CN111592178B

CN111592178B - Treatment method of near-shore water body blue-green algae comprehensive treatment device

Info

Publication number: CN111592178B
Application number: CN202010410491.2A
Authority: CN
Inventors: 陈旭清; 张铮惠
Original assignee: Wuxi Cyanobacteria Control Office
Current assignee: Wuxi River And Lake Treatment And Water Resources Management Center
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2022-06-03
Anticipated expiration: 2040-05-15
Also published as: CN111592178A

Abstract

The invention discloses a treatment method of a near-shore water body blue-green algae comprehensive treatment device, relates to the technical field of blue-green algae treatment devices and treatment methods thereof, and aims to solve the problems that the existing treatment method and treatment device have the defects of temporary solution and permanent solution and cannot effectively inhibit blue-green algae in natural water bodies in an early stage. Be provided with salvage ship and blue alga automatic collection mechanism on the river, and salvage ship is located one side of blue alga automatic collection mechanism, one side of river is provided with loading system, loading system is including algae removal trap pond and algae removal trap, and the algae removal trap is located the inside in algae removal trap pond, one side of loading system is provided with the air supporting pond, one side in air supporting pond is provided with centrifugal dehydration mechanism, one side of loading system, air supporting pond and centrifugal dehydration mechanism is provided with the sedimentation tank and purifies the wetland, and the sedimentation tank is located one side of purifying the wetland.

Description

Treatment method of near-shore water body blue-green algae comprehensive treatment device

Technical Field

The invention relates to the technical field of processing methods of blue algae processing devices, in particular to a processing method of a near-shore water body blue algae comprehensive processing device.

Background

At present, lake eutrophication and cyanobacterial bloom become a global important environmental problem with the continuous development of social economy. Especially in the large background of global warming, eutrophic lakes are often subjected to water bloom, resulting in a decrease in water transparency and dissolved oxygen, and often accompanied by the generation of toxins and odorous substances, causing deterioration in water quality and destruction of water ecosystem. The water drinking problem of human beings is endangered by the outbreak of the blue algae, and the work of controlling and treating the blue algae bloom is more and more severe. At present, the existing technology is difficult to effectively inhibit the blue algae outbreak, and the blue algae can be collected and disposed only after the blue algae outbreak. The conventional blue algae treatment method mainly comprises the following steps: mechanically fishing or putting a flocculating agent into the blue algae water for separation, and enabling the formed algae residue pipe to pass through a disc spiral filter and other filtering equipment to form algae mud. However, the above treatment methods or treatment apparatuses have the defects of temporary solution and non-permanent treatment, and cannot effectively inhibit the blue-green algae in the natural water body in an early stage, so that a treatment method of a comprehensive treatment apparatus for the blue-green algae in the near-shore water body is urgently needed in the market to solve the problems.

Disclosure of Invention

The invention aims to provide a treatment method of a near-shore water body blue-green algae comprehensive treatment device, and aims to solve the problems that the existing treatment method or treatment device proposed in the background technology has the defects of temporary solution and permanent solution, and cannot effectively inhibit the blue-green algae in the natural water body in an early stage.

In order to achieve the purpose, the invention provides the following technical scheme: a treatment method of a comprehensive treatment device for blue algae in a near-shore water body comprises the following steps:

step 1: collecting blue algae in a water body near the bank of the river, and adopting different collecting devices according to different numbers and positions of the blue algae, and adopting an automatic blue algae collecting mechanism when the number of the blue algae is small; when the number of the blue algae is large, collecting the blue algae by adopting a salvage ship mode;

step 2: the pseudo vacuole, the colony structure and the cell structure of the blue algae collected by the salvage ship and the automatic blue algae collecting mechanism are damaged by the pressurizing mechanism, the reproductive capacity of the blue algae is reduced, the algae-laden water separation and treatment are facilitated, the pressure range is 0.5-0.8MPa, the height of the algae collecting hopper is adjusted by the extension and retraction of the hydraulic telescopic cylinder to be lower than the water surface by 1mm during use, water is collected to the algae collecting hopper to generate rotational flow, and meanwhile, the negative pressure plug flow mechanism generates negative pressure, so that the destruction of the pseudo vacuole, the colony structure and the cell structure of the blue algae is realized, the sucked air is discharged through the air outlet pipe, and the algae water is discharged into the air floating pond through the algae collecting pipe;

and step 3: the algae water is subjected to air flotation separation in the air flotation tank, and then enters the centrifugal dehydration mechanism for centrifugal separation;

the method comprises the following steps: discharging the separated tail water into a sedimentation tank, adopting a naturally settled and improved harmless flocculating agent to settle the blue algae, additionally arranging a heightening tank above the sedimentation tank of the sedimentation tank so as to increase the depth of the sedimentation tank, wherein the depth of the sedimentation tank is 1-5m, so that the holding capacity can be conveniently controlled according to the amount of the incoming algae, and the supernatant water of the sedimentation tank overflows into a bank wetland for purification treatment;

and 5: tail water treated by the wetland is discharged into a near-shore water body after passing the conventional water quality inspection, the wetland consists of a water inlet, emergent aquatic plants planted at the edge, submerged plants planted at the bottom of water and a water outlet, and the deepest depth of the wetland is not more than 1 meter;

the device comprises a river, a salvage ship, a blue algae automatic collection mechanism, a pressurizing mechanism, an algae killing trap, a sedimentation tank, a purification wetland, an annular floating block, a solar panel, a storage battery, a filter cavity, a filter plate, a filter bag limiting block, a filter bag, a submersible pump and a water outlet pipe, wherein the salvage ship and the blue algae automatic collection mechanism are arranged on the river; the pressurizing mechanism comprises an algae killing trap and an algae killing trap pool, the algae killing trap is positioned inside the algae killing trap pool, an algae collecting hopper is arranged at the upper end of the algae killing trap, an algae collecting pipe is arranged below the algae collecting hopper, a hydraulic telescopic cylinder is arranged inside the algae killing trap pool, a supporting seat is arranged above the hydraulic telescopic cylinder, the lower end of the algae collecting pipe penetrates through the supporting seat and extends to the outside of the algae killing trap pool, a negative pressure plug flow mechanism is arranged above the supporting seat, the air inlet end of the negative pressure plug flow mechanism is hermetically connected with the algae collecting pipe, the air outlet end of the negative pressure plug flow mechanism is provided with an air outlet pipe, and the air outlet pipe extends to the outside of the algae killing trap pool; the sedimentation tank includes gunbarrel, algae mud pipe, algae sediment pipe, deposits the outlet pipe and increases the jar, the algae mud pipe is located the gunbarrel and increases the one side of jar, and algae sediment pipe is located the gunbarrel and increases the opposite side of jar, it is located the lower extreme of gunbarrel to deposit the outlet pipe, increase jar and gunbarrel movable sealing connection.

Preferably, the annular floating block is located the upper end of blue alga automatic collection mechanism, the top fixed mounting of annular floating block has solar panel, and solar panel's below installs the battery, the intermediate position department of annular floating block is fixed with the filter chamber, the filter plate is located the top of the inside of filter chamber, and the up end of filter plate is less than the up end of annular floating block, the double-phase of filter chamber is provided with the filter bag stopper to the inner wall, the filter bag is located the inside intermediate position department of filter chamber, and the diameter of filter bag upper end is greater than distance between two filter bag stoppers, the immersible pump is located the below of filter bag, and the play water outlet end fixed mounting of immersible pump has the outlet pipe, the one end of outlet pipe runs through filter chamber and annular floating block and extends to the outside of annular floating block, solar panel, battery and the equal electric connection of immersible pump.

Preferably, a deck is arranged on the salvage ship, a cockpit is arranged above the deck, a water storage cabin is arranged inside the lower end of the salvage ship, a blue algae cabin, an oil containment boom rolling cabin and an oil containment boom guide groove are arranged between the deck and the water storage cabin, the oil containment boom rolling cabin is communicated with the oil containment boom guide groove, an oil containment boom rolling mechanism is arranged inside the oil containment boom rolling cabin, and an oil containment boom is arranged inside the oil containment boom rolling cabin and the oil containment boom guide groove.

Preferably, the both ends of salvage ship one side all are provided with the horn plate, and the horn plate is symmetrical about the perpendicular center line of salvage ship, the one end of salvage ship is provided with into the algae groove, the one side of advancing the algae groove is provided with installs spacing door, and sliding connection between spacing door and the salvage ship, the both sides of spacing door upper end all are provided with spacing door kicking block, and spacing door kicking block and spacing door fixed connection, the fixed solid fixed ring that is provided with oil fence in one side of spacing door, and the one end of oil fence guiding groove is located the opposite side of spacing door, the one end and the solid fixed ring swing joint of oil fence.

Preferably, the blue algae collection by the blue algae automatic collection mechanism in the step 1 specifically comprises: the solar panel of blue alga automatic collection mechanism upper end is gathered sunshine, convert to the electric energy and transmit and save for the battery and provide the electric energy for the drive immersible pump, because the buoyancy blue alga automatic collection mechanism of annular floating block floats on the surface of water, when the wind blows and produces the water wave and beat annular floating block on, float on the blue alga on water surface is driven by the water wave and is beaten annular floating block, the blue alga flows on the filter plate, the filter plate filters the rubbish of aquatic, the blue alga passes through the filter plate and flows down, flow into the filter bag this moment, the filtration blue alga through the filter bag remains inside the filter bag, water is discharged from the filter chamber inside through the twitch of immersible pump, detachable discharge filter plate during the collection, it can to take out the filter bag again.

Preferably, the collecting of the blue algae by the salvage ship in the step 1 specifically comprises: the method comprises the steps of pulling out an oil containment boom which is wound outside an oil containment boom winding mechanism, surrounding a large number of blue-green algae, fastening one end of the oil containment boom with an oil containment boom fixing ring, and automatically adjusting the height of a limiting door along with the height of a water level by starting the oil containment boom winding mechanism, wherein the floating door of the limiting door is provided with a limiting door floating block, the oil containment boom winding mechanism is started to slowly wind the oil containment boom, and when the oil containment boom is wound, the blue-green algae floating on the water surface is pushed to an algae inlet groove, so that the blue-green algae enters the inside of a blue-green algae cabin along with water flow, and a salvage ship conveys collected blue-green algae to the inside of an algae killing trap pool through a hose.

Preferably, the flocculant in the step 4 is one or more of polyaluminium chloride, Polyacrylamide (PAM) and modified clay.

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

1. according to the invention, the automatic blue algae collection mechanism is arranged to automatically collect blue algae, so that the personnel consumption in blue algae fishing is reduced, automatic collection can be realized when the number of blue algae is small, and the internal pressure can be maintained in a manner of converting solar energy into electric energy, so that the suction force of the device on floating blue algae is increased, clean energy is realized, the consumption of electric energy is reduced, the blue algae can be collected more conveniently and rapidly, the device can be arranged in a river for a long time, and the problems that the existing treatment method or treatment device has the defects of temporary solution and permanent solution, and cannot effectively inhibit the blue algae in the natural water body in an early stage are solved.

2. According to the invention, the fishing boat is arranged to push the blue-green algae to flow to the fishing boat through contraction of the oil containment boom, and the height of the limit door is automatically adjusted through the limit door floating block, so that the blue-green algae collection in the current level can be better matched, more blue-green algae can be collected, and the blue-green algae collection efficiency is greatly improved.

3. The invention can destroy the pseudo vacuole, the colony structure and the cell structure of the blue algae by the pressurizing mechanism, reduce the reproductive capacity of the blue algae and simultaneously facilitate the separation and disposal of the blue algae.

4. The sedimentation tank capable of increasing the height is arranged, so that the equipment can adapt to the requirements of different treatment capacities.

5. The invention treats the tail water through the wetland, and discharges the tail water into the near-shore water body after passing the conventional water quality inspection, thereby protecting the health of the water body and reducing the secondary pollution to the environment.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of an automatic blue algae collecting mechanism of the present invention;

FIG. 3 is a schematic view of the configuration of the fishing vessel of the present invention;

FIG. 4 is a sectional view taken in the direction A-A of the fishing vessel of the present invention;

FIG. 5 is a side view of the fishing vessel of the present invention;

FIG. 6 is a schematic view of the pressing mechanism of the present invention;

FIG. 7 is a schematic view of the structure of the sedimentation tank of the present invention.

In the figure: 1. a river; 2. fishing the ship; 3. a blue algae automatic collecting mechanism; 4. a pressurizing mechanism; 5. killing algae traps; 6. an air floatation tank; 7. a centrifugal dehydration mechanism; 8. a sedimentation tank; 9. purifying the wetland; 10. an annular floating block; 11. a solar panel; 12. a storage battery; 13. a filter chamber; 14. filtering the plate; 15. a filter bag limiting block; 16. a filter bag; 17. a submersible pump; 18. a water outlet pipe; 19. a deck; 20. a cockpit; 21. a water storage compartment; 22. a blue algae cabin; 23. an oil containment boom rolling cabin; 24. a horn plate; 25. an oil containment boom winding mechanism; 26. an oil containment boom guide groove; 27. an oil containment boom; 28. an oil containment boom fixing ring; 29. entering an algae trough; 30. a limit door; 31. a limit door floating block; 32. an algae removal trap pool; 33. a hydraulic telescopic cylinder; 34. a supporting seat; 35. collecting algae buckets; 36. an algae collecting pipe; 37. a negative pressure plug flow mechanism; 38. an air outlet pipe; 39. a settling tank; 40. algae mud pipes; 41. an algae residue pipe; 42. a sedimentation water outlet pipe; 43. a heightening tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1:

the process is that pseudo-vacuoles, colony structures and cell structures of the collected blue-green algae are damaged by the pressurizing mechanism 4, the reproductive capacity of the blue-green algae is reduced, the algae-green algae can be conveniently separated and treated, the pressure range is 0.5, the height of the algae collecting hopper 35 is adjusted by the extension and retraction of the hydraulic telescopic cylinder 33 during use and is 1mm lower than the water surface, water is collected to the algae collecting hopper 35 to generate rotational flow, and the negative pressure plug flow mechanism 37 generates negative pressure, so that the damage of the pseudo-vacuoles, the colony structures and the cell structures of the blue-green algae is realized, the sucked air is discharged through the air outlet pipe 38, and the algae-green algae water is discharged into the air flotation tank 6 through the algae collecting pipe 36; the air flotation tank 6 carries out air flotation separation on the algae water, and the algae water enters the centrifugal dehydration mechanism 7 again for centrifugal separation; discharging the separated tail water into a sedimentation tank 8, adopting a naturally settled and improved harmless flocculating agent to precipitate blue algae, and overflowing the supernatant water of the sedimentation tank into a bank wetland for purification treatment; the tail water after being treated by the wetland is discharged into a near-shore water body after passing the conventional water quality inspection

Set up 5 sampling points near the bright and beautiful garden of calf shankou algae trap job site: and 4# lighthouse comparison and 5# buoy comparison are carried out at positions 5m outside the 1# water inlet, the 2# water outlet and the 3# water outlet. The distance between the 4# lighthouse control point and the water outlet is about 300m, and the lighthouse control point enters a beam river channel water area downstream; the # 5 buoy control was in open upstream water. The items analyzed have water body conventional physicochemical indexes: water temperature, pH, dissolved oxygen, Total Nitrogen (TN), ammonia nitrogen (NH3-N), nitrate nitrogen (NO3-N), nitrite nitrogen (N02-N), Total Phosphorus (TP), soluble total phosphorus (DTP), permanganate index (CODMn), biological parameters chlorophyll a, algal density and population size.

As shown in Table 1, after treatment, total phosphorus at the water inlet and the water outlet is reduced to some extent, and the concentrations of soluble total phosphorus, total nitrogen and ammonia nitrogen are slightly reduced. In general, the concentration of the nitrogen and phosphorus nutrient salts in the water body does not change obviously.

TABLE 1 results of monitoring of conventional physicochemical indices

As shown in Table 2, after treatment, the density of algae and chlorophyll at the No. 2 water outlet are reduced, and the density of algae and chlorophyll at other points are lower than those at the water inlet. After the algae at the water inlet No. 1 is treated, the colony size is reduced from 89.1 microns to 71.9 microns of the water inlet No. 2, and the colony size is reduced by 19.3 percent.

TABLE 2 biological index monitoring results

In the embodiment, the cyanobacterial bloom is treated by the cyanobacterial comprehensive treatment facility and the method, the aggregation phenomenon of the cyanobacterial bloom basically disappears, the number of cyanobacterial colonies in the water body at the water outlet is obviously reduced, and the water quality at the water outlet is improved to a certain extent compared with the water quality at the water inlet.

Example 2:

the process is that the blue algae automatic collecting mechanism 3 is adopted to collect blue algae in the water body near the shore, the pseudo vacuole, the colony structure and the cell structure of the blue algae collected by the blue algae automatic collecting mechanism 3 are damaged by the pressurizing mechanism 4, the blue algae reproductive capacity is reduced, the algae water separation and treatment are facilitated, the pressure range is 0.5, the height of the algae collecting hopper 35 is adjusted by the expansion and contraction of the hydraulic telescopic cylinder 33 during use to be 1mm lower than the water surface, water is collected to the algae collecting hopper 35 to generate rotational flow, meanwhile, the negative pressure plug flow mechanism 37 generates negative pressure, the damage of the pseudo vacuole, the colony structure and the cell structure of the blue algae is realized, the sucked air is discharged through the air outlet pipe 38, and the algae water is discharged into the air flotation tank 6 through the algae collecting pipe 36; the air flotation tank 6 carries out air flotation separation on the algae water, and the algae water enters the centrifugal dehydration mechanism 7 again for centrifugal separation; discharging the separated tail water into a sedimentation tank 8, adopting a naturally settled and improved harmless flocculating agent to precipitate blue algae, and overflowing the supernatant water of the sedimentation tank into a bank wetland for purification treatment; the tail water treated by the wetland is discharged into a near-shore water body after passing the conventional water quality inspection.

The sampling points of the collected water are distributed in four areas, namely an upstream water inlet area comparison area, a sample collection area, a platform drainage area and a downstream drainage comparison area. The method comprises the following steps of specifically distributing sampling points, arranging a comparison sampling point (3#) in an upstream water incoming area comparison area, arranging a sampling point (2#) at a blue algae automatic acquisition device, arranging a sampling point (1#) at a position, 10m away from a water outlet, of a platform drainage area, arranging a comparison sampling point (4#) in a region, close to a main channel, of the water outlet, and arranging 4 sampling points in total. The analytical indexes include phytoplankton photosynthetic activity, total density of algae, proportion of microcystis and proportion of active cells of microcystis.

As shown in table 3, in 4 phytoplankton photosynthetic activities (Fv/Fm) of the detected water samples, the photosynthetic activity of the water sample phytoplankton in the automatic blue algae collecting device (# 2) is highest, and the photosynthetic activity of the treated phytoplankton (# 1) is reduced to a certain extent by comparing the upstream incoming water with the photosynthetic activity of the water sample phytoplankton in the automatic blue algae collecting device (# 3). The phytoplankton density of the 4 detected water samples is 2.05 multiplied by 1011cells/L with the highest phytoplankton density of the water sample at the (2#) blue algae automatic acquisition device; the second time of the water outlet area (4#), the phytoplankton density is maintained at 9 times of 10, wherein the density of the No. 1 water sample phytoplankton closest to the water outlet is higher and is 5.49 multiplied by 109 cells/L; the phytoplankton density of the upstream incoming water control group (3#) is the lowest and is 5.24 multiplied by 108 cells/L; the density of phytoplankton in the water outlet control water sample is 9.05 multiplied by 108cells/L, which is about 1.73 times of the 3# water sample and about 16.48% of the 1# water sample. From each condition that the ratio of the microcystis in phytoplankton in 4 detected water samples, the ratio of the microcystis in the No. 2 position of the automatic blue algae collecting device is the highest; the active cell ratio of the microcystis in the water sample in the water outlet area (4#) is the highest, and the active cell ratio of the microcystis in the sample point 1# closest to the water outlet and the microcystis active cell ratio are the lowest.

TABLE 3 index of phytoplankton in Water samples

In this embodiment, compared with the automatic collection device for blue algae, the density of phytoplankton in the water layer on the surface of the effluent area is significantly reduced, and the photosynthetic activity of phytoplankton is also significantly reduced. Generally, after the treatment by the invention, the water quality of the outlet is superior to the water quality of the blue algae automatic acquisition device.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A treatment method of a comprehensive treatment device for near-shore water blue algae is characterized by comprising the following steps:

step 1: blue algae are collected in a water body near the bank of the river (1), and according to the difference of the number and the positions of the blue algae, different collecting devices are adopted, and when the number of the blue algae is small, an automatic blue algae collecting mechanism (3) is adopted; when the number of the blue algae is large, collecting the blue algae by adopting a salvage ship (2);

and 2, step: pseudo vacuoles, colony structures and cell structures of the blue algae collected by the salvage ship (2) and the automatic blue algae collecting mechanism (3) are damaged by the pressurizing mechanism (4), the reproductive capacity of the blue algae is reduced, the separation and treatment of the blue algae are facilitated, the pressure range is 0.5-0.8MPa, the height of the algae collecting hopper (35) is adjusted by the stretching of the hydraulic telescopic cylinder (33) during use and is 1mm lower than the water surface, water is collected to the algae collecting hopper (35) to generate rotational flow, meanwhile, the negative pressure plug flow mechanism (37) generates negative pressure, so that the damage of the pseudo vacuoles, colony structures and cell structures of the blue algae is realized, the sucked air is discharged through the air outlet pipe (38), and the algae water is discharged into the air flotation tank (6) through the algae collecting pipe (36);

and step 3: the air flotation tank (6) carries out air flotation separation on the algae water, and the algae water enters the centrifugal dehydration mechanism (7) for centrifugal separation;

and 4, step 4: the separated tail water is discharged into a sedimentation tank (8), the blue algae is precipitated by adopting a naturally-settled and improved harmless flocculating agent, a heightening tank (43) is additionally arranged above a sedimentation tank (39) of the sedimentation tank (8), so that the depth of the sedimentation tank is increased, the depth of the sedimentation tank is 1-5m, the accommodation capacity is conveniently controlled according to the amount of the incoming algae, and the clear water on the sedimentation tank overflows into a shore wetland for purification treatment;

and 5: the tail water after being treated by the wetland is discharged into a near-shore water body after passing the conventional water quality inspection, the wetland consists of a water inlet, emergent aquatic plants planted at the edge, submerged plants planted at the bottom and a water outlet, and the deepest water depth is not more than 1 meter;

be provided with salvage ship (2) and blue alga automatic collection mechanism (3) on river (1), and salvage ship (2) are located one side of blue alga automatic collection mechanism (3), one side of river (1) is provided with loading system (4), and loading system (4) pass through the hose connection with salvage ship (2), loading system (4) are including algae removal trap pond (32) and algae removal trap (5), and algae removal trap (5) are located the inside of algae removal trap pond (32), one side of loading system (4) is provided with air supporting pond (6), one side of air supporting pond (6) is provided with centrifugal dehydration mechanism (7), one side of loading system (4), air supporting pond (6) and centrifugal dehydration mechanism (7) is provided with sedimentation tank (8) and purification wetland (9), and sedimentation tank (8) are located one side of purifying wetland (9), blue alga automatic collection mechanism (3) include annular floating block (10), The device comprises a solar panel (11), a storage battery (12), a filter cavity (13), a filter plate (14), a filter bag limiting block (15), a filter bag (16), a submersible pump (17) and a water outlet pipe (18), wherein the pressurizing mechanism (4) comprises an algae killing trap (5) and an algae killing trap pool (32), the algae killing trap (5) is located inside the algae killing trap pool (32), an algae collecting hopper (35) is arranged at the upper end of the algae killing trap (5), an algae collecting pipe (36) is arranged below the algae collecting hopper (35), a hydraulic telescopic cylinder (33) is arranged inside the algae killing trap pool (32), a support seat (34) is arranged above the hydraulic telescopic cylinder (33), the lower end of the algae collecting pipe (36) penetrates through the support seat (34) and extends to the outside of the algae killing trap pool (32), a negative pressure push flow mechanism (37) is arranged above the support seat (34), and the air inlet end of the negative pressure push flow mechanism (37) is hermetically connected with the algae collecting pipe (36), the air-out end of negative pressure plug flow mechanism (37) is provided with outlet duct (38), and outlet duct (38) extend to the outside of algae trap pond (32) that goes out, sedimentation tank (8) are including gunbarrel (39), algae mud pipe (40), algae sediment pipe (41), sediment outlet pipe (42) and increase jar (43), algae mud pipe (40) are located gunbarrel (39) and increase one side of jar (43), and algae sediment pipe (41) are located gunbarrel (39) and increase the opposite side of jar (43), sediment outlet pipe (42) are located the lower extreme of gunbarrel (39), increase jar (43) and gunbarrel (39) swing seal and be connected.

2. The treatment method of the near-shore water body blue algae comprehensive treatment device according to claim 1, characterized in that: the utility model discloses a blue alga automatic collection device, including annular floating block (10), filter plate (14), storage battery (12), filter chamber (13), filter plate (16), immersible pump (17), and outlet pipe (18) are located the upper end of blue alga automatic collection mechanism (3), the top fixed mounting of annular floating block (10) has solar panel (11), and solar panel (11)'s below installs battery (12), the intermediate position department of annular floating block (10) is fixed with filter chamber (13), filter plate (14) are located the top of the inside of filter chamber (13), and the up end of filter plate (14) is less than the up end of annular floating block (10), the double-phase internal wall of filter chamber (13) is provided with filter bag stopper (15), filter bag (16) are located the intermediate position department of filter chamber (13) inside, and the diameter of filter bag (16) upper end is greater than between two filter bag stoppers (15) apart from each other, immersible pump (17) are located the below of filter bag (16), and the play water end fixed mounting of immersible pump (17) has outlet pipe (18), one end of the water outlet pipe (18) penetrates through the filter cavity (13) and the annular floating block (10) and extends to the outside of the annular floating block (10), and the solar panel (11), the storage battery (12) and the submersible pump (17) are electrically connected.

3. The treatment method of the near-shore water body blue algae comprehensive treatment device according to claim 1, characterized in that: be provided with deck (19) on salvage ship (2), the top of deck (19) is provided with cockpit (20), the inside of salvage ship (2) lower extreme is provided with water storage tank (21), be provided with blue alga cabin (22), railing for oil winding cabin (23) and railing for oil guide groove (26) between deck (19) and water storage tank (21), and railing for oil winding cabin (23) and railing for oil guide groove (26) link up mutually, the inside of railing for oil winding cabin (23) is provided with railing for oil winding mechanism (25), the inside of railing for oil winding cabin (23) and railing for oil guide groove (26) is provided with railing for oil (27).

4. The treatment method of the near-shore water body blue algae comprehensive treatment device according to claim 1, characterized in that: the two ends of one side of the salvage ship (2) are provided with horn plates (24), the horn plates (24) are symmetrical about the vertical center line of the salvage ship (2), one end of the salvage ship (2) is provided with an algae inlet groove (29), one side of the algae inlet groove (29) is provided with a limit door (30), the limit door (30) is connected with the salvage ship (2) in a sliding mode, limit door floating blocks (31) are arranged on the two sides of the upper end of the limit door (30), the limit door floating blocks (31) are fixedly connected with the limit door (30), an oil fence fixing ring (28) is fixedly arranged on one side of the limit door (30), one end of an oil fence guide groove (26) is located on the other side of the limit door (30), and one end of the oil fence (27) is movably connected with the oil fence fixing ring (28).

5. The processing method of the comprehensive processing device for the blue-green algae in the near-shore water body according to claim 1, wherein the blue-green algae collection by the automatic blue-green algae collection mechanism (3) in the step 1 is specifically as follows: a solar panel (11) at the upper end of the blue algae automatic collection mechanism (3) collects sunlight, converts the sunlight into electric energy, transmits the electric energy to a storage battery (12) for storage and provides electric energy for a driving submersible pump (17), because the buoyancy blue algae automatic collecting mechanism (3) of the annular floating block (10) floats on the water surface, when water waves generated by wind blowing hit the annular floating block (10), the blue algae floating on the water surface are driven by the water waves to hit the annular floating block (10), the blue algae flow onto the filter plate (14), the filter plate (14) filters garbage in the water, the blue algae flow down through the filter plate (14) and then flow into the filter bag (16), the blue algae filtered by the filter bag (16) is left in the filter bag (16), water is pumped by the submersible pump (17) and discharged from the inside of the filter cavity (13), the filter plate (14) can be detached during collection, and then the filter bag (16) is taken out.

6. The processing method of the near-shore water body blue-green algae comprehensive processing device according to claim 1, wherein the collecting of the blue-green algae by the salvage ship (2) in the step 1 is specifically as follows: firstly, an oil containment boom (27) wound on an oil containment boom winding mechanism (25) is pulled out to surround a large number of blue-green algae, then one end of the oil containment boom (27) is fastened with an oil containment boom fixing ring (28), a limit door floating block (31) is arranged on a limit door (30), the height of the limit door (30) is automatically adjusted along with the height of a water level, at the moment, the oil containment boom winding mechanism (25) is started to slowly wind the oil containment boom (27), when the oil containment boom (27) is wound, the blue-green algae floating on the water surface is pushed to an algae inlet groove (29), so that the blue-green algae flows into the inside of a blue-green algae cabin (22) along with water, and a fishing boat (2) conveys the collected blue-green algae to the inside of an algae removal trap pool (32) through a hose.

7. The treatment method of the comprehensive treatment device for the blue-green algae in the nearshore water body according to claim 1, wherein the flocculating agent in the step 4 is one or a combination of more of polyaluminium chloride, Polyacrylamide (PAM) and modified clay.