CN211813993U

CN211813993U - System for harnessing aquaculture tail water by using water dynamics

Info

Publication number: CN211813993U
Application number: CN201922358314.XU
Authority: CN
Inventors: 舒锐; 尹立鹏; 黄江; 吴文言
Original assignee: Guangzhou Guanxing Agricultural Technology Co ltd
Current assignee: Guangzhou Guanxing Agricultural Technology Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-10-30
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a system for treating culture tail water by utilizing water body dynamics; the system comprises a pond, wherein a first-stage anaerobic sedimentation tank, a second-stage biological aeration tank and a third-stage ecological water taking tank with height difference are sequentially arranged from left to right in the pond; a sedimentation tank is arranged on the side edge of the primary anaerobic sedimentation tank, one side of the sedimentation tank is communicated with the primary anaerobic sedimentation tank, and the other side of the sedimentation tank is communicated with a micro-filter through a sediment conveying pipe; the micro-filter is connected with a back washing pump, and the back washing pump is communicated with a water pump positioned in the three-stage ecological water taking pool through a water feeding pipe; the water supply pipe is provided with a plurality of connectors, each connector is connected with a circulation container, the outside of each circulation container is also provided with a fan, the fan is connected with a ventilation pipe, the ventilation pipe penetrates through all the circulation containers, the lower side part of each circulation container is provided with a drainage branch pipe, the drainage branch pipe is communicated with a drainage main pipe, and the drainage main pipe is communicated with the micro-filter.

Description

System for harnessing aquaculture tail water by using water dynamics

Technical Field

The utility model relates to a system for treating tail water of plant, concretely relates to utilize water dynamics to administer system of breeding tail water belongs to aquatic livestock breeding technical field.

Background

The blue algae is algae with wide distribution and strong adaptability; the compound fertilizer is like to live in a water body with rich organic matters and higher pH value, is like high temperature, mainly grows in fresh water, becomes an important phytoplankton in the fresh water, and has stronger tolerance to adverse environments such as temperature and salinity rise, illumination, nutrient and dissolved oxygen reduction, appearance of hydrogen sulfide and the like.

The main reason for this is the accumulation of excess nutrient-rich substances in the water. The main reason for the development of blue algae is that the development and utilization of environmental resources are increasing with the human beings due to artificial eutrophication, the development of industry and the high concentration of rural population, and a large amount of industrial wastewater and domestic sewage containing pollutants are discharged into the water body without being properly treated, so that the concentration of oxygen consuming substances such as ammonia nitrogen, phosphorus and organic pollutants in the water body is increased, and the load of the nutrients in the water is increased.

Especially, in the aquaculture process of aquatic plants, when the feed put into the pond is not completely utilized by fishes and the like, and the nutrient components enriched by the discharged excrement can further increase the outbreak of blue algae.

A large amount of dissolved oxygen in the water body can be consumed; when the blue algae die, algal toxins are released, a large amount of organic matters are formed after the blue algae die, fishy smell is emitted, and the water quality is seriously deteriorated; if the cultured animals eat the blue algae (or dead blue algae) by mistake, diseases such as enteritis and the like are easily caused; large-scale blue algae outbreaks, known as "green tides". The green tide causes the deterioration of water quality, and the death of fishes and shrimps caused by the exhaustion of oxygen in water in severe cases. More seriously, some species of cyanobacteria (e.g., microcystis) also produce toxins, with about 50% of the green tide containing large amounts of MC. MC is an important cause of liver cancer, besides generating toxicity to fishes, shrimps, people and livestock directly.

Therefore, the treatment of blue algae has been a concern, and chinese patent No. 201510817791.X is a method for treating cyanobacterial bloom, which uses an unmanned aerial vehicle to spray drugs on blue algae floating on the water surface. The medicines are copper sulfate, permanganate, aluminum sulfate, ferrate composite reagent, liquid chlorine and the like, but the method can cause secondary pollution to the environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a do not produce secondary pollution, processing method is simple, and the treatment effect is good, utilizes the water dynamics to administer the system of breeding the tail water.

Therefore, the utility model provides a technical scheme is such:

the system for treating the culture tail water by utilizing water body dynamics comprises a pond, wherein the pond is sequentially provided with a primary anaerobic sedimentation tank, a secondary biological aeration tank and a tertiary ecological water taking tank from left to right, and a height difference exists between the primary anaerobic sedimentation tank and the secondary biological aeration tank; the height difference exists between the secondary biological aeration tank and the tertiary ecological water taking tank; a sedimentation tank is arranged on the side edge of the primary anaerobic sedimentation tank, one side of the sedimentation tank is communicated with the primary anaerobic sedimentation tank, and the other side of the sedimentation tank is communicated with a micro-filter through a sediment conveying pipe; the micro-filter is connected with a back washing pump, and the back washing pump is communicated with a water pump positioned in the three-stage ecological water taking pool through a water feeding pipe; the water supply pipe is provided with a plurality of connectors, each connector is connected with a circulating container, a fan is arranged outside each circulating container, the fan is connected with a ventilation pipe, the ventilation pipes penetrate through all the circulating containers, the lower side part of each circulating container is provided with a water drainage branch pipe, the water drainage branch pipe is communicated with a water drainage main pipe, and the water drainage main pipe is communicated with the micro-filter.

Furthermore, the system for treating the culture tail water by utilizing the water body dynamics is characterized in that the water feeding pipe is communicated with the micro-filter through a back flushing pipe.

Further, in the system for treating the culture tail water by using water body dynamics, the height difference between the primary anaerobic sedimentation tank and the secondary biological aeration tank is 20 cm; the height difference between the secondary biological aeration tank and the tertiary ecological water taking tank is 20cm, and the depth of the tertiary ecological water taking tank is 4 m.

Furthermore, in the system for treating the aquaculture tail water by using water dynamics, a slope is arranged on the left side of the primary anaerobic sedimentation tank, and the sedimentation tank and the micro-filter are positioned outside the slope.

Furthermore, the system for treating the culture tail water by utilizing the water body dynamics comprises a circulating container and a circulating container, wherein a nano oxygen increasing pipe is arranged in the container and is communicated with a ventilation pipe; the side part of the circulating container is provided with a fish outlet, the inside of the circulating container is provided with an inclined-plane dirt collecting groove, and the top of the circulating container is provided with a skylight.

Furthermore, in the system for treating the culture tail water by utilizing water body dynamics, a first overflow weir is arranged between the primary anaerobic sedimentation tank and the secondary biological aeration tank; and a second overflow weir is arranged between the secondary biological aeration tank and the tertiary ecological water taking tank.

Compared with the prior art, the utility model provides a technical scheme has following technical advantage:

1. the technical scheme provided by the utility model is different according to the water circulation and regulation and control principle, innovatively develops a land-based water pushing container type aquaculture mode suitable for linkage of a traditional aquaculture area and a pond, realizes 'subarea aquaculture and ex-situ treatment', is based on an ecological pond, builds a container type circulation aquaculture box on a shore base for fish culture, and realizes water purification and water level balance by performing water circulation with the pond;

2. a container type aquaculture waste recycling and emission reduction system is constructed.

A container type aquaculture waste recycling mechanical collection, three-stage biological treatment and dual-carbon-source coupling emission reduction system is constructed, and the three parts of the system can be coupled in the whole system and can also be used independently. The solid waste collection rate can reach more than 90%.

3. Four disease prevention and control barriers are integrally and innovatively constructed: the oxygen-enriched water on the upper layer of the ecological pond is pumped into the tank, so that pathogenic bacteria of the aquaculture water body are greatly reduced; the ozone generator is arranged at the main water inlet pipe, ozone can inhibit bacteria and sterilize, can also kill parasites, remove ammonia nitrogen, iron and manganese, oxidize and decompose organic matters and have flocculation effect, and reduce heavy metal toxicity and ammonia nitrogen toxicity in the aquaculture water body; the aquaculture diseases are mainly conditional pathogenic bacteria which are mostly in positive correlation with high temperature, and the container type aquaculture can accurately adjust the water temperature and reduce the occurrence of the diseases; the sub-tanks are isolated to prevent diffusion, water circulation can be closed if diseases occur, the sub-tanks are accurately treated, and the large ecological environment of the pond cannot be damaged.

4. The technology for improving the quality of aquatic products and guaranteeing the quality is innovated: a quality control system is established, the production mode is cleaner, and the quality is controllable. Firstly, the risk potential is few. The breeding drug is greatly reduced. Secondly, the quality is easy to trace. The management, recording and monitoring processes of container cultivation can be carried out under a video system, and the quality in the whole process can be controlled and traced. Thirdly, the meat quality and the taste are good. The meat quality and taste of the fishes cultured in the container mode are comprehensively improved from indexes such as texture hardness, elasticity, chewing, stickiness and the like.

Drawings

FIG. 1 is a schematic structural view of a system for treating aquaculture tail water by using water dynamics;

fig. 2 is a perspective view of a pond provided by the utility model.

Fig. 3 is a structural diagram of the circulation container provided by the utility model.

The symbols in the drawings indicate the following elements and their like:

the device comprises a pond 1, a primary anaerobic sedimentation tank 2, a secondary biological aeration tank 3, a tertiary ecological water taking tank 4, a sedimentation tank 5, a sediment conveying pipe 6, a micro-filter 7, a backwashing pump 8, a water feeding pipe 9, a water pump 10, a connector 11, a circulating container 12, a box body 121, a nano oxygenation pipe 122, a fish outlet 123, an inclined surface sewage collecting groove 124, a skylight 125, a ventilating pipe 13, a main drainage pipe 14, a fan 15, a ventilating branch pipe 16, a backwashing pipe 17, a first overflow weir 18, a second overflow weir 19, a drainage branch pipe 20 and a slope 21.

Detailed Description

The following claims are presented to illustrate the invention in further detail with reference to specific embodiments, but not to limit the invention in any way.

Example 1

The utility model provides a system for utilize water dynamics to administer cultivation tail water, refer to fig. 1 to 3, including pond 1, pond 1 is from right side to left side for one-level anaerobic sedimentation tank 2, second grade biological aeration tank 3 and tertiary ecological pond 4 of getting water in proper order, be equipped with first overflow weir 17 between one-level anaerobic sedimentation tank 2 and second grade biological aeration tank 3; a first overflow weir 18 is arranged between the secondary biological aeration tank 3 and the tertiary ecological water taking tank 4. The primary anaerobic sedimentation tank 2 is higher than the secondary biological aeration tank 3; the second-level biological aeration tank 3 is higher than the third-level ecological water taking tank 4; the height difference between the primary anaerobic sedimentation tank 2 and the secondary biological aeration tank 3 is 20 cm; the height difference between the secondary biological aeration tank 3 and the tertiary ecological water taking tank 4 is 20 cm; the depth of the three-level ecological water taking tank 4 is 4 m; the drop height of 20cm is kept between every two stages to form water flow shearing force, so that blue algae can be inhibited.

A sedimentation tank 5 is arranged on the side edge of the primary anaerobic sedimentation tank 2, one side of the sedimentation tank 5 is communicated with the primary anaerobic sedimentation tank 2, and impurities are preliminarily precipitated by the sedimentation tank 5; the other side is communicated with a micro-filter 7 through a sediment conveying pipe 6; preferably, the left side of the primary anaerobic sedimentation tank 2 is provided with a slope 21, and the sedimentation tank 5 and the micro-filter 7 are positioned outside the slope 21. The micro-filter 7 is connected with a back washing pump 8, and the back washing pump 8 is communicated with a water pump 10 positioned in the three-stage ecological water taking tank 4 through a water feeding pipe 9; the upper water pipe 9 is communicated with the micro-filter 7 through a back flushing pipe 17; the residual water in the pipe is filtered by a solid micro-filter 7 (a 120-mesh screen is used for removing more than 90% of large-particle impurities), the separated residual bait manure can be used as an organic fertilizer, and the filtered water flows into a three-level ecological pond (a first-level anaerobic sedimentation tank, a second-level biological aeration tank and a third-level ecological water taking tank respectively).

Go up 9 bodys of water pipe on be equipped with a plurality of connectors 11, every connector 11 on be connected with a circulation container 12 that is used for breeding fish, in fish culture circulation container 12, the event is at the pond bed mud of breeding fish in-process contactless, has avoided the earthy smell, effectively promotes the aquatic products quality. The feed is no longer thrown into the pond in the whole process, the bottom materials of the pond cannot become dirty and smelly, the water source can be recycled, the pond is recovered to be the function of the ecological wetland, and the development and transformation of the traditional culture to leisure fishery and sightseeing agriculture are realized.

A fan 15 is arranged outside the circulating container 12, a ventilation pipe 13 is connected to the fan 15, and the ventilation pipe 13 penetrates through all the circulating containers 12. Firstly, continuously pumping the oxygen-enriched water in the middle and upper layers of the pond into a circulating container by using a water pump 10, and improving the dissolved oxygen of the water body by using the aeration of an air blower to ensure high-density culture; the bionic circulation is simulated in the box body, the optimal flow velocity is kept, and the healthy growth of the fish is promoted.

A drainage branch pipe 20 is arranged at the lower side part of each circulation container 12, the drainage branch pipe 20 is communicated with a drainage main pipe 14, and the drainage main pipe 14 is communicated with a micro-filter 7; after the culture tail water is discharged out of the tank, the culture tail water is filtered by a solid-liquid separation device (a 120-mesh screen is used for removing more than 90% of large-particle impurities), the separated residual bait manure can be used as an organic fertilizer, the filtered water flows into ecological tanks (a first-stage anaerobic sedimentation tank, a second-stage biological aeration tank and a third-stage ecological water taking tank respectively), a drop of 20cm is kept between each stage, and water flow shearing force is formed to inhibit blue algae; the fish culture process does not contact the bottom mud of the pond, thereby avoiding the earthy taste and effectively improving the quality of aquatic products.

More specifically, the circulation container 12 includes a box body 121, a nano oxygen increasing pipe 122 for aeration and oxygen increasing is arranged in the box body 121, and the nano oxygen increasing pipe 122 is communicated with the ventilation pipe 13; the side of the circulating container 12 is provided with a fish outlet 123 for collecting fish rapidly, the outside of the circulating container 12 is provided with an inclined dirt collecting groove 124 for collecting dirt, and the top is provided with a skylight 125 for feeding feed and transmitting light.

Because the technical scheme that this application provided adopts "subregion breed, ectopic processing", whole process no longer throws the fodder to in the pond, and the pond bottom material can not become dirty and smelly, can realize water source cyclic utilization, and the pond resumes to ecological wetland function this moment, has realized traditional breed and has changeed to the development of leisure fishery, sightseeing agriculture.

Compared with the traditional culture mode, the mode has the advantages of water and land conservation, ecological environmental protection, standardized production, large-scale operation, short construction period, strong mobility, high culture density, high feed utilization rate, low comprehensive culture cost, simple fish harvesting, strong disaster resistance, controllable diseases and the like. In addition, the circulating container can meet the requirements of standardized production, has low production cost and low defective rate, can meet the requirements of highways, trains and ships, and is suitable for large-scale popularization.

Through the novel efficient aquaculture mode, the production efficiency is effectively improved, the aquaculture energy consumption is reduced, the aquaculture wastewater pollution is reduced, and the positive effect on ecological environment protection is achieved. In the aspect of industrial transformation, the mode provides a reliable solution for national fishing and lake returning, fishing and river returning, fishing and sea returning, not only realizes fishery offshore breeding, provides a transformation mode for the following traditional fishermen who can catch and drag fish without fish, can avoid the influence of major natural disasters, and is favorable for guaranteeing the breeding property safety of fishermen. Meanwhile, the mode combines the technology of the Internet of things and a digital monitoring means, adds two flying wings of industrialization and intellectualization to the traditional aquaculture industry, promotes the revolutionary promotion and development of aquaculture industry, and realizes the progress of the aquaculture industry to the 2.0 era.

Claims

1. The system for treating the culture tail water by utilizing water body dynamics comprises a pond (1) and is characterized in that the pond (1) is sequentially provided with a primary anaerobic sedimentation tank (2), a secondary biological aeration tank (3) and a tertiary ecological water taking tank (4) from right to left, and a height difference exists between the primary anaerobic sedimentation tank (2) and the secondary biological aeration tank (3); the height difference exists between the secondary biological aeration tank (3) and the tertiary ecological water taking tank (4); a sedimentation tank (5) is arranged on the side edge of the primary anaerobic sedimentation tank (2), one side of the sedimentation tank (5) is communicated with the primary anaerobic sedimentation tank (2), and the other side of the sedimentation tank is communicated with a micro-filter (7) through a sediment conveying pipe (6); the micro-filter (7) is connected with a back washing pump (8), and the back washing pump (8) is communicated with a water pump (10) positioned in the three-stage ecological water taking tank (4) through a water feeding pipe (9); go up water pipe (9) on be equipped with a plurality of connectors (11), every connector (11) on be connected with a circulation container (12), circulation container (12) outside still is equipped with fan (15), fan (15) on connect a ventilation pipe (13), ventilation pipe (13) run through in all circulation containers (12), every circulation container (12) downside establish the drainage and divide pipe (20), the drainage divide pipe (20) and main sewer (14) intercommunication, main sewer (14) and micro-filter (7) intercommunication.

2. The system for harnessing aquaculture tailwater using hydrodynamics of claim 1, wherein the supply pipe (9) is in communication with the microfiltration machine (7) via a backwash pipe (17).

3. The system for harnessing aquaculture tail water using water dynamics as claimed in claim 1, wherein the height difference between the primary anaerobic sedimentation tank (2) and the secondary bio-aeration tank (3) is 20 cm; the height difference between the secondary biological aeration tank (3) and the tertiary ecological water taking tank (4) is 20 cm; the height of the three-level ecological water taking tank (4) is 4 m.

4. The system for harnessing aquaculture tail water using water dynamics of claim 1, wherein the primary anaerobic sedimentation tank (2) is provided with a slope (21) at the left side, and the sedimentation tank (5) and the micro-filter (7) are located outside the slope (21).

5. The system for harnessing aquaculture tail water using water dynamics as claimed in claim 1, wherein said circulation container (12) comprises a tank (121), said tank (121) having a nano-oxygenation pipe (122) therein, said nano-oxygenation pipe (122) being in communication with said ventilation pipe (13); the side part of the circulating container (12) is provided with a fish outlet (123), the outside of the circulating container (12) is provided with an inclined-plane dirt collecting groove (124), and the top of the circulating container is provided with a skylight (125).

6. The system for harnessing aquaculture tail water using water dynamics as claimed in claim 1, wherein a first overflow weir (18) is provided between the primary anaerobic sedimentation tank (2) and the secondary bio-aeration tank (3); a second overflow weir (19) is arranged between the secondary biological aeration tank (3) and the tertiary ecological water taking tank (4).