30 results about "Eutrophic water" patented technology

This invention discloses a method for extracting eutrophic water bodies based on Landsat 8, comprising the following steps: using a water body as the research object, acquiring data sources within the research area; data preprocessing; determining the eutrophication level of Landsat 8 at different times using validation data (MODIS data); water body extraction and accuracy verification; calculating the Landsat 8 data from different times according to the water body indices MANDWI and ANDWI, respectively, and obtaining the water body extraction results using the Otsu method; through result comparison and random point accuracy verification, the results show that MANDWI has a good water body extraction effect for water bodies with different eutrophication levels. The modified enhanced normalized difference water body index MANDWI of this invention has a good clear water extraction effect and can extract eutrophic water bodies; achieving high-precision water body extraction and expanding the application of remote sensing data in shoreline extraction and water body identification.

This invention relates to an intelligent continuous flow system and method for deep nitrogen and phosphorus removal from wastewater treatment plant effluent with low-activity sludge concentration. Belonging to the technical field of wastewater treatment system purification, the system is designed based on the denitrification phosphorus removal principle. It consists of a nitrification tank, three anaerobic tanks, three anoxic tanks, one aerobic tank, and a sedimentation tank. By measuring the nitrate nitrogen concentration in the effluent and precisely adding an organic carbon source, the system controls the endpoints of nitrification and denitrification reactions online. Due to its short hydraulic retention time, the system can operate at high speed and efficiency, produces no byproducts, and avoids secondary pollution. The purified water meets or exceeds Class III standards of my country's surface water quality standards. This invention provides a better technical solution for addressing the secondary eutrophication pollution caused by surface discharge of effluent from existing wastewater treatment plants and the challenges of upgrading existing wastewater treatment plants. It also has significant implications for the restoration of water quality in water source protection areas and eutrophic water bodies.

The invention relates to the technical field of environmental protection and water treatment, and particularly discloses blue-green algae removal type glass pumice and a preparation method and application thereof. According to the blue-green algae removal type glass pumice, glass pumice serves as a carrier, copper ions are loaded through the processes of pretreatment, solution preparation, load impregnation and aftertreatment, and a copper-loaded glass pumice material is formed. In the preparation process, pore channels are dredged through ultrasonic cleaning pretreatment, the copper ion loading capacity is improved by combining a heating-cooling circulation method, and the final product controls the copper ions to be slowly and continuously released through the carrier and generates synergistic interaction with the algal inhibition effect of the glass pumice. The water body cyanobacteria can be safely inhibited and removed for a long time, and the preparation process is simple, low in cost and suitable for treatment of various eutrophic water body cyanobacteria.

The application belongs to the technical field of microbial application, and relates to a salt-tolerant, dephosphorizing and denitrifying PHA strain and application thereof. Zobellella denitrificans ) ZD10, which has been preserved in the China Center for Type Culture Collection, located in Wuhan, Wuhan University, China, and has a preservation number of CCTCC NO: M 20242632 and a preservation date of November 25, 2024. The strain has the following applications: application in the remediation of eutrophic water bodies and the treatment of high-salt and high-ammonia-nitrogen wastewater; application in the treatment of ordinary ammonia-nitrogen wastewater; application in the treatment of industrial high-ammonia-nitrogen wastewater; application in the treatment of eutrophic seawater; application in the production of PHA by using various carbon sources; and application in marine circular economy. The strain has the functions of simultaneous dephosphorization and denitrification, can realize simultaneous nitrification and denitrification, dephosphorization and the production of raw material PHA with unique physical properties under high-salt (3%) and non-sterilized conditions, and can play a unique role in the construction of a marine circular economy system and the treatment of high-ammonia-nitrogen wastewater.

The invention relates to the technical field of water pollution treatment, in particular to a microbubble enhanced cascade discharge plasma reactor and an algae removal method. The microbubble enhanced cascade discharge plasma reactor provided by the invention adopts a three-electrode coaxial structure, a high-voltage power supply is connected to a middle porous electrode, and the center and peripheral electrodes are grounded to construct an inner-layer gas-phase pre-ionization region and an outer-layer gas-liquid mixed-phase reaction region. Working gas firstly discharges in the inner layer to generate high-concentration active particles, then the high-concentration active particles are sprayed out through the micropores to form a microbubble group carrying active substances, and secondary discharge of the outer layer is induced. Ultraviolet light, shock waves and active substances generated by cascade discharge cooperatively destroy algae cell structures, so that the algae cells are inactivated and flocculated, and rapid separation of algae residues is realized by virtue of a micro-bubble air flotation effect. The method is efficient, low in consumption, free of secondary pollution and suitable for emergency and deep treatment of the eutrophic water body.

This invention discloses a method for the synergistic resource utilization of "candidate organisms of Rhubarb and black soldier fly" mediated by in-situ biomass resource utilization of water hyacinth, belonging to the field of water pollution control engineering technology. The method includes the following steps: harvesting water hyacinth from eutrophic water bodies, performing in-situ biomass resource utilization, crushing, composting, and maturing the biomass to obtain compost products; using the compost products as a cultivation substrate to induce or cultivate candidate organisms of Rhubarb and obtain biomass; pulverizing and conditioning the biomass to obtain a feeding substrate, and feeding the feeding substrate to black soldier fly larvae to achieve biotransformation, separating the larvae and their excrement residue; and returning the compost liquid to the cultivation process for humidity control. This invention solves the three major pain points of existing technologies: secondary pollution, equipment dependence, and high energy consumption with low output value, realizing the full-chain transformation of water hyacinth from "invasive pollutant" to "protein feed resource + organic fertilizer raw material".

Provided herein are systems and methods for energy capture, energy storage, and stored energy translation to mechanical work, having: piston drive pump cylinder tube for housing a first volume of liquid, and a piston drive pump; wherein the piston drive pump is configured for motion; an energy storage tank for storage of a first volume of air and a second volume of liquid wherein the first volume of air is compressed air; a recovery tank for housing a second volume of air and a third volume of liquid; a liquid driven turbine connected to the energy storage tank and in communication with the second volume of liquid of the energy storage tank; a plurality of unidirectional liquid tubes and air tubes for connecting the piston drive cylinder tube, the energy storage tank, and the recovery tank; an impeller associated with the turbine; and a subsystem for energy generation.

The application relates to the technical field of water treatment, and particularly discloses an ecological floating island structure for repairing eutrophic water bodies, which comprises a floating island module and an anchoring rod, further comprises a frame device and a limiting device; the frame device comprises a connecting sleeve and multiple floating pipes; the front end of the floating pipe is provided with a sliding sleeve I; the front end of the floating pipe is in sliding fit with the rear end of another floating pipe through the sliding sleeve I; the front and rear ends of the multiple floating pipes are connected to form a rectangular placement cavity; multiple floating island modules are uniformly arranged in the placement cavity; one end of the connecting sleeve is fixed with the floating island module, and the other end is slidably sleeved on the floating pipe; and an elastic telescopic rod is connected between two floating island modules; and the limiting device is matched with the floating pipe to limit the position of the floating pipe; the ecological floating island structure for repairing eutrophic water bodies has the effect of improving the wind and wave resistance of the floating island module.

Provided herein are systems and methods for energy capture, energy storage, and stored energy translation to mechanical work, having: piston drive pump cylinder tube for housing a first volume of liquid, and a piston drive pump; wherein the piston drive pump is configured for motion; an energy storage tank for storage of a first volume of air and a second volume of liquid wherein the first volume of air is compressed air; a recovery tank for housing a second volume of air and a third volume of liquid; a liquid driven turbine connected to the energy storage tank and in communication with the second volume of liquid of the energy storage tank; a plurality of unidirectional liquid tubes and air tubes for connecting the piston drive cylinder tube, the energy storage tank, and the recovery tank; an impeller associated with the turbine; and a subsystem for energy generation.

The invention discloses an aquatic plant planting floating bed device and a laying method, the aquatic plant planting floating bed device comprises fixed piles and a floating bed body, the floating bed body is connected with the fixed piles through fixed pile ropes, and the floating bed body is suspended below the water surface; a single or a plurality of floating bed body arrays are connected with a floating ball rope suspension frame structure through floating balls to suspend in a water body, and floating-leaf plant planting bags and submerged plant planting nets are arranged on the frame structure. The height from the floating-leaf plant planting bag to the water surface and the height from the submerged plant planting net to the water surface are adjusted by adjusting the length of the floating ball rope; the suspension depth of the frame structure in the water body is adjusted by adjusting the suspension length of the floating ball rope, so that the depth of the submerged plant planting net is within the water body illumination condition range meeting the plant growth requirement; the minimum size of the floating ball is calculated through the weight of the suspension frame structure, the floating-leaf plant planting bag and the submerged plant planting net, the suspension depth of the aquatic plant planting floating bed device in lake and reservoir water is accurately controlled, and favorable conditions are created for ecological protection and restoration of eutrophic water.

The invention relates to the technical field of environmental engineering, discloses a green alga comprehensive inhibition system for a large-scale constructed wetland, and aims to solve the problem of algae outbreak caused by structural tension between an operation mode and green alga inhibition ecological conditions in the prior art. The system comprises a front-end pretreatment enhancement module, a middle-section hydraulic precise regulation and control module and a tail-end ecological-chemical synergistic inhibition module, a nutrient source is reduced through grating interception, grease separation and micro-flocculation precipitation, and a green alga planting environment is blocked by combining partitioned alternate water inlet, overflow hole elevation self-adaptive adjustment and a'small-amount and multiple-time 'water distribution strategy; and tail end collaborative algae inhibition is realized by utilizing internal circulation strengthening, residual chlorine maintenance and water linkage scheduling. According to the technical scheme, on the premise that the wetland purification function is guaranteed, the algae density is remarkably reduced, and formation of a static eutrophic water body is completely eradicated.

The invention provides a cyclic production method of high-density bioactive peptides. The cyclic production method comprises the following steps: S1, constructing an overall framework of an ecological cycle system; s2, the high-density circulating water culture module induces fishes to secrete bioactive peptides through environmental stress, and culture water rich in peptides is conveyed to other modules; s3, a bioactive peptide online enrichment module captures and concentrates target peptide substances from the aquaculture water, and purifies the water body at the same time; s4, the multi-layer three-dimensional water planting module uses the purified eutrophic water to produce organic vegetables; s5, the central control module dynamically regulates and controls the environmental stress intensity through real-time monitoring data, and the peptide production efficiency is optimized. According to the invention, the production efficiency of the bioactive peptide is obviously improved, the water pollution is reduced, and the synergistic interaction of aquaculture and hydroponic planting is realized.

The invention relates to the technical field of water treatment materials, in particular to a preparation method of a ferromagnetic iron-based flocculant and efficient phosphorus removal application of the ferromagnetic iron-based flocculant. The preparation method of the ferromagnetic iron-based flocculant comprises the following steps: adding an iron salt solution into an oxalic acid solution, stirring until yellow precipitate appears, standing, and then sequentially carrying out suction filtration, washing and drying to obtain a ferrous oxalate precursor; and carrying out plasma treatment on the ferrous oxalate precursor to obtain the ferromagnetic iron-based flocculant. The invention provides the iron-based flocculant which is environment-friendly and efficiently synthesized at low temperature, is suitable for efficiently removing phosphorus in sewage and eutrophic water, and solves the problems of heavy pollution and low phosphorus removal efficiency in the traditional process.

The invention relates to the technical field of endogenous pollution control and ecological restoration of water bodies, in particular to an endogenous pollution reduction water treatment method and device based on water level regulation and control. According to the device, a bottom mud layer is reserved on a bank zone of a lake or a reservoir and covered with a water filtering medium and a modified matrix containing an adsorbent, emergent aquatic plants with developed ventilation tissues are planted on the surface layer, and root systems penetrate through the matrix to enter the bottom mud to form a root zone-bottom mud contact zone. Small-amplitude, slow and periodic water rising-water stabilizing-water falling scheduling is implemented through facilities such as a gate dam, bottom mud water is driven to seep back and forth between the root zone and the bottom mud, so that endogenous pollutants such as nitrogen and phosphorus in the bottom mud are desorbed and are adsorbed, precipitated or absorbed by plants in the root zone and a modified matrix, and net removal is achieved in combination with harvesting at the end of a season. The method can reduce the concentration of nutritive salts in the bottom mud and overlying water of the shore zone without large-scale dredging and chemicals, is small in engineering disturbance and simple and convenient to operate, and is suitable for treatment of endogenous pollution of the eutrophic water shore zone.

Provided herein are systems and methods for energy capture, energy storage, and stored energy translation to mechanical work, having: piston drive pump cylinder tube for housing a first volume of liquid, and a piston drive pump; wherein the piston drive pump is configured for motion; an energy storage tank for storage of a first volume of air and a second volume of liquid wherein the first volume of air is compressed air; a recovery tank for housing a second volume of air and a third volume of liquid; a liquid driven turbine connected to the energy storage tank and in communication with the second volume of liquid of the energy storage tank; a plurality of unidirectional liquid tubes and air tubes for connecting the piston drive cylinder tube, the energy storage tank, and the recovery tank; an impeller associated with the turbine; and a subsystem for energy generation.

The invention discloses a flocculation self-air-flotation material for removing phosphorus and turbidity of a water body and a preparation method of the flocculation self-air-flotation material. The material comprises 100 parts of attapulgite powder, 100-150 parts of polyaluminum chloride and 50-100 parts of sodium percarbonate. The cleaning agent can also comprise 0.5-3 parts of cationic polyacrylamide. Through carbonate-induced aluminum-polymer interface chemical crosslinking, the combination stability of floc and bubbles is remarkably enhanced. Density functional theory calculation shows that the adsorption performance of oxygen molecules on a modified skeleton is superior to that of conventional sites, and embedded stable combination of microbubbles is achieved. Under the optimal proportion, the water turbidity removal rate of the material reaches 97% or above, the maximum phosphorus adsorption capacity is 12.63 mg / g, and the floc floating rate exceeds 90%. The material has excellent wind wave disturbance resistance, can significantly improve dissolved oxygen in water, facilitates in-situ salvage and recovery of floc, and effectively solves the problem of secondary pollution of bottom mud in eutrophication water remediation.

The utility model discloses a shallow lake eutrophication water body ecological integrated restoration device which comprises a floating island, a through hole is vertically formed in the middle of the floating island, a vertical rod is arranged in the through hole, the through hole is in sliding fit with the vertical rod, an air pump is arranged at the upper end of the floating island, the vertical rod is sleeved with a disc below the floating island, and the air pump is communicated with the disc through a first flexible pipe. A plurality of aeration pipes are uniformly arranged on the peripheral side of the disc, and aeration stones are arranged at the ends, away from the disc, of the aeration pipes; a garbage collecting assembly is arranged on the outer side of the floating island and comprises a mounting block, a collecting box, a first supporting rod, a second supporting rod, a rotating shaft and a spiral blade, when the floating island and the garbage collecting assembly are located in water, half of the through hole is located in the water, and the distance from the aeration stone to the vertical rod is larger than the distance from the first supporting rod to the vertical rod. According to the utility model, the dissolved oxygen content in the water body can be increased through aeration, and floating objects on the water surface can be collected and treated.

The invention discloses a water area treatment system, and relates to the technical field of water area treatment, the water area treatment system comprises a cabin body and empty bottles, a motor is fixedly installed on the cabin body, and a floating layer conveying structure is installed at the driving end of the motor through a second conveying mechanism and a first conveying mechanism; the method further comprises the following steps: S1, a starting stage; s2, treating the floating garbage; and S3, the eutrophic aquatic plants below the water surface are cleaned. The system has the advantages that aquatic plant cutting and floating layer garbage cleaning can be synchronously carried out, separate operation is not needed, the treatment efficiency is greatly improved, the garbage collecting box can extrude garbage, the storage capacity is improved, the transfer frequency is reduced, meanwhile, targeted cutting and reverse cutting of the upper and lower blades are matched, airflow is combined for preventing winding, weeds can be efficiently cut off, and the treatment efficiency is improved. Weeds can be prevented from winding equipment parts, continuous and stable work of the water area treatment equipment is ensured, and the overall treatment efficiency is improved.

The invention belongs to the technical field of resource environmental protection, and discloses a water quality purification and recycling method based on macroalgae. The method comprises the following steps: constructing a macroalgae ecological bed in a water body between a reclaimed water discharge port of a sewage treatment plant and the upstream of a reclaimed water supply target river and lake; the reclaimed water discharged from the reclaimed water discharge port of the sewage treatment plant is purified by the macroalgae ecological bed and then is discharged into the reclaimed water supply target river and lake; the macroalgae are at least one of benzylothrix, hydrocystis and cladophora. The method can systematically solve the core problems of high recovery cost, harsh field planting conditions, high recycling difficulty and the like in the traditional biological treatment, and provides a new path with a wide prospect for the treatment and resource recycling of eutrophic water bodies.

The invention discloses a super-subcritical resourceful treatment method for water hyacinth. Comprising the following steps: pretreating water hyacinth; the pretreated water hyacinth is mixed with a composite hydrolysis auxiliary agent composed of cyanobacteria photosensitizer and ionic carbon nanosheets and water, and the mixture is placed in a supercritical / subcritical reaction kettle to be subjected to a hydrolysis reaction; after the reaction is finished, carrying out solid-liquid separation to obtain solid residues and a liquid extract; performing anaerobic fermentation on the solid residues to prepare a feed porridge material; adding plant nutritional ingredients into the liquid extract, and adjusting the pH value to prepare the plant nutrient solution. The mass ratio of the cyanobacteria photosensitizer to the ionic carbon nanosheet is 1: (3-8). The composite hydrolysis auxiliary agent disclosed by the invention can achieve a synergistic effect, the conversion efficiency and the product quality of the water hyacinth are remarkably improved, the cellulose digestibility of a feed porridge material is improved, the effective retention rate of protein is improved, a high-quality plant nutrient solution is synchronously prepared, and efficient and high-valued resource utilization of the water hyacinth is realized.

An apparatus (100) for growing plants is disclosed The apparatus includes a reservoir (110) that stores a pre-determined volume of a nutrient-rich water solution for growth of one or more plants cultivated inside the reservoir. A first cutout (105a) and a second cutout (105b) provide visual indication of water inside the reservoir and operational status of the apparatus. A sensor (260) indicates level of the nutrient-rich water solution. The planter (120) includes an inlet (230) positioned at a base region of the planter. A transparent dome (130) connected to an upper region of the planter. An electronic controller (140) positioned on a printed circuit board at a bottom region of the reservoir. A nutrient dispenser (150) positioned at a rear end of the planter. Moreover, the apparatus includes a detachable battery unit (160) allowing the user either to use the apparatus directly or powering through a spring type connector pins.

The invention relates to the field of preparation of solid adsorbents, in particular to a preparation method of a zeolite composite material for eutrophication water body remediation, which comprises the following steps: screening out a reference preparation parameter with the minimum difference between an index value and an optimal value of all indexes, and fusing target data of all the indexes into the reference preparation parameter by utilizing a concern coefficient to obtain the zeolite composite material for eutrophication water body remediation. New preparation parameters are obtained; obtaining a plurality of indexes of the zeolite composite material particles prepared under the new preparation parameters, and recording the indexes as first indexes; correcting the attention coefficient of each index according to the difference between the first index and the optimal index; continuously updating the attention coefficient and correcting the reference preparation parameter according to the attention coefficient; and when the difference of all the index attention coefficients is smaller than a preset difference threshold value, taking the corrected reference preparation parameters as optimal preparation parameters during preparation of the zeolite composite material. The method ensures that multiple indexes of the prepared zeolite composite material meet production requirements as much as possible.

The invention relates to the technical field of water treatment, in particular to a three-dimensional ecological synergistic method for repairing and treating eutrophic water, which mainly comprises the following steps: constructing constructed wetlands on two sides of a water inlet river channel and a water head shoal by utilizing hygrophytes and emergent aquatic plants; submerged plants and floating plants are planted in the shallow and sunny water areas; putting filtering algae, omnivorous fishes and carnivorous fishes into the water body according to the ecological niche; snail and mussel benthic mollusks are put into sludge at the bottom of the water body; splashing a complex microbial inoculant containing nitrifying bacteria, phosphorus-accumulating bacteria and lactic acid bacteria into the water body; the fishes are caught out of the water body, and hygrophytes, emergent aquatic plants, submerged plants and floating plants are removed out of the water body in a manual harvesting mode. By forming a complete substance flow closed loop of'exogenous interception-endogenous conversion-biological removal ', eutrophication substances such as nitrogen and phosphorus in the eutrophication water body can be efficiently and quickly reduced, and the economic benefits of the water body are improved by fully utilizing the eutrophication substances.

The utility model discloses an aquaculture system utilizing reservoir bottom water, and particularly relates to the technical field of aquaculture, the aquaculture system comprises a sedimentation tank, an aerobic reaction tank, a disinfection device and a culture pond, the sedimentation tank is connected and communicated with the bottom of a reservoir through a drain pipe, and the bottom of the sedimentation tank is communicated with the outside through a sludge discharge pipe; aquatic products and aquatic plants with high tolerance to eutrophic water bodies are arranged in the sedimentation tank, the sedimentation tank is connected and communicated with the aerobic reaction tank through a first water outlet pipe, biological stuffing is arranged in the aerobic reaction tank and used for attaching microorganisms, and the aerobic reaction tank is connected and communicated with the disinfection device through a second water outlet pipe. The disinfecting and sterilizing device is used for disinfecting and sterilizing reservoir bottom water and is connected and communicated with the culture pond through a third water outlet pipe. According to the utility model, the deposition nutrition at the bottom of the reservoir can participate in a culture ecological environment circulation system again, the secondary utilization of nutrient substances is enhanced, and the utilization rate of water resources is improved.

The application discloses a method for beautifying and purifying eutrophic landscape water bodies by using tulip floating beds, and comprises the following steps: selecting water-cultivated tulip varieties; inducing roots of tulip bulbs and inducing aquatic roots; removing the seed coat and lateral buds of the selected tulip bulbs, and performing indoor root induction treatment after conventional disinfection; placing the tulip bulbs with induced aquatic roots on a planting disc, and then placing the planting disc at a floating bed planting hole; performing conventional management on the tulips after planting; and placing the floating bed in the eutrophic landscape water body. The application establishes a tulip outdoor water body floating bed planting technology taking the eutrophic water body as a nutrient salt library. Compared with the prior art, the method can make the tulips quickly absorb nitrogen, phosphorus and other nutrient elements in the landscape water body during the seedling stage, flowering stage and bulb growth stage, is beneficial to reducing the eutrophication degree of the water body, reducing the operation cost of the plant floating bed technology, fixing carbon and reducing emissions, and achieves the purpose of purifying and beautifying the landscape water body.

The invention provides an oxygen sustained-release material as well as a preparation method and application thereof. The oxygen slow-release material is nano calcium peroxide coated with zeolite imidazate skeleton-8, and the surface of the nano calcium peroxide is modified through polyvinylpyrrolidone and is recorded as PVP-nCaO2 (at) ZIF-8. The preparation method of the oxygen sustained-release material comprises the following steps: by taking nano calcium peroxide as a substrate, firstly modifying the nano calcium peroxide by polyvinylpyrrolidone, and then putting the modified nano calcium peroxide into a mixed solution of a methanol solution of zinc nitrate hexahydrate and a methanol solution of 2-methylimidazole to react, so as to obtain the oxygen sustained-release material. The surface of the nano calcium peroxide is coated with ZIF-8 through in-situ growth. According to the oxygen slow-release material provided by the invention, nano CaO2 is coated by adopting a cage structure of ZIF-8 to form a physical barrier, so that the oxygen release behavior of the nano CaO2 is favorably regulated and controlled, and the control and reduction of endogenous N and P can be realized when the oxygen slow-release material is applied to the SWI oxygen environment recovery of a eutrophic water body.

The invention relates to the technical field of eutrophic water and endogenous pollution treatment, and particularly discloses a preparation method of a gel-embedded slow-release oxygen material, which comprises the following steps: S1, mixing a stabilizer with a sodium alginate solution, and uniformly stirring to obtain an embedding layer precursor solution; the stabilizer comprises at least one of potassium chloride and polyvinylpyrrolidone; s2, mixing a porous material matrix loaded with oxygen with the embedding layer precursor solution, and uniformly stirring to form an uncrosslinked suspension; and S3, dropwise adding the obtained non-crosslinked suspension into a metal salt solution, and carrying out a curing reaction to obtain the gel-embedded slow-release oxygen material. The invention further discloses the gel-embedded slow-release oxygen material, and the gel-embedded slow-release oxygen material is prepared by the preparation method of the gel-embedded slow-release oxygen material. The scheme is used for solving the technical problems that oxygen of an existing oxygen-carrying porous material is easy to escape and cannot be slowly released for a long time, and the pH of a water body is influenced by byproducts existing in a chemical oxygen release agent.

The invention belongs to but is not limited to the technical field of water body ecological restoration, and discloses a novel ecological floating island based on light and biological manipulation and an algae bloom control method. The floating island comprises a buoyancy bearing unit, an ecological purification unit, a dynamic light control power generation unit, an oxygenation and light supplement unit, an environment monitoring unit and an electric control unit. An ecological floating island serves as a main body, a rollable photovoltaic panel is integrated on the periphery, and opening and closing of the photovoltaic panel, starting and stopping of aeration equipment and light supplementing of a lamp strip are controlled in a linkage mode through real-time monitoring data of a light intensity meter and an oxygen meter. According to the invention, a collaborative treatment mode of'dynamic light control by the rollable photovoltaic panel, aeration and oxygenation and central ecological plant purification 'is constructed, the problems that in the prior art, algal inhibition and grass protection cannot be considered at the same time, linkage control is lacked and the integration level is low are solved, active inhibition of algal blooms in the shallow water eutrophication water body and collaborative remediation of a water ecological system can be realized, and the ecological ecological system is improved. The device is self-sufficient in energy, high in intelligent degree and wide in application scene.

The invention discloses a bioelectrochemical coupled iron-based artificial wetland device and application, the device comprises a container, the top of the container is provided with a water supply device, the inner bottom of the container is paved with a supporting layer, the supporting layer is sequentially paved with a bioelectrochemical unit and a gravel layer, and aquatic plants are planted in the gravel layer; a plurality of water outlets are formed in positions, corresponding to the bioelectrochemical units, on the wall of the container; wherein the bioelectrochemical unit is formed by sequentially laying an upper cathode layer, an anode layer and a lower cathode layer from top to bottom, electrodes are horizontally embedded in each layer, and the bioelectrochemical unit is electrically connected with a power supply outside the container; and an aerator is also embedded in the anode layer and is connected with an air compressor outside the container through a ventilation pipeline. According to the device, multiple pollutants can be synchronously and efficiently removed through coupling of a multi-electrode bioelectrochemical structure, a controllable aerobic environment and iron-based filler chemical catalysis; meanwhile, by adjusting voltage and an aeration strategy, the device can quickly respond to water quality change, and is suitable for treating eutrophic water bodies with complex components.

The invention relates to the technical field of water treatment, and particularly discloses an ecological floating island structure for repairing eutrophic water, which comprises a floating island module and an anchoring rod, and further comprises a frame device and a limiting device, the frame device comprises a connecting sleeve and a plurality of floating pipes, a first sliding sleeve is arranged at the front end of each floating pipe, the front end of each floating pipe is in sliding fit with the rear end of another floating pipe through the corresponding first sliding sleeve, the multiple floating pipes are connected front and back to define a rectangular containing cavity, and the multiple floating island modules are evenly arranged in the containing cavity. One end of each connecting sleeve is fixed to the corresponding floating island module, the other end of each connecting sleeve slidably sleeves the corresponding floating pipe, and an elastic telescopic rod is connected between the two floating island modules; the limiting device is matched with the floating pipe to limit the position of the floating pipe; the ecological floating island structure for repairing the eutrophicated water body has the effect of improving the wind wave resistance of the floating island module.