148 results about "Mariculture" patented technology

The invention discloses a biological adhesion prevention nano-composite coating for a marine aquaculture netting and a coating process of the biological adhesion prevention nano-composite coating. The coating slurry is composed of a waterborne polyurethane dispersion, an antifouling functional filler and an auxiliary agent; the antifouling functional filler is nano microspheres formed by encapsulating capsaicin by using hydrogenated rosin as a wall material. The preparation method comprises the following steps: preparing the nano-microspheres through a specific process, and dispersing the nano-microspheres in water-based resin to obtain slurry; performing air low-temperature plasma pretreatment on the netting to improve the surface activity; and finally, coating the surface of the netting with the slurry and curing. The problems of dispersion and controllable slow release of natural hydrophobic antifouling components are solved through a nano packaging technology, and meanwhile, the ultrahigh adhesive force of the coating on a flexible hydrophobic base material is realized through a plasma interface activation technology. The two components have a synergistic effect, so that the coating has the outstanding advantages of environmental friendliness, long-acting antifouling property and firm adhesive force, and the technical bottlenecks that the traditional environment-friendly coating is easy to peel and short in service life are effectively overcome.

The invention belongs to the technical field of water quality prediction, and particularly relates to a water quality dynamic prediction method and system in a marine ranch culture environment, and the method comprises the steps: collecting historical water quality time sequence data, and carrying out the standardization processing; decomposing the standardized water quality time sequence data into a trend component and a season / disturbance component, and performing multi-scale feature coding; based on the seasonal multi-scale features, dynamically adjusting the frequency domain resolution through fractional Fourier transform, and obtaining time domain enhancement features after inverse transformation in combination with multi-head self-attention; based on trend multi-scale features, calculating a Pearson correlation matrix to form a mask matrix, and calculating output channel frequency domain enhancement features in combination with a mask attention mechanism; utilizing a global time sequence attention mechanism to obtain a globally enhanced trunk feature; and performing dynamic gating fusion on the three paths of features to obtain a fused spatial-temporal feature, inputting the fused spatial-temporal feature into a prediction head, and outputting a future value of the water quality time sequence data.

The invention discloses a composite inducer for promoting adhesion and metamorphosis of marine bivalve mollusk larvae and an application method of the composite inducer. The composite inducer for promoting adhesion and metamorphosis of the marine bivalve mollusk larvae comprises glutamine, glutamic acid, potassium chloride, calcium chloride and taurine, and the concentration ratio of the glutamine to the glutamic acid to the potassium chloride to the calcium chloride to the taurine is 1: 1: 2 * 10: 1.7 * 10: 4. According to the application, glutamine, potassium ions, calcium ions, glutamic acid and taurine are matched, the application effect of the glutamine, the potassium ions, the calcium ions, the glutamic acid and the taurine in the aspect of improving the attachment and metamorphosis rate of the shellfish larvae is defined, the technical blank of multi-component cooperative regulation and control of the attachment and metamorphosis of the shellfish at present is filled, a new solution is provided for bivalve shellfish fry production, and the application prospect is wide. The method is of great significance in promoting healthy development of the mariculture industry.

The utility model discloses integrated mariculture tail water treatment equipment which comprises an electrolysis area, a settling area and an ultrafiltration area which are arranged in a frame, the electrolysis area and the ultrafiltration area are positioned on two sides of the settling area; an electric flocculation device is arranged in the electrolysis area; a plurality of groups of inclined plates are arranged in the settling zone, and a sludge compacting device is arranged at the bottom; according to the tail water treatment device, tail water can be treated, the efficiency is high, and secondary pollution to the tail water is avoided.

This invention provides a slow-release feed device for marine aquaculture, relating to the field of marine aquaculture technology. It includes a rotating drum, a drum cover, and a fixed shaft. A rotating impeller is mounted on the rotating drum, which is connected to the drum cover to form a cylindrical space. The fixed shaft passes through the central axis of the rotating drum and drum cover and is rotatably connected to them. A cake holder, a feed cake, and a cake brush are installed within the cylindrical space. The cake holder is fixedly connected to the fixed shaft, and the feed cake is mounted and fixed on the cake holder. The cake brush rotates synchronously with the rotating drum, brushing the surface of the feed cake to accelerate slow release. Utilizing ocean currents or the up-and-down movement of seawater, the rotating impeller drives the rotating drum to rotate, which in turn drives the cake brush to continuously brush the slow-release flocculated layer formed on the surface of the feed cake. This effectively accelerates the diffusion and release of feed particles, solving the problem of excessively long natural slow-release time for feed cakes and their inability to pass through a 150-mesh or finer silk sieve, thus meeting the needs of aquaculture such as oyster farming.

The invention provides a portable welding device for construction of a marine ranch breeding platform, belongs to the technical field of marine ranch breeding platforms, and solves the technical problem of rapid adaptation of clamps for steel pipes with different pipe diameters of breeding components. A portable welding device for a marine ranch breeding platform comprises a movable table and a separation frame, the two ends of the top of the separation frame are each fixedly connected with two supporting frames, the tops of the two supporting frames on the same side are each fixedly connected with the same rectangular frame, and a first lead screw is rotationally connected between the two ends of the interior of each rectangular frame; and each first lead screw is in threaded connection with a threaded connection block. According to the steel pipe welding device, steel pipes of different specifications can be fixed and adjusted, the universality and adaptability of the device are improved, the welding requirements of the steel pipes of different sizes in a marine ranch breeding platform can be met, shaking and deviation of the steel pipes in the welding process are reduced, and therefore the quality of welding joints is ensured; and the welding precision and reliability are improved.

This invention provides an intelligent control method and device for automatically extracting seawater, belonging to the field of automated control technology for mariculture. The method acquires current time, geographical location, and tidal time data; uses a water level sensor to detect whether the current water level has reached a preset threshold; and uses a water quality sensor to detect the water's conductivity to determine if it is seawater. When the water level meets the standard, the water is confirmed to be seawater, and the current time is within the high tide period, the pumping equipment is automatically started. The device includes a water level sensor, a water quality sensor, a communication module, a positioning module, a control module, and a relay control interface. This invention, through a multi-condition verification mechanism, avoids misjudgment due to rainfall and water accumulation and malfunctions caused by tidal fluctuations, achieving fully automated intelligent control of seawater extraction operations. It solves the problems of high labor intensity, high risk of nighttime operations, and frequent malfunctions associated with traditional manual operations, thus improving the production efficiency and safety of mariculture.

The marine ranch net cage cleaning robot comprises a main body structure, a shovel type collecting assembly, a power assembly and an adsorption roller assembly. A main body structure comprises a rack, an electric control cabin and a front-end vision module, wherein the electric control cabin is fixedly connected with the rack; the shovel type collecting assembly is installed below the rack, and a working part faces forwards. The power assembly comprises vertical propellers and transverse propellers, the four vertical propellers are arranged on the front side and the rear side of the rack respectively, and the two transverse propellers are arranged on the two sides of the shovel type collecting assembly. The adsorption roller assembly comprises adsorption type net surface rollers and a roller driving mechanism, the two groups of rollers are arranged outside the vertical propeller at the rear part of the rack in a covering manner, and wheel surfaces are positioned in the wave making direction of the propeller. The adsorption type net surface roller is made of polyurethane and is driven by a driving mechanism to rotate. The adsorption type net surface roller of the device not only adsorbs small attachments through high polymer materials, but also is matched with the reverse thrust of the underwater propeller motor to jointly achieve stable attachment of the robot and the net cage, and an independent adsorption device is not needed.

The invention discloses a wave-light combined energy supply observation buoy for a marine ranch cluster. The wave-light combined energy supply observation buoy comprises a transparent hemispherical shell, a cylindrical shell, a photovoltaic power generation system, an oscillation floater type wave energy power generation device and a mooring system. The photovoltaic power generation unit on the inner surface of the hemispherical shell utilizes sunlight to generate power and inputs the power into the energy storage battery; the bottom of the cylindrical shell is connected with the mooring system and anchored to the seabed; an inertia pendulum power generation module of the wave energy power generation device is installed in two vertical directions, when the inertia pendulum power generation module is excited by random waves, the device captures multi-degree-of-freedom energy in sea waves for power generation, and the multi-degree-of-freedom energy is input into an energy storage battery after being rectified. The energy conversion structure of the power generation device is simple and integrated in the equipment, and the damage of seawater to a core power generation part can be prevented during working; two power generation mechanisms of solar energy and wave energy are combined to realize power generation in different sea areas and under different wave conditions, the energy output efficiency is effectively improved, and the stored electric energy can continuously supply energy to various sensors in the drifting buoy so as to prolong the endurance time of carried observation equipment.

The invention discloses application of pseudoarthrobacter in synchronous nitrogen and phosphorus removal of low-carbon high-salt mariculture wastewater, the preservation number of the pseudoarthrobacter is CCTCC AB 205501, and the pseudoarthrobacter is preserved in the China Center for Type Culture Collection. Under low-carbon and high-salt conditions, in ammonia nitrogen, nitrate and mixed nitrogen source wastewater, the removal rate of phosphate in 72 hours exceeds 95%, the highest removal rate of ammonia nitrogen can reach 100%, and the highest removal rate of total inorganic nitrogen can reach 98% or above. The efficiency is obviously superior to that of the traditional method, and the treatment time and energy consumption are reduced.

The invention provides a deep and far sea self-sustaining fishing light wave complementary comprehensive power generation system, and belongs to the technical field of comprehensive power generation systems, and the deep and far sea self-sustaining fishing light wave complementary comprehensive power generation system comprises a sea light energy power generation system which is installed at the top of a floating platform; the wave energy power generation device is installed between the supporting stand columns of the floating type platform, and the wave energy power generation device comprises an oscillating floater, a power output system and an adjustable balance weight structure; the gravity type culture net cage system is fixed below the floating type platform, the shape of a net cage is kept through a counterweight system and an anchorage system, and the intelligent culture function is achieved through electric energy generated by a wave energy power generation device; a buoyancy structure of the floating platform and a buoyancy structure of the gravity type aquaculture net cage are shared, and the technical problems that due to independent development of offshore photovoltaic power generation, wave energy power generation and mariculture in the deep and far sea environment, the space utilization rate is low, energy supply is difficult, and collaborative optimization capacity is lacked are solved.

The invention belongs to the technical field of environmental engineering and pollution treatment, and particularly relates to an ecological intensive mariculture tail water intelligent treatment system and method.The ecological intensive mariculture tail water intelligent treatment system comprises a pretreatment and solid waste recycling module, a primary purification module, a biological collaborative purification module and a deep purification module; the pretreatment and solid waste recycling module comprises a high-density sedimentation tank, the primary purification module comprises a microalgae open pond, the biological collaborative purification module comprises a mixed culture area, and the deep purification module comprises an artificial wetland area. An outlet in the upper end of the microalgae open pond is connected with an inlet in the upper end of the mixed culture area through a pipeline I; according to the system, a biological treatment mode is adopted, the inherent defect of a single method in the prior art is overcome, standard discharge of mariculture tail water is achieved, green, ecological and efficient development of the breeding industry is promoted, and the win-win situation of ecological environment protection and economic benefit improvement is achieved.

The application discloses a kind of Phascolosoma esculenta seedling cultivation methods, it is related to the technical field of mariculture.(1) parent culture;(2) labor induction;(3) sea ball larva cultivation;(4) the preparation of benthic cultivation pool;(5) planktonic larva metamorphosis induction;(6) the cultivation management of benthic larva.The application can effectively improve the efficiency of feeding sea mud of creeping stage larva, improve the dissolved oxygen in silt substrate, reduce the low dissolved oxygen caused by accumulated water during the process of dry, and the high mortality rate.

The application discloses a filter dam for treating tail water of mariculture, which comprises a dam foundation, a front water retaining dam and a rear water retaining dam, wherein the front water retaining dam and the rear water retaining dam are arranged on the dam foundation respectively, and the front water retaining dam and the rear water retaining dam are located on the water-approaching side and the water-backing side of the dam foundation respectively; a water inlet is arranged on the water retaining dam; a liftable weir gate is arranged in the water inlet; side filter dam bodies are oppositely arranged on the two sides between the front water retaining dam and the rear water retaining dam; a water inlet channel is formed in the passage between the side filter dam bodies; a settlement wall is arranged on the inner side of the side filter dam body; and a gap is arranged between the settlement wall and the side filter dam body, which forms a buffer zone. The filter dam has the advantages of simple structure, large filtering capacity, difficulty in blocking, stable operation and convenience in replacing the filler.

The present application relates to sewage biological treatment technical field, provide a kind of based on function bacteria group-microalgae-pyrite composite system enhanced synergistic aerobic granular sludge and its preparation method.Characteristics are that the method is composed of four steps of pyrite pretreatment, bacteria-algae synergistic acclimation inoculation, aerobic granular sludge induction formation and mature stable aerobic granular sludge.The present application constructs the trinity system of "pyrite-function bacteria group-microalgae", and makes three form physical-chemical-biochemical synergistic network.The aerobic granular sludge prepared by function bacteria group-microalgae-pyrite composite system enhanced synergistic, when deep treatment mariculture tail water, not only has higher COD, TN and TP removal efficiency, good anti-impact resistance and load capacity, but also can regularly harvest microalgae in system as aquatic feed additive, realize "pollutant→resource" transformation.

The application discloses a strain of Sideropenaeus paramamosain bio-floc high-pond Shajia external sulfur red spirillum HDES1 and application of the strain in purifying inorganic nitrogen and phosphorus in aquaculture water, and belongs to the technical field of microorganisms. The Shajia external sulfur red spirillum HDES1 in the application is screened from a Sideropenaeus paramamosain bio-floc aquaculture high-pond, and has a preservation number of CCTCC NO: M 20191007. It is found through experiments that the strain has a remarkable purifying effect on high-concentration inorganic nitrogen and phosphorus in seawater aquaculture water or tail water, has no adverse effect on cultured Sideropenaeus paramamosain and seawater tilapia, and is helpful to improving the yield of fish and shrimp culture and realizing zero-water-change green ecological culture.

The invention relates to a method for simulating and predicting the dynamic change of oyster reefs in a marine ranch. The method comprises the following steps: step a, drawing a marine ranch seabed acoustic image; b, identifying spatial distribution of oyster reefs in the marine ranch, and converting the spatial distribution into an element map layer; c, selecting oyster biological growth and development influence factors, and converting the factors into a grid map layer; d, all the grid layers and the element layers are imported into a Maxent model, and model fitting parameters are set and run; e, determining a plurality of influence factors with high contribution degrees according to a model operation result; step f, determining an oyster growth suitable area according to a model operation result; and step g, adjusting influence factors with high contribution degrees, and forming a dynamic change prediction result of the oyster reefs in the marine ranch. According to the method, the difficulty of uncertainty of influence factors of the oyster reef can be overcome, the problem of simulation and prediction of development of the oyster reef in a strong-dynamic and high-complexity marine environment is solved, and technical support is provided for research on marine benthic ecology, oyster reef restoration and regeneration and the like.

The invention relates to a seawater stichopus japonicus culture pond environment regulation and control method based on a bottom nourishing device and a mixed microbial agent and application. According to the method, the seawater stichopus japonicus culture pond is subjected to bottom nourishing operation, meanwhile, mixed microbial agents of rhodobacter sphaeroides, phosphorus phagocytosis bacillus, moraxella alpha and enterococcus faecalis are splashed, the water quality of the stichopus japonicus culture pond is improved, meanwhile, the immune function of stichopus japonicus is enhanced, and remarkable environmental and economic benefits are achieved.

The invention discloses an ecological restoration device for a three-dimensional latticed marine ranch, which belongs to the technical field of marine ecological engineering and comprises a net cage frame, a biological filtration module, a nutrient solution supply module and a plurality of sensor systems. The biological filtration module consists of an algae agglutination unit and a shellfish filtering unit and is used for purifying water. A tension sensor and a fiber grating sensor array are arranged on the net cage frame, structural stress changes can be monitored in real time, the damaged position of the netting can be accurately positioned, if damage is detected, the system releases humic liquid through a micro valve, plankton and small fishes are attracted to gather, algae and microorganisms are promoted to adhere and grow at the damaged position, and a biological barrier is formed; the self-repairing of the netting is realized. In addition, the device integrates functions of shellfish behavior monitoring, netting cleaning, pH adjusting and the like, so that the ecological restoration efficiency and the system reliability are improved, and the device is suitable for ecological maintenance and culture management of marine ranches.

The application discloses an estuary area seawater breeding tail water ecological treatment system and relates to the technical field of water treatment. The system comprises a first ditch for receiving tail water discharged from a plurality of breeding areas, a sedimentation tank connected to a water discharge end of the first ditch, at least one oxidation aeration tank connected to a water discharge end of the sedimentation tank, an ecological purification tank with a water inlet connected to a water discharge end of the oxidation aeration tank, and a second ditch connected to a water discharge end of at least one ecological purification tank. The estuary area seawater breeding tail water ecological treatment system enhances water purification effect through a whole and orderly process treatment process, makes different treatment processes more detailed, and maintains the effect of discharging tail water up to the standard.

The invention discloses a mariculture net cage dead fish harmless treatment device, and belongs to the technical field of aquaculture waste, the treatment device comprises a pretreatment box, a stirring assembly is arranged in the pretreatment box, a first motor for driving the stirring assembly is arranged outside the pretreatment box, an air inlet cover is arranged on the outer side of the pretreatment box, and a through hole communicated with the air inlet cover is formed in the pretreatment box; a filter screen is arranged on the through hole, the air inlet cover is externally connected with a steam input pipeline, and steam is fed into the pretreatment box. The device solves the problems of pathogenic bacteria diffusion, aquaculture sea area pollution and epidemic disease transmission caused by direct discarding of the dead fish in the mariculture net cage, can perform sterilization pretreatment on the treated dead fish, and is small in equipment size, low in cost, high in moving and using flexibility and suitable for offshore sites.

The invention discloses an automatic feeding device with binocular vision feedback for fish weight evaluation on a mariculture work ship, which is characterized by comprising an automatic feeding mechanism, a limiting cylinder wall, a binocular vision feedback system, a data connection module and a central controller, the limiting cylinder wall is of a vertically-arranged hollow cylindrical structure, the lower portion of the limiting cylinder wall is submerged into aquaculture water, and the upper portion of the limiting cylinder wall is exposed out of the water surface and used for enclosing floating feed to form a gathering area. The binocular vision feedback system comprises a group of binocular cameras which are fixedly mounted on the inner wall surface of the underwater part of the limiting cylinder wall, the field angle of the binocular cameras covers a water area enclosed by the limiting cylinder wall, and the binocular cameras are used for collecting images of fish schools in the culture cabin. The problem that the image analysis effect of the open water area in the mariculture work ship is poor is effectively solved; the feed utilization rate and the culture economic benefit are remarkably improved, and reliable equipment support is provided for intelligent and refined development of aquaculture of the mariculture industrial ship.

The invention discloses an iron / calcium modified chlorella biochar material for removing phosphorus from mariculture tail water, which comprises chlorella biomass powder, a Fe source, a Ca source and polyethylene glycol 4000, and nitrogen is used as a protective gas in the preparation process. The catalyst is prepared through the steps of chlorella biomass pretreatment, Fe / Ca impregnation liquid preparation, biomass impregnation and pretreatment, anaerobic pyrolysis and the like, the porous structure and the positive electricity surface of the catalyst can strengthen phosphorus adsorption, and phosphorus is removed through the synergistic effect of electrostatic adsorption, ligand exchange, chemical precipitation and physical interception; when the pH value is 3-11 and the salinity is 5-40 per thousand, the phosphorus removal efficiency is high. When in use, the phosphorus removal rate of the tail water reaches 93% or above, the tail water tends to be saturated within 4 hours, the phosphorus concentration of the treated tail water can meet the first-grade discharge standard of 0.5 mg / L or below, meanwhile, resource utilization of the chlorella breeding waste is achieved, additional transfer treatment materials are not needed, and the operation cost and time are saved.

The invention discloses a marine ranch construction system based on an offshore wind plant and a method thereof, and belongs to the technical field of fusion of offshore renewable energy sources and marine ranches. The system comprises a wind generating set, a floating platform and an aquaculture net cage unit, the aquaculture net cage unit is connected with the floating platform through a self-adaptive elastic suspension system, and the self-adaptive elastic suspension system comprises a sensing control unit, a mode switching execution mechanism and an elastic damping assembly. And the rigid connection state and the elastic suspension state can be intelligently switched according to sea conditions. Rigid connection is kept under a normal sea condition to ensure system stability, and an elastic suspension state is converted under a severe sea condition to effectively isolate vibration impact. Meanwhile, the culture net cage unit adopts a netting structure with an adjustable lead angle, the curved surface form can be adjusted according to needs, and netting self-cleaning is achieved. The problem of structural conflict caused by simple superposition of the wind power plant and the marine ranching is solved, and the purposes of structural safety and efficient breeding are achieved.

Disclosed are a method and system for utilizing wind energy in mariculture. The method includes performing fitting on a wind energy power time series and a historical actual wind energy power time series, obtaining a historical fitted wind energy power time series, inputting the historical fitted wind energy power time series into a wind energy power prediction model, and outputting a future wind energy power time series; inputting an obtained historical electricity consumption time series into an electricity consumption prediction model, and outputting a future electricity consumption time series; determining a future wind energy power shortage time series; and sequencing all electric devices in an offshore aquaculture platform based on priorities, obtaining an electric device sequence, and generating an electric device electricity consumption distribution strategy based on the future wind energy power shortage time series and the electric device sequence.

The application discloses a seawater breeding tail water denitrification method under a micro-aerobic condition, which combines an iron-carbon micro-electrolysis system and a microbial denitrification system to jointly denitrify seawater breeding tail water. Under the optimized micro-aerobic condition provided by the application, the iron-carbon micro-electrolysis system and the microbial denitrification system produce a synergistic effect, and the nitrogen removal rate is improved. Compared with the prior art in which the iron-carbon micro-electrolysis system and the microbial denitrification system jointly denitrify, the same or even better nitrogen removal rate can be achieved only by using a shorter time and simple reaction conditions.

The application discloses a ribbonfish breeding system based on a marine ranching platform and belongs to the technical field of deep-sea aquaculture.The scheme of the application comprises a second base frame, a buoyancy assembly is arranged below the second base frame, and a culture net cage is connected below the buoyancy assembly.The buoyancy assembly comprises a first net plate with mesh, and the first net plate is coated with a floating frame with an internal cavity.The scheme of the application has high ecological habit simulation restoration degree, has the ability of resisting typhoons and ocean currents, and can be continuously used in a deep-sea environment.

The invention provides tail water treatment equipment based on mariculture and a method thereof, and relates to the field of mariculture tail water treatment. A hopper is used for feeding, a hose is fixedly connected to an opening in the bottom end of the hopper, and the hose is of a folding structure; the problems that when a ditch treatment mode is adopted in the prior art, purification chemicals need to be put into a ditch to achieve purification, however, due to the fact that the ditch is long when the chemicals are put, the coverage range of pure manual spraying of the purification chemicals is small, large-area putting operation cannot be achieved, and the operation efficiency is low are solved. The problem that the tail water treatment efficiency is low due to the fact that the tail water treatment efficiency is high due to the fact that the tail water treatment efficiency is low is solved, purification medicine entering through a discharging pipe is automatically and efficiently conveyed through synchronous reverse rotation of two feeding wheels, and automatic conveying operation of the medicine can be achieved through linkage of an impeller and the feeding wheels; the labor intensity of workers is reduced, and the sewage treatment efficiency is improved.

The application discloses a method for preparing activated carbon by mixing seawater breeding mud and biomass and application of the activated carbon. The preparation of the activated carbon comprises the following steps: desalination of seawater breeding mud to obtain low-salt mud particles; the low-salt mud particles are uniformly mixed with biomass powder at a ratio of 1:(3-5), pyrolysis and carbonization are carried out under a nitrogen atmosphere at 350-450 DEG C to obtain pre-carbonized biomass material; the pre-carbonized biomass material is uniformly mixed with an activating agent at a mass ratio of 1:(4-5), and mechanical chemical ball milling is carried out in a ball mill tank, then the ball-milled mixture is transferred to a tube furnace, high-temperature activation is carried out under a nitrogen atmosphere at 800-1000 DEG C to obtain activated carbon. The material has a hierarchical porous structure and a high specific surface area, can adsorb and remove various pollutants, especially has a high adsorption capacity for VOCs and CO2, can be mass-produced, has a low cost, is suitable for a wide temperature range, has a long service life and has a good application prospect.