CN107223620B

CN107223620B - Water treatment system and water treatment method based on shellfish culture

Info

Publication number: CN107223620B
Application number: CN201710664193.4A
Authority: CN
Inventors: 郭伟锋
Original assignee: Zhejiang Qinghu Holding Group Co ltd
Current assignee: Zhejiang Qinghu Holding Group Co ltd
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2022-10-25
Anticipated expiration: 2037-08-04
Also published as: CN107223620A

Abstract

The invention provides a water treatment system and a water treatment method based on shellfish culture, and relates to the technical field of biological water pollution treatment. The system comprises: the floating pipe, the lifting pipe and the feeding pipe; the floating pipe can be positioned at a preset water level of the water body; the lifting pipe is used for introducing gas or water, and the feeding pipe is used for conveying materials; the lifting pipe and the feeding pipe are bound with each other; the lifting pipe and/or the feeding pipe are/is provided with a buoyancy piece which can enable the lifting pipe to just sink after water is injected; the lifting pipe and/or the feeding pipe are connected with the floating pipe through a connecting rod, so that the lifting pipe and the feeding pipe can swing up and down around the floating pipe after the lifting pipe is inflated or filled with water; the feeding pipe is connected with a foster box. The invention solves the problems that the traditional culture purification method does not consider biological survival and continuous treatment and has low treatment efficiency. The invention can make the shellfish fully contact with floating plants and fully and continuously play the function of purifying water after the shellfish is supplemented with limited energy.

Description

Water treatment system and water treatment method based on shellfish culture

Technical Field

The invention relates to the technical field of biological water pollution treatment, in particular to a water treatment system and a water treatment method based on shellfish culture.

Background

The method is mainly used for treating a large amount of wide rural non-point source pollution, basically takes restaurant wastewater, domestic wastewater, livestock and poultry breeding wastewater and the like as main components, takes biological organic matters as main components, belongs to eutrophication pollution, is similar to the traditional breeding water environment, and is essentially different from industrial wastewater.

The existing water treatment methods are basically classified into physical methods, chemical methods, and biological methods. Eutrophic water pollution is suitable for being treated by adopting a biological method, the water treatment biological method on the market at present has a relatively simple structure, and the components of manual operation are more. Researches find that a plurality of aquatic organisms such as shellfish have good water purification effect, and how to purify water bodies on the basis of aquaculture becomes the focus of attention of people.

The existing method for purifying the water body by being beneficial to aquaculture has a plurality of defects: for example, in the process of purifying a water body by culturing freshwater mussels, the silt of lake bottom sediments of a general polluted water body is thick, and the freshwater mussels can only live in viscous rare earth in a natural water area, so that the freshwater mussels are submerged by the silt when the freshwater mussels are directly put into the silt, the survival rate is extremely low, and the water control effect of the freshwater mussels is limited. The freshwater mussels inhabit at the lake bottom, the water temperature is low, the filter feeding amount of the freshwater mussels with low water temperature is reduced, meanwhile, phytoplankton has the habit of vertically moving up and down day and night, the water temperature rises in the daytime, but algae are positioned on the upper layer of the water surface, and the freshwater mussels are difficult to achieve the ideal water control effect on the bottom layer. If a plurality of polluted floating objects such as white floating balls and green beverage bottles are covered on a beautiful lake surface due to the traditional mussel hanging culture mode, the water surface landscape is poor, and besides, a plurality of pollutants on the lake surface float, the traditional culture method also causes the lake surface to be difficult to ship.

The prior art has simple structure and complicated operation, and the treatment effect is not good enough or the best treatment effect is not achieved because various conditions actually met are not comprehensively considered and adjusted. In addition, similar biological treatment technologies do not consider the survival and continuous treatment of organisms, solve certain pollution to a certain extent, but have poor continuity of treatment, and can solve short-term residues but cannot perform long-term treatment.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

One of the purposes of the invention is to provide a water treatment system based on shellfish culture, which utilizes the function of high-density shellfish water treatment, can filter and eat clear water at a preset water level by the lifting of a lifting pipe, relieves the problem of poor water treatment effect caused by the up-and-down vertical migration habit of phytoplankton in day and night, and can solve the problem of shellfish feeding by matching with a feeding pipe on the premise of not polluting a water body, so that the water body can be treated continuously.

The invention also aims to provide a water treatment method adopting the water treatment system based on shellfish culture, which is an efficient method for treating biomass organic wastewater, has the characteristics of large treatment capacity, low cost, easy operation, economic management and long effect compared with other biological treatment methods, and is suitable for non-point source polluted water bodies in different regions of south and north, such as large lakes and rivers, medium and small-sized reservoirs, fish ponds and the like.

In order to achieve the above purpose of the present invention, the following technical solutions are adopted:

a shellfish farming-based water treatment system comprising: the two ends of the floating pipe are sealed, and the lifting pipe and the feeding pipe are connected with the floating pipe;

the floating pipe can be positioned at a preset water level of the water body; the lifting pipe is used for introducing gas or water, and the feeding pipe is used for conveying materials; the lifting pipe and the feeding pipe are bound with each other;

the lifting pipe and/or the feeding pipe are/is provided with a buoyancy piece, and the buoyancy piece can enable the lifting pipe and the feeding pipe to just sink after water injection;

the lifting pipe and/or the feeding pipe are connected with the floating pipe through a connecting rod, so that the lifting pipe and the feeding pipe can swing up and down around the floating pipe after the lifting pipe is inflated or filled with water;

the feeding pipe is connected with the fostering box and is used for feeding the shellfish in the fostering box.

Preferably, on the basis of the technical scheme of the invention, two fixing piles are arranged at the bottom of the water body and are respectively connected with two ends of the floating pipe through connecting ropes, so that the floating pipe can float at the preset water level of the water body.

Preferably, on the basis of the technical scheme of the invention, the feeding pipe is connected with the floating pipe through two connecting rods, and the end parts of the connecting rods are respectively sleeved at the two ends of the feeding pipe and the floating pipe through anchor ears.

Further, on the basis of the technical scheme of the invention, lock hoops are sleeved on the feeding pipes on the two sides of the hoop and the pipe body of the floating pipe;

the distance between the lock hoop and the hoop is 0.5-3 cm.

Further, on the basis of the technical scheme of the invention, the feeding pipe is connected with the fostering box through a connecting pipe; the fostering box is internally provided with a butt joint mouth.

Further, on the basis of the technical scheme of the invention, the water treatment system based on shellfish culture also comprises: an air compressor and a water pump;

the air compressor and the water pump are each independently in communication with the elevator tube.

Further, on the basis of the technical scheme of the invention, the water treatment system based on shellfish culture also comprises: a feed system;

the feeding system comprises a proportioning pool, a material storage tank, a pressure tank, a material conveying pipeline network and a central controller;

the material distribution tank is connected with the material storage tank through a lifting pump, the material storage tank is connected with the material conveying pipe network through a pressure pump and a pressure tank, and the material conveying pipe network is communicated with the feeding pipe;

the central controller respectively with the batching pond the elevator pump the storage tank the force pump with the overhead tank electricity is connected, in order to control the batching pond is joined in marriage the control the elevator pump will material in the batching pond promotes to the storage tank, and the control will material in the storage tank passes through the force pump with the overhead tank is carried in the pipeline of defeated material pipe network.

Further, on the basis of the technical scheme of the invention, a water flow switch and an electromagnetic valve are arranged on the pipeline of the material conveying pipe network;

the central controller is electrically connected with the water flow switch and the electromagnetic valve respectively;

the water flow switch converts water flow information of the conveying pipe network pipeline into an electric signal to be transmitted to the central controller, and the central controller controls the opening and closing of the electromagnetic valve according to the electric signal.

A water treatment method adopting the water treatment system based on shellfish culture.

Further, on the basis of the technical scheme of the invention, the method comprises the following steps:

inflating the lifting pipe in daytime to enable the lifting pipe and the feeding pipe to float on a preset water layer on the upper layer of the water body, and shellfish in the fostering box can filter and eat phytoplankton on the upper layer of the water body; and injecting water into the lifting pipe at night, so that the lifting pipe and the feeding pipe can sink into the bottom layer of the water body to preset a water layer, and shellfish in the fostering box can filter phytoplankton on the bottom layer of the water body.

Compared with the prior art, the invention has the following beneficial effects:

(1) The shellfish culture-based water treatment system provided by the invention adopts a suspension type hanging culture device capable of automatically lifting, the device can be bound to shellfish on the device system, the automatic lifting function is realized by inflating and injecting water into a lifting pipe, and the shellfish can catch up algae to filter and eat clear water at a preset water level through automatic lifting, so that the aim of effectively treating water is fulfilled. Through the device system, phytoplankton in water can be fully absorbed by means of the filter feeding function of shellfish, so that the function of purifying water is achieved.

(2) The hanging culture mode is a suspended hanging culture mode, pipelines cannot float on the water surface, the problem that beverage bottles pollute a fishpond or the water surface due to the fact that the beverage bottles are used in the hanging culture mode in the prior art is solved, and the hanging culture mode is green and environment-friendly.

(3) The feeding device feeds the shellfish in the fostering box by matching with the feeding pipe, the fed food is directly conveyed into the oral cavity of the shellfish through the pipeline in the fostering box and can be in zero contact with the water body, the shellfish drinks dirty water but pure water, the water body exchange is realized through circulating feeding and water filtering, and organic debris, bacteria and algae in the water body with the particle size of more than 2000 meshes can be filtered. On the premise of not polluting the water body, the shellfish can fully and continuously play a role of purifying the water body after being supplemented with limited energy by feeding, so that the water body can be continuously treated.

(4) The invention relates to a method for efficiently treating biomass organic wastewater, which has the characteristics of large treatment capacity, low cost, easy operation, management saving and long effect compared with other biological treatment methods, is suitable for the remediation of large, medium and small eutrophic water bodies, the purification of landscape lake water bodies and the purification of water bodies in internal lakes and rivers, has wide application range, can purify water bodies in water areas of more than ten mu and units of less than ten mu. The method can quickly remove ammonia nitrogen, nitrite, nitrate, phosphate, total nitrogen, total phosphorus and chemical oxygen demand in the water body. In addition, the shellfish has strong absorption and solidification effects on toxic and harmful substances of heavy metals such as aluminum, chromium and the like in water and river sediment, and is an environment restoration and preferable variety.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a shellfish farming based water treatment system according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at P;

FIG. 3 is a schematic view of the feed system of the present invention;

fig. 4 is a schematic structural diagram of a shellfish farming-based water treatment system according to another embodiment of the present invention.

Icon: 100-a floating pipe; 200-a lifting pipe; 300-a feed pipe; 400-connecting rod; 500-fostering box; 210-a floating ball; 110-spud piles; 120-a connecting rope; 410-anchor ear; 420-a locking collar; 510-a connecting tube; 520-a docking nozzle; 600-a dosing tank; 610-a storage tank; 611-a lift pump; 612-a pressure pump; 620-pressure tank; 710-water flow switch; 720-electromagnetic valve; 800-an air compressor; 900-water pump.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

According to an aspect of the present invention, there is provided a shellfish farming-based water treatment system, wherein: fig. 1 is a schematic structural diagram of a shellfish farming-based water treatment system according to a first embodiment of the present invention.

As shown in fig. 1, the shellfish culture-based water treatment system includes: a floating pipe 100, an elevator pipe 200 and a feeding pipe 300, which are closed at both ends; the floating pipe 100 can be positioned at a preset water level of the water body; the lifting pipe 200 is used for introducing gas or water, and the feeding pipe 300 is used for conveying materials; the elevator tube 200 and the feed tube 300 are bound to each other; the lifting pipe 200 and/or the feeding pipe 300 are/is provided with a buoyancy piece which can ensure that the lifting pipe 200 just sinks after water injection; the lifting pipe 200 and/or the feeding pipe 300 are connected with the floating pipe 100 through the connecting rod 400, so that the lifting pipe 200 and the feeding pipe 300 can swing up and down around the floating pipe 100 after the lifting pipe 200 is inflated or filled with water; the feeding pipe 300 is connected with the fostering box 500 for feeding the shellfish in the fostering box 500.

The system can be designed for all shellfish with a closed function, and the water body is purified by the water filtering characteristic of the shellfish with the closed function. Typical but non-limiting shellfish include: seawater shellfish, mussels, such as: hyriopsis cumingii, crista plicata, anodonta denticulata, etc. Preferably a freshwater mussel.

The floating pipe 100 can be positioned at a preset water level of the water body, the floating pipe 100 can be positioned at the preset water level of the water body through a fixing mode (such as mechanical fixing), and the floating pipe 100 can also be positioned at the preset water level of the water body in a floating mode through other modes. The preset water level is the middle water level between the preset water level of the upper layer of the water body which can be reached by the planned elevating tube 200 in the highest position and the preset water level of the bottom layer of the water body which can be reached by the planned elevating tube 200 in the lowest position, and can also be positioned in the middle of the water body.

The floating pipe 100 can be a solid pipe or a hollow pipe, the floating pipe 100 takes a preset length value, and when the floating pipe 100 is the hollow pipe, two ends of the floating pipe 100 are closed; the floating pipe 100 is positioned at a preset water level of the water body, the lifting pipe 200 is tied to the feed pipe 300, and the feed pipe 300 is communicated with the fostering box 500 to feed the shellfish in the fostering box 500.

The binding of the elevator tube 200 to the feed tube 300 can be done in a conventional manner, preferably by plastic webbing.

The elevating pipe 200 and/or the feeding pipe 300 is provided with a buoyancy member, and preferably, the elevating pipe 200 is provided with a buoyancy member, and the buoyancy member is tied on the elevating pipe 200 according to the weight of the shellfish on the fostering box 500. The buoyancy member refers to a member capable of providing buoyancy, such as a float or floater, preferably the float 210. Taking the floating ball 210 as an example, the debugging method of the system of the invention is explained as follows: the number of the floating balls 210 is controlled so that the buoyancy of the floating balls 210 just cannot support the elevator tube 200 and sink to the bottom of the pool after the elevator tube 200 is filled with water. When the cage 500 is filled with shellfish, the lifting pipe 200 can be filled with water, then the floating balls 210 enough for supporting the shellfish can be bound, the bound floating balls 210 can be cut one by one after the shellfish is fully placed on the cage 500, the ball cutting can be stopped immediately until the cut floating balls 210 just see that the lifting pipe 200 sinks, the debugging is completed, at the moment, the shellfish can float on the water return surface as long as the lifting pipe 200 is inflated, and when the weight of the shellfish exceeds the debugged load value, the load value can be corrected by properly adding the floating balls 210.

The elevator tube 200 and/or the feed tube 300 are connected to the floating tube 100 by a linkage 400, and preferably the feed tube 300 is connected to the floating tube 100 by a linkage 400, such that the elevator tube 200 and the feed tube 300 can swing up and down around the floating tube 100 after the elevator tube 200 is inflated or filled with water.

Through the positioning of the floating pipe 100, the position of the floating pipe 100 is kept unchanged, the lifting pipe 200 and the feed pipe 300 can rotate around the floating pipe 100 through the connecting rod 400, and therefore the lifting pipe 200 and the feed pipe 300 carry the shellfish to do up-and-down swinging lifting motion around the floating pipe 100. After the lifting pipe 200 is inflated, the lifting pipe 200 and the feeding pipe 300 bring the shellfish to float and rise to the highest position which can be reached by the lifting pipe 200 under the action of buoyancy, namely the upper water layer of the preset water body; when the elevator tube 200 is filled with water, the elevator tube 200 and the feeding tube 300 carry the shellfish to the lowest position of the elevator tube 200, i.e. the bottom water layer of the water body, under the action of gravity.

The size of the connecting rod 400 is calculated according to the water depth of the treated water body and the planned maximum elevation height, the size of the connecting rod 400 is = (water depth-planned maximum elevation height)/2, namely, the floating pipe 100 is positioned at a certain water level, and since the connecting rod 400 rotates around the floating pipe 100 (taking the floating pipe 100 as an axis) like a swing arm to realize the elevation of the shellfish, the maximum elevation height which can be reached by the plan can be reached through the water level of the floating pipe 100 and the size of the connecting rod 400.

At present, non-point source pollution can cause eutrophication of water, excessive propagation of algae in the water is caused by over-standard ammonia nitrogen and total phosphorus in the water, the algae like sunshine inhabit on the upper layer of the water along with the temperature in the daytime and sink into the lake bottom along with the drop of the water temperature at night, and because phytoplankton has the habit of vertical migration up and down around the day and night, the water treatment system based on shellfish culture adopts a suspension type hanging culture device capable of automatically lifting, the system realizes the function of automatic lifting through inflation and water injection of a lifting pipe 200, and shellfish can filter and eat clean water at a preset water level by following the algae through automatic lifting, so that the aim of effectively controlling water is fulfilled.

The traditional method for culturing the shellfish limits the culture density after the organic fertilizer is put in the water body, the fertilizer is continuously fermented in the water body because the fertilizer is put in the water body, a large amount of oxygen in the water body can be consumed by fermentation, and a large amount of algae can be bred by putting the organic fertilizer in the water body, so that the water body is polluted. The traditional culture method has the advantages that the water body is subjected to fertilization firstly, and then shellfish purification cannot be achieved, only manpower and material resources are wasted, so that a destructive test of the water body is undoubtedly carried out, and finally the traditional culture method can be limited to about 1000 culture densities per mu, otherwise, a large amount of blue algae in the water body can be caused to erupt. The system of the invention alleviates the problem, shellfish in the fostering box 500 is fed by matching with the feeding pipe 300, the fed food can be in zero contact with the water body, the water body is restored and restored to return to a natural state, the dissolved oxygen of the water body reaches over 9mg/L, the oxygen demand of the shellfish with the density of over 5 times of the traditional cultivation is fully ensured by zero feeding and returning oxygen, the shellfish can be cultivated in high density, the water body exchange is realized by the circulating feeding and water filtering of the shellfish, organic debris, bacteria and algae in the water body can be filtered, and the shellfish can fully and continuously play the function of purifying the water body after being supplemented with limited energy by feeding on the premise of not polluting the water body, so that the water body can be continuously treated.

In a preferred embodiment, two fixing piles 110 are provided at the bottom of the water body, and the two fixing piles 110 are connected to both ends of the floating pipe 100 by connecting lines 120, respectively, so that the floating pipe 100 can float at a preset water level of the water body.

Preferably, the flotation tube 100 is a PVC tube.

The floating pipe 100 takes a preset length value, two ends of the floating pipe 100 are sealed, two fixing piles 110 are respectively connected with two ends of the floating pipe 100 through connecting ropes 120, the fixing piles 110 are fixed at preset positions at the bottom of the pool, and the connecting ropes 120 are tightened to vertically float the floating pipe 100 in the middle of a water layer.

When the size of the floating pipe 100 is preset, the buoyancy of the floating pipe 100 is larger than that of the lifting pipe 200, so that the position of the floating pipe 100 is ensured not to be changed obviously and is fixed when the lifting pipe 200 and the feeding pipe 300 lift or descend with shellfish.

The spud pile 110 is fixed at the bottom of the pool, and the floating pipe 100 is positioned at a preset water level of the water body by the spud pile 110 and the connecting rope 120, and the positioning mode is convenient to operate and easy to control.

In a preferred embodiment, as shown in FIG. 2, the feeding tube 300 is connected to the floating pipe 100 by two connecting rods 400, and the ends of the connecting rods 400 are respectively sleeved on the two ends of the feeding tube 300 and the floating pipe 100 by hoops 410.

The two ends of the connecting rod 400 are respectively connected with a pair of hoop rings, the hoop rings are respectively sleeved at the two ends of the feeding pipe 300 and the floating pipe 100, namely, the two ends of the feeding pipe 300 and the floating pipe 100 are sleeved with the hoops 410, and the two hoops 410 at the same end of the feeding pipe 300 and the floating pipe 100 are connected through the connecting rod 400, so that the rotation between the connecting rod 400 and the feeding pipe 300 as well as between the connecting rod 400 and the floating pipe 100 is realized. The hoop 410 is adopted to facilitate operation, and can stably operate in water, so that the lifting pipe 200 and the feeding pipe 300 can ascend and descend.

In a preferred embodiment, the locking hoop 420 is sleeved on the feeding pipe 300 and the floating pipe 100 on both sides of the hoop 410; the distance between the locking hoop 420 and the hoop 410 is 0.5-3 cm, preferably 1cm.

A certain gap is left between the anchor ear 410 and the lock hoop 420, so that the anchor ear 410 can fully perform the up-and-down swing arm motion between the two lock hoops 420 outside the anchor ear 410.

In a preferred embodiment, the feeding tube 300 is connected to the foster box 500 by a connecting tube 510; the foster box 500 is provided with a docking nozzle 520.

The materials in the feeding pipe 300 can enter the foster box 500 through the connecting pipe 510 and are directly aligned to the shellfish gills for feeding through the butt joint mouth 520 in the foster box 500, so that the feeding is more accurate. By adopting the mode, effective and accurate feeding of the shellfish can be realized, and the material does not contact with the water body and directly enters the shellfish mouth in the fostering box 500.

In a preferred embodiment, the shellfish farming-based water treatment system further comprises: an air compressor and a water pump;

the air compressor and the water pump are independently communicated with the elevator tube 200, respectively.

It means that the air compressor is communicated with the lifting pipe 200 and the water pump is communicated with the lifting pipe 200 independently, and they do not affect each other.

Preferably, the air compressor is communicated with the elevator tube 200 through a pipeline for charging air into the elevator tube 200, the water pump is communicated with the elevator tube 200 through a pipeline for charging water into the elevator tube 200, and the switches of water and air are controlled by the switch valve.

In a preferred embodiment, as shown in fig. 3, the shellfish farming-based water treatment system further comprises: a feed system;

the feeding system comprises a dosing tank 600, a storage tank 610, a pressure tank 620, a material conveying pipeline network and a central controller; the proportioning tank 600 is connected with a storage tank 610 through a lift pump 611, the storage tank 610 is connected with a conveying pipe network through a pressure pump 612 and a pressure tank 620, and the conveying pipe network is communicated with the feeding pipe 300; the central controller is respectively electrically connected with the dosing tank 600, the lift pump 611, the storage tank 610, the pressure pump 612 and the pressure tank 620 so as to control the dosing tank 600 to dose, control the lift pump 611 to lift the materials in the dosing tank 600 to the storage tank 610, and control the materials in the storage tank 610 to be conveyed into a pipeline of a material conveying pipe network through the pressure pump 612 and the pressure tank 620.

Through the controller respectively with batching pond 600, elevator pump 611, storage tank 610, force pump 612 and overhead tank 620 electricity are connected, control batching pond 600 and stir ingredients, and control elevator pump 611 promotes the batching in batching pond 600 to storage tank 610, in the batching that the realization was joined in marriage batching pond 600 passes through storage tank 610 and overhead tank 620 and carries the pipeline of defeated material pipeline net, thereby realize feeding the shellfish of fostering in the box 500, reach the high output zero release, automatic feeding has been realized to this kind of mode, it is more efficient than artificial breeding mode.

In a preferred embodiment, a water flow switch 710 and an electromagnetic valve 720 are arranged on the pipeline of the material conveying pipe network; the central controller is respectively electrically connected with the water flow switch 710 and the electromagnetic valve 720; the water flow switch 710 converts the water flow information of the pipeline of the material conveying pipe network into an electric signal and transmits the electric signal to the central controller, and the central controller controls the opening and closing of the electromagnetic valve 720 according to the electric signal.

The water flow switch 710 is a device in which a sensor is provided and which can detect water flow information on a pipe of a delivery pipe network. Convert water flow information into the electricity signal through water flow switch 710 and give central controller, central controller carries out the comparison with the transport foodstuff volume of presetting according to this electricity signal to open and close according to comparative result control solenoid valve 720, realize that the ration is regularly carried the foodstuff and is given the transport pipe network, and then carry again for the shellfish in the fostering box 500, make the feed process more automatic, more accurate, reduce the waste and the overfeeding of material.

According to another aspect of the present invention, there is provided a water treatment method for purifying a water body by using the above-mentioned shellfish culture-based water treatment system.

Preferably, the water treatment method comprises the steps of:

the lifting pipe 200 is inflated in the daytime, so that the lifting pipe 200 and the feeding pipe 300 can float on a preset water layer on the upper layer of the water body, and the shellfish in the fostering box 500 can filter and eat phytoplankton on the upper layer of the water body; water is injected into the lifting pipe 200 at night, so that the lifting pipe 200 and the feed pipe 300 can sink into the bottom layer of the water body to preset a water layer, and the shellfish in the fostering box 500 can filter and eat phytoplankton on the bottom layer of the water body.

The shellfish culture-based water treatment system purifies a water body by utilizing the water filtering function of shellfish, is designed according to the day and night vertical migration habit of phytoplankton, and realizes the rising and falling of the shellfish by inflating and filling water to the lifting pipe 200, so that the shellfish can fully contact with the floating phytoplankton to fully exert the water filtering function. In addition, the feeding mode is in zero contact with the water body, the water body cannot be polluted again, the eutrophic water body is purified more fully and effectively, and the purifying effect is good. The method is an efficient method for treating biomass organic wastewater, has the characteristics of large treatment capacity, low cost, easy operation, management saving and long effect compared with other biological treatment methods, and is suitable for non-point source polluted water bodies in different regions of south and north, such as large lakes, rivers, small and medium-sized reservoirs, fish ponds and the like.

A typical shellfish based water treatment system, as shown in fig. 4, comprises: a floating pipe 100, an elevator pipe 200 and a feeding pipe 300, which are closed at both ends; the floating pipe 100 is a PVC pipe, two fixing piles 110 are arranged at the bottom of the water body, and the two fixing piles 110 are respectively connected with two ends of the floating pipe 100 through connecting ropes 120, so that the floating pipe 100 can float at a preset water level of the water body; the lifting pipe 200 is used for introducing gas or water, and the feeding pipe 300 is used for conveying materials; the elevator tube 200 is bound to the feed tube 300; the lifting pipe 200 is provided with a buoyancy piece which can enable the lifting pipe 200 after water injection to just sink; the feeding pipe 300 is connected with the floating pipe 100 through two connecting rods 400, the end parts of the connecting rods 400 are respectively sleeved at the two ends of the feeding pipe 300 and the floating pipe 100 through anchor ears 410, lock hoops 420 are sleeved on the feeding pipes 300 and the floating pipe 100 at the two sides of the anchor ears 410, and the distance between the lock hoops 420 and the anchor ears 410 is 1cm; the lifting pipe 200 is communicated with an air compressor 800 and a water pump 900, so that the lifting pipe 200 and the feeding pipe 300 can swing up and down around the floating pipe 100 after the lifting pipe 200 is inflated or filled with water; the feeding pipe 300 is connected with the fostering box 500, and the feeding pipe 300 is connected with the fostering box 500 through a connecting pipe 510; the fostering box 500 is provided with a docking nozzle 520 for feeding the shellfish in the fostering box 500.

Inlet pipe 300 intercommunication feeding system, feeding system includes: the system comprises a dosing tank 600, a material storage tank 610, a pressure tank 620, a material conveying pipeline network and a central controller; the batching tank 600 is connected with a storage tank 610 through a lift pump 611, the storage tank 610 is connected with a material conveying pipe network through a pressure pump 612 and a pressure tank 620, and the material conveying pipe network is communicated with the feeding pipe 300; the central controller is respectively electrically connected with the proportioning tank 600, the lifting pump 611, the material storage tank 610, the pressure pump 612 and the pressure tank 620 so as to control the proportioning tank 600 to dose, control the lifting pump 611 to lift the materials in the proportioning tank 600 to the material storage tank 610, and control the materials in the material storage tank 610 to be conveyed into a pipeline of a material conveying pipe network through the pressure pump 612 and the pressure tank 620. A water flow switch 710 and an electromagnetic valve 720 are arranged on the pipeline of the material conveying pipe network; the central controller is respectively electrically connected with the water flow switch 710 and the electromagnetic valve 720; the water flow switch 710 converts the water flow information of the pipeline of the material conveying pipe network into an electric signal and transmits the electric signal to the central controller, and the central controller controls the opening and closing of the electromagnetic valve 720 according to the electric signal.

When in use, the floating pipe 100 takes a preset length value, and the two ends of the floating pipe 100 are sealed; the two fixing piles 110 are respectively connected with two ends of the floating pipe 100 through connecting ropes 120, the fixing piles 110 are fixed at preset positions of the bottom of the pool, the connecting ropes 120 are tightened to enable the floating pipe 100 to vertically float in the middle of a water layer, the lifting pipe 200 is tied with the feeding pipe 300, the two ends of the feeding pipe 300 and the floating pipe 100 are sleeved with the hoops 410, the feeding pipe 300 is connected with the two hoops 410 at the same end of the floating pipe 100 through the connecting rod 400, a plurality of nipple type inserting heads are reserved on the pipeline of the feeding pipe 300 and are convenient to host the box 500 according to the weight of shellfish on the host box 500, the floating balls 210 are tied on the lifting pipe 200 according to the weight of the shellfish on the host box 500, and the quantity of the floating balls 210 is controlled so that the buoyancy of the floating balls 210 just cannot support the lifting pipe 200 and sink to the bottom of the pool after the lifting pipe 200 is filled with water. When the shellfish breeding box 500 is fully loaded with shellfish, the lifting pipe 200 can be filled with water, the floating balls 210 which can support the shellfish can be bound, the bound floating balls 210 can be cut one by one, the operation is like a hand scale, the ball cutting is stopped immediately until the cut floating balls 210 just see that the lifting pipe 200 sinks, the debugging of the lifting device is completed, the shellfish can float back to the water surface as long as the lifting pipe 200 is inflated, and when the weight of the shellfish exceeds the debugged load value, the load value can be corrected by properly adding the floating balls 210 like weights. When the size of the floating pipe 100 is preset, the buoyancy of the floating pipe 100 is larger than that of the corresponding dominating elevator pipe 200.

The fish pond scheme for treating the V-type eutrophic water body by adopting the water treatment system based on shellfish culture comprises the following steps: the water is prepared according to the density of 3000 freshwater mussels per mu, v-type water can be degraded into four-type water within 3 months after the water temperature reaches more than 18 ℃, and the four-type water can be degraded into three-type water after 6 months, and the water is kept not to rebound.

While particular embodiments of the present invention have been illustrated and described, it would be obvious that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. A shellfish farming-based water treatment system comprising: the two ends of the floating pipe are sealed, and the lifting pipe and the feeding pipe are connected with the floating pipe;

the lifting pipe and/or the feeding pipe are/is provided with a buoyancy piece, and the buoyancy piece can enable the lifting pipe and the feeding pipe to just sink after water is injected;

the feeding pipe is connected with the fostering box and is used for feeding shellfish in the fostering box;

the feeding pipe is connected with the floating pipe through two connecting rods, and the end parts of the connecting rods are respectively sleeved at the two ends of the feeding pipe and the floating pipe through anchor ears;

the feeding pipes on the two sides of the hoop and the pipe body of the floating pipe are sleeved with locking hoops; the distance between the lock hoop and the hoop is 0.5-3cm;

floating balls are arranged on the lifting pipe and/or the feeding pipe;

the debugging method of the water treatment system based on shellfish culture comprises the following steps:

filling water into the lifting pipe, binding floating balls enough for supporting the shellfish, shearing the bound floating balls one by one after the shellfish is fully placed on the fostering box until the sheared floating balls just see that the lifting pipe sinks, immediately stopping shearing the balls, completing debugging, inflating the lifting pipe to float the shellfish to the back, and properly adding the floating balls to correct the load value when the weight of the shellfish grows to exceed the debugged load value.

2. The shellfish culture-based water treatment system according to claim 1, wherein two fixing piles are provided at the bottom of the water body, and the two fixing piles are connected to both ends of the floating pipe through connecting ropes, respectively, so that the floating pipe can float at a predetermined water level of the water body.

3. The shellfish based culture treatment system of claim 1, wherein said feed tube is connected to said habitat box by a connecting tube; the fostering box is internally provided with a butt joint mouth.

4. Shellfish culture based water treatment system according to any of claims 1-3, characterized in that it further comprises: an air compressor and a water pump;

5. A shellfish based culture water treatment system according to any of claims 1-3, further comprising: a feed system;

the feeding system comprises a proportioning tank, a material storage tank, a pressure tank, a material conveying pipe network and a central controller;

6. The shellfish culture-based water treatment system of claim 5, wherein the pipeline of said delivery network is provided with a water flow switch and an electromagnetic valve;

7. A water treatment method using the shellfish culture-based water treatment system described in any of claims 1-6.

8. The water treatment method as recited in claim 7, characterized in that the method comprises the steps of:

inflating the lifting pipe in daytime to enable the lifting pipe and the feeding pipe to float on a preset water layer on the upper layer of the water body, and shellfish in the fostering box can filter and eat phytoplankton on the upper layer of the water body; and injecting water into the lifting pipe at night to enable the lifting pipe and the feeding pipe to sink into a preset water layer at the bottom layer of the water body, so that the shellfish in the fostering box can filter phytoplankton at the bottom layer of the water body.