986 results about "Aquatic plant" patented technology

The invention belongs to the field of biochar adsorbing materials, and relates to a method for preparing modified biochar with aquatic plant waste and hematite. The method includes the following steps: (1) naturally drying aquatic plants prior to crushing to obtain aquatic plant powder; (2) crushing the hematite to obtain hematite powder; (3) weighing the hematite powder prior to putting the hematite powder into deionized water, and performing ultrasonic treatment to obtain suspension; (4) weighing the aquatic plant powder, soaking the aquatic plant powder in the suspension, and stirring and drying to obtain fully mixed aquatic plant and hematite mixture; (5) weighing the fully mixed aquatic plant and hematite mixture, putting the mixture in a batch-type atmosphere furnace, and feeding nitrogen into the furnace; performing temperature programming to the target temperature, and maintaining final-temperature pyrolysis; after the pyrolysis process is finished, obtaining the target product, namely the modified biochar. The modified biochar has strong adsorbability in nitrate and phosphate, high in stability and reusable.

The invention discloses a preparation method of a crown ether functionalized anti-pollution nanofiltration membrane, which comprises the following steps: soaking a membrane of a commercial nanofiltration membrane in pure water, and coating the surface with a double-end epoxy compound ethanol solution; uniformly coating the surface of the membrane with an aza 12-crown-4 methanol solution; and drying the membrane in an atmosphere of 40-90 DEG C to obtain the crown ether functionalized anti-pollution nanofiltration membrane. The nano-filtration membrane is realized by chemically grafting aza 12-crown-4 on the membrane surface of a commercial nano-filtration membrane by utilizing a double-end epoxy compound; compared with a traditional nanofiltration membrane, the crown ether functionalized nanofiltration membrane provided by the invention has the advantages that the electronegativity of the surface is reduced, and the surface is similar to an aquatic plant molecular brush structure, so that the deposition of pollutants on the surface of the membrane can be effectively improved, and the anti-pollution performance of the membrane is enhanced; meanwhile, due to the complexing effect of 12-crown-4 molecules on lithium ions, the lithium ions can be effectively captured, concentration polarization of the lithium ions on the surface of the diaphragm is improved, and then the magnesium-lithium separation efficiency of the diaphragm is improved.

The invention relates to the technical field of wetland ecological restoration. The invention discloses a wetland carbon sink capacity improving method and system based on intelligent regulation and ecological restoration, and the method comprises the steps: laying a multi-parameter sensing network, and monitoring the water level, vegetation growth and soil wetland carbon reserve parameters in real time; obtaining a vegetation NDVI index and surface temperature data, and analyzing the vegetation NDVI index and the surface temperature data to obtain an ecological restoration strategy; according to an ecological restoration strategy, carbon sink dominant plants are combined, and emergent aquatic plants, submerged plants and floating-leaved plants are matched; strengthening the microorganisms, and inoculating a carbon sequestration fungicide; establishing a carbon sink-environmental parameter response model according to the historical intelligent regulation and control data; and inputting the ecological restoration strategy into the carbon sink-environmental parameter response model for analysis, and adjusting ecological restoration data according to an analysis result of the carbon sink-environmental parameter response model. According to the invention, intelligent response to environment change is realized, and the carbon sink efficiency is dynamically optimized.

The invention discloses a movable ecological floating bed device and an ecological restoration method. The device comprises a walking mechanism, and an ecological floating bed is arranged on the walking mechanism; aquatic plants are planted on the ecological floating bed (2); an underwater suspension device (3) is arranged at the bottom of the ecological floating bed (2); the walking mechanism can drive the ecological floating bed to walk in the water body, so that the floating bed drives the aquatic plants and the underwater suspension device to move. The walking mechanism drives the ecological floating bed to walk in the water body, so that the floating bed drives the aquatic plants and the underwater suspension device to move, the water body is in a dynamic disturbance environment, the water body purification effect is improved, the walking mechanism can adjust the height of the ecological floating bed, and in the rainfall period, smooth water passing of a river channel can be guaranteed, and flood drainage is not affected.

The invention discloses a method for killing, preventing and controlling alien species ampullaria gigas in a riverway, and relates to the technical field of alien species prevention and control. According to the distribution position of the detected ampullaria gigas, a plurality of positions where the number of the ampullaria gigas is large are selected for putting trapping cages, and bunchy aquatic plants are bound in the trapping cages through ropes; and feeding a certain proportion of natural enemy organisms of the ampullaria gigas into the trapping cage. The position, number and distribution of the ampullaria gigas are accurately recognized by using the unmanned aerial vehicle carrying the laser radar, the cost effectiveness is good, black carps are accurately put according to the volume of the trapping cage, resource waste caused by blind putting is avoided, the cost of the trapping cage and the bait is low, the overall cost is effectively controlled, natural enemies are put after trapping, the ampullaria gigas capturing and killing efficiency is greatly improved, and the economic benefit is high. The water quality and the aquatic plants are monitored regularly, the ecology is restored in time, the ecological balance recovery of the river channel is powerfully promoted, and a scientific, efficient and environment-friendly solution is provided for prevention and control of the ampullaria gigas.

The invention discloses a lake eutrophication biological treatment system and a dynamic method based on multi-dimensional cooperative regulation and control. Exogenous pollution control, layered biological manipulation and artificial intelligence dynamic feedback are fused, and the method is particularly suitable for moderate eutrophication water bodies with nitrogen and phosphorus exogenous input not completely cut off. According to the gradient filling structure, macromolecular organic matters are intercepted by using shallow coarse particles, and middle / fine particles specially attack phosphate adsorption, so that graded removal of pollutants is realized; fish ingestion and benthic organism disturbance have a synergistic effect, secondary pollution of aquatic plant litter degradation to a water body is reduced, transfer of nitrogen and phosphorus from the water body and plant litters to animal objects is promoted, and the coupled system can reduce the phosphorus release rate of bottom mud, improve the stability of FePO4 precipitation and synchronously degrade sulfides and organic matters in the bottom mud; electric shock damage to benthic organisms is avoided through the micro-current intensity, sulfur metabolites can be used as a nutrient source of submerged plants, and biological self-purification and resource utilization of eutrophic water are achieved.

The invention discloses a rice field crayfish body surface cleanliness improving method based on accurate aquatic plant management and protection and ecological induction, and relates to the technical field of crossing of aquaculture and ecological agriculture. The lifting method comprises the steps that submerged plants are planted in the rice field in February every year, and the submerged plants are trimmed regularly in the cultivation process so that the top ends of the submerged plants can be kept under the water surface; shrimp seeds are put into the rice field, and feed is fed regularly; in the subsequent breeding process, during regular feeding of feed, feeding of crushed pomacea canaliculata is carried out; and after the young crayfishes grow up and shell, catching the crayfishes to obtain the crayfishes with high body surface cleanliness. According to the method, the growth state of the aquatic plants is precisely controlled to construct a natural clean field domain, the functional bait is fed to increase nutrition, meanwhile, friction cleaning is carried out through the feeding behavior, precise fishing is carried out based on the molting period, and therefore the body surface cleanliness of the crayfishes bred in the rice field is improved.

The utility model discloses a multi-filtering-form multifunctional sewage blocking treatment system for a riverway, which comprises a group of soft enclosures which are sequentially arranged along the riverway to form a plurality of independent water purification areas, floating plants and ecological plant floating beds are arranged in the soft enclosures, and a vertical bank slope automatic liftable river water body filtering device is arranged between the soft enclosures. According to the system disclosed by the utility model, through the innovative design of the filter cloth and the application of a plurality of soft enclosures, step-by-step filtration and regional division of a water body are realized, and the filtration efficiency is improved. Meanwhile, the system adopts a hydrophilic high polymer material and a super-hydrophobic high polymer material, and combines biological filtration and physical filtration, so that the water quality is effectively purified. The system is further provided with an in-situ functional treatment area, and the water treatment efficiency and effect are improved by planting aquatic plants and adding functional filler.

The invention discloses a culture tail water resource treatment system based on pearl mussels, which belongs to the technical field of aquaculture and water environment protection and comprises a culture pond, a plurality of first treatment ponds, at least one second treatment pond, a third pipeline and a control unit. Each first treatment pond is connected with the culture pond through a first pipeline, activated sludge is laid in each first treatment pond, and an aeration device and an adsorption filter with the height capable of being adjusted through a lifting mechanism are arranged on each first treatment pond. The second treatment pond is connected with the first treatment pond through a second pipeline, the interior of the second treatment pond is divided into a phycomycete symbiotic area and a water quality purification area, the water quality purification area sequentially comprises a supporting layer, an adsorption layer and a substrate layer from bottom to top, and various aquatic plants are planted in the substrate layer. The third pipeline is connected with the second treatment pond and the culture pond to form a closed water treatment circulation loop. The control unit is responsible for monitoring and regulating the operation state of the system. According to the system, efficient purification and resource recovery of aquaculture tail water are realized through multi-stage treatment and cyclic utilization.

The anti-blocking submersible pump comprises a pump body, the pump body comprises a driving part, a pump cavity part and a liquid inlet part, the pump cavity part is located between the driving part and the liquid inlet part, the pump cavity part is provided with an impeller, the driving part is provided with a driving rod, the liquid inlet part is provided with a liquid inlet cylinder and a cutting cylinder, the liquid inlet cylinder is arranged on the outer wall of the cutting cylinder in a sleeving mode, and the cutting cylinder is provided with an impeller. The cutting cylinder abuts against the inner wall of the liquid inlet cylinder, the cutting cylinder is connected with the driving rod, the liquid inlet cylinder is provided with a liquid inlet hole, the cutting cylinder is provided with a cutting hole, and the cutting hole is used for cutting aquatic plants. The cutting barrel is arranged, when strip-shaped foreign matter such as aquatic plants penetrates through the liquid inlet hole and the cutting hole to enter the liquid inlet part, the hole wall of the cutting hole of the rotating cutting barrel and the hole wall of the liquid inlet hole have the cutting effect similar to shearing through scissors, and therefore the situation that the aquatic plants enter and wind the impeller is reduced, and the situation that the liquid inlet barrel is blocked is reduced; the working stability of the pump body is improved.

The invention provides a planting device for releasing speed-controlled aquatic plants. The planting device comprises a planting pot for planting submerged plants; the main body is of a double-ship structure; the clamping and putting mechanism is arranged on the main body, the clamping and putting mechanism comprises a rack, a conveying mechanism and a grabbing mechanism used for grabbing the planting pots, the grabbing mechanism is arranged on the rack in a sliding mode so as to move left and right, the conveying mechanism conveys the planting pots to the position below the grabbing mechanism, and the grabbing mechanism grabs the planting pots to the planting mechanism; the planting mechanism comprises a hollow sleeve, submerged plants of the conveying mechanism are moved to the position over the hollow sleeve through a grabbing mechanism, an annular pipe and air bags are further embedded in the inner wall of the hollow sleeve, the air bags are evenly and annularly distributed on the inner circumferential wall of the hollow sleeve, and the annular pipe is communicated with the air bags; the air pump is started to convey air into the annular pipe to inflate the air bag, and the air bag expands after being inflated to extrude the planting pot in the hollow sleeve, so that the planting pot slowly descends, and the planting work of plants is completed.

The invention belongs to the technical field of irrigation equipment, and discloses an anti-blocking water pumping pipe head device for irrigation, which is technically characterized by comprising a water pumping pipe and a protective cover, a filter plate is fixedly mounted in an inner cavity of the water pumping pipe, a central shaft is arranged below the filter plate, and a rotating assembly connected with the central shaft is arranged in the inner cavity of the water pumping pipe; an outer anti-blocking mechanism is arranged on the surface of the protective cover, the outer anti-blocking mechanism comprises a cutting assembly and a driving assembly, an inner anti-blocking mechanism matched with the filter plate is arranged in an inner cavity of the water pumping pipe, and the inner anti-blocking mechanism comprises an inner cutting blade, a supporting assembly, a swing assembly and a rolling assembly. And by arranging the cutting assembly to be matched with the driving assembly, the aquatic plants attached to the outer side of the protective cover can be efficiently and automatically smashed, the situation that the protective cover is blocked by the aquatic plants is effectively avoided, and the water pumping efficiency of the water pumping pipe is effectively improved.

The invention belongs to the technical field of sewage treatment, and particularly relates to an intelligent response filter material, a preparation method thereof and a denitrification deep-bed filter tank. The intelligent response filter material is of a three-layer composite structure and sequentially comprises a carbon source inner core, a transition layer and a wrapping layer from the inner layer to the outer layer; the carbon source core comprises aquatic plant powder, aggregate and reinforced fibers, the transition layer adopts a hydrophilic modified porous carrier, and the wrapping layer adopts a pH responsive polymer. According to the invention, the intelligent response type filter material prepared from aquatic plant straws is adopted, and the pH response type envelope can automatically adjust the release rate of a carbon source according to the pH change caused by the denitrification process, so that intelligent on-demand supply of the carbon source is realized, and the denitrification efficiency and the utilization rate of the carbon source are greatly improved.

The invention discloses a device and method for efficiently purifying and lifting a water body based on aquatic plants, and relates to the technical field of water body treatment. The device comprises a frame, a water body purification mechanism is arranged in the middle of the frame and used for planting aquatic plants, and the water body purification mechanism comprises a lifting assembly which comprises an inner shell fixedly installed in the middle of the frame, and two symmetrically-distributed rotating shafts are rotationally installed in the middle of the inner shell; the waterproof motor drives the rotating shaft to rotate, the driving bevel gear and the driven bevel gear are driven to be in meshing transmission, the screw rotates synchronously, then the fixing frame and the planting platform are pushed to move up and down, and the root soaking depth can be dynamically adjusted according to aquatic plant varieties such as emergent aquatic plants and submerged plants or water level changes; the plant root system is ensured to fully contact with the polluted water body to efficiently absorb pollutants such as nitrogen and phosphorus, and meanwhile, plant submerging caused by too high water level or root system dehydration caused by too low water level is avoided, so that the purification efficiency is remarkably improved.

According to the ecological system intelligent regulation and control technology and the restoration method thereof, a closed-loop metabolism system is constructed by integrating microorganisms, plants, algae, fishes and benthonic animals, and eutrophication is synergistically controlled through nutritive salt reduction and biological regulation and control. A three-layer monitoring network is constructed by adopting the Internet of Things and AI, and an active prevention and control mode of prediction, early warning and regulation is changed from tail-end treatment. The system is composed of a floating bed purification module, a biological regulation and control module, a microbial enhancement module, an intelligent monitoring module and a power control module, the ecological floating bed, the artificial aquatic plants and the aquatic plants are used for purifying water, the filter-feeding fishes and the benthonic animals are used for intercepting nitrogen and phosphorus, and the immobilized filler and the complex microbial inoculants are used for degrading pollutants. A multi-parameter sensor and an AI algorithm monitor, feed back and early warn in real time and generate a purification strategy, and autonomous movement and strategy adjustment of the equipment are achieved. The technology is suitable for lakes, reservoirs, river channels and other water areas, has the advantages of efficient purification, stability, intelligent regulation and control, environmental friendliness and the like, and has wide application prospects.

The utility model relates to a sewage treatment system based on MABR and carbon capture. The sewage treatment system comprises an MABR reactor, an algae pool and an aquatic plant pool, the MABR reactor is used for purifying introduced sewage by utilizing an MABR technology; the algae pool is respectively communicated with an exhaust port of the MABR and a water outlet of the MABR and is used for culturing algae by utilizing waste gas and treated sewage, purifying the sewage and releasing oxygen; the aquatic plant pond is communicated with the water outlet of the algae pond and is used for culturing aquatic plants, harmful substances in sewage flowing out of the algae pond are adsorbed by the aquatic plants, and the treated sewage flows out through the water outlet of the aquatic plant pond. According to the sewage treatment system, the carbon emission of the treated sewage is reduced, the utilization rate of the treated sewage is improved, and the discharged sewage can reach the emission standard after being purified in multiple links, so that the sewage treatment of small and medium-sized sewage treatment plants is more environment-friendly.

The invention discloses a channel floating aquatic plant intelligent identification method, device and equipment, a medium and a product, and relates to the field of image identification. The method comprises the following steps: acquiring a remote sensing image of a target channel area; processing the remote sensing image by adopting a self-adaptive white balance algorithm so as to adjust image color and brightness distribution and obtain an adjusted image; carrying out resolution enhancement processing on the adjusted image by adopting a Lanczos interpolation algorithm to obtain an enhanced resolution image; using an improved YOLOv11 detection network to identify the enhanced resolution image based on multi-scale perception and a global attention mechanism to obtain an identification result; the identification result is used for providing a basis for obstacle removal and salvage of aquatic plants in the target channel. The invention aims to improve the detection precision and realize high-confidence detection in a complex environment.

An ecological combined constructed wetland system for rare earth mine tail water treatment is characterized in that a downward vertical flow wetland and an upward vertical flow wetland of a three-stage combined wetland system are communicated through a bottom communicating pipe, and the upward vertical flow wetland and a floating island wetland are communicated through an upper overflow weir; the tail water treated by the sewage adjusting tank sequentially flows through the downward vertical flow wetland, the upward vertical flow wetland and the floating island wetland; each of the downward vertical flow wetland and the upward vertical flow wetland comprises a filler layer with a three-layer structure, and the upper layer is a plant substrate layer and is composed of fine sand or sandy loam; the middle layer is a functional material layer and is composed of hematite, zeolite or activated carbon; the lower layer is a supporting layer and is composed of coarse sand or gravel; and the aquatic plants of the floating island wetland adsorb pollutants in the water body through root systems, and decompose residual pollutants by utilizing the metabolism of the plants. The tail water treatment device can efficiently remove particular pollutants such as ammonia nitrogen, nitrate nitrogen, heavy metals and rare earth elements in the tail water of the rare earth mine.

The present application relates to the field of sewage purification, and discloses a household micro sewage treatment system and a sewage treatment method, which comprises the following steps: building a septic tank; preparing a household micro sewage treatment system, an aeration system and suspended filler for microbial attachment; pumping clarified liquid by a lifting pump, and the clarified liquid enters a contact oxidation zone, and microorganisms degrade COD and BOD in the clarified liquid; the clarified liquid at the contact oxidation zone flows into an electrocoagulation zone, and electrocatalytic flocculation is performed; then, pollutants and phosphorus in the clarified liquid are filtered by a filtering zone, and the clarified liquid forms purified water; the purified water is taken from a water outlet zone, and is used for crop irrigation; or, a landscape zone for breeding aquatic plants or plankton is arranged at the water outlet zone. In the present application, the contact oxidation zone, the electrocoagulation zone, the filtering zone and the water outlet zone are sequentially and continuously arranged from bottom to top, and the arrangement structure of the whole household micro sewage treatment system is compact, and it is more convenient to arrange the system in a separate house environment in rural areas.

The invention provides an ecological reinforcing structure of a river channel grouted rubble retaining wall revetment, the ecological reinforcing structure takes double-row pile foundations and a planting platform as a core design concept, the first pile foundation is located at the foot of an existing grouted rubble retaining wall, the top of the pile foundation is provided with a reinforced concrete guide beam, and the second pile foundation is located at the foot of the existing grouted rubble retaining wall; the newly-built guide beam is connected with an existing grouted rubble retaining wall base into a whole through embedded steel bars, the integrity and the anti-sliding capacity of the retaining wall are remarkably enhanced, and base emptying and wall body deformation are effectively restrained. The second pile foundation structure is a planting pile and backfill soil behind the planting pile to construct an aquatic plant planting platform, geotechnical cloth is laid between the planting pile and the backfill soil, soil particle loss can be prevented, water is allowed to freely permeate, and normal exchange between water and soil is maintained. The stability of an existing retaining wall is guaranteed, an aquatic plant planting platform is constructed, the whole reinforcing system is hidden under the normal water level, the natural form of a river channel is maintained, and deep integration of ecology and safety is achieved.

The invention discloses a low-flow-speed river microorganism and aquatic plant cooperated water environment purification method, and belongs to the technical field of water environment purification. According to the invention, the problems of high cost, easy secondary pollution and the like in the prior art are solved, the adjustment strategies generated in S2 and S3 are comprehensively analyzed and optimized through a fusion algorithm, the strategy weight is dynamically adjusted according to the importance and emergency degree of the water quality index, and the comprehensive adjustment strategy is executed by means of a cooperative control platform; the system can quickly respond to the water quality change, can more accurately adjust the putting amount and putting frequency of a microbial agent, and optimizes the working condition of a micropump and the planting configuration of aquatic plants, so that the water quality purification efficiency is remarkably improved, and the river water quality is quickly improved; by optimizing the planting configuration of the aquatic plants and maintaining the efficient root system-biological membrane electroactive symbiotic purification effect, balance and stability of a water body ecological system are promoted, and continuous optimization of the whole purification process is ensured.

The invention discloses preparation and application of aquatic plant extracellular vesicles with an intestinal barrier regulating function, and belongs to the field of bioengineering technology and health food. The method mainly comprises the following steps: efficiently extracting aquatic plant extracellular vesicles by utilizing a tangential phase flow technology, and researching the functional activity of the aquatic plant extracellular vesicles. The obtained extracellular vesicles have good intestinal stability and biocompatibility, and also have significant antioxidant activity and anti-inflammatory effect. In a carbon tetrachloride induced chronic hepatic fibrosis model, the extracellular vesicles can reduce LPS (Lipopolysaccharide) generated by excessive reproduction of intestinal microorganisms from entering the liver by regulating intestinal tight junction protein, so that the liver inflammation is relieved. In addition, the extracellular vesicles can also regulate intestinal flora and immune barriers, and inflammatory response caused by chronic hepatic fibrosis is relieved through the intestinal liver axis. The extracellular vesicles prepared by the method have wide application prospects and economic benefits in anti-inflammatory drugs, nano-drug carriers and functional skin care products.

The invention discloses a three-dimensional water ecological restoration method based on an ecological system, and the method specifically comprises the following steps: S1, carrying out the construction of a temporary dam for a river channel of a construction area, and carrying out the water ecological operation and water level reduction for the construction area; impurity cleaning is conducted on the river channel area after the water level is lowered; s2, in-situ remediation of the bottom mud: scattering a bottom material modifier in the river channel area after the sundries are cleared to complete the in-situ remediation of the bottom mud; submerged plants are planted; s3, after the submerged plants are planted, an ecological water purification barrier and a biological grid are installed, and water purification is conducted; s4, emergent aquatic plant buffer zone planting, microorganism regulation and control and aquatic animal putting are conducted on the two sides of the river channel, a three-dimensional water ecological restoration network is constructed, and water ecological restoration is completed. Through the synergistic effect of the ecological water purification barrier and the biological grid, rapid and high-strength physical adsorption and microbial degradation of pollutants are achieved, meanwhile, ecological niche is built, and recovery of biological diversity is achieved.

The invention discloses a riverway ecological protection slope, and relates to the technical field of riverway nursing, the riverway ecological protection slope comprises a protection slope body which is sequentially arranged from the slope top to the slope toe, the protection slope body comprises a foundation supporting layer, an ecological structure layer and a vegetation community layer from inside to outside, and the ecological structure layer comprises a geotechnical composite material layer laid on the foundation supporting layer; the geotechnical composite material layer is of a three-dimensional net-shaped structure or a bag-type structure. Complex mechanical transmission, movable parts and sealing structures are completely omitted. The ecological niche complementary mixed planting mode of deep-rooted shrubs, shallow-rooted herbaceous plants and slope toe aquatic plants is adopted, the deep-rooted shrubs can enhance the deep stability of a slope body, the shallow-rooted herbaceous plants quickly cover a slope surface to reduce surface erosion, the aquatic plants are connected with a water and land ecological interface, and the deep-rooted shrubs, the shallow-rooted herbaceous plants and the water and land ecological interface cooperate to form a multi-layer and high-stability vegetation community; the water and soil conservation capacity of the bank slope is improved, diversified habitats are provided for animals and plants, and the natural ecological function of the river bank slope is restored.

The invention discloses a wetland water environment monitoring and sampling device which comprises a supporting frame, a floating assembly connected to the supporting frame and a sampling assembly arranged on the lower surface of the supporting frame. The sampling assembly comprises a sampling barrel for sampling, and a water inlet hole is formed in the sampling barrel; the water stirring piece is arranged on the surface of the sampling barrel; the water stirring piece comprises a mounting ring and a water stirring plate arranged on the mounting ring; at least two notches are formed in the mounting ring, and the number of the water stirring plates is the same as that of the notches; the water stirring plate is rotationally mounted in the notch, and the water stirring plate is tightly attached to the sampling barrel in a normal state and covers and seals the water inlet hole; a driving piece is further arranged on the sampling barrel, and the driving piece plays a role in driving the mounting ring to move up and down; the mounting ring descends to drive the water stirring plate to change from the vertical state to the transverse state, and the mounting ring ascends to drive the water stirring plate to change from the transverse state to the vertical state. The effect of preventing the aquatic plants from blocking the water inlet holes is achieved.

The invention provides a lake water body purification and ecological restoration method based on a biotechnology. The method comprises the following steps: S1, collecting and analyzing basic data of a lake water body; s2, screening and culturing dominant microorganisms; s3, making an ecological restoration scheme; s4, putting a microbial agent and planting aquatic plants; s5, monitoring the water body remediation process; and S6, repairing effect evaluation and scheme adjustment. According to the method, the degradation efficiency and the environmental adaptability to target pollutants are remarkably improved, an efficient functional microbial agent is provided for precise repair, a microbial culture optimization model is constructed by utilizing a dynamic programming algorithm, and a nutrient substance adding strategy and a culture period are precisely regulated and controlled in combination with the growth dynamic characteristics of strains. On the premise of ensuring the concentration and activity of the microbial inoculum, the resource consumption and time cost in the culture process are effectively reduced, the economical efficiency and reliability of microbial inoculum production are improved, and a foundation is laid for large-scale engineering application.

The invention relates to the field of river sluice freezing prevention, in particular to a river sluice bubble type anti-icing structure which comprises two sluice piers and a sluice gate assembly fixedly arranged between the two sluice piers, and a supporting plate capable of moving up and down is arranged between the two sluice piers. A plurality of anti-icing assemblies used for preventing the gate assembly from being frozen are arranged at the bottom of the supporting plate. When the gate assembly is subjected to freezing prevention, in the process that the aeration pipe is used for discharging a large number of bubbles for freezing prevention, surrounding type protection is formed on the aeration pipe through the two corresponding semicircular protection cylinders, and large-size impurities such as aquatic plants and floating garbage can be prevented from making contact with the aeration pipe; the anti-freezing effect is ensured; meanwhile, the cleaning frequency of the aeration pipe is reduced; meanwhile, a plurality of semicircular pile casings which are connected in a closed mode can be horizontally connected in series through the connecting pieces, a filtering barrier can be formed when the gate assembly drains water, floating objects such as aquatic plants and garbage are effectively blocked, and the gate is prevented from being blocked in the water draining process.

The invention relates to the technical field of seawall ecological transformation, and discloses a slope type seawall inner slope ecological transformation method which comprises the following steps: selecting a seawall section suitable for ecological transformation according to three first-level indexes, namely a seawall shoreline foundation, hydrology and water quality conditions and surrounding environment conditions; constructing a pool in the selected seawall section according to the terrain; constructing a pool base; and constructing a plant community in the water pool according to the life type, the phenological period and the salt tolerance of the plant. According to the method, a proper transformation section can be selected in combination with various environmental factors of a transformation area, then a corresponding water pool is constructed in combination with the landform, then a proper ecological material is selected to construct a substrate, and different plant communities are constructed in the water pool according to the characteristics of different plants. A natural-imitated seawall ecological space is built, the flood prevention and tide blocking functions of the seawall are guaranteed, the hygrophytes, aquatic plant communities and planktons can be utilized, an inhabiting and foraging environment is built for aquatic animals and hydrophilic birds, and the ecological service function of the seawall is improved.

The invention discloses a method for preparing a seedling substrate by using aquatic plant residues, and belongs to the crossing field of agricultural waste recycling and environmental protection technologies. According to the method, aquatic plant residues are innovatively separated into two independent material flows, namely solid matters and squeezed liquid, through mechanical squeezing; then, according to the fundamental difference of physical and chemical characteristics of the two, two optimal conversion paths of'oxygen-limited catalytic carbonization 'and'complex microbial inoculant directional fermentation' are respectively designed; finally, functional products (biochar and organic liquid fertilizer) obtained through conversion are integrated in a granulation link, and a uniform and high-performance seedling culture substrate product is created. The core value of the invention lies in that full-quantization and high-value utilization of wastes is realized, and a complete technical closed loop without secondary pollution and with recyclable resources is formed.

The invention provides an ecological slope protection composite structure bearing capacity analysis method which comprises the following steps: collecting the root penetration depth, rhizome diameter, soil porosity and pine pile lateral soil pressure of an aquatic plant through a root growth monitor and a soil pressure sensor, and identifying the change rule of data at different time points; extracting a specific numerical range of root system density change; according to the extracted root density change value range, the strength degree of enhanced cementation of aquatic plant root exudates is identified, the improvement effect of the soil particle cementation degree on the shear strength of the soil body around the pine pile is evaluated, and the speed change rate of rhizome thickening and expanding is determined; according to the obtained optimal combination scheme of the pine pile-aquatic plant composite bearing system, the accuracy of slope protection instability risk point correction is evaluated, and a correction coefficient and a correction period for slope protection bearing capacity calculation are obtained.