864results about How to "Improve fishing efficiency" patented technology

The invention relates to an autonomous navigation and man-machine coordination catching operating system of a benthic organism catching robot, which comprises a catching robot, a computer used for carrying out comprehensive analysis processing and judgment on catching site and the state of the catching robot and used for providing remote intervention and management for catching management personnel in man-machine coordination catching operation, a mother ship used for carrying the management personnel and collecting and transporting catching objects, and a GPS (Global Positioning System) used for positioning the spatial location of the mother ship; information interaction is carried out between Agent in the catching robot and the mother ship on the water surface, and the actions of benthic walking, identification and space orientation of the catching objects, control catching and the like are autonomously finished. The autonomous navigation and man-machine coordination catching operating system of the benthic organism catching robot is simple in mechanism, low in control complexity, limited in intelligentization, high in catching efficiency, good in environmental suitability and low in manufacturing and maintenance costs, and can pointedly realize catching.

The invention discloses a sea surface LED lamp trapping (fishing) cage, which consists of a floating pontoon, a fishing cage, a battery box, a trapping box, and LED lamp modules, wherein the floating pontoon is arranged on the top of the fishing cage, and a battery pack is arranged on the bottom of the fishing cage. The sea surface LED light trapping (fishing) cage is characterized in that the fishing cage is formed by connecting a plurality of sections of fishing cages; the side wall of each section of fishing cage is provided with a plurality of fishing cage ports with electric gates; a support above each section of the fishing cage is evenly distributed with a plurality of the LED lamp modules along the periphery of the fishing cage; the trapping box are arranged at the center inside each section of the fishing cage, are positioned on fishing cage port supports, and correspond to the fishing cage ports at the same time; and the side wall of the fishing cage is provided with a plurality of the fishing cage ports, and the inner wall of the fishing cage at upper and lower sides of the fishing cage ports is provided with the LED lamp modules. Soft spines and the electric gates which are used for preventing fish from escaping outward are arranged at inner ports of the fishing cage ports. The sea surface LED light trapping (fishing) cage has the advantages that a fishing tackle and a fishing method of the invention greatly reduce fishing cost, reduce the labor intensity of the fishing, and improve fishing amount and fishing efficiency.

The invention provides a solar small-water-area remote-control waste cleaning boat, which comprises a boat body and a control system. A fishing device, a trash bin, a propelling and steering mechanism, a power supply system and a video acquisition system are arranged on the boat body. The control system comprises a boat body control part and a remote control part. The boat body control part is installed on the boat body. The remote control part is arranged in a boat body control workstation. The boat body control part and the remote control part realize signal transmission through a wireless transmission way to realize the remote control of the boat body and the devices which are arranged on the boat body. The solar small-water-area remote-control waste cleaning boat is remotely controlled based on a wireless remote control technology, has the advantages that the boat is simple to operate, the mobility is good, the controllability is good, secondary pollution is not caused and the working efficiency is higher, and is very suitable for cleaning water surface trash in small water areas in parks or scenic spots.

The invention discloses a water area flotage cleaning device, which comprises a power device, a catcher, a separator and a flotage processing and recycling device, wherein the catcher comprises a rotary shaft and at least one catching gear, the power device matches with the rotary shaft to drive the rotary shaft, the catcher gear is arranged relative to the rotary shaft radial direction and is fixed and matched with the rotary shaft, the separator and the non-rotary part of the catcher are relatively fixed, the separator is arranged from the upper side to the lower side, the upper side is set in a comb gear shape, the comb gear shape is composed of at least two separating gears arranged in axial direction, the adjacent separate gears are arranged on both sides of the catcher gear with a gap to the catcher gears. The invention has simple and compact structure, high mechanic degree, small energy consumption, short flow, small occupancy area, easy operations, high work efficiency, environment protection property, convenient maintenance, simple process, and can maximally save labors, resources and process cost.

The invention discloses a method for controllably breeding water hyacinth in an open water body, belongs to the aquatic plant breeding technical field, and also belongs to the environmental protection technical field which utilizes aquatic plants to govern open water eutrophication. In the method, wave attenuation floating beds are employed to controllably breed the water hyacinth in the open water body, machinery is employed for salvage, the best stocking number is not less than 500kg per mou, the water body is kept a certain interchangeability after stocking, a firm floating movable fence (wave attenuation floating bed partition) is employed while stocking, the wave attenuation floating beds can automatically rise and fall with the water level, and are made of foam ball floats, steel tubes, meshes, iron anchors, sinkers and net ropes, the fence is formed with the wave attenuation floating beds according to specific situations of the lake surface, the fence area is controlled at 1 / 3 of the water surface area, the fence area of a wave attenuation floating bed is controlled at 100 mou, the breeding area of the water hyacinth is controlled at 1 / 4-1 / 3 of the area of the wave attenuation floating beds; and the water hyacinth is salvaged and utilized, and is made into an organic fertilizer by combining with sludge of sewage treatment plants.

The invention relates to a feeding device, in particular to aquaculture production equipment for feeding aquatic products, and discloses automatic net cage type aquaculture production equipment for shrimp, crab and shellfish products. The purpose is to provide the automatic net cage type aquaculture production equipment for shrimp, crab and shellfish products, wherein the aquaculture production equipment is simple in structure, low in cost, easy to operate, high in efficiency, stable in output, large in yield, environmentally friendly and free of pollution. The automatic net cage type aquaculture production equipment for shrimp, crab and shellfish products comprises a feeding pond, crab nest putting and taking equipment, crab nests and computer detecting and controlling equipment, wherein the feeding pond is formed by six base plates, every two base plates are connected through connecting columns, and a bulkhead is arranged on the side face of each base plate; the crab nest putting and taking equipment comprises guide rails, a walking device, a cross arm, nest lifting equipment, crab nest observing equipment and feed putting equipment; a movable cover is arranged on the upper side of each crab nest, a detachable feed table is arranged in each crab nest, at least one partition plate is arranged in each crab nest and provided with holes, and a barrier structure is arranged on the side of each crab nest.

Provided is a fish-collecting light device capable of freely adjusting the irradiation angle of light, and especially keeping the direction of light irradiation constant even when the hull is swaying. The fish-collecting light device includes: a fish-collecting light mounted on the hull to irradiate light on the sea surface; an angle variable device that changes the pitch angle of the above-mentioned fish-collecting light; a detection mechanism that detects the rotation angle of the hull caused by the pitching phenomenon and the swaying phenomenon The control mechanism controls the variable angle device according to the rotation angle of the hull detected by the detection mechanism, and controls the pitch angle of the above-mentioned fishing light to a predetermined value.

The invention belongs to the technical field of aquaculture equipment and provides a seawater aquaculture net cage capable of preventing attachment of marine organisms. The seawater aquaculture net cage with an automatic netting cleaning function comprises an upper floater, a bottom plate, four vertical columns, a bubble pipe and a high-pressure air pump. Netting is arranged between the upper floater and the bottom plate, the four vertical columns are arranged at four outer corners of the upper floater respectively, each vertical column is provided with a guide rod, and four first guide sleeves are arranged at the edge of the upper floater and slidably arranged on the corresponding guide rods. Four second guide sleeves are arranged at the edge of the bottom plate and slidably arranged on the corresponding guide rods, outer netting externally surrounds the four vertical columns, the bubble pipe is spirally arranged outside the netting, the lower end of the bubble pipe is closed while the upper end of the bubble pipe is communicated with an air outlet of the high-pressure air pump, and the high-pressure air pump is arranged at the upper end of one of the vertical columns. The seawater aquaculture net cage has advantages of high capturing efficiency, available for netting cleaning, prevention of marine organism attachment on the netting, and the like.

The invention discloses an automatic salvage ship for garbage on a water surface, belonging to the technical field of environmental sanitation equipment. The ship is in a left and right symmetrical structure, and is composed of a ship body, and a salvage device, a direction control device, a power supply, a power device and a power transmission device which are mounted on the ship body. Power is transmitted to an impeller by a motor through a worm rod and a worm wheel; the impeller rotates to push the ship body to move frontwards; a steering wheel is connected with a small belt wheel; a large belt wheel is connected with a rudder; the steering wheel rotates leftwards and rightwards, and the rudder is driven by a belt to swing leftwards and rightwards, so that the movement direction of the ship body is controlled; a low-speed motor is connected with a salvage net II at the front end of the ship body and the salvage net II is connected with a salvage net I through a tapered gear; and the frontward and backward rotation of the low-speed motor is controlled by switching on and off the power supply, so that the salvage net I and the salvage net II can swing back and forth. By virtue of the automatic salvage ship, the garbage on the water surface can be automatically salvaged so that the labor intensity of cleaning workers is alleviated and the salvaging efficiency is improved; and the structure is simple and the working is stable, the operation and the maintenance are convenient and the automatic salvage ship can be popularized and applied to all scenic spots and urban lakes.

The invention provides a method capable of improving fishing efficiency and a fish-collecting light device used in the method. This method of collecting fish is characterized in that aquatic animals such as phototaxis squid are lured and concentrated near the light source, and light of a predetermined luminous intensity is irradiated with light of a predetermined flashing cycle at a predetermined lighting time to attract the concentrated aquatic animals, so that the aquatic animals become paralyzed. In addition, the fish-collecting light device used in the above-mentioned fish-collecting method is characterized in that it has at least one light source, a flicker cycle control unit for controlling the flicker cycle of the light source, and a device for controlling the lighting time of the light source. Lighting time control unit.

The invention discloses an automatic salvage device for suspended garbage in a water body. The automatic salvage device for the suspended garbage in the water body comprises a moving ship body, a garbage salvage device is arranged on the end portion of the moving ship body, a garbage collection box is arranged on the moving ship body, a garbage packing device is arranged in the garbage collectionbox, and the garbage salvage device comprises a garbage conveying mechanism and a garbage collection rake tooth mechanism. The garbage conveying mechanism comprises a conveying bracket and rotating rollers, and a conveying chain strip is arranged between the two rotating rollers. The garbage collection rake tooth mechanism comprises two bracket plates and supporting rod frames, a steering mechanism is further arranged at the upper ends of the supporting rod frames, a receiving frame is fixedly connected between the two supporting rod frames, a vertical rotating rod is arranged on the receivingframe, a salvage net plate is connected to the lower end of the vertical rotating rod, and the steering mechanism is fixedly installed at the upper end of the vertical rotating rod. According to thescheme, water body garbage salvage, garbage crushing and garbage packing are combined, so that secondary pollution caused by garbage transfer is prevented, the salvage range is expanded, and the efficiency of garbage salvage is improved.

The invention discloses a fish catching device in the unattended ship intelligent fishery. The fish catching device comprises an unattended ship. An intelligent fish catching mechanism and a ship-mounted fabric take-up and pay-off mechanism for lifting up the intelligent fish catching mechanism and putting the intelligent fish catching mechanism in water are arranged on a deck of the unattended ship. The intelligent fish catching mechanism comprises a fish catching box. A fish inlet is formed in the side wall of the fish catching box and provided with a fish cage door. A fish luring lamp is arranged in the fish catching box. A first fish detector for detecting fish swarms is arranged on the outer surface of the bottom wall of the fish catching box. A second fish detector for recognizing whether objects detected by the first fish detector are fish swarms or not and monitoring the number of the fish swarms in the fish catching box is arranged on the inner surface of the top wall of the fish catching box. The catching device is simple in structure and reasonable in design, the fish catching task of the unattended ship intelligent fishery can be completed on the premise of no artificial interference, whole-process unattended fish catching is realized, it is avoided that time and labor are wasted in the fish catching process and a water body is polluted, and the problem that efficiency is low during the fish catching of a traditional fish cage is solved.

The invention provides a winding preventing aquatic plant salvaging mechanism. A salvaging arm(1) forming a main frame of the salvaging mechanism is used for positioning and supporting all working shafts; the salvaging mechanism comprises a plurality of salvaging claws(3) which are divided into three groups and fixed on a salvaging shaft(21); a cutting board(4) is fixed at the front end of the salvaging arm(1); the position, corresponding to a salvaging blade(20), on a cutting board body(22) is provided with a passing groove; the side wall of the passing groove of the salvaging blade is fixedly provided with a cutting blade(23); and a ring-shaped conveying belt(2) is arranged along the length direction of the main frame. After the salvaging claws(3) salvages the aquatic plants onto the conveying belt, the salvaging blade(20) cuts off the aquatic plants with longer stems and vines by cooperating with the cutting blade(23) when passing the passing groove on the cutting board body(22), so that the winding of the aquatic plants around the salvaging device is effectively prevented, and the salvaging mechanism has the characteristics of simple structure, convenient use and high salvaging efficiency, and is suitable to be used for salvaging and cleaning the aquatic plants, such as water hyacinth, in ponds and lakes.

The invention relates to a process and a device for emergent salvage of algae bloom. The process is completed all in only one device and includes the following steps of collection, separation, flocculation and medicine addition, dehydration, mud discharge and cleaning. The device used in the process includes a water collection tank, a water inlet pump, an algae-water separator, an automatic medicine addition device, a fold screw dewatering machine, an algae mud receiving tank, and a cleaning pump, wherein all of the units are arranged on one ship body. The water collection tank, the water inlet pump, the algae-water separator, the fold screw dewatering machine and the algae mud receiving tank are successively connected in series through pipelines from an input end to an output end. The process is carried out in the sequence of algae and water collection, algae-water separation and volume reduction and dewatering. Operations of collection, separation, flocculation and medicine addition, dehydration and mud discharge are completed in a whole device. The process, compared with a conventional algae bloom emergent salvage process, has reasonable design and low device size, simple operations and stable operations, and can effectively solve the defects in manual salvage in the prior art. The process and the device are used for the emergent salvage of algae bloom.

The invention relates to a scallop catching net for catching scallop seedlings, adopting a net rack structure, which is a plane rack supported through a stainless steel bar, by welding a stainless steel plate and the stainless steel bar with different thickness. A head of the net rack is an arc net mouth, which is beneficial for the scallop to enter a net sac, thereby avoiding nets are inserted to a soft seabed. A net sac rack is arranged at the rear part of a stone removing open, the net sac is a nylon net tied on the net sac rack. The net sac is away from the seabed by the net rack, only two stainless steel bars in a sled form are contacted with the seabed in dragging, thereby greatly reducing contact surface with the seabed, protecting seabed environment, meanwhile frictional coefficient of the stainless steel bar and the seabed is small, thereby greatly reducing trawl resistance, saving oil consumption. The net rack causes the net sac to break away from the seabed, thereby avoiding finger stones and dead scallop from entering the net, reducing post-treatment difficulty of the scallop. During the hauling process of a sinker wheel machine, only the bottom of the net rack is contacted with a shipboard and a hatch wall.

The invention discloses a novel amphibious garbage salvaging device and belongs to the field of environmental protection mechanical equipment. The novel amphibious garbage salvaging device comprises rotating wheels, a caterpillar band, propellers, a garbage collecting box, a rubber pipe, plastic buoys and the like. Different salvaging machines can be selected according to garbage types to pick up garbage of different types and different shapes. The novel amphibious garbage salvaging device is simple in structure, low in manufacturing cost, high in salvaging efficiency and picking precision, wide in universality, capable of being widely applied to garbage salvaging of lakes or beaches and other fields and meeting the environmentally friendly development direction and hopeful to be applied and popularized.

The invention discloses a float removing ship comprising a ship body. An operation platform is arranged at the tail end of the ship body. Horizontal rods are arranged on the two sides of the front end of the ship body correspondingly and each connected with a vertical rod perpendicular to the horizontal rod. The lower ends of the two vertical rods are connected through an iron chain. The opening parts of a fishing net are connected to the horizontal rods, the vertical rods and the iron chain, and the tail of the fishing net is tied by a rope. The float removing ship has the beneficial effects that the float removing ship is high in fishing efficiency, and the fishing strength of fishing personnel is small.

The invention relates to an all-electric fishing boat for dirt and sundries on water surfaces. A solar panel device (6) and a wind power generation device (7) are arranged in the tail of a boat as a power source; the head of the boat is provided with a fishing expansion device (14) and a fished matter sorting device (13); a control room (5) is arranged in the middle part of the boat; a storage battery (9) is connected with a controller (8); a sewage filter (15) is arranged under the solar panel device; a driving device (3), a driving motor (10) and a gearbox (11) are arranged inside a machinery cabin on the lower part of a boat body. The fishing boat overcomes the pollution of the prior fuel oil boats on the water surfaces of lakes and rivers, and has the remarkable advantages that: the fishing boat realizes zero-emission water surface environment-friendly operation, separation, filter, pack and then carry out debarkation treatment to fished sundries, and is inestimable in economic value and social value.

The invention relates to a salvage ship for water surface garbage through remote control, a garbage salvage system and a working method. The salvage ship for water surface garbage comprises a video image acquisition device, a salvage device and a shipborne control system, wherein the video image acquisition device is suitable for sending video image signals of water surface collecting to an onshore remote control system through the shipborne control system; the shipborne control system is suitable for receiving control signal sent by the onshore remote control system to drive the salvage device to achieve salvage of water surface garbage; according to the salvage ship for water surface garbage, the garbage salvage system and the working method, the degree of risk of artificial salvage of garbage is reduced through unmanned remote control, the scope of garbage salvage is widened and the efficiency of salvage is improved through remote operation.

The invention discloses a floating object fishing device for water pollution treatment, which comprises a salvage ship main body, a support frame is installed on both sides of one end of the salvage ship main body, and the two support frames are fixedly connected to a salvage mechanism, and the salvage mechanism It is installed obliquely, and one end is located under the water surface. The two sides of one end of the salvage mechanism located under the water surface are rotatably connected with collecting devices. Both sides of the upper side are equidistantly provided with support rods, and one end of the support rod away from the side wall of the main body of the salvage ship is fixedly connected to both sides of the transmission device. The invention moves the main body of the salvage ship on the water surface to salvage the floating objects with high efficiency and a large area, and discharges the water carried in the floating objects during the salvage process, reduces the load, improves the efficiency of salvage, and reduces the work of salvage personnel at the same time The amount can quickly show the effect of water pollution floating debris control.

The invention provides an automatic fishing device. The automatic fishing device comprises a cage, a moving net and a trigger device. A fishing net covers an upper frame and a lower frame of the cage, the moving net surrounds the side wall of the cage, the upper edge of the moving net is fixed on the upper frame of the cage, and magnets are hung around the lower edge of the moving net and are connected with the trigger device by leads. The lower frame of the cage is made of materials which can be attracted by the magnets or is provided with iron blocks corresponding to the magnets, and the number of the magnets is determined by preventing fish from escaping from the cage. Compared with the prior art, the automatic fishing device is capable of automatically fishing and high in fishing efficiency.

The invention discloses an environment-friendly waste salvaging device for water body pollution, and belongs to the field of riverway garbage salvaging. The environment-friendly waste salvaging devicefor water body pollution comprises a shell, a box and a front support, the box is arranged on the inner wall of the bottom of the shell, the front support is connected to the side wall of the front end of the shell, an angle adjusting assembly is arranged at the top of the box, the angle adjusting assembly is connected with a telescopic rod, and elastic assemblies are arranged at the two ends ofthe telescopic rod; a collecting net is connected to the bottom of the stretching assembly, a cover plate is arranged at the top of the angle adjusting assembly, two supporting rods are arranged at the top of the cover plate, a vibration assembly is arranged at the tops of the supporting rods, a conveying assembly is arranged between the vibration assembly and the rotating rollers, and a dehydration device, a pollutant classification box and a rotating motor are arranged at the bottom of the shell; according to the device, riverways with different widths can be automatically fished, the bearing capacity of the shell can be increased through dehydration, the continuous working time can be prolonged, and pollutants can be conveniently classified and treated.

The invention discloses an executing mechanism of a water surface rubbish salvaging device. The mechanism comprises a salvaging device, a collecting box and a metal hose, wherein the collecting box isarranged on a hull, the salvaging device is connected with the collecting box through the metal hose, and a negative pressure machine which is used for forming negative pressure in the collecting boxis installed on the top of the collecting box; the salvaging device comprises a hollow box body, a suction pipe is connected with the side edge of the hollow box body, the rear end of the suction pipe is bent and arranged downwards, an air bag is connected with the bottom of the hollow box body, and the top of the hollow box body is connected with a connecting pipe; two ends of the metal hose areprovided with metal hose joints, the metal hose joint at one end is connected with the connecting pipe, and the metal hose at the other end is connected with a feeding port formed in the collecting box. The mechanism has the advantages of simple structure and reasonable design, by arranging the air bag, the salvaging device always floats on the water surface, manual height adjustment of the salvaging device is not needed, the operation difficulty is reduced, the salvaging efficiency is high, and the salvaging effect is good.

The invention discloses a visible marine product catcher. The visible marine product catcher comprises a catcher body for catching marine products; a magnetic door is arranged below the catcher body; the catcher body is connected with a catching guide rod to be operated and controlled by a water surface worker; the catching guide rod is provided with a camera used for observing underwater conditions. When the visible marine product catcher works, the water surface worker knows the underwater conditions through the camera, moves the catcher body to be above a submarine object through the catching guide rod, then descends the catching guide rod, controls the magnetic door to open and continuously descends the catching guide rod; after the submarine object enters the magnetic door, the magnetic door comes into contact with the seabed and then is closed, and the submarine product is contained in the catcher, and thus the catching of the marine product is completed. The visible marine product catcher disclosed by the invention adopts a mature and reliable technology, is relatively low in cost, can be installed on a same trawler in a large number, can create very considerable economic benefit and can be conveniently popularized and used in marine product farmers widely.

The invention discloses a repeated seat seal type packing water regulator, and relates to a packing and water regulating tool for separate layer water injection of an oilfield water injection well. The repeatable seat seal type packing water regulator is integrated with an eccentric water regulator and a repeatedly-set hydraulic packer, has the function of an underground repeated seat seal of the packer and the functions of two eccentric water regulators, and simultaneously solves the problems of choke damage. The repeated seat seal type packing water regulator fits for the requirements of a layered water flood well with the wellhead pressure approaching that of a trunk line and with large interbed physical difference, fits for subdivision water injection of a plurality of thin interbeds, and improves the testing accuracy and the allocation efficiency of each single bed as well as the running and pulling efficiency of water nozzles; and the repeated seat seal type packing water regulator has the advantages of the existing eccentric separate layer injection technology without changing the existing running an pulling and separate layer testing modes and solves the technical problems that the hydraulic eccentric packing water regulator can not be subjected to seat seal after downhole unsealing due to creeping of a separate layer injection tubing string or other reasons, and the validity period of the separate layer injection is prolonged.

The invention relates to flexible bionic bait. The flexible bionic bait comprises flexible ABS (acrylonitrile butadiene styrene) plastic, waste polypropylene, polypropylene softening agents, plasticizer, stabilizer and pigment. The flexible bionic bait is high in flexibility and high in tensile property, can be flexible in water and can swing along with water flow in the water; fishes can be attracted by the pigment on the surface of the bait; the fishing efficiency is high; and the waste polypropylene serves as a raw material, the waste plastic can be recycled, pollution is reduced, and the bait production cost can also be reduced.

The invention relates to a pond culture laser-assisted capturing device and capturing method, which belong to the technical field of fish capture. The pond culture laser-assisted capturing device comprises a long strip-shaped floater (1); the floater (1) floats on the water surface of a pond (4); two ends of the floater (1) extend out of both sides of the pond (4); at least one cable (2) is attached to the floater (1); a laser transmitter group (3) is arranged along the cable (2); the laser transmitter group (3) is connected with a laser transmitter driving system by a cable (2); laser rays transmitted by the laser transmitter group (3) form a laser grating surface; and the laser grating surface is intersected with the bottom surface and two side surfaces of the pond. According to the invention, the pond fish culture capturing labor intensity is greatly reduced, the capturing efficiency is increased, the capturing cost is reduced, large-sized mechanical capturing equipment is not needed in use, operation requirements are greatly reduced, and damages to fishes in the capturing process are greatly reduced.

The invention discloses a bloom alga blocking, enrichment collection and alga removal system. The system comprises at least one alga collection unit, a blue alga conveying main pipe, a boost pump anda control platform. Each alga collection unit is composed of an enclosure device and an alga collection device. Each enclosure device is fixed in water in a V shape and comprises a first floating body, a skirt body and a balance weight, wherein the balance weight is sunken to water bottom mud, the first floating body floats on the water surface, and the skirt body is connected between the first floating body and the balance weight. The open face of the V shape of each enclosure device faces an open water area. Each alga collection device is arranged in the included angle of the V shape formedby the corresponding enclosure device and comprises an alga suction head, a second floating body, an alga suction pump and a collection pipeline, wherein the alga suction pump is connected with the alga suction head and controls the alga suction head to extract algae, and the second floating body is connected to the alga suction head. Each second floating body is connected with the corresponding first floating body through a mooring rope. The collection pipelines collect the algae extracted by the alga suction heads, and the algae are conveyed to the blue alga conveying main pipe. By means ofthe system, the removal efficiency of algae of the lakeside blue alga enriched area can be remarkably improved, the process is simple, and the operation and maintenance cost is low.