77results about How to "Affect water quality" patented technology

The invention discloses a controllable-respiration preservative film and a preparation method thereof. The method comprises the following steps: dissolving a water-soluble polyhydroxy plasticizer in water, adding the reaction raw material, heating until the raw material is completely dissolved in water, dispersing at high speed, and cooling to 50-70 DEG C to prepare a solution for running filming; and running the solution for running filming onto a steel belt on a running production line via a die head, and drying to obtain the controllable-respiration preservative film. The controllable-respiration preservative film is prepared from the reaction raw materials in percentage by mass: 60-80% of polyvinyl alcohol, 10-30% of water-soluble polyhydroxy plasticizer, 1-5% of moisture respiration regulator, 1-3% of compatilizer, 3-10% of water retention agent and 0.5-3% of assistant. The preservative film has high barrier property for oxygen and nitrogen sources; the bidirectional permeation exchange power for moisture can be effectively regulated and controlled through the raw material formula; and thus, the preservative film can ensure free respiration and moisture exchange of fruits and vegetables in the preservation process.

The invention provides a method for de-silting a lake and constructing a lake center island and belongs to a construction technology. The method comprises the following steps of: de-silting and dredging, transporting sludge, carrying out storage yard treatment, curing the sludge, discharging tail water and constructing the lake center island while de-silting. The method disclosed by the invention solves the problem that old problems of de-silted lake water happen again. The engineering cost is reduced, the work period is shortened and the secondary pollution is managed. The method has the characteristics of smaller occupied space, no transferring of pollutants, investment saving and good benefits. According to the method disclosed by the invention, the swampiness problem is solved, the water storage amount is increased, a land resource is increased, a wetland park is established and the pollution recycling is realized. The method is a practical and feasible good method for managing and beautifying the lake.

The invention discloses a river water sampling device at different water depths. The river water sampling device comprises a transverse plate and a sampling barrel, wherein a vertical spiral shaft isarranged on the transverse plate; a movable sleeve which is connected with the spiral shaft in a threaded fit mode is arranged on the spiral shaft; the outer side wall of the movable sleeve is connected and fixed with a fixed sleeve arranged on the outer side wall of a supporting lifting tube through a fixed connecting rod; the sampling barrel comprises an inner barrel and an outer barrel; a rotary shaft is arranged inside the supporting lifting tube; the bottom end of the rotary shaft passes through the top wall of the outer barrel and is fixedly connected with the top wall of the inner barrel; a plurality of partitions which are parallel are arranged on the inner part of the inner barrel for dividing the inner barrel into a plurality of sampling cavities; a first water inlet is formed inthe side wall of each sampling cavity; a plurality of second water inlets which are in one-to-one correspondence to the first water inlets are formed in the side wall of the outer barrel; and a rotary rod is further arranged at the top end of the rotary shaft. The river water sampling device is simple in structure, is relatively high in reliability of sampled river water, is simple, convenient and quick to operate, can sample river water at different depths, and is relatively high in practicability.

The first operation process in hollow fiber membrane separator system includes: work state; air and water double-washing state including introducing small amount of original liquid to wash the membrane in the right direction while introducing compressed air to wash the membrane in the right direction; and draining state. The second operation process includes: work state; air and water double-washing state including introducing small amount of original liquid to wash the membrane in the right direction while introducing compressed air to wash the membrane in the right direction; inverse washing state with inverse washing liquid; and draining state. The third operation process includes: work state; air and water double-washing state including introducing small amount of original liquid with chemical added to wash the membrane in the right direction while introducing compressed air to wash the membrane in the right direction; and draining state.

The invention discloses a glass cleaning machine for glass manufacture. The glass cleaning machine comprises a working platform, a cleaning room, an air drying room, a detection room, a clamping device and a discharging table, wherein a transverse movement support is arranged above the working platform; a transverse track is arranged on the transverse movement support; the clamping device comprises a support plate, a movable cylinder, a clamping guide rail and clamping claws; a movable sliding block is arranged on the right side of the support plate and limited in the transverse track; a limit slot is formed in the clamping guide rail; and a clamping sliding block is limited in the limit slot. The glass cleaning machine is simple in structure and high in practicability; as the detection room is designed to scientifically detect cleaned glass, compared with the naked-eye observation mode, the glass cleaning machine is more accurate and scientific; together with the designed clamping device, glass can be cleaned more automatically, and the quality of cleaned glass is better; and meanwhile, as a wastewater treatment box is designed, water in the cleaning room can be recycled, accordingly, the water resources are saved, and the comprehensive utilization efficiency is improved.

A hollow fibre membrane separation system is composed of membrane module, circulating tank and connecting pipeline. It features that the liquid inlet pipe is connected between circulating tank and membrane module for supplying raw material to membrane, and a working pump and the raw water flow controller and one-way chemical applying valve for washing said membrane module are installed to said liquid inlet pipe.

The invention discloses a living body transportation method of Octopusochellatus seedling breeding and releasing, and relates to the technical field of the living body transportation of the marine product culture. Rice hulls are used as a substrate, the rice hulls are softer, and cannot hurt the Octopusochellatus young seedlings in the shaking process. The rice hulls can be suspended in the seawater so as to form countless enclosed spaces, so the probability of cannibalism of the Octopusochellatus young seedlings is reduced. The use water for raising and transporting the Octopusochellatus young seedlings is the seawater in which suspended particles are removed, and the used seawater for raising and transporting the Octopusochellatus young seedlings is the same as the seawater of the natural spawning site sea area of Octopusochellatus seedling breeding and releasing, so the Octopusochellatus young seedlings can adapt the natural sea area environment as soon as possible, the effect of the environmental change to the survival rate of the Octopusochellatus seedlings is reduced, and the survival rate of the seedlings is improved. The method has the advantages of no anesthetics, no food quality and safety risk, no gradient cooling, no effect to the survival rate of the Octopusochellatus young seedlings, cheap cost, security and environmental protection, and high survival rate of the seedlings.

The invention discloses an automatic fish feeder. The automatic fish feeder comprises a loading hopper, a cylinder switch and a material containing mechanism, wherein the cylinder switch is verticallyconnected with an outlet at the bottom of the loading hopper, and a through hole is formed in the cylinder switch and is selectively communicated with an outlet of the loading hopper under the driving of the motor; the material containing mechanism can be used for containing fish food fed into water by the loading hopper through the cylinder switch and comprises a feeding ring, a telescopic rod and a feeding disc, and the feeding disc is connected to the part right below the feeding ring through the telescopic rod. According to the automatic fish feeder, the automatic feeding of feeds can berealized, so that the workload for manual feeding fish is reduced, and the satiation that the survival rate of the fish is reduced due to the forgetting of feeding is avoided; and after entering the material containing mechanism through a conveying pipeline, fish food can be fixed in a region delineated by the feeding ring and / or the feeding disc so as to form a fixed foraging site for the fish, so that efficient feeding of the fish is realized, the situation that the water quality of a fish tank is influenced when the fish food is not timely eaten because the food is not fed to a fixed site and drifted away all around is avoided, the replacement frequency of water in the fish tank is reduced, and the feeding cost lowered.

The invention provides a method for supplying glyptosternon maculatum initial feed. The method comprises the following steps: feeding hatched fairy shrimps after fry is hatched for 10 days and startsto come up; starting to feed rainbow trout initial feed after the fry is hatched for 20 days; starting to feed chopped tubificidae after the fry is hatched for 35 days; and starting to feed balls of mixture of rainbow trout initial feed, pig liver and tubificidae in the place with fries gathered after the fry is hatched for 60 days. The method can be used for successfully solving the problem of initial feed of glyptosternon maculatum fries, and the survival rate of fries can be remarkably increased.

The invention relates to a crushing separation grille, which comprises a motor, a speed reducer and a housing, wherein a crushing mechanism and rotary drum grille meshes are arranged inside the housing, the rotary drum grille meshes are positioned on both sides of the crushing mechanism, the crushing mechanism is positioned on the rear side of the rotary drum grille mesh, the rotary drum grille mesh drives the crushing mechanism to rotate when the rotary drum grille mesh rotates, the crushing mechanism comprises cutting blades fixed on the shaft, and the cutting blades perform reverse rotation. According to the present invention, the crushing mechanism is arranged in the middle of the rotary drum grille meshes so as to crush garbage on the gate, and when the garbage drifts to the gate from the upstream, the garbage can be decomposed when the water passes through the crushing separation grille, such that the influence of the accumulation of the garbage at the gate on the water quality of the gate can not be caused, the environment around the river is protected, and the garbage treatment worker can conveniently treat the garbage in time so as to reduce the pressure of the garbage treatment worker and protect the gate environment.

The invention relates to an antibiosis pest-resistant packaging membrane used before fruit harvest, which belongs to the field of agricultural product insecticidal degerming. The antibiosis pest-resistant packaging membrane comprises the following components in parts by mass: 100 parts of a base material, 1000-3000 parts of deionized water, 1-50 parts of an antiseptic, 2-30 parts of a plasticizer, 2-40 parts of an auxiliary agent, and 3-60 parts of an emulsifier. The preparation method comprises the following steps: the components are metered according to the above formula, then dissolved and blended at the temperature of 30-100 DEG C, then the material is cooled, and the product is sprayed through hydraulic equipment to the fruit trees in a spray form for forming the membrane. The membrane has the advantages of good biodegradability, mechanical property, obstruct performance and antibacterial property, and can substitute pesticides and fruit tree sleeve bags in the field of agricultural product insecticidal degerming.

The invention relates to a water treatment device between pipe networks, particularly discloses a disinfector mixing device for supplementing residual chloride between the pipe networks and solves the problem of an existing mixer that a drug mixing effect cannot be met and head loss exists. The disinfector mixing device is characterized in that multiple flow diversion blades are fixedly arranged on the inner wall of a water transmission pipe; the front sections of the flow diversion blades are parallel to the axis of the water transmission pipe, and the rear sections are twisted along the same direction of the circumference of the water transmission pipe; the number of the flow diversion blades is 3 to 4; the total length of the flow diversion blades is 2 to 4 times the inner diameter of a pipe; the length of the front sections of the flow diversion blades is 0.2 to 0.5 time the total length of the flow diversion blades; a ratio of the height of the flow diversion blades to the inner diameter of the pipe is 0.3 to 0.35; a twisting angle is 30 to 40 degrees. The disinfector mixing device disclosed by the invention has the advantages that the flow diversion blades are arranged to form a circular blade cascade along the pipe wall, the middle part of the circular blade cascade is hollow, fluid in an outer ring is changed from a straight flowing state into a spiral flowing state, and the fluid is kept in spiral motion within a certain length after the fluid flows out of a water opening; drugs can be fully mixed by utilizing a spiral flow property; the number and the occupied flow choking area of mixing elements are reduced, and energy loss of water flow is reduced.

The invention discloses integrated biological rotating disk equipment applied to deep treatment of distributed type domestic wastewater. The integrated biological rotating disk equipment comprises that an anaerobic unit, an anoxia unit, a flocculating settling pool, a biological rotating disk unit, a secondary sedimentation tank and an ultraviolet disinfecting device which are sequentially arranged on a machine body from back to front; the anoxia unit is provided with a total water inlet, the water outlet end of the anoxia unit is connected with the anaerobic unit, the water outlet end of theanaerobic unit is sequentially connected with the flocculating settling pool, the biological rotating disk unit, the secondary sedimentation tank and the ultraviolet disinfecting device through a static mixer, and the ultraviolet disinfecting device is provided with a total water outlet; a mud discharging system is arranged at the bottom of the machine body, and the mud discharging system is respectively connected with mud buckets at the bottom of the anoxia unit, the bottom of the anaerobic unit, the bottom of the flocculating settling pool and the bottom of the secondary sedimentation tank;a refluxing system is arranged in the machine body, and the refluxing system is connected between the biological rotating disk unit and the anoxia unit. The equipment has the advantages of higher impact load resistance, enhanced nitrogen and phosphorus removal capacity, compact structure and ability in achieving overall transportation and lifting; if the equipment is matched with a self-control system, unattended operation can be achieved.

The invention discloses an environment-friendly toilet water tank, include that box, a lid is arranged on that top of the box body, an inlet pipe arranged at the bottom of the box body and an outlet pipe arranged at the bottom of the box body, a lid of that box is detachably connected with the box body, a disinfection lamp is arranged at the bottom of the box cover, a water outlet is arranged at the bottom of the box body and matched with the water outlet pipe, a ball plug is arranged at the water outlet, a float plate is arranged in the box body, a left and right side wall of that float plateare provided with a first movable chamber, a second movable cavity is arranged on the front and rear side walls of the floating plate, a first scraper is arranged in the first movable cavity, a second scraper is arranged in the second movable cavity, a first mounting box is arranged on the floating plate, and a control component for driving the first scraper and the second scraper to move is arranged in the first mounting box.

The invention discloses a micropterus salmoides seedling transport case and a method for achieving micropterus salmoides seedling transportation. The transport case comprises a case body, a fry layer,an aeration layer and a filtering layer are sequentially arranged inside the case body from top to bottom, the fry layer and the aeration layer are communicated through a filter plate, and the aeration layer and the filter layer are separated through a partition plate; a tubular aerator, a first inclined plate and a second inclined plate are arranged inside the aeration layer, the higher ends ofthe first inclined plate and the second inclined plate are fixedly connected and are of a V-shaped structure, the lower ends extend in the opposite direction, the tubular aerator is arranged at the joint of the first inclined plate and the second inclined plate, and the tubular aerator is connected with a fan outside the case body. By adopting the structure, excrement, secretions and the like generated by fry can be completely supplied into the filtering layer from the fry layer and the aeration layer, the phenomenon that the water quality is affected due to the fact that excrement, secretionsand the like remain in the fry layer and the aeration layer for a long time is avoided, and fry health is threatened.

The invention discloses a water purification system which comprises an integrated compound filter element, a pressurizing pump and a filter screen, wherein the integrated compound filter element comprises a housing and a compound filter element body arranged in the housing; a plurality of openings are formed on the housing and comprise a pure water outlet and a pressurized water inlet; the compound filter element body is arranged between the pressurized water inlet and the pure water outlet; the pressurizing pump is arranged between the pressurized water inlet of the integrated compound filter element and water supply equipment; the filter screen is arranged between the pressurizing pump and the water supply equipment, and the filter precision of the filter screen is 50-100 microns. According to the water purification system provided by the embodiment of the invention, impurities in water such as silt, rust, blood worms can be intercepted by the filter screen, so that the system plays a role of protecting the integrated compound filter element and the service life of the integrated compound filter element is prolonged, and moreover, the pressurizing pump can be further protected. Furthermore, the filter screen, the pressurizing pump and the integrated compound filter element are separately arranged, so that the filter screen is convenient to disassemble and assemble, wash and replace.

The invention relates to a filter element which comprises an outer sleeve, an inner sleeve, a stainless steel sealing plate and a filter screen, wherein the inner sleeve is used as a support frame of the filter screen, the filter screen is connected onto the inner sleeve in a sleeving manner, the outer sleeve is connected onto the filter screen in a sleeving manner for tightly pressing the filter screen, the outer sleeve is connected with the inner sleeve through welding, the stainless steel sealing plate is welded at one side of the outer sleeve, welding grooves are formed in the outer sleeve, inner sleeve and the stainless steel sealing plate, so as to facilitate welding and splicing, and the filter screen adopts a 50-mesh double-layer stainless steel filter screen. The filter element provided by the invention is wholly made of a stainless steel material, the filter screen is fixed through the outer sleeve and the inner sleeve, the stainless steel sealing plate is adopted at the bottom of the filter element for blocking and welding is applied, so that the whole pressure resistance of the filter element is improved, and the filter element has the advantages that the structure is simple and reliable, the processing is simple, the manufacturing cost is low, the use and replacement are convenient, the service life is long, the storage is convenient and the like, and is easy to popularize.

The invention relates to a water / heat meter with a dispenser casing (6) and a metering device (10), wherein the metering device includes a transmitter. The dispenser casing (6) is formed as a composite part made from a plastic part (7) and a metal tube (1) a part of which is poured in the plastic part. The invention is also included for a method for producing a transmitter housing for a water / heat meter. According to the invention, an opening (4) is processed in a metal pipe, especially in a steel pipe wall and then the metal pipe is put into an injected mold and is partly enclosed by plastic in the injected mold.

The invention relates to the related technical field of diesel generating sets, and particularly relates to a cooling system for a diesel generating set. The system comprises a diesel generating set water-cooling circulation system and a water storage tank for storing cooling water, the water storage tank is a rectangular box structure, and a rectangular notch is formed in the upper surface of the box; and a spray header is fixedly mounted at the notch, the spray header is erected at the edge of the rectangular notch in the upper surface of the box body, and a spray header liquid inlet pipeline is arranged at the upper end of the spray header. The water storage tank used for storing the cooling water is arranged to cool the cooling water in the water-cooling circulating system of the diesel generating set so that the cooling water in the water-cooling circulating system of the diesel generating set can be recycled; and the spray header is arranged at the upper end of the water storage tank so that the cooling water flows into the water storage tank in a spraying mode through the spraying header, and the cooling water can be cooled more quickly when entering the water storage tank.

The invention provides a light landscape building structure of a three-dimensional structure based on PLC control. The light landscape architecture structure comprises six building support rods, two building support rings and LED landscape lamps; planting slots are rectangular groove structured, and a water storage column in cylindrical hollow structure is installed in the middle of the planting slots; the building support rods are installed on the top end face of the water storage column in a surrounding manner, and tops of the building support rods are curved and inclined; a rainwater filterframe is circular structured and is installed in the top of the water storage column; upper and lower ends of a glass pane are respectively connected with the building support rings. By the arrangement, the funnel-shaped frame structure is formed by the building support rods and the building support rings so that the LED landscape lamps and reflector lamps can be respectively installed at the upper and lower ends of the funnel-shaped frame structure, and the three-dimensional presentation effect of the building structure at night is improved by using the light to embellish the funnel-shaped frame structure of the building support rods and the building support rings.

The invention discloses a special sampling base station for water quality detection, which relates to the technical field of water quality detection and includes a chassis, a storage battery, a controller, a sampling mechanism and a sampling terminal. The sampling mechanism includes a water distribution tank, a water distribution pipe, a water storage tank, a water distribution tank and a water distribution pipe The first water pump and the second water pump are connected between them; the water distribution pipe is connected to the sampling end through the first water pipe, and the first solenoid valve is installed on the first water pipe; the water distribution tank is connected to the plug-in pipe head through the second water pipe; One end is a tip, and the tip is inserted into a rubber stopper sampling bottle. There are a first pipe and a second pipe inside the tube, and a second solenoid valve is connected to the tube. The pipe is connected with a first one-way valve, the second water pipe is connected with the first pipe, the second water pipe is connected with a branch pipe, and the branch pipe is connected with a second one-way valve; the first solenoid valve, the second solenoid valve, the battery and the controller Evenly connected. The invention improves the convenience and quality of sampling.

The invention discloses preparation equipment for rapid aquatic plant rooting nutrition powder and a preparation method thereof and relates to the technical field of aquaculture techniques. The preparation equipment for rapid aquatic plant rooting nutrition powder comprises a rack, wherein a control box which is internally provided with a controller and a temperature controller is mounted on oneside wall of the rack through a support rack; a support plate which is horizontally arranged is fixed at the lower part inside the rack; a compacting machine is mounted in the middle position of the top of the rack; and a crushing machine is fixed on one side of the top of the rack. The preparation equipment is provided with a rotating structure, materials can be stirred by using a stirring rod and a connecting rod under the action of a rotating cylinder from different directions, furthermore, multi-direction material mixing can be achieved, the mixing efficiency of the materials can be improved, and thus the production benefit of the equipment can be increased; and in addition, in the material mixing process, a scraping rod is rotated together, so that the inner wall of a case can be scraped, resource waste caused by the situation that the materials are adhered to the inner wall of the case can be avoided, furthermore, resources can be saved, and the production cost can be lowered.

The invention provides a sheep house easy to clean in rural areas, and belongs to the field of breeding. The sheep house easy to clean in rural areas comprises a sheep house wall body and a cleaning board, wherein the sheep house wall body is a three-sided enclosing wall, and has an opening at the rear side; the upper end of the sheep house wall body is provided with a roof, and both sides of the roof are inclined downwards; the lower side of the roof is horizontally provided with a heat insulation plate, and a box trough runs through the lower end of the left portion of the sheep house wall body horizontally; left and right sides of the box trough are opened, and the inner bottom surface of the box trough is provided with a chute; a feed trough body is arranged in the chute in a clamped mode, and the right side of the feed trough body is opened. The sheep house easy to clean in rural areas can be used for corralling sheep, and the heat insulation plate is used to isolate the sheep house from the outside temperature and avoid an excessively high temperature in the sheep house in summer; vents are used for enhancing air circulation inside the sheep house, dispersing odors, and reducing the breeding probability of bacteria in the sheep house; when a farmer needs to feed the sheep, the feed trough body slides along the chute to the outside of the sheep house, fodder and food can be placed in the feed trough body, and then the feed trough body can be enabled to slide into the sheep house so that feeding of the sheep can be facilitated.

The invention belongs to the field of automobile auxiliary devices and specifically discloses a water level detection structure of a vehicle-mounted water storage tank. The water level detection structure of the vehicle-mounted water storage tank comprises a detection bucket, wherein an L-shaped channel is disposed inside the detection bucket, a sealing ring is disposed on the side wall of the detection bucket, and an inner hole of the sealing ring is communicated with a horizontal section of the L-shaped channel; a floating ball contacted with the wall of the L-shaped channel is disposed inside a vertical section of the L-shaped channel, an upright rod is disposed on the floating ball, and sawteeth are disposed on the upper part of the upright rod; and a dial firmly connected to the detection bucket is disposed on the top part of the detection bucket, a gear matched with the sawteeth is disposed on the dial, the gear is rotationally connected to the dial, and a pointer is disposed on the gear. The detection structure is characterized by high reliability and timely response to specific situations of a water level in the water tank.

The invention discloses an aquatic product culture net cage. The aquatic product culture net cage comprises a carrying plate, wherein a plurality of support rods are fixedly arranged on the side of the upper end of the carrying plate, a culture cage is arranged at the upper end of the carrying plate, the lower end of the culture cage is fixedly connected with a bottom plate, a separation plate isarranged at the upper end of the bottom plate, the separation plate is fixedly connected to the inner wall of the culture cage, a feeding box is arranged in the culture cage, a plurality of fixed rodsare fixedly connected to the outer wall of the feeding box, the other ends of the plurality of fixed rods are fixedly connected to the inner side of the culture cage, an annular floating plate is fixedly connected to the upper ends of the plurality of support rods, a plurality of floating blocks are connected to the outer side of the annular floating plate, a plurality of lantern rings are arranged at the lower end of the outer side wall of the culture cage, and hooks are arranged at the lower ends of the plurality of support rods. The aquatic product culture net cage is simple in structure and convenient to operate, the water quality and air in the aquatic product culture net cage can be kept well, and rapid and healthy growth of aquatic products is guaranteed.

The invention relates to a method for controlling alga pollution of a water body at a water intake of a water plant. The method is characterized in that a surface aerator or an artificial fountain is provided at the water intake of a water plant and is started for water spraying as needed. According to the method provided in the invention, since water is sprinkled onto the surface of a water body through arranging the surface aerator or the artificial fountain and starting the surface aerator or the artificial fountain for water spraying as needed, overgrowth of algae at a water area around the water intake can be effectively avoided, and blue algae generated in the surrounding water area are prevented from entering, thereby avoiding the influence on the quality of drinking water by harmful blue algae entering into a water purification procedure of the water plant; furthermore, sprayed water allows the temperature of surface water of the water body to be decreased to some extent, thereby reducing propagation of algae in the water body at the water intake. The method in the invention has the advantages of a simple design, convenient operation, high feasibility, low cost, easy popularization and an obvious control effect.

The invention discloses a negative-pressure resistance water supply device for a high-rise building and a use method of the negative-pressure resistance water supply device. The negative-pressure resistance water supply device comprises a first water press chamber, a second water press chamber, a negative-pressure resistance box, a water pump unit and a control box. The negative-pressure resistance box communicates with a municipal pipe network, a water pressure gauge and a first electromagnetic valve are arranged at the tail end of the municipal pipe network, a water level detector is arranged in the negative-pressure resistance box, the negative-pressure resistance box communicates with the water pump unit through a pipeline, the water pump unit communicates with the first water press chamber and the second water press chamber through water inlet pipes, and the water inlet pipes are provided with a second electromagnetic valve and a third electromagnetic valve. The bottom of the first water press chamber and the bottom of the second water press chamber communicate with drain pipes, the drain pipes are provided with a fourth electromagnetic valve and a fifth electromagnetic valve,and the drain pipes communicate with a high-rise user pipe network. A first air pressure control gauge and a second air pressure control gauge are arranged at the tops of the first water press chamber and the second water press chamber. The negative-pressure resistance water supply device can effectively solve the problems of easy pollution in a water tank of an existing water supply device, thefailure of water supply when the municipal pipe network is abnormal, and continuous operation of water pumps easily causes negative pressure in the municipal pipe network.

The invention relates to the technical field of fish culture, in particular to a novel culture pond. The novel culture pond comprises a pond body and further comprises a blow-off pipe, an overflow pipe, a separation net and aeration pipes, wherein the upper part of the pond body is in a cuboid shape, the lower part of the pond body is in a hopper shape, the blow-off pipe is fixed to the center of the bottom of the pond body, a ball valve is arranged on the blow-off pipe, the separation net is located above the blow-off pipe, the edge of the separation net is connected with the inner wall of the pond body, the aeration pipes are fixed on the inner walls of the two adjacent sides of the pond body, and the pipe orifice of the overflow pipe is fixed at the intersection vertex of the inner walls of the two sides, not provided with the aeration pipes, of the pond body. Excrement in the culture pond can be discharged through the blow-off pipe at the bottom of the pond body, and uneaten feeds, oil dirt and other floating objects floating on the water surface are discharged from the overflow pipe, so that the floating objects on the surface of the culture pond are cleaned, the quality of water in the culture pond is guaranteed, and the problem that the yield and the quality of fishes are affected due to the fact that the water in the culture pond is prone to eutrophication is solved.

The invention discloses an efficient algae fishing device based on water environment treatment. The efficient algae fishing device comprises a cutting mechanism, and is characterized in that separation mechanisms are arranged on two sides of the cutting mechanism, the cutting mechanism is connected with the separation mechanisms through pipelines, a fishing mechanism is arranged between the two separation mechanisms, and the separation mechanisms are connected with propeller mechanisms through pipelines. The cutting mechanism comprises a cutting assembly, a protection assembly and a detection assembly, the protection assembly is located on the periphery of the cutting assembly, the detection assembly is located below the cutting assembly, the cutting assembly comprises a rotating shaft, a fixing plate is arranged on one side face of the rotating shaft, a telescopic blade is hinged to one side of the fixing plate, a curved rail is arranged on the surface of the fixing plate, a guide handle is arranged on one side of the telescopic blade, the curved rail and the guide handle are of a matched structure, and an inner rotating shaft is arranged in the center of the rotating shaft. The efficient algae fishing device based on water environment treatment has the advantages of high fishing efficiency and comprehensive functions.

The invention provides a method for de-silting a lake and constructing a lake center island and belongs to a construction technology. The method comprises the following steps of: de-silting and dredging, transporting sludge, carrying out storage yard treatment, curing the sludge, discharging tail water and constructing the lake center island while de-silting. The method disclosed by the invention solves the problem that old problems of de-silted lake water happen again. The engineering cost is reduced, the work period is shortened and the secondary pollution is managed. The method has the characteristics of smaller occupied space, no transferring of pollutants, investment saving and good benefits. According to the method disclosed by the invention, the swampiness problem is solved, the water storage amount is increased, a land resource is increased, a wetland park is established and the pollution recycling is realized. The method is a practical and feasible good method for managing and beautifying the lake.