Ecological breeding device for transforming and upgrading eel intensive culture pond

Abstract

The utility model relates to an ecological breeding device for transforming and upgrading an eel intensive culture pond, which comprises an eel intensive culture pond, a microfilter and an MBBR (moving bed biofilm reactor) biological treatment pond, the eel intensive culture pond is connected with the microfilter through a first drain pipe, the microfilter is connected with the MBBR biological treatment pond through a second drain pipe, and the second drain pipe is connected with the MBBR biological treatment pond through a third drain pipe. And the eel culture intensive culture pond is connected with the MBBR biological treatment pond through a water return pipe. The device is simple in structure, reasonable in design and convenient to use, sewage in the eel culture intensive culture pond is filtered through the MBBR biological treatment pond, harmful substances such as ammonia nitrogen and nitrite are removed, the filtered and qualified water is recycled, and environment protection is facilitated.

Description

Technical Field

[0001] The utility model relates to an ecological seedling raising and breeding device for transforming and upgrading an intensive eel breeding pond. Background Art

[0002] Traditional eel breeding ponds generally adopt a large water intake and discharge method, replacing all the sewage in the breeding pond with new water. This large water replacement method not only wastes precious water resources, but the sewage discharged to the outside will also pollute the aquatic environment. In addition, the newly incoming water needs to be heated to the eel breeding temperature of 28 degrees before the breeding pond is replaced, resulting in a waste of energy. At the same time, due to the instability of the water source, sometimes the water change will also lead to unstable water quality after the water change, which will affect the growth of the eels. Utility Model Content

[0003] The utility model improves the above-mentioned problems, that is, the technical problem to be solved by the utility model is to provide an ecological seedling breeding device for transforming and upgrading eel intensive breeding ponds, which is easy to use, water-saving and environmentally friendly, and fully utilizes the existing intensive breeding ponds for transformation and upgrading.

[0004] The utility model is constructed as follows: it comprises an eel breeding intensive pond, a microfilter and an MBBR biological treatment pond, wherein the eel breeding intensive pond and the microfilter are connected via a first drainage pipe, the microfilter and the MBBR biological treatment pond are connected via a second drainage pipe, and the eel breeding intensive pond and the MBBR biological treatment pond are connected via a return water pipe.

[0005] Furthermore, a water replenishment tank is arranged outside the eel breeding intensive pond, and the water replenishment tank is connected to the eel breeding intensive pond via a water replenishment pipe.

[0006] Furthermore, a return water pump is provided on the return water pipe.

[0007] Furthermore, a tail water treatment device is also provided at the input end of the second drain pipe, and the tail water treatment device is connected to the first drain pipe via a tail water pipeline.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the device has a simple structure and is easy to use. The sewage in the eel breeding intensive pond is filtered out with a microfilter to filter feces and organic matter in the water. The filtered sewage is divided into two paths: one path is 80%-90% of the filtered sewage, and the other path is 10%-20% of the sewage with filtered feces. The 80%-90% filtered sewage enters the MBBR biological treatment pool, and the ammonia nitrogen and nitrite in the sewage are degraded and then returned to the eel breeding intensive pond through the return pipe for recycling. The 10%-20% of the sewage with feces in the eel breeding intensive pond is returned to the eel breeding intensive pond through the tailwater pipe. It enters the tailwater treatment device for harmful substances treatment before discharge, or 10%-20% of the sewage containing feces can be used to breed omnivorous fish, such as tilapia and catfish. After breeding omnivorous fish, the sewage is then passed into the tailwater treatment device for sewage treatment; by filtering the sewage in the eel breeding pond through the MBBR biological treatment tank, harmful substances such as ammonia nitrogen and nitrite are removed, and the filtered qualified water quality is recycled, which is beneficial to protect the environment; by recycling water, the energy loss of heating water is reduced. Because it is recycled, the water quality in the eel breeding pond can be kept stable to ensure the growth rate of eels. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0011] Example: Figure 1 As shown, in this embodiment, an ecological seedling breeding device for transforming and upgrading an eel intensive breeding pond is provided, comprising an eel breeding intensive breeding pond 1, a microfiltration machine 2 and an MBBR biological treatment tank 3. The eel breeding intensive breeding pond adopts an existing eel breeding intensive breeding pond, and the area of ​​the above-mentioned eel breeding intensive breeding pond is 225 square meters to 350 square meters. The eel breeding intensive breeding pond is connected to the microfiltration machine via a first drainage pipe 4, the microfiltration machine is connected to the MBBR biological treatment tank via a second drainage pipe 5, and the eel breeding intensive breeding pond is connected to the MBBR biological treatment tank via a return pipe 6.

[0012] During operation: the sewage in the eel breeding pond is filtered through the microfiltration machine in turn to remove feces and organic matter in the water. The filtered sewage is divided into two routes: one route is 80%-90% filtered sewage, and the other route is 10%-20% sewage with filtered feces. The 80%-90% filtered sewage enters the MBBR biological treatment pool, and after degrading the ammonia nitrogen and nitrite in the sewage, it is returned to the eel breeding pond through the return pipe for recycling. The 10%-20% sewage with feces in the eel breeding pond enters the tailwater treatment device through the tailwater pipeline, and is discharged after phosphorus and nitrogen reduction. At the same time, the water replenishment pool replenishes 10%-20% of the eel breeding pond. exogenous water; preferably, 10%-20% of the sewage with feces can be used to breed omnivorous fish, such as tilapia and catfish, and the sewage from breeding omnivorous fish is then passed into the tailwater treatment device for sewage treatment; the sewage in the eel breeding pond is filtered through the MBBR biological treatment tank to remove harmful substances such as ammonia nitrogen and nitrite, and the filtered qualified water quality is recycled. The organic matter filtered out of the microfiltration machine can be used to breed omnivorous fish, which is resource-based and beneficial to environmental protection; by recycling water, the energy loss of heating water is reduced. Due to the recycling, the water quality in the intensive breeding pond can be kept stable to ensure the growth rate of eels.

[0013] 80%-90% of the sewage in the eel breeding pond (the sewage with feces filtered out) is filtered out by a microfilter to remove feces and organic matter in the water and then enters the MBBR biological treatment pool. After the ammonia nitrogen and nitrite in the sewage are degraded, it returns to the eel breeding pond through the return pipe. 10%-20% of the sewage in the eel breeding pond (i.e. the filtered feces and a small amount of water) enters the tailwater treatment device through the tailwater pipeline for phosphorus removal and nitrogen reduction before being discharged. At the same time, the water replenishment pool adds 10%-20% of external water to the eel breeding pond. The organic matter filtered out by the microfilter can be used to breed omnivorous fish for resource utilization.

[0014] The above-mentioned MBBR biological treatment pool is the prior art. MBBR is a moving bed biofilm reactor. The MBBR process principle adopted by the MBBR biological treatment pool is to use the basic principle of the biofilm method, making full use of the advantages of the activated sludge method, and overcoming the shortcomings of the traditional activated sludge method and the fixed biofilm method. This method increases the biomass and biological species in the reactor by adding a certain amount of suspended carriers to the reactor, thereby improving the treatment efficiency of the reactor. Since the density of the filler is close to that of water, it is completely mixed with water during aeration, and the environment for the growth of microorganisms is a three-phase gas, liquid and solid. The collision and shearing action of the carrier in the water make the air bubbles smaller and increase the utilization rate of oxygen. In addition, each carrier has different biological species inside and outside, with some anaerobic bacteria or facultative aerobic bacteria growing inside and aerobic bacteria outside. In this way, each carrier is a microreactor, so that nitrification and denitrification reactions exist at the same time, thereby improving the treatment effect.

[0015] The above-mentioned microfiltration machine is prior art.

[0016] In the embodiment of the utility model, a water replenishment pool 7 is arranged outside the eel breeding intensive breeding pool, the water temperature of the water replenishment pool is 28 degrees, and the water replenishment pool is connected to the eel breeding intensive breeding pool via a water replenishment pipe 8.

[0017] In the embodiment of the utility model, a return water pump 9 is provided on the return water pipe.

[0018] In an embodiment of the utility model, a tailwater treatment device 10 is also provided at the input end of the second drain pipe, and the tailwater treatment device is connected to the first drain pipe via a tailwater pipeline 11; the tailwater treatment device can also be an MBBR biological treatment tank or other existing sewage treatment equipment, and the clean water after treatment can be discharged without pollution.

[0019] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values ​​to be exhaustive, the utility model discloses only some numerical values ​​to illustrate the technical solution of the utility model, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the utility model.

[0020] If the words "first", "second" and so on are used in this article to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.

[0021] At the same time, if the above-mentioned utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0022] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0023] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. An ecological seedling raising and breeding device for upgrading an eel intensive breeding pond, characterized in that: The invention comprises an eel breeding intensive pond, a microfilter and an MBBR biological treatment pond, wherein the eel breeding intensive pond is connected to the microfilter via a first drainage pipe, the microfilter is connected to the MBBR biological treatment pond via a second drainage pipe, and the eel breeding intensive pond is connected to the MBBR biological treatment pond via a return water pipe.

2. The ecological seedling raising and breeding device for upgrading the eel intensive breeding pond according to claim 1 is characterized in that: A water replenishment pool is arranged outside the eel breeding intensive breeding pool, and the water replenishment pool is connected to the eel breeding intensive breeding pool via a water replenishment pipe.

3. The ecological seedling raising and breeding device for upgrading the eel intensive breeding pond according to claim 1 is characterized in that: The water return pipe is provided with a water return pump.

4. The ecological seedling raising and breeding device for upgrading the eel intensive breeding pond according to claim 1 is characterized in that: A tail water treatment device is also provided at the input end of the second drainage pipe, and the tail water treatment device is connected to the first drainage pipe via a tail water pipeline.

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