48 results about "Eutrophic water" patented technology

The invention relates to the technical field of cyanobacterial bloom control in water, and particularly discloses a compound enzyme-bacterium synergistic preparation for cyanobacterial bloom control, a preparation method and a use method. The preparation comprises the following components in percentage by mass: compound enzymes (10-20% of cellulase, 8-12% of beta-1, 3-glucanase and 3-8% of lipase), functional bacteria (10-20% of bacillus subtilis, 8-15% of trichoderma harzianum and 5-10% of bacillus amyloliquefaciens), an enzyme stabilizer (3-8% of trehalose), an adsorption carrier (15-25% of Fe < 3 + > modified charcoal and 8-15% of diatomite) and auxiliary components. The preparation method comprises the steps of carrier modification, solid fermentation and microcapsule embedding. During use, 3-20kg / 1000m < 3 > of water is added for the first time, 2-10kg / 1000m < 3 > of water is added every 7-14 days in the maintenance stage, and synchronous aeration is performed. Through the synergistic effect of beta-1, 3-glucanase and trichoderma harzianum, the algicidal rate is 92%, and the spore germination inhibition rate is 82%; the Fe < 3 + > modified charcoal improves the stability of the enzyme in an alkaline environment (80% of activity is retained when the pH value is 9); the method is suitable for eutrophic water with chlorophyll a greater than or equal to 30 [mu] g / L, and has no chemical residue risk.

The application discloses magnesium modified straw biochar as well as a preparation method and application thereof, and belongs to the technical field of bio-adsorption materials. The preparation method of the magnesium modified straw biochar comprises the following steps: after straw is immersed in a magnesium salt solution (the concentration of the magnesium salt solution is 0.05-0.5 mol / L) and carbonized, the magnesium modified straw biochar is obtained. The magnesium modified straw biochar prepared by the application has a high specific surface area and rich surface functional groups, can effectively adsorb phosphorus in sewage, and realizes effective removal of phosphorus in eutrophic water bodies.

The invention discloses a carbon material with a through hole structure and a preparation method and application thereof, the preparation method comprises the following steps: S1, selecting a plurality of aquatic plant stalks with the moisture content of 10% or above, and then compressing the plurality of stalks under 5-50MPa to obtain compressed stalks; s2, the compressed stalks obtained in the step S1 are carbonized at the temperature of 600-800 DEG C to obtain carbonized stalks, and then the whole surfaces of the carbonized stalks are subjected to hydrophilic modification treatment to obtain the carbon material. Through combination of compression, carbonization and hydrophilic modification treatment, the integrity of a plant original through hole structure is reserved to the maximum extent, the pore size is optimized, the capillary effect is enhanced so as to efficiently complete water evaporation, and the evaporation efficiency of the carbon material prepared by the preparation method can reach 4.8 kg / (m.h). And seawater, brackish water, high-fluorine water, heavy metal organic pollution wastewater and eutrophic water can be efficiently treated.

A method for surface water remediation and prevention and mitigation of harmful algal blooms includes the steps of receiving nutrient-rich water from a body of water; cultivating a first type of algae in the raceway algae growth pond to absorb and reduce nutrient concentrations in the nutrient-rich surface water; flowing at least a portion of the nutrient-rich surface water treated in the raceway algae growth pond to an attached algae flow way connected downstream of the raceway algae growth pond; cultivating a second type of algae in the attached algae flow way to further absorb and reduce nutrient concentrations in the nutrient-rich surface water; and returning at least a portion of the nutrient-rich surface water treated by the raceway algae growth pond and the attached algae flow way to the body of water.

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.

The present invention discloses a comprehensive treatment method for eutrophic water bodies, comprising the following steps: S1, after salvaging phytoplankton in the eutrophic water body, injecting the water to be treated into a permeable hardened soil pit, collecting the remaining silt and distributing it to the permeable hardened soil pit to obtain a pond to be treated; S2, adding a degrading bacterial agent to the pond to be treated to obtain a target water body; S3, after the transparency of the target water body is restored, planting submerged plants in the target water body; S4, after the submerged plants grow stably, releasing fish and benthic aquatic animals into the target water body; S5, maintaining the number of submerged plants, fish and benthic aquatic animals in the target water body stable, and maintaining normal detection indicators in the target water body, thereby completing the treatment of the eutrophic water body. The method of the present invention can reduce the impact of excessive silt nutrients, limit the development of excessive eutrophication in the pond, and intercept suspended matter in the water, thereby shortening the treatment time.

The application discloses a method for synthetically determining water bloom prevention and treatment measures according to total phosphorus and suspended matter thresholds, and comprises the following steps: measuring total phosphorus concentration I and suspended matter concentration I of eutrophic water, then implementing algae control measures, carrying out water-algae separation, measuring total phosphorus concentration II and suspended matter concentration II of the separated water; calculating total phosphorus removal rate and suspended matter removal rate according to total phosphorus concentration I and total phosphorus concentration II, and suspended matter concentration I and suspended matter concentration II; carrying out function fitting on total phosphorus removal rate and total phosphorus concentration I, and carrying out function fitting on suspended matter removal rate and suspended matter concentration I; determining total phosphorus threshold and suspended matter threshold according to total phosphorus and suspended matter fitting curve formula; and comparing total phosphorus concentration I with the total phosphorus threshold, comparing suspended matter concentration I with the suspended matter threshold, and taking corresponding prevention and treatment measures. The application prevents lake blue-green algae water bloom by controlling total phosphorus concentration, and effectively guarantees lake water ecological environment quality.

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 a synchronous nitrogen and phosphorus removal sewage treatment method based on secondary calcification modified siderite coupled sulfur autotrophic denitrification. According to the method, active sites and buffer capacity of siderite are improved by using calcination and calcium-based modification processes, nitrate reduction is driven by sulfur autotrophic denitrifying flora, and phosphate is fixed by using a synergistic precipitation effect of iron and calcium ions. According to the system, a neutral pH environment is effectively maintained, inhibition of acidification on microbial activity is avoided, generation of intermediate products is reduced, the denitrification efficiency is remarkably improved, efficient phosphorus removal is synchronously realized, and meanwhile, a reactor with a novel structure is adopted, so that filler hardening can be effectively prevented, and a supporting effect is achieved. The sewage treatment method adopted by the invention does not need additional carbon sources or chemical agents, is high in process integration level, is suitable for treatment of decentralized sewage, industrial wastewater and eutrophic water bodies, and has the advantages of low operation cost, environmental friendliness, easiness in engineering and the like.

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 provides a natural plant-based algae flocculation material as well as a preparation method and application thereof, the material takes polylactic acid hollow microspheres with specific density as a buoyancy inner core, and a composite structure of the buoyancy inner core, a nutritive salt removal middle layer and an algae flocculation outer layer is formed from inside to outside through layer-by-layer functionalization construction. Wherein the nutritive salt removing layer is calcium alginate hydrogel loaded with hydrated lanthanum oxide and modified zeolite, and synchronous adsorption of phosphate radicals and ammonium ions can be achieved; an algae flocculation outer layer is a porous polylactic acid layer loaded with moringa seed powder and tea saponin, and efficient flocculation and activity inhibition of algae are realized through cooperation of electric neutralization, adsorption bridging and a membrane damage mechanism. The material has the functions of algae flocculation, nutritive salt removal and easy recovery after use, and an environment-friendly and high-sustainability new way is provided for eutrophic water body and algae bloom treatment.

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 application discloses a kind of photocatalytic material for removing eutrophication water body algae and its preparation method and application, in the present application, anhydrous ethanol containing polytetrafluoroethylene is used to adhere powdered Ag3VO4 / WO3 catalyst on graphite felt, realizing the recovery of catalyst and avoiding secondary pollution, and when reused, the removal rate of algal cells by the photocatalytic material is still close to 90%. In addition, heterojunction can be formed between WO3 and Ag3VO4 in the photocatalytic material, effectively inhibiting the recombination of photo-generated hole-electron pairs, thereby improving the photocatalytic activity of the photocatalytic material.

The application discloses a device and method for removing phosphorus in eutrophication water body, comprising an algae decomposition pool, an electric flocculation pool, a sedimentation pool and an anoxic recovery pool; the algae decomposition pool is a vertically arranged decomposition pool body, a plurality of motors are arranged at the upper and lower ends of the decomposition pool body respectively, a filter plate is arranged in the decomposition pool body, a pulling rope is arranged between the upper end motor and the upper surface of the filter plate, a pulling rope is arranged between the lower end motor and the lower surface of the filter plate, and the movement of the filter plate in the vertical direction is controlled through the pulling ropes; a plurality of one-way holes are arranged on the filter plate. Part of the separated phosphorus is in the form of phosphate, and the anoxic recovery pool can recover the phosphate under the condition that the content of additives is small. The application is simple to operate, does not need to use a large amount of chemical agents, and avoids secondary pollution possibly caused by the chemical agents.

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 discloses a filamentous cyanobacteria control method and system, and relates to the field of cyanobacteria bloom prevention and control, and the method comprises the steps: carrying out the real-time collection of water quality parameters and meteorological data of a reservoir; based on a machine learning model and according to the water quality parameters and the meteorological data, predicting the density of filamentous cyanobacteria and judging a water bloom risk level; calculating a target control rate according to a prediction result and a preset risk threshold value, and reversely deducing a theoretical required daily light receiving quantity; based on the extinction coefficient dynamic model, optimizing the sediment concentration and the number of resuspending times, so that the actual daily light receiving quantity is not greater than the theoretically required daily light receiving quantity; and the target control rate is realized by executing the sediment resuspension operation to dynamically adjust the parameters. According to the scheme, through data driving and ecological regulation and control fusion, the problems of low efficiency, high environmental risk and poor adaptability of a traditional method are solved, and eutrophication water body treatment is promoted to evolve towards the intelligent, precise and sustainable direction.

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 discloses a cultivation method and device for improving the seed germination rate and the seedling survival rate of kandelia candel transplanted in north, and belongs to the technical field of mangrove forest cultivation. The cultivation device comprises an outer pot body and an in-pot substrate layer, the substrate layer in the pot sequentially comprises a quartz sand substrate layer, a rock wool layer and a biochar layer wrapped by the rock wool layer from top to bottom, and a water outlet is formed in the junction of the two substrates of the outer pot body and used for adjusting the height of the water level. The cultivation method comprises the steps of selecting kandelia candel seeds which are similar in size, complete in cap, full, mature and free of insect pests, preparing a matrix, simulating environmental conditions of a natural water body or a eutrophication water body to ensure seed germination, moving the seeds into a device and recording germination and growth changes, domesticating seedlings after rooting and germination, directionally cultivating kandelia candel seedlings with high tolerance, and conducting seedling cultivation. After the seedlings are matured, the substrate and the kandelia candel seedlings are integrally transplanted into the natural environment for continuous culture, so that the germination rate and the transplanting survival rate of the kandelia candel seeds are effectively increased, and the method is easy to popularize and apply.

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.

The present invention belongs to the technical field of eutrophication restoration of landscape water bodies and resource utilization of waste organisms, and specifically relates to a method for preparing a high-efficiency phosphorus-absorbing matrix with a self-floating function. The method comprises the following steps: using discarded shells to prepare chitosan-calcium polymer, which is subjected to at least two cross-linking reactions with a gel synthetic material to synthesize a hydrogel, and then wrapping the synthesized hydrogel on a sponge fiber skeleton to prepare a matrix with a self-floating function. At the same time, the matrix with a self-floating function and the roots of aquatic plants are fixed in a planting basket with tying ropes, and then the tying ropes are used to connect the planting baskets into pieces to form a self-floating ecological floating bed that does not require frame support and is used for treating eutrophic water bodies.

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.