CN216918751U - Aquaculture normal position water treatment facilities - Google Patents

Abstract

The utility model provides an aquaculture normal position water treatment facilities, including sieve mesh reactor, float the board, the perforated pipe, the aeration pump, solar electric system and wind power generation system, sieve mesh reactor is connected in the below of floating the board, the intussuseption of sieve mesh reactor is filled with the suspension biological carrier, the fixed arrangement of perforated pipe is in sieve mesh reactor bottom, the aeration pump passes through the aeration connecting pipe and is connected with the perforated pipe, the aeration pump is connected with solar electric system and wind power generation system electricity, solar electric system and wind power generation system install on floating the board. The device floats in the aquaculture water body, and the sieve mesh reactor height does not exceed 2/3 of aquaculture pond depth of water, need not additionally to arrange the space, and the microorganism including nitrobacteria is attached to on the suspension microorganism carrier, but microorganism enrichment increases, gets rid of harmful pollutants such as ammonia nitrogen and nitrite nitrogen in the aquaculture water body fast, has simple structure, low in the cost of manufacture, need not any maintenance, need not running cost's characteristics.

Description

An aquaculture in-situ water treatment device

technical field

The utility model relates to a water treatment device for in-situ removal of harmful substances such as ammonia nitrogen and nitrite nitrogen in a water body in an aquaculture pond, belonging to the technical field of water purification.

Background technique

Still water pond culture is the main aquaculture method, and the pond needs to feed aquatic organisms with bait regularly. The harmful substances produced by the residual bait and the feces of aquatic organisms continue to accumulate in the pond, resulting in excessive ammonia nitrogen and nitrite, which are harmful to aquatic organisms. It has a direct toxic effect, and can easily lead to eutrophication of water quality, algal blooms and consumption of dissolved oxygen in the water.

Therefore, the pond needs to replace the water regularly, which not only consumes a lot of manpower and time, but also wastes a lot of water resources, and increases the discharge of water pollutants; the pond also needs to be regularly oxygenated to the water, so as to meet the needs of aquatic organisms for dissolved oxygen demand, thereby increasing the cost of farming.

Chinese patent document CN109081441A discloses a system and method for in-situ remediation of aquaculture wastewater. The system includes a nitrification reaction zone, a denitrification reaction zone and an aerated biological filter reaction zone that are arranged in series in a river channel. The amount of water and water quality in each reaction zone are set by the number of microbial carriers, the number of microbial filter materials, the amount of aeration, and the dosage of bacterial species, and then by adding specific functional microbial species to each reaction zone to make it It is attached to the microbial carrier and microbial filter material for growth and enrichment, and uses the metabolism of microorganisms to remove COD, BOD, ammonia nitrogen, total nitrogen and total phosphorus in aquaculture wastewater.

CN113429073A discloses an in-situ treatment system and an in-situ treatment method for aquaculture wastewater, the in-situ treatment system is a buried structure, and includes a pretreatment system, an electrolysis-ozone oxidation system, a percolation system and a heat pump system that are connected in sequence; In view of the synergistic effect of electro-oxidation and ozone oxidation, the percolation system utilizes the adsorption packing layer and the biological packing layer to strengthen the denitrification and phosphorus removal effect of aquaculture wastewater.

The above-mentioned in-situ treatment system for aquaculture wastewater is complex in structure, cannot be moved on the surface of aquaculture water, and has high operating costs.

At present, there is an urgent need for an aquaculture water treatment system that saves time and labor, low cost, good purification effect, fast speed, and simple operation and maintenance.

SUMMARY OF THE INVENTION

Aiming at the problem of removal of pollutants such as ammonia nitrogen and nitrite nitrogen in aquaculture ponds, the utility model proposes an aquaculture in-situ water treatment system that saves time and effort, has low cost, good purification effect and simple operation and maintenance.

The aquaculture in-situ water treatment device of the utility model adopts the following technical solutions:

The system includes a mesh reactor, a floating plate, a perforated pipe, an aeration pump, a solar power generation system and a wind energy power generation system. The mesh reactor is connected below the floating plate, and the mesh reactor is filled with suspended biological carriers. Perforated The pipes are fixedly arranged at the bottom of the sieve reactor, the aeration pump is connected with the perforated pipe through the aeration connecting pipe, the aeration pump is electrically connected with the solar power generation system and the wind power generation system, and the solar power generation system and the wind power generation system are installed on the floating board .

The sieve hole reactor is a cylindrical barrel without a cover evenly covered with sieve holes, the diameter of the sieve holes on the sieve hole reactor is 50% of the particle size of the suspended biological carrier, and the opening rate is 20%~ 40%.

The filling rate of the suspended biological carrier in the mesh reactor is 40% to 60%. The density of the suspended biological carrier is 0.94-0.97 g/cm ³ . The outer diameter of the suspended biological carrier is 9.5-30 mm, the height is 9-11 mm, and the wall thickness is 0.25-0.45 mm.

The diameter of the aeration orifice on the perforated pipe is 2 mm, and the ventilation volume of the orifice of a single hole is 1.60-1.75 m ³ /h.

The air supply volume (N m ³ /h) of the aeration pump is not less than the product of the surface flow rate (m/h) and the bottom area of the mesh reactor (m ² ), and the surface flow rate is 5-15 m/h.

The above device floats in the aquaculture water body. The height of the sieve reactor does not exceed 2/3 of the water depth of the aquaculture pond, and no additional space is required. The suspended microorganism carrier is attached to microorganisms including nitrifying bacteria, and the microorganisms can be enriched and grown, and the culture can be quickly removed The harmful pollutants such as ammonia nitrogen and nitrite nitrogen in the water greatly reduce the number of water changes and the discharge of water pollutants.

The utility model has the advantages of simple structure, low production cost, no maintenance and no running cost, and is suitable for popularization and use; it has the following characteristics:

1. By floating in the aquaculture water, it can be directly put into the aquaculture water. It is an in-situ water treatment device and does not require additional space;

2. Microorganisms including nitrifying bacteria are attached to and grow on the suspended microbial carrier. The air lift effect of aeration and oxygenation makes the aquaculture water fully contact with microorganisms such as nitrifying bacteria, so the purification effect is good and the purification speed is fast, which can greatly reduce the replacement of ponds. water frequency;

3. Aeration and oxygenation to aquaculture water can not only meet the needs of the microorganisms attached to the suspended microbial carrier, but also provide dissolved oxygen for aquatic organisms, and the shearing of the suspended microbial carrier and the bubbles makes the bubbles smaller, which can improve the water body. The oxygen transfer efficiency;

4. The microorganisms fixed on the suspended microorganism carrier are fluidized in the aquaculture water body through aeration, and the shearing action with the water makes the microorganisms realize automatic and rapid replacement without any maintenance, and the use is simple and convenient, saving time and effort;

5. The structure is simple and the production cost is low. The solar power generation system and the wind power generation system are used to power the aeration pump, and there is no operating cost;

6. The biofilm that is automatically renewed and fallen off on the suspended microbial carrier is directly released into the aquaculture water, and can also be used as bait for aquatic organisms;

7. The suspended microbial carrier always exists in the aquaculture water, which can attach and enrich the microorganisms adapted to the water body, which is not only suitable for freshwater aquaculture, but also suitable for marine aquaculture.

Description of drawings

FIG. 1 is a schematic structural diagram of the in-situ water treatment device for aquaculture of the present invention.

In the picture: 1. Sieve reactor, 2. Floating plate, 3. Suspended microorganism carrier, 4. Perforated pipe system, 5. Aeration pump, 6. Aeration connecting pipe, 7. Solar power generation system, 8. Wind power generation system, 9. Power distribution system.

Detailed ways

As shown in Figure 1, the in-situ water treatment device for aquaculture of the present invention includes a mesh reactor 1, a floating plate 2, a suspended microorganism carrier 3, a perforated pipe 4, an aeration pump 5, an aeration connecting pipe 6, a solar energy Power generation system 7 , wind energy power generation system 8 and power distribution system 9 .

The sieve hole reactor 1 is a cylindrical barrel without a cover evenly covered with sieve holes, and is fixed under the floating plate 2. The height of the sieve hole reactor 1 does not exceed 2/3 of the water depth of the culture pond. The diameter of the sieve holes on the sieve hole reactor 1 is 50% of the diameter of the suspended biological carrier 3, and the opening ratio is 20% to 40%.

The mesh reactor 1 is filled with a suspended biological carrier 3 with a filling rate of 40% to 60% and a density of 0.94 to 0.97 g/cm ³ . The suspended biological carrier 3 is a hollow structure with an outer diameter of 9.5-30 mm, a height of 9-11 mm, and a wall thickness of 0.25-0.45 mm.

The bottom of the sieve reactor 1 is evenly arranged with perforated tubes 4, the diameter of the aeration orifices on the perforated tubes 4 is 2 mm, and the ventilation volume of the orifice of a single hole is 1.60-1.75 m ³ /h.

The aeration pump 5 is connected with the perforated pipe 4 through the aeration connecting pipe 6, and the air supply (N m ³ /h) of the aeration pump 5 is not less than the surface flow velocity (m/h) and the bottom area of the sieve reactor 1 (m ² ), the surface velocity is 5-15m/h.

The aeration pump 5 is electrically connected to the solar power generation system 7 and the wind power generation system 8 . The solar power generation system 7 , the wind power generation system 8 and the power distribution system (distribution box) 9 are all fixedly installed above the floating board 2 . The power generation terminals of the solar power generation system 7 and the wind power generation system 8 are placed in the power distribution system 9 to complete power storage and supply power to the aeration pump 5 .

The operation process of the above device is as follows.

When in use, the floating plate 2, the aeration pump 5, the solar power generation system 7, the wind power generation system 8 and the power distribution system 9 are located above the water surface of the culture pond, and the mesh reactor 1, the suspended microorganism carrier 3, and the perforated pipe 4 are located in the culture pond. Below the water surface, submerged in the water body. Electric power is generated by the solar power generation system 7 and the wind power generation system 8 , and power is supplied to the aeration pump 5 through the power distribution system 9 . The aeration pump 5 aerates and oxygenates the culture water within the space range of the sieve reactor 1 through the aeration connecting pipe 6 and the perforated pipe 4, and the upward bubbles make the aquaculture water circulate in the sieve reactor 1 through air lift. , and finally overflows through the sieve hole of the uppermost layer and enters the aquaculture water body outside the space range of the sieve hole reactor 1 .

The suspended microbial carrier 3 is attached to and enriched with microorganisms such as nitrifying bacteria, and the density is close to that of water. The disturbance of aeration makes the suspended microbial carrier 3 tumble and fluidize in the sieve reactor 1, and is fully in contact with the aquaculture water body, which can quickly Removal of ammonia nitrogen, nitrite nitrogen and other pollutants in aquaculture water.

When the suspended microbial carrier 3 is tumbling and fluidizing, the air bubbles are continuously cut, so that the air bubbles become smaller, which can improve the oxygen transfer efficiency in the water body. The suspended microbial carrier 3 is used for shearing with the water body during tumbling and fluidization, which realizes the rapid replacement of microorganisms, and the shed biofilm is released into the aquaculture water, which can be used as bait for aquatic organisms.

Claims (8)

1. An aquaculture normal position water treatment facilities, characterized by: including sieve mesh reactor, float board, perforated pipe, aeration pump, solar electric system and wind power generation system, sieve mesh reactor is connected in the below of floating the board, and the intussuseption of sieve mesh reactor is filled with the suspension biological carrier, and the perforated pipe is fixed to be arranged in sieve mesh reactor bottom, and the aeration pump passes through the aeration connecting pipe and is connected with the perforated pipe, and the aeration pump is connected with solar electric system and wind power generation system electricity, and solar electric system and wind power generation system install on floating the board.

2. The aquaculture in-situ water treatment device as claimed in claim 1, wherein: the sieve pore reactor is a uncovered cylindrical barrel body uniformly distributed with sieve pores.

3. An aquaculture in situ water treatment apparatus according to claim 1 or 2 wherein: the diameter of the sieve pores on the sieve pore reactor is 50% of the particle size of the suspended biological carrier, and the opening rate is 20% -40%.

4. The aquaculture in-situ water treatment device as claimed in claim 1, wherein: the filling rate of the suspended biological carrier in the mesh reactor is 40-60%.

5. The aquaculture in-situ water treatment device as claimed in claim 1, wherein: the density of the suspended biological carrier is 0.94-0.97 g/cm³。

6. The aquaculture in-situ water treatment device as claimed in claim 1, wherein: the external diameter of the suspended biological carrier is 9.5-30 mm, the height is 9-11 mm, and the wall thickness is 0.25-0.45 mm.

7. The aquaculture in-situ water treatment device as claimed in claim 1, wherein: the diameter of an exposure hole on the perforated pipe is 2mm, and the ventilation capacity of a single hole is 1.60-1.75 m³/h。

8. The aquaculture in-situ water treatment device as claimed in claim 1, wherein: the air supply quantity of the aeration pump is not less than the product of the surface velocity and the bottom area of the sieve pore reactor.

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