversion tank 6 is connected to the self-priming centrifugal pump 7, and the other end of the self-priming centrifugal pump 7 is connected to the black water collection system 9 through the black water pipe 8; a gray water sewage pipe 10 is laid at the bottom of the sewage well 3, and the outlet end of the gray water sewage pipe 10 is connected to the central well 11, and the central well 11 is connected to the gray water centralization system 14 through the gray water pipe 13, and a gray water sewage pump 12 is installed on the gray water pipe 13.

[0021] First, install a vacuum water diversion tank 6 and a self-priming centrifugal pump 7 around the aquaculture pond 1. These are connected to the newly installed black water drainage pipe 5 in the drainage plug-in pipe 4. The other end of the self-priming centrifugal pump 7 is connected to a black water pipeline 8 to facilitate the pumping of tailwater to the black water collection system 9. Next, inject an appropriate amount of water into the vacuum water diversion tank 6 to expel air and create a vacuum environment. Next, start the self-priming centrifugal pump 7. Due to the vacuum in the vacuum water diversion tank 6, the self-priming centrifugal pump 7 can quickly draw in the tailwater and begin transporting it. Finally, adjust the valve at the outlet of the self-priming centrifugal pump 7 to adjust the flow rate and pressure of the water.

[0022] At the initial stage of drainage, the tail water (black water) with a higher pollutant concentration in the aquaculture pond 1 first enters the sewage plug-in pipe 4 in the sewage well 3 from the bottom sewage pipe 2. Through the combined action of the vacuum water diversion tank 6 and the self-priming centrifugal pump 7, the initial tail water is sucked upward from the black water sewage pipe 5 in the sewage plug-in pipe 4, and then transported to the black water collection system 9 through the black water pipeline 8 for deep treatment.

[0023] In the later stage of drainage, the tail water with lower pollutant concentration in the later stage is discharged from the sewage well 3 through the gray water sewage pipe 10 into the centralized well 11 by pulling out the sewage plug-in pipe 4. The centralized well 11 lifts the tail water to the gray water centralized system 14 for treatment through the gray water sewage pump 12 and the gray water pipeline 13.

[0024] Due to gravity, large particles such as leftover bait and feces settle at the bottom of the culture pond 1, causing the concentration of pollutants in the water near the central sewage outlet to be higher than that in the upper water body. As a result, the tail water of the water-lifting shrimp farming has the characteristics of high concentration in the early stage of drainage and low concentration in the later stage. Therefore, the utility model separates and separates the tail water for discharge. The high-concentration tail water in the early stage of drainage is pumped by a self-priming centrifugal pump 7 to the black water collection system 9 for deep treatment. When the water absorption conditions are poor, a vacuum water diversion tank 6 is equipped to improve the self-priming capacity. The low-concentration tail water in the later stage of drainage is introduced into the centralized well 11 through the sewage plug-in pipe 4 and transported to the gray water centralized system 14 for treatment by the gray water sewage pump 12.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A water-lifting shrimp farming tail water quality separation and treatment system, characterized by: The invention comprises a culture pond (1), a sewage well (3) and a concentration well (11); a bottom sewage pipe (2) is laid at the bottom of the culture pond (1); a sewage plug-in pipe (4) is arranged in the sewage well (3); the bottom sewage pipe (2) is connected to one end of the sewage plug-in pipe (4); the sewage plug-in pipe (4) is connected to the side wall of a black water sewage pipe (5); the outlet end of the black water sewage pipe (5) is connected to a vacuum water diversion tank (6); the vacuum water diversion tank (6) is connected to a self-priming centrifugal pump (7); the other end of the self-priming centrifugal pump (7) is connected to a black water collection system (9) through a black water pipeline (8); a gray water sewage pipe (10) is laid at the bottom of the sewage well (3); the outlet end of the gray water sewage pipe (10) is connected to a concentration well (11); the concentration well (11) is connected to a gray water concentration system (14) through a gray water pipeline (13).

2. A water-lifting shrimp farming tail water quality separation and treatment system according to claim 1, characterized in that: A grey water sewage pump (12) is installed on the grey water pipeline (13).

3. The water extraction type shrimp farming tail water separation and treatment system according to claim 1 is characterized by: The sewage plug-in pipes (4) are provided in a number of 1 to 4 and are evenly distributed in the sewage well (3).

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