CN117566939A - A fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system - Google Patents

Abstract

The invention relates to the technical field of tail water treatment, in particular to a fishery photovoltaic complementary cultivation tail water ecological purification ditch system, which comprises an adjusting tank, a pretreatment part, an oxygen consumption reaction part, a transition reaction part and an oxygenation reaction tank which are sequentially arranged according to the water flow direction; wherein, the regulating reservoir is used for balancing water flow and water quality; the pretreatment part comprises a mud storage area, an auxiliary area and a collection area, and is used for respectively carrying out strengthening treatment and collection on suspended matters and floaters in tail water; the oxygen consumption reaction part comprises a planting area, a water sealing area and a filtering area, the transition reaction part comprises a denitrification area and a plant planting area, and is used for creating an anaerobic environment and an anoxic environment, and an aerobic environment created by oxygenation is realized by combining an oxygenation reaction tank, so that a stable microorganism denitrification and dephosphorization system for the ladies is formed. The invention utilizes the cooperation of a plurality of areas to treat and purify the cultivation tail water step by step, reduces the influence of the cultivation tail water on the ecological environment of the water body, and has the advantages of high efficiency, stability, high resource utilization rate, ecological friendliness, easiness in management and the like.

Description

Fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water

Technical Field

The application relates to the technical field of tail water treatment, in particular to a fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water.

Background

In the aquaculture process, a large number of operations such as feeding, fertilization and the like can cause eutrophication of the aquaculture tail water and contain a large number of pollutants such as suspended matters, organic matters, ammonia nitrogen and the like, and if the pollutants are directly discharged without treatment, serious pollution can be caused to the water body. Therefore, ecological purification treatment of the aquaculture tail water is an important problem facing current fishery aquaculture.

The existing treatment for the culture tail water mainly comprises traditional physical treatment, chemical treatment, biological treatment and other methods, but the methods have the defects of incomplete treatment effect, medicament residue, secondary pollution, higher energy consumption, difficulty in realizing comprehensive utilization of resources and the like.

Therefore, the prior art has defects and needs to be solved.

Disclosure of Invention

The invention provides a fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water, which can efficiently remove suspended matters, floaters, pollutants such as nutrient salts such as nitrogen and phosphorus, heavy metal ions, organic pollutants and the like in the aquaculture tail water, effectively improve the quality of the aquaculture tail water and reduce the influence of the aquaculture tail water on the ecological environment of water.

The invention provides a fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water, which comprises an adjusting tank, a pretreatment part, an oxygen consumption reaction part, a transition reaction part and an oxygenation reaction tank which are sequentially arranged;

the adjusting tank is used for adjusting balance water flow and water quality of the culture tail water, and the top and the bottom of the adjusting tank are respectively provided with a water inlet pipe and a first connecting pipe;

the pretreatment part comprises a first mud storage area, an auxiliary area and a collection area which are sequentially arranged from bottom to top; the top of the first mud storage area is communicated with the regulating tank through the first connecting pipe, and a plurality of steps of sediment collecting devices are arranged on the bottom of the first mud storage area; the auxiliary area comprises a plurality of auxiliary units which are uniformly distributed along the horizontal direction, and each auxiliary unit comprises a plurality of auxiliary plates which have different angles and are selectively adjacent to each other; the collecting area comprises a plurality of collecting units and second mud storage units which are arranged at intervals one by one, two ends of each collecting unit are provided with openings, the top of each collecting unit is provided with a drain hole and communicated with the adjacent second mud storage units through the drain holes, and the bottom of each collecting unit is connected with the auxiliary plate at the top end of the auxiliary unit;

the oxygen consumption reaction part comprises a first planting area, a water seal area and a filtering area which are sequentially arranged from top to bottom, wherein a first accommodating space and a second accommodating space are respectively arranged at two ends of the water seal area, the first planting area and the filtering area; emergent aquatic plants are planted in the first planting area, and a porous second connecting pipe is arranged in the first planting area, and the water inlet end of the second connecting pipe is communicated with the top of the pretreatment part; the water seal area comprises a porous fixed plate fixedly arranged in the tank body, a sponge arranged on the fixed plate and a porous movable plate arranged at the top of the sponge and slidably arranged in the first accommodating space; gravel is filled in the filtering area, and a third connecting pipe is arranged at the bottom of the filtering area;

the transition reaction part comprises a denitrification area and a second plant planting area which are sequentially arranged from bottom to top; the denitrification area is filled with immobilized bacteria and algae filler, and the bottom of the denitrification area is communicated with the filtering area through the third connecting pipe; emergent aquatic plants and/or floating plants are planted in the second plant planting area;

the top of oxygenation reaction tank is provided with the fourth connecting pipe and through its with the district intercommunication is planted to the second plant, oxygenation reaction tank's bottom is provided with mechanical aeration device and outlet pipe, mechanical aeration device and photovoltaic power generation equipment electric connection, the water outlet end of outlet pipe extends to oxygenation reaction tank is outside.

Further, still include a plurality of overflow pipe, the overflow pipe is fixed in on the fixed plate, the overflow pipe runs through the water seal district, and its water inlet end and play water end extend respectively to first accommodation space with in the second accommodation space.

Further, the device also comprises a nutrition area, wherein the nutrition area comprises a first nutrition area, a second nutrition area and a third nutrition area which are arranged below the oxygen consumption reaction part, the transition reaction part and the oxygenation reaction tank in a one-to-one correspondence manner and are communicated with pipelines of the first nutrition area, the second nutrition area and the third nutrition area respectively;

the first nutrition area is communicated with the bottom of the filtering area, the second nutrition area is communicated with the second planting area, and the third nutrition area is communicated with the bottom of the oxygenation reaction tank.

Further, the device also comprises a mud discharging pipe and a control valve thereof, wherein an inlet of the mud discharging pipe is communicated with the bottom of each second mud storage unit.

Further, each step in the sediment collecting device is provided with a first plane and a second plane, wherein the first plane is vertically arranged, and the second plane is connected with the first plane and is arranged at an angle of 120-160 degrees with the horizontal plane.

Further, the auxiliary unit comprises a first auxiliary plate, a second auxiliary plate and a third auxiliary plate which are sequentially arranged from bottom to top; the second auxiliary plate is connected with the first auxiliary plate, and the third auxiliary plate and the second auxiliary plate are arranged in a staggered mode.

Further, the first auxiliary plate is arranged at an angle of 30-60 degrees with the horizontal plane, and the third auxiliary plate is arranged at an angle of 120-160 degrees with the horizontal plane.

Further, the device also comprises an indicating device which is arranged in each collecting unit and floats up and down along with the change of the height of the water level in the collecting unit.

Further, the height of the top of the collecting unit is 3 cm-5 cm greater than the height of the top of the second mud storage unit.

Further, the gravel particle size filled in the filtering area is 0.5 cm-1 cm.

The beneficial effects are that:

according to the technical scheme, the ecological purification ditch system for the aquaculture tail water with complementary photovoltaics is provided, and the aquaculture tail water is treated and purified step by step in a coordinated manner through different arrangement and combination of a plurality of treatment units such as an oxygen consumption reaction part, a transition reaction part, an oxygenation reaction tank and the like and the internal structures of the treatment units, so that suspended matters, floaters, pollutants such as nutrient salts such as nitrogen and phosphorus, heavy metal ions and organic pollutants and the like in the aquaculture tail water can be removed efficiently, the water quality of the aquaculture tail water is effectively improved, the influence of the aquaculture tail water on the ecological environment of the water is reduced, and the cyclic utilization is realized by combining the characteristics of each stage of the aquaculture tail water, and the ecological purification ditch system has the advantages of high efficiency, stability, high resource utilization rate, ecological friendliness, easiness in management and the like.

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of the cooperation relationship among the pretreatment portion, the oxygen consumption reaction portion, and the transition reaction portion provided in the embodiment of the present application.

Fig. 3 is a schematic diagram of the overall structure of a fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water according to another embodiment of the present application.

Fig. 4 is a schematic structural diagram of an oxygenation reaction tank according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of an auxiliary unit according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a water seal area according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a cooperation relationship between a fixing plate and an overflow pipe according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of a cooperation relationship between a collecting unit and a second mud storage unit according to an embodiment of the present application.

In the drawings, the meanings of the reference numerals are as follows:

the regulating tank 1, the water inlet pipe 110 and the first connecting pipe 120;

a pretreatment unit 2, a first sludge storage area 210, a sediment collection device 211, an auxiliary area 220, a first auxiliary plate 221, a second auxiliary plate 222, a third auxiliary plate 223, an auxiliary unit 224, a collection area 230, a collection unit 231, a second sludge storage unit 232, a drain hole 233, a sludge drain pipe 234, and an indication device 235;

the oxygen consuming reaction part 3, the first planting area 310, the water sealing area 320, the fixed plate 321, the sponge 322, the moving plate 323, the overflow pipe 324, the filtering area 330, the second connecting pipe 340, the first accommodating space 350, the second accommodating space 360, and the third connecting pipe 370;

a transition reaction part 4, a denitrification region 410, and a second plant growing region 420;

the oxygenation reaction tank 5, a fourth connecting pipe 510, a mechanical aeration device 520 and a water outlet pipe 530;

nutritional zone 6, first nutritional zone 610, second nutritional zone 620, third nutritional zone 630.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The embodiment of the invention provides a fishery photovoltaic complementary ecological purification ditch system for tail water of cultivation, which has the characteristics of high efficiency, stability, high resource utilization rate, ecology friendliness, easiness in management and the like, and effectively solves the problems of low tail water treatment efficiency and insignificant water quality improvement effect in the traditional aquaculture.

Referring to fig. 1 and 3, a schematic structural diagram of an ecological purification ditch system for tail water of cultivation in an embodiment of the invention is shown, and the system comprises an adjusting tank 1, a pretreatment part 2, an oxygen consumption reaction part 3, a transition reaction part 4 and an oxygenation reaction tank 5 which are sequentially arranged.

Referring to fig. 1, a water inlet pipe 110 for introducing the culture tail water is arranged at the top of the regulating tank 1, the regulating tank 1 is used for regulating the balance water flow and water quality of the culture tail water, reducing the influence of the change of the peak flow or the peak concentration of the tail water on the system, ensuring the operation stability of the subsequent system, and a water inlet pipe 110 is arranged at the bottom of the regulating tank 1 and used for guiding out stable water flow of the culture tail water.

The pretreatment part 2 is mainly used for respectively treating and collecting suspended matters and floating matters in the culture tail water in a targeted manner. Referring to fig. 1 to 3, the pretreatment area includes a first mud storage area 210, an auxiliary area 220, and a collection area 230, which are sequentially disposed from bottom to top; the top of the first mud storage area 210 is communicated with the regulating tank 1 through the water inlet pipe 120, and a plurality of steps of sediment collecting devices 211 are arranged on the bottom of the first mud storage area 210; the auxiliary area 220 includes a plurality of auxiliary units 224 uniformly arranged along the horizontal direction, each auxiliary unit 224 includes a plurality of auxiliary plates having different angles and selectively adjacent to each other; the collecting area 230 comprises a plurality of collecting units 231 and second mud storage units 232 which are arranged at intervals, two ends of each collecting unit 231 are open, a drain hole 233 is formed in the top of each collecting unit 231 and is communicated with the adjacent second mud storage unit 232 through the drain hole, and the bottom of each collecting unit 231 is connected with the auxiliary plate at the top end of each auxiliary unit 224.

Firstly, the culture tail water in the regulating tank 1 is discharged into the pretreatment part 2 through the water inlet pipe 120, and with reference to fig. 1 to 3, under the guiding action of the sediment collecting device 211 with multi-stage steps, part of suspended matters in the tail water are gradually deposited at the bottom of the tank body, and part of suspended solid matters in the tail water are effectively removed. Referring to fig. 1 to 3, in the present embodiment, each step in the sediment collection assembly 211 has a first plane and a second plane. The first plane can be vertically arranged, the second plane can be connected with the first plane and is arranged at an angle of 120-160 degrees with the horizontal plane, and the first plane and the second plane cooperatively improve the sedimentation speed of suspended matters.

Referring to fig. 2, in the vertical direction, the first mud storage area 210 and the auxiliary area 220 are approximately divided by the water inlet pipe 120, and in particular, in the case of high water outlet speed of the culture tail water flowing through the water inlet pipe 120, part of suspended matters directly impact the auxiliary area 220 along with the water flow, so that a plurality of auxiliary units 224 are arranged in the auxiliary area to delay the water flow, and the suspended matters in the auxiliary area are prevented from floating and being difficult to deposit due to the impact force of the water flow.

In some embodiments of the present invention, referring to fig. 1 and 5, the auxiliary unit 224 includes a first auxiliary plate 221, a second auxiliary plate 222, and a third auxiliary plate 223 sequentially disposed from bottom to top, where the second auxiliary plate 222 is connected to the first auxiliary plate 221, and the third auxiliary plate 223 and the second auxiliary plate 222 are arranged in a staggered manner, and the three auxiliary plates cooperate to further enhance separation of suspended matters and floating matters in the culture tail water. Referring to fig. 5, the first auxiliary plate 221 may be disposed at an angle of 30 ° to 60 ° with respect to the horizontal plane, and is used for accelerating the suspended matters in the culture tail water to be deposited and fall into the first mud storage area 210; the second auxiliary plate 222 may be vertically disposed for guiding the primarily precipitated tail water into the collecting area 230; the third auxiliary plate 223 may be disposed at an angle of 120 ° to 160 ° with respect to the horizontal plane, and is used for guiding the floating objects in the cultivation tail water to accelerate into the collecting unit 231 connected thereto.

It will be appreciated that the specific number and angle of arrangement of the auxiliary plates constituting the auxiliary unit 224 may be adapted accordingly to the actual conditions of the aquaculture tail, in particular the ratio of suspended matter to floating matter. For example, the auxiliary unit 224 may be composed of the first auxiliary plate 221 and the third auxiliary plate 223, may be composed of only the third auxiliary plate 223, and the like.

Referring to fig. 2, under the separation action of the auxiliary area 220, the floats in the culture tail water enter the collection area 230 along with the water flow. Specifically, the floating objects enter the collecting unit 231 connected with the third auxiliary plate 223, and as the thickness of the floating objects continuously increases along with the continuous accumulation of the floating objects in the collecting unit 231, the floating objects are finally discharged through the drain holes 233 at the top of the collecting unit 231 and fall into the second mud storage area, and then the second mud storage area is cleaned periodically. Referring to fig. 1 and 8, the collecting unit 231 may be in the shape of a hollow cylinder having an open top, which is equally spaced in the water inflow direction.

In some embodiments of the present invention, an indicating device 235 is further disposed in the collecting unit 231, and the indicating device 235 can float up and down along with the height of the water level in the collecting unit 231, so as to perform an indicating or warning function. Referring to fig. 2, with the continuous accumulation of the floating matters falling into the second sludge storage area, if not treated periodically, the accumulation height of the floating matters gradually reaches the position of the drain hole 233 and is buried, so that the floating matters in the collecting unit 231 cannot be discharged through the drain hole 233, but continue to accumulate in the collecting unit 231. At the same time, the indicator 235, which is originally floating on the water surface in the collection unit 231, is gradually raised as the float is accumulated. The indication means 235 may be a combination of a float and an indication flag, which when exposed to the top of the collection unit 231 indicates that the second mud storage area is full and must be immediately cleaned. The indication device 235 may be a floating block with a coating warning color, and the top of the floating block is exposed out of the collecting unit 231 to achieve the effect of cleaning indication.

The suspended matters and floating matters are removed by the pretreatment part 2 and the oxygen consumption reaction part 3 of the culture tail water. The oxygen consumption reaction part 3 comprises a first planting area 310, a water seal area 320 and a filtering area 330 which are sequentially arranged from top to bottom, wherein a first accommodating space 350 and a second accommodating space 360 are respectively arranged between two ends of the water seal area 320 and the first planting area 310 and the filtering area 330; a second porous connecting pipe 340 is arranged in the first planting area 310, and the water inlet end of the second connecting pipe 340 is communicated with the top of the pretreatment part 2; the water seal area 320 includes a porous fixing plate 321 fixedly disposed in the tank body, a sponge 322 disposed on the fixing plate 321, and a porous moving plate 323 disposed on the top of the sponge 322 and slidably disposed in the first accommodating space 350; the filtering section 330 is filled with gravel, and a third connection pipe 370 is provided at the bottom thereof.

According to the above structure, the cultivation tail water discharged from the second connection pipe 340 first enters the second connection pipe 340 arranged in the first plant planting area, the emergent aquatic plants are planted in the first plant planting area by adopting the ceramsite, and the second connection pipe 340 is porous to irrigate the plants. In addition, plants can absorb nutrients in the tail water in addition to being used as a landscaping environment.

The culture tail water then falls onto the porous moving plate 323 at the top of the water seal area 320 and is immediately absorbed by the sponge 322 below. In this embodiment, referring to fig. 2 and 7, a plurality of overflow pipes 324 are further uniformly disposed in the water seal area 320, the overflow pipes 324 are fixed on the fixing plate 321, the overflow pipes 324 penetrate through the water seal area 320, and the water inlet end and the water outlet end thereof extend into the first accommodating space 350 and the second accommodating space 360, respectively. In combination with the arrangement of the overflow pipe 324, the absorption process of the sponge 322 can be roughly divided into the following three cases according to the water amount:

when the water enters the oxygen consumption reaction part 3 with the normal water amount, the sponge 322 begins to release excessive water after being swelled to the maximum capacity, and then falls into the second accommodating space 360 through the holes on the fixing plate 321 at the bottom of the sponge, and then falls into the filtering area 330 for filtering and purifying by the gravel filled therein.

When the water quantity entering the oxygen consumption reaction part 3 increases, the infiltration speed of the tail water in the water seal area 320 is lower, the tail water starts to accumulate in the first accommodating space 350, and as the accumulated water level is continuous, the pressure of the accumulated tail water on the movable plate 323 in the same space is also higher, and then the sponge 322 is extruded to accelerate the discharge of the excessive water, and the water level in the first accommodating space 350 is reduced; when the sponge 322 is pressed to a certain extent, the pressure of the tail water accumulated in the first accommodating space 350 on the moving plate 323 is insufficient, and the sponge 322 starts to absorb water again, so that new balance is continuously formed.

When the water level in the first receiving space 350 increases rapidly due to the rapid increase of the second connecting pipe 340, the sponge 322 is not recovered from the water absorption, and the excessive rainwater directly enters the second receiving space 360 through the overflow pipe 324.

Finally, the cultivation tail water purified by the oxygen consumption reaction part 3 enters the bottom of the transition reaction zone through the third connecting pipe 370 at the bottom of the cultivation tail water. Referring to fig. 1 to 3, the transition reaction part 4 includes a denitrification region 410 and a second plant growing region 420 sequentially disposed from bottom to top, and the bottom of the denitrification region 410 is communicated with the filtering region 330 through the third connection pipe 370. Wherein emergent aquatic plants and/or floating plants are planted in the second plant planting area 420, and immobilized bacteria and algae fillers are filled in the denitrification area 410, and can fix and protect microorganisms and algae, so that the microorganisms and algae grow and propagate in a proper environment, and nitrogen compounds such as ammonia nitrogen, nitrate and the like in tail water can be converted into nitrogen gas or other nitrogen gas. Is used for removing nutrient substances such as nitrogen, phosphorus and the like in water, reducing the nutrient salt content in the water body and reducing the eutrophication degree of the water body. Meanwhile, due to the isolation effect of the second planting area, the oxygen content in the denitrification area 410 is lower, so that the denitrification reaction is more facilitated, and the nitrogen removal effect is further improved.

Referring to fig. 1 and 4, a fourth connection pipe 510 is disposed at the top of the oxygenation reaction tank 5 and is connected to the second plant growing area 420 through the fourth connection pipe, a mechanical aeration device 520 and a water outlet pipe 530 are disposed at the bottom of the oxygenation reaction tank 5, and the water outlet end of the water outlet pipe 530 extends to the outside of the oxygenation reaction tank 5.

Wherein, the mechanical aeration device 520 can be electrically connected with the photovoltaic power generation equipment to fully utilize renewable energy sources. The mechanical aeration device 520 forcedly dissolves oxygen in the air into the tail water through aeration, and promotes the growth of aerobic microorganisms by creating a sufficient oxygen environment, and the aerobic microorganisms can decompose pollutants such as organic matters, ammonia nitrogen, nitrite and the like, thereby purifying water quality.

In some embodiments of the present invention, the system further comprises a nutrition area 6, wherein the nutrition area 6 comprises a first nutrition area 610, a second nutrition area 620 and a third nutrition area 630 which are arranged below the oxygen consumption reaction part 3, the transition reaction part 4 and the oxygenation reaction tank 5 in a one-to-one correspondence manner and are respectively communicated with pipelines of the first nutrition area, the second nutrition area 620 and the third nutrition area 630; wherein the first nutrition area 610 is communicated with the bottom of the filtering area 330, the second nutrition area 620 is communicated with the second planting area, and the third nutrition area 630 is communicated with the bottom of the oxygenation reaction tank 5. The purifying effect of the connected processing units can be known that the first nutrition area 610 contains more nitrogen and phosphorus nutrition elements, the second nutrition area 620 contains more phosphorus nutrition elements, and the third nutrition area 630 contains less nitrogen and phosphorus nutrition elements, so that water in the nutrition areas is extracted and reused, such as vegetable irrigation, and the like, and water in different levels of nutrition areas can be selected and used according to different requirements.

In some embodiments of the present invention, referring to fig. 2, the system further comprises a sludge discharge pipe 234 and a control valve thereof, wherein an inlet of the sludge discharge pipe 234 is communicated with the bottom of each of the second sludge storage units 232, so as to facilitate periodic cleaning of the floating objects in the second sludge storage area.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above describes in detail a fishery photovoltaic complementary ecological purification ditch system for aquaculture tail water provided by the embodiment of the present application, and specific examples are applied to describe the principle and implementation of the present application, and the description of the above embodiments is only used to help understand the technical scheme and core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system, which is characterized by: including a regulating tank, a pretreatment section, an oxygen consumption reaction section, a transition reaction section and an oxygenation reaction tank arranged in sequence; The regulating tank is used to adjust the balanced water flow and water quality of the breeding tail water. The top and bottom of the regulating tank are respectively provided with a water inlet pipe and a first connecting pipe; The pretreatment section includes a first mud storage area, an auxiliary area and a collection area arranged in sequence from bottom to top; the top of the first mud storage area is connected to the regulating tank through the first connecting pipe, and the A number of stepped sediment collection devices are provided at the bottom of the first mud storage area; the auxiliary area includes several auxiliary units evenly arranged in the horizontal direction, and each auxiliary unit includes several auxiliary units with different angles between each other. A selectively adjacent auxiliary plate; the collection area includes a plurality of collection units and a second mud storage unit arranged at intervals, the collection unit is open at both ends, and the top of the collection unit is provided with a drainage hole through which it communicates with The adjacent second mud storage units are connected, and the bottom of the collection unit is connected with the auxiliary plate on the top of the auxiliary unit; The oxygen consumption reaction part includes a first planting area, a water sealing area and a filtering area arranged in sequence from top to bottom, wherein the two ends of the water sealing area are respectively arranged with the first planting area and the filtering area. There is a first accommodation space and a second accommodation space; emergent plants are planted in the first planting area and a porous second connecting pipe is arranged, and the water inlet end of the second connecting pipe is connected with the pretreatment part. The top is connected; the water seal area includes a porous fixed plate fixedly installed in the pool body, a sponge installed on the fixed plate, and a sponge installed on the top and slidably installed in the first accommodation space. A porous moving plate; the filter area is filled with gravel, and a third connecting pipe is provided at the bottom; The transition reaction part includes a denitrification area and a second plant planting area arranged sequentially from bottom to top; the denitrification area is filled with immobilized bacteria and algae filler, and its bottom is connected to the denitrification area through the third connecting pipe. The filter areas are connected; emergent plants and/or floating plants are planted in the second plant planting area; The top of the oxygenation reaction tank is provided with a fourth connecting pipe and is connected to the second plant planting area through it. The bottom of the oxygenation reaction tank is provided with a mechanical aeration device and a water outlet pipe. The mechanical aeration The device is electrically connected to the photovoltaic power generation equipment, and the water outlet end of the water outlet pipe extends to the outside of the oxygenation reaction tank. 2. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 1, characterized in that it also includes a plurality of overflow pipes, the overflow pipes are fixed on the fixed plate, and the overflow pipes are fixed on the fixed plate. The pipe penetrates the water sealing area, and its water inlet end and water outlet end extend into the first accommodation space and the second accommodation space respectively. 3. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 1, characterized in that it also includes a nutrient area, and the nutrient area includes a one-to-one arrangement of the oxygen consumption reaction part and the transition reaction part. and the first nutrient zone, the second nutrient zone and the third nutrient zone below the oxygenation reaction tank and connected with their respective pipelines; Wherein, the first nutrient area is connected to the bottom of the filtering area, the second nutrient area is connected to the second planting area, and the third nutrient area is connected to the bottom of the oxygenation reaction tank. 4. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system as claimed in claim 1, further comprising a mud discharge pipe and its control valve, and the inlet of the mud discharge pipe is connected to each of the second storage tanks. The bottom of the mud unit is connected. 5. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 1, characterized in that each step in the sediment collection device has a first plane and a second plane, wherein, the The first plane is arranged vertically, and the second plane is connected with the first plane and is arranged at an angle of 120° to 160° with the horizontal plane. 6. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 1, characterized in that the auxiliary unit includes a first auxiliary plate, a second auxiliary plate and a third auxiliary plate arranged in sequence from bottom to top. board; wherein, the second auxiliary board is connected to the first auxiliary board, and the third auxiliary board and the second auxiliary board are arranged in a staggered manner. 7. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 6, characterized in that the first auxiliary plate is arranged at an angle of 30° to 60° with the horizontal plane, and the third auxiliary plate is arranged at an angle of 30° to 60° with the horizontal plane. The horizontal plane is set at an angle of 120° to 160°. 8. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system as claimed in claim 1, further comprising an indicating device, which is disposed in each collection unit and changes with the water level in each collection unit. Fluctuate with changes. 9. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 1, characterized in that the height of the top of the collection unit is 3 cm to 5 cm greater than the height of the top of the second mud storage unit. 10. The fishery photovoltaic complementary aquaculture tailwater ecological purification ditch system according to claim 1, characterized in that the particle size of the gravel filled in the filter area is 0.5cm~1cm.