CN112093905A

CN112093905A - Hanging net type adsorption body for restoring eutrophic water body

Info

Publication number: CN112093905A
Application number: CN202010915611.4A
Authority: CN
Inventors: 闫山
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2020-12-18

Abstract

The invention discloses a suspended net type adsorption body for restoring eutrophic water body, belonging to the technical field of restoring polluted water body, wherein aquatic plants and suspended net adsorption devices which are distributed at intervals are arranged on a microorganism floating bed, the cooperation of the microorganism floating bed and the aquatic plants is more favorable for the attachment of microorganisms, the water body biological restoration effect is enhanced, meanwhile, the aquatic plants are favorable for the absorption of nitrogen and phosphorus of the water body, in addition, a plurality of suspended net adsorption devices are submerged in the water body, sinking balls are sunk into sludge to play a positioning role, an aeration pipe is aerated through aeration holes and is matched with a plurality of reagent release bags which are distributed at intervals, the dispersion of reagents is favorable under the aeration condition, the flocculation of water body micro particles is favorable, meanwhile, the aeration pipe is also provided with air suction holes facing one side of a fiber suspended net layer, the air suction hole is more favorable for harmful algae, other impurity particles and other harmful flocs in the water body to be collected on the fiber suspended net layer, effectively improving the restoration effect of the water body.

Description

Hanging net type adsorption body for restoring eutrophic water body

Technical Field

The invention relates to the technical field of polluted water body remediation, in particular to a suspended net type adsorption body for eutrophic water body remediation.

Background

Blue-green algae frequently caused by eutrophication of water bodies in China, the existing polluted water bodies of many rivers and lakes are very seriously polluted, the problem of water environment safety is increasingly highlighted, the living and residential environments of people are seriously threatened, the development of social economy is also influenced, the water pollution is urgently needed to be treated and repaired, the treatment of the water pollution is an effective way for solving the shortage of water resources and the environmental pollution, and the method has important significance for protecting the environment and realizing sustainable development.

The existing water body pollution remediation methods are many and mainly comprise a physical remediation technology, a chemical remediation technology and a microbial remediation technology. Among them, the flocculation precipitation method in the physical and chemical method has strong stability, small floor area and wide application. The key problem lies in that certain secondary pollution is caused by the selection of the flocculating agent, such as polyacrylamide, polyaluminium sulfate and the like which are mainstream in the market, and meanwhile, in the prior art, the flocculating agent is usually only manually scattered into a water body, the distribution uniformity of the flocculating agent is still to be improved, after flocculation, manual fishing is required, and the operation is complicated; the microorganism method mainly utilizes the microorganism to realize the purification to quality of water at the growth metabolism in aquatic, it has the expense low, secondary pollution advantage such as little, but there is being difficult to control, area big scheduling problem, secondly, the aerobic decomposition of microorganism makes the water in the oxygen consumption rate be greater than reoxygenation rate, dissolved oxygen is consumed completely easily, cause the water oxygen deficiency, thereby in the oxygen deficiency water, organic pollutant is by anaerobic decomposition, produce the black smelly class material of different grade type, present water black smelly, great influence has been caused to the environment.

Therefore, the suspended net type adsorption body for restoring the eutrophic water body is provided to effectively solve some problems in the prior art.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a suspended net type adsorption body for restoring eutrophic water body, aquatic plants and suspended net adsorption devices which are distributed at intervals are arranged on a microorganism floating bed, the microorganism floating bed is matched with the aquatic plants, the attachment of microorganisms is facilitated, the water body biological restoration effect is enhanced, meanwhile, the aquatic plants are beneficial to the absorption of nitrogen and phosphorus of the water body, in addition, a plurality of suspended net adsorption devices are submerged in the water body, sinking balls are sunk into sludge to play a positioning role, an aeration pipe is aerated through aeration holes and is matched with a plurality of reagent release bags distributed at intervals, the dispersion of reagents is facilitated under the aeration condition, the flocculation of micro particles of the water body is facilitated, meanwhile, the aeration pipe is also provided with air suction holes facing one side of a fiber suspended net layer, and the harmful algae, other impurity particles and other harmful flocs in the water body are more favorably collected on the fiber suspended net layer in the air suction process, effectively improving the restoration effect of the water body.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A suspended net type adsorption body for restoring eutrophic water body comprises a microorganism floating bed, wherein a plurality of aquatic plants and suspended net adsorption devices which are distributed at intervals are arranged on the microorganism floating bed, each suspended net adsorption device comprises a floating ball embedded on the microorganism floating bed, the upper end surface of the microorganism floating bed is provided with an arc embedding groove for embedding and installing the floating ball, the bottom end of the floating ball is fixedly connected with an aeration pipe, the top end of the aeration pipe is communicated with the inside of the floating ball, the top end part of the floating ball is connected with an external pipe connecting mechanism, the bottom end of the aeration pipe penetrates through the arc embedding groove and extends downwards to be fixedly connected with a sinking ball, the upper end wall of the aeration pipe is magnetically and drivingly connected with an upper limiting plate, the lower end wall of the aeration pipe is fixedly connected with a lower limiting plate positioned above the sinking ball, and a pair of fiber suspended net layers is arranged between the upper limiting plate and the lower limiting plate, the pair of fiber lifting net layers are symmetrically arranged at two sides of the aeration pipe, the upper end wall of the aeration pipe is fixedly connected with a limiting block positioned below the upper limiting plate, a plurality of air suction holes are distributed in the side wall of one side of the aeration pipe facing the pair of fiber lifting net layers, a plurality of aeration holes are distributed in the other two sides of the aeration pipe far away from the air suction holes, and a plurality of reagent releasing bags are distributed among the aeration holes.

Further, inlay on the bottom face of microorganism bed of floating and establish and install a plurality of ceramic fiber net, it is a plurality of ceramic fiber net is last to be adhered to there is the microbiota, the edge portion of microorganism bed of floating is equipped with the kickboard, and the microorganism bed of floating is floated on the surface of water under the auxiliary action of kickboard, and the microorganism that is attached to on the microorganism bed of floating bottom face adsorbs, decomposes the harmful substance that floats between the surface of water.

Furthermore, the fiber hanging net layer comprises a pair of elastic plastic sheets fixedly connected between the upper limiting plate and the lower limiting plate, an elastic woven net is arranged between the elastic plastic sheets, a plurality of fiber adsorption bags are embedded and connected on the elastic woven net, the elastic plastic sheets and the fiber adsorption bags are matched to adsorb and capture rich nutrient substances and impurity particles in water, and the elastic plastic sheets arranged on the edge parts of the two sides of the elastic woven net play a good limiting role on the elastic woven net.

Furthermore, the pair of elastic plastic sheets are made of elastic metal materials, the elastic woven mesh is of an arc-shaped shuttle-shaped structure, and both the elastic plastic sheets and the elastic woven mesh have elastic performance, so that after the lower end part of the whole suspended mesh adsorption device penetrates through the embedding cavity and extends into a water body, the upper limiting plate is driven by downward magnetism, and the outer end face of the fiber suspended mesh layer can expand outwards in an arc shape after the upper limiting plate slides downwards, so that the adsorption area of the fiber suspended mesh layer is effectively increased.

Furthermore, the fiber adsorption bag is of an inner convex bag-shaped structure connected to the elastic woven net in a woven mode, the outer end of the elastic woven net is provided with an adsorption port which is of an inner convex structure, and adsorption of more nutrient-rich substances is facilitated.

Furthermore, the reagent release bag comprises a net-shaped outer bag body fixedly connected to the outer end wall of the aeration pipe, a flocculant osmotic pump sheet is embedded and installed inside the outer bag body, one or two of a flocculant and an algaecide are filled in the flocculant osmotic pump sheet, the net-shaped outer bag body plays an adhesion role on the flocculant osmotic pump sheet, and after the reagent release bags are placed in water, the flocculant or the algaecide in the flocculant osmotic pump sheet is forced to be released due to the action of osmotic pressure, the algaecide effectively reduces the growth of algae, and the flocculant is favorable for flocculating algae particles and other tiny impurities in the water.

Furthermore, the external pipe connecting mechanism comprises an air duct connected with the top end parts of the floating balls, the other end of the air duct is externally connected with a three-way pipe, the other two ends of the three-way pipe are respectively communicated with an external aeration source and an air extraction source and are connected through a three-way type, under the control of the technicians in the field, aeration and air suction can be respectively carried out in the aeration pipe, on one hand, the method is favorable for enhancing the dissolved oxygen in water, on the other hand, when the flocculating agent or algaecide is released, the reagent is easy to disperse under the condition of aeration, thereby being beneficial to carrying out flocculation after decomposing larger harmful algae substances and other impurities in the water body, improving the flocculation agglomeration efficiency, when breathing in, utilize the air extraction effect of suction hole, be favorable to the flocculation thing in the water to carry out to fibre suspender layer department and be close to, elasticity woven mesh and a plurality of fibre adsorption bag adsorb the seizure to the flocculation thing.

Furthermore, the bottom end of the floating ball is fixedly connected with an electromagnet, the top end of the upper limiting plate is fixedly connected with a magnetic attraction plate matched with the electromagnet, the electromagnet is matched with the magnetic attraction plate, the upper limiting plate can move along the vertical direction of the aeration pipe easily, when the fiber lifting net layer works, the fiber lifting net layer is pressed downwards through the upper limiting plate to move downwards, the integral adsorption surface of the fiber lifting net layer is enlarged, when the fiber lifting net layer is disassembled and assembled, the magnetic attraction plate resets upwards, the size of the fiber lifting net layer is reduced, and therefore the whole lifting net adsorption device is easy to disassemble and assemble.

Furthermore, an air guide cavity communicated with the bottom end of the aeration pipe is formed in the sinking ball, a plurality of aeration rods communicated with the air guide cavity are distributed on the bottom end wall of the sinking ball, the sinking ball sinks into the sludge of the water body after the whole device is installed, and a one-way valve is installed on each aeration rod to improve the dissolved oxygen in the sludge through the aeration treatment matched with the sinking ball, so that the proliferation of microorganisms is facilitated.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme is characterized in that aquatic plants and suspended net adsorption devices which are distributed at intervals are arranged on a microorganism floating bed, the microorganism floating bed is matched with the aquatic plants, so that the attachment of microorganisms is facilitated, the bioremediation effect of a water body is enhanced, meanwhile, the aquatic plants are beneficial to the absorption of nitrogen and phosphorus of the water body, in addition, a plurality of suspended net adsorption devices are submerged in the water body, sinking balls sink into sludge to play a positioning role, an aeration pipe is aerated through aeration holes and is matched with a plurality of reagent release bags distributed at intervals, the uniform dispersion of reagents is facilitated under the aeration condition, so that the flocculation speed of water body tiny particles is accelerated, meanwhile, an air suction hole facing one side of a fiber suspended net layer is also arranged on the aeration pipe, harmful flocculates such as harmful algae and other impurity particles in the water body are more favorably collected on the fiber suspended net layer in the air suction process, and the remediation effect on the water body is effectively improved, manual fishing is not needed.

(2) The bottom end face of the microbial floating bed is embedded with a plurality of ceramic fiber nets, microbial groups are attached to the ceramic fiber nets, floating plates are arranged on the edge portions of the microbial floating bed, the microbial floating bed floats on the water surface under the auxiliary action of the floating plates, and the microbes attached to the bottom end face of the microbial floating bed adsorb and decompose harmful substances floating between the water surface.

(3) The piece is moulded to fibre suspender mesh layer includes a pair of elasticity of fixed connection between last limiting plate and lower limiting plate, and a pair of elasticity is moulded and is equipped with the elasticity mesh grid between the piece, and the net is woven to the elasticity inlays on establishing and is connected with a plurality of fibre absorption bags, and the cooperation of piece and a plurality of fibre absorption bags is moulded to the elasticity adsorbs the seizure to rich nutrient substance and impurity particulate matter in the water body, and sets up and mould the piece then to play fine limiting displacement to the elasticity mesh grid in the elasticity of the both sides edge portion of elasticity mesh grid.

(4) A pair of elasticity is moulded the piece and is made by elastic metal material, elasticity woven mesh is arc fusiform structure, elasticity is moulded piece and elasticity woven mesh and all has elastic performance, so after whole hanger net adsorption equipment's lower tip runs through to inlay establishes the chamber and extend to in the water body, through spacing board on the downward magnetic drive, go up the spacing board and can make the outside arc expansion of outer terminal surface on fibre hanger net layer after the lapse, effectively increase fibre hanger net layer's adsorption area, fibre absorption bag is for weaving the interior convex saccular structure of connecting on elasticity woven mesh, elasticity woven mesh's outer end is equipped with the absorption mouth, set up interior convex structure, be favorable to adsorbing more rich nutrient substance.

(5) The reagent release bag comprises a net-shaped outer bag body fixedly connected to the outer end wall of the aeration pipe, a flocculating agent osmotic pump sheet is embedded and installed in the outer bag body, a flocculating agent is filled in the flocculating agent osmotic pump sheet, one or two of algaecides are removed, the net-shaped outer bag body plays an adhesion role on the flocculating agent osmotic pump sheet, after the reagent release bags are placed in water, the flocculating agent or the algaecides in the flocculating agent osmotic pump sheet are forced to be released due to the effect of osmotic pressure, the algaecides effectively reduce the growth of algae, and the flocculating agent is favorable for flocculating algae particles and other tiny impurities in the water.

(6) The external pipe connecting mechanism comprises an air duct connected with the top end parts of the floating balls, the other end of the air duct is externally connected with a three-way pipe, the other two ends of the three-way pipe are respectively communicated with an external aeration source and an air suction source and are connected through a three-way valve, under the control of the technicians in the field, aeration and air suction can be respectively carried out in the aeration pipe, on one hand, the method is favorable for enhancing the dissolved oxygen in water, on the other hand, when the flocculating agent or algaecide is released, the reagent is easy to disperse under the condition of aeration, thereby being beneficial to carrying out flocculation after decomposing larger harmful algae substances and other impurities in the water body, improving the flocculation agglomeration efficiency, when breathing in, utilize the air extraction effect of suction hole, be favorable to the flocculation thing in the water to carry out to fibre suspender layer department and be close to, elasticity woven mesh and a plurality of fibre adsorption bag adsorb the seizure to the flocculation thing.

(7) The bottom portion fixedly connected with electro-magnet of floater, the top portion fixedly connected with and the electro-magnet assorted magnetism of upper limit plate inhale the board, the cooperation of electro-magnet and magnetism inhale the board easily realizes that the upper limit plate can follow the vertical direction of aeration pipe and move, when the fibre hangs the stratum reticulare and carries out work, press down fibre hangs the stratum reticulare downstream through the upper limit plate, enlarge the whole adsorption plane on fibre hangs the stratum reticulare, when in the dismouting, magnetism inhales the board and upwards resets, reduce the volume on fibre hangs the stratum reticulare, thereby the dismouting of easy whole hanging net adsorption equipment.

(8) The air guide cavity communicated with the bottom end of the aeration pipe is formed in the sinking ball, a plurality of aeration rods communicated with the air guide cavity are distributed on the bottom end wall of the sinking ball, the sinking ball sinks into sludge in a water body after the whole device is installed, and the aeration rods are provided with one-way valves for aeration treatment through the cooperation of the aeration rods and the sinking ball, so that the dissolved oxygen in the sludge is improved, and the proliferation of microorganisms is facilitated.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the invention at a sling suction device;

FIG. 3 is a partial perspective view of the junction of the aeration tube and the reagent releasing capsule of the present invention;

FIG. 4 is a partial perspective view of the limiting hanger mesh layer of the present invention;

FIG. 5 is a perspective view of the upper fiberboard after pressing down and expanding the fibrous web layer outwardly in accordance with the present invention;

fig. 6 is a partial perspective view of the fibrous web layer of the present invention after it has been expanded outwardly.

The reference numbers in the figures illustrate:

1 microorganism floating bed, 2 aquatic plants, 3 floating balls, 4 aeration pipes, 401 limiting blocks, 402 aeration holes, 403 air suction holes, 5 sinking balls, 501 aeration rods, 6 upper limiting plates, 7 lower limiting plates, 8 fiber hanging net layers, 801 elastic plastic sheets, 802 elastic woven nets, 803 fiber adsorption bags, 9 electromagnets, 10 magnetic adsorption plates, 11 air guide pipes, 12 three-way pipes and 13 reagent release bags.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of 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" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1, a suspended net type adsorbent for restoring eutrophic water body includes a microbial floating bed 1, a plurality of aquatic plants 2 and suspended net adsorption devices are arranged on the microbial floating bed 1 at intervals, a plurality of ceramic fiber nets are embedded and mounted on the bottom end surface of the microbial floating bed 1, a microbial population is attached to the ceramic fiber nets, a floating plate is arranged on the edge portion of the microbial floating bed 1, the microbial floating bed 1 floats on the water surface under the auxiliary action of the floating plate, and harmful substances floating between the water surfaces are adsorbed and decomposed by microbes attached to the bottom end surface of the microbial floating bed 1.

Referring to fig. 1-2, the net-suspended adsorption apparatus includes a floating ball 3 embedded on a microorganism floating bed 1, an upper end surface of the microorganism floating bed 1 is provided with an arc embedding groove for embedding and installing the floating ball 3, a bottom end of the floating ball 3 is fixedly connected with an aeration pipe 4, a top end of the aeration pipe 4 is communicated with the inside of the floating ball 3, a top end portion of the floating ball 3 is connected with an external pipe-connecting mechanism, a bottom end of the aeration pipe 4 penetrates through the arc embedding groove and extends downwards to be fixedly connected with a sinking ball 5, an upper end wall of the aeration pipe 4 is magnetically and drivingly connected with an upper limiting plate 6, a lower limiting plate 7 positioned above the sinking ball 5 is fixedly connected on a lower end wall of the aeration pipe 4, a pair of fiber net layers 8 is arranged between the upper limiting plate 6 and the lower limiting plate 7, the pair of fiber net layers 8 are symmetrically arranged at two sides of the aeration pipe 4, a bottom end portion of the floating ball 3 is fixedly connected with an electromagnet 9, the cooperation of electro-magnet 9 and magnetism board 10 easily realizes that spacing board 6 can move along the vertical direction of aeration pipe 4, when fibre hangs the net layer 8 and carries out work, through last spacing board 6 downward pressure move fibre hangs net layer 8 downstream, enlarges the whole adsorption plane of fibre hangs net layer 8, when the dismouting, magnetism board 10 upwards resets, reduces the volume of fibre hangs net layer 8 to easily whole hanging net adsorption equipment's dismouting, and fibre hangs net layer 8 and is used for adsorbing the seizure processing to the tiny impurity granule in the water.

Referring to fig. 3, the upper end wall of the aeration pipe 4 is fixedly connected with a limiting block 401 located below the upper limiting plate 6, the fiber block 401 is used for positioning the downward-driven 6 to realize the outward expansion and positioning of the fiber adsorption mesh sling 8, a plurality of air suction holes 403 are distributed on the side wall of one side of the aeration pipe 4 facing the pair of fiber mesh slings 8, a plurality of aeration holes 402 are distributed on the other two sides of the aeration pipe 4 away from the air suction holes 403, a plurality of reagent release bags 13 are distributed between the plurality of aeration holes 402, waterproof air-permeable films are respectively mounted at the aeration holes 402 and the air suction holes 403, and air passage check valves are also mounted at the aeration holes 402 for aeration treatment, the air suction holes 403 are used for air suction treatment, the plurality of reagent release bags 13 are distributed between the plurality of aeration holes 402 at intervals, the plurality of reagent release bags 13 are located at the inner side of the joint of the pair of fiber mesh slings 8, which is beneficial for the reagent to diffuse outward, the reagent releasing bag 13 comprises a net-shaped outer bag body fixedly connected to the outer end wall of the aeration pipe 4, a flocculating agent osmotic pump sheet is embedded and installed inside the net-shaped outer bag body, one or two of flocculating agents and algaecides are filled in the flocculating agent osmotic pump sheet, the flocculating agents are microbial flocculating agents, for example, NOC-1 flocculating agents in the prior art are adopted, the algaecides are biological algaecides, the net-shaped outer bag body has an adhesion effect on the flocculating agent osmotic pump sheet, after the reagent releasing bags 13 are placed in water, the flocculating agents or the algaecides in the flocculating agent osmotic pump sheet are forced to be released due to the effect of osmotic pressure, and under the condition of aeration, the reagent is favorably dispersed, the algaecides effectively reduce the algae growth, and the flocculating agents are favorably flocculated on algae particles and other micro impurities in the water.

Referring to fig. 2 and 4-6, the fiber mesh sling layer 8 includes a pair of elastic plastic sheets 801 fixedly connected between the upper limiting plate 6 and the lower limiting plate 7, an elastic woven mesh 802 is disposed between the pair of elastic plastic sheets 801, a plurality of fiber absorption bags 803 are embedded and connected on the elastic woven mesh 802, the elastic plastic sheets 801 and the fiber absorption bags 803 cooperate to absorb and capture nutrient-rich substances and foreign particles in water, the elastic plastic sheets 801 disposed on both side edges of the elastic woven mesh 802 have a good limiting function on the elastic woven mesh 802, the pair of elastic plastic sheets 801 are made of elastic metal material, the elastic woven mesh 802 is an arc-shaped shuttle structure, and both the elastic plastic sheets 801 and the elastic woven mesh 802 have elastic properties, so that when the lower end of the entire mesh sling adsorption device penetrates through the embedding cavity and extends into water, the upper limiting plate 6 is driven by downward magnetism, go up limiting plate 6 and can make the outside arc expansion of outer terminal surface of fibre suspender layer 8 after the lapse, effectively increase fibre suspender layer 8's adsorption area, fibre adsorption bag 803 is for weaving the interior convex saccular structure of connecting on elasticity mesh grid 802, the outer end of elasticity mesh grid 802 is equipped with the absorption mouth, set up to interior convex structure, be favorable to adsorbing more eutrophic flocculation material, after suction opening 403 works, more be favorable to moving flocculation material in the water to fibre suspender layer 8 one side, it is here that it needs to supply, a plurality of fibre pile that distribute on the outer wall of aeration pipe 4, the fibre pile flutters in the water, when the aeration, be favorable to being attached to of bubble to the diffusion.

Referring to fig. 1, the external pipe connecting mechanism includes an air duct 11 connected to the top end of the plurality of floating balls 3, the other end of the air duct 11 is externally connected with a three-way pipe 12, the other two ends of the three-way pipe 12 are respectively communicated with an external aeration source and an air suction source, and are connected through a three-way connection, under the control of the technicians in the field, aeration and air suction can be respectively carried out in the aeration pipe 4, when in aeration, on one hand, the dissolved oxygen in water is favorably enhanced, and on the other hand, when the flocculating agent or algaecide is released, the reagent is easy to disperse under the condition of aeration, thereby being beneficial to carrying out flocculation after decomposing larger harmful algae substances and other impurities in the water body, improving the flocculation agglomeration efficiency, during air suction, the air suction effect of the air suction holes 403 is utilized to facilitate the flocs in the water to approach the fiber mesh layer 8, and the elastic woven mesh 802 and the plurality of fiber adsorption pockets 803 adsorb and capture the flocs.

In addition, the inside of the sinking ball 5 is provided with an air guide cavity communicated with the bottom end of the aeration pipe 4, a plurality of aeration rods 501 communicated with the air guide cavity are distributed on the bottom end wall of the sinking ball 5, after the whole device is installed, the sinking ball 5 sinks into the sludge of the water body, and the aeration rods 501 are provided with one-way valves for aeration treatment through the cooperation of the aeration rods 501 and the sinking ball 5, so that the dissolved oxygen in the sludge is improved, and the proliferation of microorganisms is facilitated.

In the invention, the aquatic plants 2 and the suspended net adsorption devices which are distributed at intervals are arranged on the microorganism floating bed 1, the bottom end face of the microorganism floating bed 1 is attached with microorganism groups, the microorganism floating bed 1 is matched with the aquatic plants 2, the root systems of the aquatic plants 2 are arranged in water body, which is more beneficial to the attachment of microorganisms and enhances the bioremediation effect of the water body, meanwhile, the aquatic plants 2 are beneficial to the absorption of nitrogen and phosphorus of the water body, in addition, the lower ends of a plurality of suspended net adsorption devices are submerged in the water body, the sinking ball 5 at the bottom end of the device is sunk into sludge to play a positioning role, the aeration pipe 4 is aerated through the aeration hole 402 and is matched with a plurality of reagent release bags 13 which are distributed at intervals, which is beneficial to the dispersion of reagents under the aeration condition and effectively accelerates the flocculation speed, meanwhile, the aeration pipe 4 is also provided with the air suction hole 403 which faces one side of the fiber suspended net layer 8, is more beneficial to catching and collecting flocs such as harmful algae and other impurity particles in the water body on the fiber mesh layer 8, and effectively improves the repairing effect on the water body.

The components used in the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. A suspended net type adsorbent for restoring eutrophic water body comprises a microorganism floating bed (1), and is characterized in that: the microorganism floating bed (1) is provided with a plurality of aquatic plants (2) and a hanging net adsorption device which are distributed at intervals, the hanging net adsorption device comprises a floating ball (3) embedded on the microorganism floating bed (1), the upper end face of the microorganism floating bed (1) is provided with a groove for embedding and installing the floating ball (3) in an arc shape, the bottom end of the floating ball (3) is fixedly connected with an aeration pipe (4), the top end of the aeration pipe (4) is communicated with the inside of the floating ball (3), the top end part of the floating ball (3) is connected with an external pipe mechanism, the bottom end of the aeration pipe (4) penetrates through the arc shape embedding groove and extends downwards to be fixedly connected with a sinking ball (5), the upper end wall of the aeration pipe (4) is connected with an upper limiting plate (6) in a magnetic driving manner, the lower end wall of the aeration pipe (4) is fixedly connected with a lower limiting plate (7) positioned above the sinking ball (5), a pair of fiber lifting net layers (8) is arranged between the upper limiting plate (6) and the lower limiting plate (7), the fiber lifting net layers (8) are symmetrically arranged at two sides of the aeration pipe (4), the upper end wall of the aeration pipe (4) is fixedly connected with a limiting block (401) positioned below the upper limiting plate (6), a plurality of air suction holes (403) are distributed on the side wall of one side, facing the pair of fiber lifting net layers (8), of the aeration pipe (4), a plurality of aeration holes (402) are uniformly distributed on the other two surfaces, far away from the air suction holes (403), of the aeration pipe (4), and a plurality of reagent releasing bags (13) are distributed between the aeration holes (402).

2. The suspended net type adsorption body for eutrophic water restoration according to claim 1, wherein: the bottom end face of the microbial floating bed (1) is embedded with a plurality of ceramic fiber nets, the ceramic fiber nets are attached with microbial communities, and the edge part of the microbial floating bed (1) is provided with a floating plate.

3. The suspended net type adsorption body for eutrophic water restoration according to claim 1, wherein: the fiber suspended net layer (8) comprises a pair of elastic plastic sheets (801) fixedly connected between an upper limiting plate (6) and a lower limiting plate (7), an elastic woven net (802) is arranged between the pair of elastic plastic sheets (801), and a plurality of fiber adsorption bags (803) are embedded and connected on the elastic woven net (802).

4. The suspended net type adsorption body for eutrophic water restoration according to claim 3, wherein: the pair of elastic plastic sheets (801) are both made of elastic metal materials, and the elastic woven mesh (802) is of an arc shuttle-shaped structure.

5. The suspended net type adsorption body for eutrophic water restoration according to claim 4, wherein: the fiber adsorption bag (803) is an inward convex bag-shaped structure connected to the elastic woven mesh (802) in a woven mode, and an adsorption opening is formed in the outer end of the elastic woven mesh (802).

6. The suspended net type adsorption body for eutrophic water restoration according to claim 1, wherein: the reagent release bag (13) comprises a net-shaped outer bag body fixedly connected to the outer end wall of the aeration pipe (4), a flocculant osmotic pump sheet is embedded and installed in the outer bag body, and one or two of a flocculant and an algaecide are filled in the flocculant osmotic pump sheet.

7. The suspended net type adsorption body for eutrophic water restoration according to claim 1, wherein: the external pipe connecting mechanism comprises an air guide pipe (11) connected to the top end portions of the floating balls (3), the other end of the air guide pipe (11) is externally connected with a three-way pipe (12), and the other two ends of the three-way pipe (12) are respectively communicated with an external aeration source and an air suction source.

8. The suspended net type adsorption body for eutrophic water restoration according to claim 1, wherein: the bottom end of the floating ball (3) is fixedly connected with an electromagnet (9), and the top end of the upper limiting plate (6) is fixedly connected with a magnetic suction plate (10) matched with the electromagnet (9).

9. The suspended net type adsorption body for eutrophic water restoration according to claim 1, wherein: an air guide cavity communicated with the bottom end of the aeration pipe (4) is formed in the sinking ball (5), a plurality of aeration rods (501) communicated with the air guide cavity are distributed on the bottom end wall of the sinking ball (5), and one-way valves are mounted on the aeration rods (501).