CN108496874B

CN108496874B - Fish and vegetable symbiotic system

Info

Publication number: CN108496874B
Application number: CN201810236259.4A
Authority: CN
Inventors: 张楚雄; 徐海圣; 郭水荣
Original assignee: Hangzhou Weikang Agriculture Development Co ltd
Current assignee: Hangzhou Weikang Agriculture Development Co ltd
Priority date: 2018-03-21
Filing date: 2018-03-21
Publication date: 2020-08-14
Anticipated expiration: 2038-03-21
Also published as: CN108496874A

Abstract

The invention discloses a fish and vegetable symbiotic system, which comprises a culture area, a planting area, a sedimentation tank, a sewage separation area and a treatment and purification area, wherein the culture area is used for culturing fish and vegetable; the culture area is a fishpond, the treatment and purification area comprises a recovery pond and a purification pond, one side of the fishpond is communicated with the purification pond, the other side of the fishpond is communicated with the sedimentation pond, and a driving part for pushing water in the purification pond into the fishpond is arranged between the fishpond and the purification pond; the sedimentation tank and the recovery tank are arranged adjacently, and an overflow wall is arranged between the sedimentation tank and the recovery treatment tank; the sewage separation zone is communicated with the planting zone and the purification tank. According to the invention, a fish and vegetable symbiotic system for water recycling is formed by the design of a culture area, a planting area, a sedimentation tank, a sewage separation area and a treatment and purification area, so that the discharge is reduced, and the reasonable utilization of water resources is facilitated; the design of drive division helps the hydrologic cycle in the drive fish-vegetable intergrowth system, helps strengthening the rational utilization of water resource.

Description

Fish and vegetable symbiotic system

Technical Field

The invention relates to the technical field of ecological breeding, in particular to a fish and vegetable symbiotic system.

Background

The aquaculture of fishery, also called aquaculture, refers to the cultivation of fish or various seafood in fish farms created by artificial on-shore for eating. A large amount of high-concentration sewage containing fish excreta is generated in the process of fishery culture, is directly discharged into a water body or is not suitable for storage places, is washed by rainwater and enters the water body, and the serious deterioration of the quality of surface water or underground water can be possibly caused.

At present, the main treatment methods of the fishery aquaculture water body comprise: water purifying agent treatment, anaerobic treatment and aerobic treatment. But the treatment of the water purifying agent takes long time, and most of the water purifying agent is a secondary pollution source after being used; the anaerobic treatment has the characteristics of small occupied area, low energy requirement and capability of generating methane, but has high treatment cost and complex treatment operation; the basic principle of aerobic treatment is to decompose organic matter by using microorganisms under aerobic conditions, and the method is characterized by moderate operation cost, large floor area, easy generation of stink in the treatment process and the like.

Most of the current farming and fishery culture systems are separately cultivated in agriculture and fishery, the farming systems are provided with irrigation and drainage facilities and fertilization processes, the fishery culture systems adopt an isolated fish pond design, the traditional farming culture needs long-term water supply, fertilization and irrigation, so the consumed water supply amount is considerable, and the traditional fishery culture systems need to regularly inject partial fresh water, discharge waste water with concentrated impurities and the like, so the consumed water supply amount is also remarkable, and the water resource loss is not small.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a fish-vegetable symbiotic system which has the advantage of recycling water resources.

In order to achieve the first purpose, the invention provides the following technical scheme:

a fish-vegetable symbiotic system comprises a culture area, a planting area, a sedimentation tank, a sewage separation area and a treatment and purification area; lotus roots are planted in the planting area; the culture area comprises a plurality of fishponds which are arranged in parallel; the treatment and purification area comprises a recovery tank and a purification tank, wherein aquatic plants are planted in the purification tank; one side of the fishpond is communicated with the purification tank, the other side of the fishpond is communicated with the sedimentation tank, the fishpond and the purification tank are communicated through a water pipe, and a driving part for pushing water in the purification tank into the fishpond is arranged between the fishpond and the purification tank; the sedimentation tank and the recovery tank are arranged adjacently, and an overflow wall is arranged between the sedimentation tank and the recovery treatment tank; a water pump is arranged between the sedimentation tank and the sewage separation zone; the sewage separation zone comprises a water inlet pipe, a sewage separation device, a water outlet pipe and a sewage collecting pipe which are sequentially arranged, the water inlet pipe is connected with a water pump, the sewage collecting pipe is communicated with the planting zone, and the water outlet pipe is communicated with the purification tank.

Through the technical scheme, the driving part pushes water with better water quality in the purification tank into the culture area, so that sewage containing fish excrement generated in the culture area is discharged into the sedimentation tank, and the fish excrement is settled to the bottom of the sedimentation tank after entering the sedimentation tank; in supernatant liquor in the sedimentation tank, the concentration of fish excrement is low, and the fish excrement overflows the overflow wall, flows into the recovery tank and then flows back to the purification tank along with the pipeline. The concentration of the excrement at the bottom of the sedimentation tank is higher, the sewage with higher concentration of the part of excrement is pumped to the sewage separation area by using the water pump, the sewage and the water are separated, the sewage is introduced into the planting area along with the sewage collection pipe to provide nutrients for plants in the planting area, and the separated water is introduced back to the purification tank along with the water outlet pipe. The water in the purifying tank is under the purifying effect of aquatic plant, and quality of water obtains improving, and drive division reworks, pushes away the water in the purifying tank to breeding the district in, so circulation helps reducing the emission of filth, does benefit to the environmental protection, has realized the cyclic utilization of water resource, plays the purpose of environmental protection.

More preferably: the driving part comprises a guide surface arranged in the water through pipe, a Roots blower arranged on one side of the fish pond, a main pipe connected to the Roots blower and an air supply pipe connected with the main pipe, the guide surface is arranged from one end close to the purification pond to one end close to the fish pond in an inclined and upward manner, the air supply pipe extends into the water through pipe, an ink pipe is connected to the air supply pipe, and air outlet of the ink pipe is blown to the guide surface.

Through above-mentioned technical scheme, the roots's fan produces the air current, after being responsible for and the blast pipe, from the ink pipe blowout, ink pipe spun high-pressure draught cooperates with the guiding surface, produces the effect that the gas pushed, pushes away the water in the purifying tank and breeds the district, pushes away the sewage in the district of breeding to the sedimentation tank, makes the process of hydrologic cycle change the operation.

More preferably: the roots blower is provided with two main pipes, the two main pipes are arranged on the same side of the fish pond, the main pipes are laid above the plurality of fish ponds, a ventilation pipe communicated with the two main pipes is arranged between the two main pipes, and the adjacent air supply pipes in the fish pond are connected to different main pipes.

Through above-mentioned technical scheme, two are responsible for and two roots's fan's setting, help strengthening the effect that the gas pushed, utilize the connecting pipe to be responsible for two intercommunication, help reducing the resistance among the air current transportation process, further strengthen the effect that the gas pushed.

More preferably: and valves are arranged on the air supply pipes.

Through above-mentioned technical scheme, the speed that produces the excrement is different in the different ponds, and the time that needs to change the breed water is also different, and when wherein certain pond need clear up the excrement, open the valve that corresponds the pond, is convenient for breed the change of water to different ponds, makes the process of hydrologic cycle more diversified.

More preferably: two stopping parts are arranged in the fish pond, and the fish pond is cultured between the two stopping parts; the blocking part comprises a support, a blocking net fixedly connected with the support and a reinforcing rod fixedly connected with the support, and the support is in contact with the bottom wall of the fish pond.

Through above-mentioned technical scheme, at hydrologic cycle's in-process, the district is bred in pushing in the purification tank, and the in-process that the sewage in the district was bred and pushes the sedimentation tank helps reducing the probability that the fish got into sedimentation tank and purification tank, makes hydrologic cycle's process more stable, does benefit to centralized management.

More preferably: the sewage separation device comprises a plurality of sedimentation pipes which are arranged along the vertical direction, and the sedimentation pipes are communicated through a connecting pipe; the sedimentation tube comprises a first tube body and a second tube body, the second tube body is arranged in an inverted round platform shape, and the second tube body is communicated with the sewage collecting tube.

Through above-mentioned technical scheme, the control water pump is with the velocity of flow and the flow of the control sewage that lets in the sedimentation pipe, with the cooperation of the second body of radius platform form, helps making sewage form the swirl in the sedimentation pipe, and then strengthens the sediment of sewage in the sewage to strengthen the effect of sewage separation.

More preferably: the cross section of the second body bottommost end reduces gradually from the one end that is close to the inlet tube to the one end that is close to the outlet pipe.

Through above-mentioned technical scheme, the concentration of excrement reduces gradually from the one end that is close to the inlet tube to the one end that is close to the outlet pipe in the sewage, cooperatees with the size of second body bottom, helps strengthening the ability that the excrement was collected to the dirty pipe of collection, and then strengthens the effect of sewage separation zone separation sewage to strengthen water cyclic utilization's effect.

More preferably: the bottom surface of the sedimentation tank is in a pot bottom shape.

Through above-mentioned technical scheme, the in-process that pushes away the sedimentation tank at the sewage in breeding the district, cooperatees with the bottom surface of sedimentation tank bottom of a boiler shape, produces the swirl in the sedimentation tank, helps strengthening the sedimentation tank to the sedimentation effect of breeding sewage, helps reducing from the concentration of excrement in the upper clear liquid in overflow wall inflow recovery pond, more does benefit to the recycle of water resource.

More preferably: and a surge machine is also arranged in the sedimentation tank.

Through above-mentioned technical scheme, the bottom surface of surge machine and sedimentation tank bottom of a boiler shape cooperatees, more does benefit to the formation of swirl in the sedimentation tank, has further strengthened the precipitation of sedimentation tank to the sedimentation of breeding sewage.

In conclusion, the invention has the following beneficial effects:

1. the design of the culture area, the planting area, the sedimentation tank, the sewage separation area and the treatment purification area forms a fish-vegetable symbiotic system for water recycling, which is beneficial to reducing emission and being beneficial to reasonable utilization of water resources;

2. the design of drive division helps the hydrologic cycle in the drive fish-vegetable intergrowth system, helps strengthening the rational utilization of water resource.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic system diagram of example 1;

FIG. 3 is a schematic structural view of a culture area in example 1, which is mainly used for embodying the structure of a fish pond;

FIG. 4 is a schematic structural view of a sewage separation area in example 1, which is mainly used for embodying the structure of a sewage separation apparatus;

in the figure, 1, a planting area; 2. a breeding area; 21. a fish pond; 3. a sedimentation tank; 4. a sewage separation zone; 41. a settling tube; 411. a first pipe body; 412. a second tube body; 42. a connecting pipe; 43. a water inlet pipe; 44. a water outlet pipe; 45. a sewage collecting pipe; 51. a recovery tank; 52. a purification tank; 6. a blocking part; 61. a support; 62. blocking; 63. a reinforcing bar; 71. a slot; 72. a card slot; 8. a water pipe; 91. a main pipe; 92. an air supply pipe; 93. a guide surface; 94. an ink tube; 95. roots blower, 10, vent pipe; 11. a valve; 12. a surge machine; 13. an overflow wall; 14. a water pump; 15. and (4) enclosing plates.

Detailed Description

The present invention will be described in detail below with reference to examples and the accompanying drawings.

Example 1: a fish and vegetable symbiotic system is shown in figure 1 and comprises a planting area 1, a culture area 2, a sedimentation tank 3, a sewage separation area 4 and a treatment and purification area.

Referring to fig. 1, the treatment and purification area includes a recovery tank 51 and a purification tank 52 (see fig. 2), the recovery tank 51 and the purification tank 52 are communicated with each other through a pipeline, aquatic plants are planted in the purification tank 52, the aquatic plants are water hyacinth, and the planting of the aquatic plants is helpful for absorbing nitrogen and phosphorus elements in water and improving water quality.

As shown in fig. 3, the culture area 2 (see fig. 1) includes twelve parallel fish ponds 21, and two damming portions 6 are provided in each fish pond 21. The two blocking parts 6 are arranged in parallel, and fish in the fish pond 21 is cultured between the two blocking parts 6, so that the centralized management of the fish is facilitated. The arresting part 6 comprises a bracket 61 and a barrier net 62 welded on the bracket 61, wherein the net holes on the barrier net 62 are square with the side length equal to 2cm, and the vertical section of the bracket 61 is rectangular. The barrier net 62 is further welded with a reinforcing rod 63, the reinforcing rod 63 is arranged along the vertical direction, and two ends of the reinforcing rod 63 are welded on the bracket 61.

Referring to fig. 3, handles are symmetrically arranged on one side of the bracket 61, which faces away from the fish pond 21, slots 71 are formed in two side walls of the fish pond 21, and two ends of the bracket 61 are respectively inserted into the slots 71. The bottom surface of the fish pond 21 is also provided with a clamping groove 72 matched with the bracket 61, the bracket 61 is inserted into the clamping groove 72, and the bottommost end of the bracket 61 is abutted against the fish pond 21, so that the stability of the blocking part 6 is enhanced.

Referring to fig. 3, the fishpond 21 and the purification tank 52 (see fig. 1) are provided so as to communicate with each other via two water pipes 8, and a drive unit for pushing water in the purification tank 52 (see fig. 1) into the fishpond 21 is provided between the fishpond 21 and the purification tank 52 (see fig. 1).

Referring to fig. 3, the driving unit includes a roots blower 95, a main pipe 91 connected to the roots blower 95, an air supply pipe 92 connected to the main pipe 91, and a guide surface 93 provided in the water pipe 8. The guide surface 93 is obliquely and upwards arranged from one end close to the purification pond 52 to one end close to the fishpond 21, the main pipe 91 is arranged along the horizontal direction, the air supply pipe 92 is arranged along the vertical direction, the air supply pipe 92 penetrates through the water through pipe 8 and extends into the water through pipe 8, the air supply pipe 92 is arranged in an L shape, the air supply pipe 92 is provided with a plurality of ink pipes 94 in a communicated manner, the air outlet of the ink pipes 94 is blown to the guide surface 93, the generated high-pressure airflow enables the clear water in the purification pond 52 to enter the fishpond 21, and the aquaculture sewage in the fishpond 21 is pushed into the sedimentation pond 3 (combined with the graph 1), so that the concentration of excrement in the fishpond 21 is reduced, and the fishpond 21 is cleaned.

Referring to fig. 3, two roots blowers 95 are provided, the two roots blowers 95 are provided on the same side of the cultivation area 2, two main pipes 91 are provided, the main pipes 91 are laid above the fish pond 21, the two main pipes 91 are connected to different roots blowers 95, a vent pipe 10 communicating the two main pipes 91 is provided between the two main pipes 91, an air supply pipe 92 in an adjacent fish pond 21 is connected to different main pipes 91, and valves 11 are provided on the air supply pipes 92.

Referring to fig. 1, a side of the fish pond 21 facing away from the purification pond 52 is disposed to communicate with the sedimentation pond 3, and the fish pond 21 is disposed to be inclined downward from an end close to the purification pond 52 to an end close to the sedimentation pond 3 (refer to fig. 3). The bottom surface of the sedimentation tank 3 is in a pot bottom shape, the bottom surface of the sedimentation tank 3 is lower than the bottom surface of the fishpond 21, and a surge machine 12 is arranged in the sedimentation tank 3. The bottom surface cooperation of surge machine 12 and bottom of a boiler shape more does benefit to the deposit of arranging into sedimentation tank 3 well sewage, and sedimentation tank 3 sets up with recovery pond 51 is adjacent, is provided with overflow wall 13 between sedimentation tank 3 and the recovery processing pond, makes the lower clear liquid of upper excrement concentration flow into in the recovery pond 51 from overflow wall 13 in the sedimentation tank 3.

Referring to fig. 1, a water pump 14 is arranged between the sedimentation tank 3 and the sewage separation zone 4, the water pump 14 extends into the bottom of the sedimentation tank 3, and the culture sewage with higher concentration at the bottom of the sedimentation tank 3 is pumped into the sewage separation zone 4 to separate the high-concentration sewage from the water; the sewage separation section 4 includes a water inlet pipe 43 connected to the water pump 14, a sewage separation device connected to the water inlet pipe 43, a water outlet pipe 44 connected to the sewage separation device, and a sewage collection pipe 45. The sewage collecting pipe 45 is communicated with the planting area 1, and the water outlet pipe 44 is communicated with the purifying tank 52.

As shown in fig. 4, the sewage separation apparatus includes forty settling tubes 41 arranged in a vertical direction, and the forty settling tubes 41 are connected to each other by a connection pipe 42. The settling tube 41 is arranged along the vertical direction, the settling tube 41 is composed of a first tube 411 and a second tube 412, and the second tubes 412 are communicated with each other through the sewage collecting pipe 45.

Referring to fig. 4, the first tube 411 is a circular tube, the second tube 412 is in an inverted circular truncated cone shape, one end of the second tube 412 with a larger cross section is fixedly connected to the first tube 411, the other end of the second tube extends to the end deviating from the first tube 411, and the central axis of the first tube 411 coincides with the central axis of the second tube 412. Through control water pump 14 to reach the purpose of the velocity of flow and the flow that control sewage flow in sedimentation pipe 41, with the shape cooperation of the round platform of falling, be convenient for form the swirl, more do benefit to the separation of excrement and water in the sewage, do benefit to the deposit of excrement.

Referring to fig. 4, an opening is disposed at an end of the first pipe 411 opposite to the second pipe 412, and the size of the cross section of the opening is equal to that of the cross section of the first pipe 411, so as to increase the contact area between the sewage and the air and increase the oxygen content in the sewage. A surrounding plate 15 is arranged on the upper edge of the first tube 411 along the circumferential direction, and the bottom end face of the surrounding plate 15 is fixedly connected with the upper end face of the first tube 411.

Referring to fig. 4, the cross section of the end surface of the second pipe 412 facing away from the first pipe 411 gradually decreases from the end close to the water inlet pipe 43 to the end close to the sewage pipe, the concentration of the excrement in the sewage near the end of the water inlet pipe 43 is higher, and the concentration of the excrement in the sewage near the end of the water outlet pipe 44 is lower after the sedimentation effect of the sedimentation pipe 41.

Referring to fig. 1, the supernatant separated by the sewage separation device is discharged into a purification tank 52 along with a water outlet pipe 44, recovered, purified and reused. The sewage containing high-concentration excrement separated by the sewage separation device is discharged into the planting area 1 along with the sewage collecting pipe 45, the lotus roots are planted in the planting area 1, and the lotus roots need a large amount of nutrition for growing, so that the resources are reasonably recycled.

The working condition is as follows: fishes are cultured in each of twelve fishponds 21, after the concentration of excrement in the culture water in each fishpond 21 rises, the Roots blower 95 is started to work, airflow generated by the Roots blower 95 is led into the air supply pipe 92 along the main pipe 91, the valve 11 corresponding to the air supply pipe 92 in each fishpond 21 needing water changing is opened, the airflow generated by the Roots blower 95 is led into the ink pipe 94 along the air supply pipe 92, high-pressure airflow led out of the ink pipe 94 is sprayed to the inclined guide surface 93 and is matched with the guide surface 93 to generate an air pushing effect on sewage in each fishpond 21, so that the sewage in each fishpond 21 is pushed into the sedimentation tank 3, and water purified by aquatic plants in the purification tank 52 flows into each fishpond 21 along the water supply pipe 8 for culturing the fishes.

The sewage flowing into the sedimentation tank 3 and the excrement with high concentration are deposited at the bottom of the sedimentation tank 3, the supernatant overflows the overflow wall 13, flows into the recovery tank 51, is introduced into the purification tank 52 along with the pipeline, and is introduced into the fishpond 21 through the purification effect of the aquatic plants for cultivation and the recycling of water is realized.

The sewage pump 14 is with the sewage suction sewage separator of 3 bottom high concentrations in sedimentation tank, and the separation of excrement and water is realized to the precipitation effect through a plurality of sedimentation pipes 41, and the excrement of separation is along with dirty pipe 45 row planting district 1 of collection for plant the lotus root, for the lotus root provides nutrition on the one hand, reduces the emission of filth on the one hand, helps the data saving, realizes the rational utilization of resource. The supernatant separated by the sewage separation device is discharged into a purification tank 52 along with a water outlet pipe 44, and then is introduced into the fishpond 21 for cultivation under the purification effect of aquatic plants, so that the water is further recycled.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A fish and vegetable symbiotic system comprises a culture area (2) and a planting area (1), and is characterized by also comprising a sedimentation tank (3), a sewage separation area (4) and a treatment and purification area;

lotus roots are planted in the planting area (1);

the culture area (2) comprises a plurality of parallel fishponds (21);

the treatment and purification area comprises a recovery tank (51) and a purification tank (52), and aquatic plants are planted in the purification tank (52);

one side of the fishpond (21) is communicated with the purification pond (52), the other side of the fishpond is communicated with the sedimentation pond (3), the fishpond (21) and the purification pond (52) are communicated through a water pipe (8), and a driving part for pushing water in the purification pond (52) into the fishpond (21) is arranged between the fishpond (21) and the purification pond (52);

the driving part comprises a guide surface (93) arranged in the water pipe (8), a Roots blower (95) arranged on one side of the fish pond (21), a main pipe (91) connected to the Roots blower (95), and an air supply pipe (92) connected with the main pipe (91), the guide surface (93) is arranged in an inclined and upward manner from one end close to the purification tank (52) to one end close to the fish pond (21), the air supply pipe (92) extends into the water pipe (8), an ink pipe (94) is connected to the air supply pipe (92), and the air discharged from the ink pipe (94) is blown to the guide surface (93);

the sedimentation tank (3) and the recovery tank (51) are arranged adjacently, and an overflow wall (13) is arranged between the sedimentation tank (3) and the recovery treatment tank;

a water pump (14) is arranged between the sedimentation tank (3) and the sewage separation zone (4); the sewage separation area (4) is including inlet tube (43), sewage separation device, outlet pipe (44) and the collection dirty pipe (45) that set gradually, inlet tube (43) are connected with water pump (14), collection dirty pipe (45) set up with planting district (1) intercommunication, outlet pipe (44) set up with purification tank (52) intercommunication.

2. The fish and vegetable symbiotic system according to claim 1, wherein two roots blowers (95) are provided, two main pipes (91) are provided, the two roots blowers (95) are provided on the same side of the fish pond (21), the main pipes (91) are laid above a plurality of fish ponds (21), a ventilation pipe (10) for communicating the two main pipes (91) is provided between the two main pipes (91), and the ventilation pipes (92) in the adjacent fish ponds (21) are connected to different main pipes (91).

3. A aquaponics system according to claim 2, characterised in that the blower pipes (92) are provided with valves (11).

4. A aquaponics system according to claim 1, characterised in that two stops (6) are provided in the pond (21), and that the fish in the pond (21) is raised between the two stops (6); the blocking part (6) comprises a bracket (61), a blocking net (62) fixedly connected with the bracket (61) and a reinforcing rod (63) fixedly connected with the bracket (61), and the bracket (61) is in contact with the bottom wall of the fish pond (21).

5. The fish and vegetable symbiotic system according to claim 1, wherein the sewage separation device comprises a plurality of settling pipes (41) arranged in the vertical direction, and the settling pipes (41) are communicated through a connecting pipe (42); the sedimentation tube (41) comprises a first tube body (411) and a second tube body (412), the second tube body (412) is arranged to be in an inverted round table shape, and the second tube body (412) is communicated with the sewage collecting tube (45).

6. A aquaponics system according to claim 5, wherein the cross-section of the lowermost end of the second tube (412) decreases from the end adjacent the inlet pipe (43) to the end adjacent the outlet pipe (44).

7. A fish and vegetable symbiotic system according to claim 1, wherein the bottom of the settling tank (3) is shaped as a pan bottom.

8. A fish-vegetable symbiotic system according to claim 7, wherein a surge machine (12) is also provided in the settling tank (3).