1. A purified tail water treatment device for aquaculture is characterized by comprising a purifying device and a water absorption culturing device, wherein the purifying device is connected with the water absorption culturing device to purify waste water; wherein

The purification equipment comprises a purification tank, a filter plate, a filter screen, an MBR membrane, a dosing tank, a drug guide pipe, an aeration pipe, a fan and a stirrer, wherein the filter plate is fixedly connected with the purification tank and positioned on one side of the purification tank, the dosing tank is fixedly connected with the purification tank and positioned on one side of the purification tank, the drug guide pipe is fixedly connected with the purification tank and fixedly connected with the dosing tank and positioned between the dosing tank and the purification tank, the fan is fixedly connected with the purification tank and positioned on one side of the dosing tank, the aeration pipe is fixedly connected with the fan and fixedly connected with the purification tank and positioned between the purification tank and the fan, the stirrer is fixedly connected with the purification tank and positioned at the bottom of the purification tank, the filter screen is fixedly connected with the purification tank and positioned on one side of the filter screen, MBR membrane with filter screen fixed connection, and be located the filter screen is kept away from filter one side.

2. The purified tail water treatment device for aquaculture of claim 1,

the purifying equipment further comprises a clean water tank, a water quality monitor and a circulating water pump, wherein the clean water tank is fixedly connected with the purifying tank and is positioned on one side of the purifying tank, the water quality monitor is fixedly connected with the clean water tank and is positioned on one side of the clean water tank, and the circulating water pump is fixedly connected with the clean water tank and is positioned on one side of the clean water tank.

3. The purified tail water treatment device for aquaculture of claim 1,

the mixer includes agitator motor and rotating vane, agitator motor with purification tank fixed connection, and be located the purification tank bottom, rotating vane with agitator motor fixed connection, and be located in the purification tank.

4. The purified tail water treatment device for aquaculture of claim 2,

the purifying equipment further comprises a backwashing pump and a drain outlet, the drain outlet is fixedly connected with the purifying tank and is positioned at the bottom of the purifying tank, and the backwashing pump is fixedly connected with the clean water tank and is positioned on one side of the clean water tank.

5. The purified tail water treatment device for aquaculture of claim 1,

the clarification plant still includes connector and pneumatic cylinder, the pneumatic cylinder with purification tank fixed connection, and be located the purification tank top, the connector with the pneumatic cylinder is dismantled and is connected, and with filter fixed connection, and be located the pneumatic cylinder with between the filter.

6. The purified tail water treatment device for aquaculture of claim 1,

the purifying equipment further comprises a storage battery box and a solar electric plate, the storage battery box is fixedly connected with the purifying cell and is positioned on one side of the purifying cell, and the solar electric plate is electrically connected with the storage battery box and is positioned at the top of the storage battery box.

7. The purified tail water treatment device for aquaculture of claim 6,

the purifying equipment further comprises a control cabinet and an umbrella cover, the control cabinet is fixedly connected with the purifying battery and is positioned on one side of the storage battery box, and the umbrella cover is fixedly connected with the control cabinet and is positioned at the top of the control cabinet.

8. The purified tail water treatment device for aquaculture of claim 7,

the control cabinet comprises a shell and a controller, the shell is fixedly connected with the purification battery and is positioned on one side of the storage battery box, and the controller is fixedly connected with the shell, is electrically connected with the storage battery box and is positioned in the shell.

Background

Aquaculture is the production activity of breeding, cultivating and harvesting aquatic animals and plants under artificial control. Generally comprises the whole process of cultivating aquatic products from seedlings under artificial feeding management. Because the biological density of the aquaculture plant is high, a large amount of metabolites, garbage wastes, putrefactive organisms and the like are generated, most of the metabolites are collected and temporarily stored in a sewage tank, so that the surrounding environment of the aquaculture plant is polluted, unpleasant odor is volatilized, and wastewater treatment equipment is required to be used for treating the wastewater.

However, the existing aquaculture wastewater treatment equipment has single function, is inconvenient for effectively purifying, disinfecting and filtering wastewater, has turbidity phenomenon in the purified water, and is difficult to reach the standard in ammonia nitrogen and organic matter treatment, thereby bringing troubles to the aquaculture industry.

Disclosure of Invention

The invention aims to provide a purified tail water treatment device for aquaculture, and aims to solve the problems that the existing aquaculture wastewater treatment equipment is single in function, and the purified water is difficult to reach the standard.

In order to achieve the aim, the invention provides a purified tail water treatment device for aquaculture, which comprises a purifying device and a water-absorbing culture device, wherein the purifying device is connected with the water-absorbing culture device to purify waste water; wherein

The purification equipment comprises a purification tank, a filter plate, a filter screen, an MBR membrane, a dosing tank, a drug guide pipe, an aeration pipe, a fan and a stirrer, wherein the filter plate is fixedly connected with the purification tank and positioned on one side of the purification tank, the dosing tank is fixedly connected with the purification tank and positioned on one side of the purification tank, the drug guide pipe is fixedly connected with the purification tank and fixedly connected with the dosing tank and positioned between the dosing tank and the purification tank, the fan is fixedly connected with the purification tank and positioned on one side of the dosing tank, the aeration pipe is fixedly connected with the fan and fixedly connected with the purification tank and positioned between the purification tank and the fan, the stirrer is fixedly connected with the purification tank and positioned at the bottom of the purification tank, the filter screen is fixedly connected with the purification tank and positioned on one side of the filter screen, MBR membrane with filter screen fixed connection, and be located the filter screen is kept away from filter one side, the filter carries out prefilter, the dosing tank with the medicament pipe cooperation is added the medicament, to waste water disinfection and flocculation and precipitation, the fan with the nitrogen ammonia material is eliminated to the aeration pipe, gives waste water oxygenation simultaneously.

Wherein, clarification plant still includes clean water basin, water quality monitoring appearance and circulating water pump, the clean water basin with purification tank fixed connection, and be located purification tank one side, water quality monitoring appearance with clean water basin fixed connection, and be located clean water basin one side, circulating water pump with clean water basin fixed connection, and be located clean water basin one side, the water after the purification treatment is deposited to the clean water basin, the water quality testing appearance inspection the water in the clean water basin.

Wherein, the mixer includes agitator motor and rotating blade, agitator motor with purification tank fixed connection, and be located the purification tank bottom, rotating blade with agitator motor fixed connection, and be located in the purification tank, agitator motor rotates and makes rotating blade rotates to stirring waste water.

Wherein, clarification plant still includes backwash pump and drain, the drain with purification tank fixed connection, and be located the purification tank bottom, the backwash pump with clean water basin fixed connection, and be located clean water basin one side, the backwash pump is taken water in the clean water basin is right in the purification tank filter screen and MBR membrane backwash, the drain blowdown prevents impurity in the purification tank influences purification next time.

Wherein, clarification plant still includes connector and pneumatic cylinder, the pneumatic cylinder with purification tank fixed connection, and be located the purification tank top, the connector with the pneumatic cylinder is dismantled and is connected, and with filter fixed connection, and be located the pneumatic cylinder with between the filter, the pneumatic cylinder will organic matter and large granular material above the clearance are mentioned to the filter, connector convenient to detach the filter.

The purifying equipment further comprises a storage battery box and a solar electric plate, the storage battery box is fixedly connected with the purifying cell and is located on one side of the purifying cell, the solar electric plate is electrically connected with the storage battery box and is located at the top of the storage battery box, the storage battery box provides electric energy for electric elements of the electric equipment, and the solar electric plate converts solar energy into electric energy resources.

The purifying equipment further comprises a control cabinet and an umbrella cover, the control cabinet is fixedly connected with the purifying battery and is located on one side of the storage battery box, the umbrella cover is fixedly connected with the control cabinet and is located at the top of the control cabinet, the control cabinet control equipment runs, and the umbrella cover is used for keeping off rain for the control cabinet.

The control cabinet comprises a shell and a controller, the shell is fixedly connected with the purification battery and is positioned on one side of the storage battery box, the controller is fixedly connected with the shell, is electrically connected with the storage battery box and is positioned in the shell, and the shell protects the controller by controlling the operation of equipment.

The invention provides a purified tail water treatment device for aquaculture, when treating wastewater fed by aquatic products, the wastewater is guided into a purification tank, the wastewater is preliminarily filtered through a filter plate, larger organic matters and large granular substances in the wastewater are removed and filtered, medicaments are stored through a medicament feeding box, the medicaments in the medicament feeding box are guided into the purification tank through a medicament guiding pipe, the wastewater in the purification tank is disinfected and flocculated and precipitated, the precipitated substances are filtered through a filter screen and an MBR membrane, wherein small molecular substances in the MBR membrane are filtered through the MBR membrane, the water purification effect is further enhanced, a fan blows air into the purification tank through an aeration pipe, the aeration reaction is carried out to eliminate nitrogen ammonia substances, the wastewater is oxygenated at the same time, the purification treatment of the wastewater fed by the aquatic products is finished, and a stirrer rotationally stirs the wastewater in the purification tank in the two steps, quicken the speed of flocculating settling and eliminating nitrogen and ammonia substances and improve the water purification efficiency. The invention has multiple filtration and deep purification. Solves the problems that the existing aquaculture wastewater treatment equipment has single function and the purified water is difficult to reach the standard.

Drawings

FIG. 1 is a schematic structural view of a purified tail water treatment device for aquaculture provided by the invention;

FIG. 2 is a side view of a purified tail water treatment apparatus for aquaculture according to the present invention;

FIG. 3 is a top view of a purified tail water treatment apparatus for aquaculture according to the present invention;

FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along plane B-B of FIG. 3;

FIG. 6 is a schematic view of the overall structure of the aquaculture apparatus of the present invention;

FIG. 7 is a schematic view of the water-sucking farming equipment of the present invention, partly in section;

FIG. 8 is a schematic diagram of the structure of the water-absorbing farming equipment of the present invention as viewed from the right;

FIG. 9 is a schematic structural view from the top side of the aquaculture apparatus of the present invention;

FIG. 10 is a schematic structural view of the water-absorbing culture apparatus of the present invention.

In the figure: 1-purifying equipment, 2-purifying tank, 3-filter plate, 4-filter screen, 5-MBR membrane, 6-dosing tank, 7-drug guide pipe, 8-aeration pipe, 9-blower, 10-stirrer, 11-clear water tank, 12-water quality monitor, 13-backwashing pump, 14-sewage outlet, 15-connector, 16-hydraulic cylinder, 17-accumulator tank, 18-solar panel, 19-control cabinet, 20-umbrella cover, 21-circulating water pump, 101-stirring motor, 102-rotating blade, 191-shell, 192-controller, a 100-water-absorbing cultivation equipment, a 2-cultivation tank, a 3-absorbing pipeline, a 4-water inlet pipeline, a 5-precipitation device, a 6-water-absorbing device, a 7-an oxygen-increasing machine, a 8-a waterproof layer, a 21-a sewage collecting tank, a 51-a settling plate, a 52-a sewage inlet funnel, a 53-a water purifier, a 61-a water suction pipe, a 62-a water suction driving component, a 63-a filter screen, a 65-a switch valve, a 621-a water suction pump and a 622-a pump mounting seat.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1 to 5, the embodiment provides a purified tail water treatment device for aquaculture, which mainly includes a purification device 1 and a water absorption cultivation device a100, wherein the purification device 1 is connected with the water absorption cultivation device a100 to purify waste water, and water in the water absorption cultivation device a100 flows into the purification device 1 to be purified. Specifically, the purification apparatus 1 includes a purification tank 2, a filter plate 3, a filter screen 4, an MBR membrane 5, a dosing tank 6, a drug guide pipe 7, an aeration pipe 8, a fan 9, and a stirrer 10, wherein the filter plate 3 is fixedly connected to the purification tank 2 and is located on one side of the purification tank 2. Dosing tank 6 and purification tank 2 fixed connection, and be located purification tank 2 one side, lead pencil 7 and purification tank 2 fixed connection to with dosing tank 6 fixed connection, and be located between dosing tank 6 and the purification tank 2, fan 9 and purification tank 2 fixed connection, and be located dosing tank 6 one side, aeration pipe 8 and fan 9 fixed connection, and with purification tank 2 fixed connection, and be located between purification tank 2 and the fan 9. Mixer 10 and 2 fixed connection in purification tank, and be located 2 bottoms in purification tank, filter screen 4 and 2 fixed connection in purification tank, and be located and purify and keep away from filter 3 one side, MBR membrane 5 and 4 fixed connection in filter screen, and be located filter screen 4 and keep away from filter 3 one side.

In this embodiment, when the waste water that aquatic products were fed is handled, leading into purifying tank 2 with waste water, waste water carries out prefilter through filter 3, clears away great organic matter and large particulate matter in the waste water and filters, stores the medicament through dosing tank 6, leads in the medicament pipe 7 the leading-in purifying tank 2 of medicament in dosing tank 6, disinfects and the flocculation and precipitation to the waste water in purifying tank 2. The material after the sediment passes through filter screen 4 and MBR membrane 5 and filters, and wherein MBR membrane 5 filters wherein micro-molecular material, further strengthens the water purification effect, and fan 9 blows through aeration pipe 8 in toward purification tank 2, takes place aeration reaction and eliminates nitrogen ammonia material, gives waste water oxygenation simultaneously, accomplishes the waste water purification treatment of feeding the production to aquatic products. The stirrer 10 rotates and stirs the wastewater in the purification tank 2 in the above two steps, so as to accelerate the speed of flocculating settling and eliminating nitrogen and ammonia substances and improve the water purification efficiency. The invention has multiple filtration and deep purification. Solves the problems that the existing aquaculture wastewater treatment equipment has single function and the purified water is difficult to reach the standard.

Further, clarification plant 1 still includes clean water basin 11, water quality monitor 12, backwash pump 13, drain 14, connector 15, pneumatic cylinder 16, accumulator box 17, solar energy electroplax 18, switch board 19, canopy 20 and circulating water pump 21, and clean water basin 11 and 2 fixed connection in clean water basin are located 2 one sides in the clean water basin, and water quality monitor 12 and 11 fixed connection in clean water basin are located 11 one sides in the clean water basin, and circulating water pump 21 and 11 fixed connection in clean water basin, and are located 11 one sides in the clean water basin. The stirring machine 10 comprises a stirring motor 101 and a rotating blade 102, the stirring motor 101 is fixedly connected with the purification tank 2 and is positioned at the bottom of the purification tank 2, the rotating blade 102 is fixedly connected with the stirring motor 101 and is positioned in the purification tank 2, a sewage discharge outlet 14 is fixedly connected with the purification tank 2 and is positioned at the bottom of the purification tank 2, and a backwashing pump 13 is fixedly connected with the clean water tank 11 and is positioned on one side of the clean water tank 11. Pneumatic cylinder 16 and purification battery 2 fixed connection, and be located purification battery 2 top, connector 15 is connected with pneumatic cylinder 16 dismantlement, and with filter 3 fixed connection, and be located between pneumatic cylinder 16 and the filter 3, accumulator box 17 and purification battery 2 fixed connection, and be located purification battery 2 one side, solar energy electroplax 18 is connected with accumulator box 17 electricity, and is located the accumulator box 17 top, switch board 19 and purification battery 2 fixed connection, and be located accumulator box 17 one side, canopy 20 and switch board 19 fixed connection, and be located switch board 19 top. The control cabinet 19 includes a housing 191 and a controller 192, the housing 191 is fixedly connected to the purification battery 2 and is located on the side of the electric storage box 17, and the controller 192 is fixedly connected to the housing 191, is electrically connected to the electric storage box 17, and is located in the housing 191.

In this embodiment, through the operation of switch board 19 controlgear, shell 191 protects controller 192 therein, umbrella cover 20 keeps off the rain for switch board 19, prevent that the rainwater from getting into and damaging controller 192, agitator motor 101 operates and makes rotor blade 102 rotate, stir the waste water in purification tank 2, accelerate reaction rate, the water after purification treatment of purification tank 2 is deposited to clean water basin 11, detect turbidity and the nitrogen ammonia substance content of water in clean water basin 11 through the water quality testing appearance, judge whether up to standard. The signal is fed back to the control cabinet 19 when the water quality is not up to the standard, the circulating water pump 21 is controlled by the control cabinet 19 to lead the water in the clean water tank 11 back to the purifying tank 2, and secondary purification is carried out until the water quality detector detects the water quality to be qualified. After using a period of time, lead back the water in the clean water basin 11 through backwash pump 13, wash filtrations and MBR membrane 5 in the purifying tank 2, prevent that impurity from depending on filter screen 4 and MBR membrane 5, influencing the water purification effect of clarification plant 1.

In the embodiment of the purified tail water treatment device for aquaculture, the purification equipment 1 comprises a purification tank 2, a filter plate 3, a filter screen 4, an MBR membrane 5, a dosing tank 6, a drug guide pipe 7, an aeration pipe 8, a fan 9, a stirrer 10, a clean water tank 11, a water quality monitor 12, a backwashing pump 13, a sewage outlet 14, a connector 15, a hydraulic cylinder 16, an accumulator box 17, a solar panel 18, a control cabinet 19, an umbrella cover 20 and a circulating water pump 21. The blender 10 includes a blending motor 101 and a rotating blade 102, and the control cabinet 19 includes a housing 191 and a controller 192. Through 19 controlgear's of switch board operation, shell 191 is protected controller 192 wherein, and umbrella cover 20 keeps off the rain for 19 of switch board, prevents that the rainwater from getting into to damage controller 192, and agitator motor 101 operates and makes rotor blade rotate, stirs the waste water in the purification tank 2 for reaction rate, and the battery provides the electric energy to the electrical component of clarification plant 1, and solar energy electroplax 18 converts solar energy into electric energy resources are saved. When handling the waste water that aquatic products were fed, in leading-in purifying tank 2 with waste water, waste water carries out prefilter through filter 3, clears away great organic matter and large granule material in the waste water and filters, stores the medicament through dosing tank 6, leads in medicine pipe 7 the leading-in purifying tank 2 of medicament in the dosing tank 6, to waste water disinfection and flocculation and precipitation in the purifying tank 2, and the material after the sediment passes through filter screen 4 and MBR membrane 5 and filters. Wherein MBR membrane 5 filters wherein micro-molecule material, further strengthens the water purification effect, and fan 9 blows in toward purification tank 2 through aeration pipe 8, takes place aeration reaction and eliminates the nitrogen ammonia material, gives waste water oxygenation simultaneously, accomplishes the purification treatment to the waste water that aquatic products were fed the production, and waste water in stirring purification tank 2 is rotated to mixer 10 in above-mentioned two steps for the speed of flocculation and precipitation and elimination nitrogen ammonia material improves water purification efficiency. The leading-in clean water basin 11 of water after the purification, clean water basin 11 deposits the water after 2 purification treatment of purification tank, detect turbidity and the nitrogen ammonia material content of water in the clean water basin 11 through the water quality testing appearance, judge whether up to standard, not up to standard give the switch board 19 with signal feedback, lead back to purification tank 2 through switch board 19 control circulating water pump 21 with the water in the clean water basin 11, carry out secondary purification until the water quality testing appearance detects qualifiedly, use a period of time after, lead back the water in the clean water basin 11 through backwash pump 13. The filter and the MBR membrane 5 in the cleaning and purifying tank 2 are cleaned, so that impurities are prevented from attaching to the filter screen 4 and the MBR membrane 5, and the water purifying effect of the purifying equipment 1 is prevented from being influenced. Solves the problems that the existing aquaculture wastewater treatment equipment has single function and the purified water is difficult to reach the standard.

On the other hand, in order to improve the convenience and effectiveness of aquaculture wastewater treatment, the water absorption culture device a100 in the embodiment is distinctive and comprises a culture pond a2, a suction pipeline a3, a water inlet pipeline a4, a sedimentation device a5 and a water absorption device a 6. The suction pipeline a3 is fixedly connected with the culture pond a2 and is positioned at one side of the culture pond a2, and the water inlet pipeline a4 is fixedly connected with the culture pond a2 and is positioned at one side of the culture pond a2 far away from the suction pipeline a 3. The settling device a5 comprises a settling plate a51 and a sewage inlet funnel a52, wherein the settling plate a51 is fixedly connected with the culture pond a2 and is positioned on one side of the culture pond a2 close to the suction pipeline a3, and the sewage inlet funnel a52 is fixedly connected with the settling plate a51 and is positioned on one side of the settling plate a51 close to the culture pond a 2.

The water absorption device a6 comprises a water absorption pipe a61 and a water absorption driving assembly a62, wherein the water absorption pipe a61 is fixedly connected with the absorption pipeline a3 and is positioned on one side of the absorption pipeline a3 close to the culture pond a2, and the water absorption driving assembly a62 is fixedly connected with the culture pond a 2.

In the embodiment, the culture pond a2 is a pond for culturing aquatic products, and the aquatic products are placed in the culture pond a2 for culture; the settling plate a51 is above the bottom of the breeding pond a2 and is provided with a plurality of open plates, the sewage inlet funnel a52 is installed on the opening of the settling plate a51, the upper part of the opening of the sewage inlet funnel a52 is large and small, waste water containing waste generated in the breeding process of the breeding pond a2 is leaked, the bottom of the water suction pipe a61 is connected to the breeding pond a2, so that the waste water reaches the bottom of the breeding pond a2 through the settling plate a51, the lower part of the opening of the sewage inlet funnel a52 is large, the waste in the waste water is not easy to be scattered and raised due to water flow stirring, the waste water is settled and is fixed at the bottom of the breeding pond a 2. The water suction pipe a61 is a pipeline with water suction holes, the water suction pipe a61 is installed at the bottom of the culture pond a2, the bottom of the culture pond a2 is a convex structure with a middle convex part and four sides descending, so that the height difference is formed between the four bottom sides and the middle part, the wastes descending from the sedimentation plate a51 are sedimentated and gathered around the culture pond a2, the water suction pipe a61 is arranged at the four bottom sides, the waste water gathered at the bottom of the culture pond a2 is sucked and conveyed through the water suction holes of the water suction pipe a61 by the driving of the water suction driving component a62, the bottom of the culture pond a2 is provided with an opening, the suction pipe a3 is connected with the suction pipe through the opening, the waste water in the water suction pipe a61 is conveyed to an external water purifier a53 through the suction pipe a3, the water purifier a53 can be other specific purifying equipment 1, the water purifier is adaptively selected or specially designed according to the situation, and is connected with the opening at the upper part of the culture pond a2 through the water inlet pipeline a4 after purification, the purified water is delivered into the culture pond a2 to realize the function of recycling the wastewater, and it should be noted here that the return delivery of the purified wastewater may also be other pipelines, for example, a corresponding return pipeline of the purifying apparatus 1 itself directly returns to the culture pond a2, which is not illustrated here. Due to the design, the waste water produced by the aquaculture in the aquaculture pond a2 leaks to the bottom through the sewage inlet funnel a52 on the sedimentation plate a51 and is gathered in the space below the sedimentation plate a51, the waste water is not easy to return to the upper part of the aquaculture pond a2 through the sewage inlet funnel a52, the waste water is conveyed to the external water purifier a53 through the suction pipeline a3 connected with the water suction pipe a61, the waste water is conveyed to the upper part of the aquaculture pond a2 through the water inlet pipeline a4, the water fluidity of the water is enhanced, the water on the upper part of the aquaculture pond a2 leaks to the lower part of the aquaculture pond a2 through the sewage inlet funnel a52, and waste is left, so that the purified tail water treatment device a100 for aquaculture is more completely absorbed, and the waste water suction effect is improved.

Further, referring to fig. 8, the water suction driving assembly a62 includes a water suction pump a621 and a pump mounting seat a622, and the pump mounting seat a622 is fixedly connected to the culture pond a2 and is located on a side of the culture pond a2 away from the suction pipeline a 3. The water suction pump a621 is fixedly connected with the pump mounting seat a622, is positioned on one side of the pump mounting seat a622 close to the culture pond a2, and is connected with the suction pipeline a 3. In this embodiment, the suction pump a621 is installed on the pump installation seat a622 through bolts, the pump installation seat a622 is installed on the outer wall of the culture pond a2 through bolts, and the suction pump a621 can pump the waste water capacity in the suction pipeline a3 and provide power for the suction pipe a61 connected with the suction pipeline a3 to pump waste water. In addition, referring to fig. 7, the breeding pond a2 has a sewage collecting tank a21, the sewage collecting tank a21 is located at the bottom of the breeding pond a2, and a water suction pipe a61 is cooperatively placed, and a water suction pipe a61 is located at the bottom of the sewage collecting tank a21, so that most of wastewater can be pertinently sucked, and the wastewater sucking effect of the purified tail water treatment device a100 for aquaculture is improved. In this embodiment, the cultivation pond a2 has four sewage collection grooves a21 on four sides, the sewage collection groove a21 collects and holds the waste settled by the slope of the bottom surface of the cultivation pond a2, and the sewage collection groove a21 is provided with a water suction pipe a 61.

Further, referring to fig. 7, the water absorption device a6 further includes a filter screen a63, and the filter screen a63 is fixedly connected to the water absorption pipe a61 and is located at a side of the water absorption pipe a61 close to the culture pond a 2. In this embodiment, the filter screen a63 is a screen surface with tiny gaps, and is fixed at the water suction hole of the water suction pipe a61 by welding, so that small aquatic products can be prevented from being sucked, and large sand can be prevented from entering the water suction pipe a61, which causes the inside of the water suction pipe a61 to be blocked, and the effect of sucking waste water is poor.

As a specific implementation detail, referring to fig. 10, the water absorption device a6 further includes a switch valve a65, and the switch valve a65 is fixedly connected to the absorption pipe a3 and is located on a side of the absorption pipe a3 close to the water absorption pipe a 61. In the present embodiment, the on-off valve a65 is a member capable of opening or closing the inner space of the suction line a3, is installed inside the suction line a3, and closes the suction line a3 when it is no longer necessary to extract waste water, so that the purified tail water treatment apparatus a100 for aquaculture has a line with an on-off valve.

Referring to fig. 8, the settling device a5 further includes a water purifier a53, the water purifier a53 is fixedly connected to the water inlet pipe a4, and is fixedly connected to the suction pipe a3, and is located at a side of the water inlet pipe a4 close to the culture pond a 2. The water purifier a53 is a device with the function of purifying waste water, can purify waste water conveyed by the suction pipeline a3 and convey the waste water to the water inlet pipeline a4, and the water purifier a53 is provided with the water absorption device a6 so that the waste water in the culture pond a2 can be utilized, thereby improving the environmental protection performance of the system. Referring to fig. 8, the aquaculture tail water purification treatment apparatus a100 further includes an aerator a7, and the aerator a7 is fixedly connected to the water inlet pipe a4 and is located at a side of the water inlet pipe a4 close to the aquaculture pond a 2. The oxygen increasing machine a7 is equipment for generating oxygen and is arranged on the outer side wall of the culture pond a2, the oxygen increasing machine a7 generates oxygen and transmits the oxygen to the interior of the culture pond a2 through the water inlet pipeline a4, and the oxygen content of the culture pond a2 is improved, so that aquatic products have a water-oxygen content environment suitable for growth.

Finally, referring to fig. 10, the aquaculture tail water purification treatment device a100 further includes a waterproof layer a8, wherein the waterproof layer a8 is fixedly connected with the suction pipeline a3 and is sleeved outside the suction pipeline a 3. So design, the waste water that waterproof layer a8 can completely cut off in the absorption pipeline a3 outwards reveals, prevents that waste water from revealing the pollution that causes the external environment.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.