128results about How to "Easy to hang film" patented technology

The invention discloses an attapulgite clay porous porous ceramsite, a preparation method of the ceramsite, and a purpose of the ceramsite. The ceramsite is prepared from raw materials of attapulgite clay and biomass, and a binder of industrial soluble glass. The ceramsite is prepared through calcining and oxidizing. The attapulgite clay porous ceramsite prepared by the present invention has advantages of high porosity, large specific surface area, high strength, strong water resistance, high water absorption, high catalytic activity, and the like. The porous ceramsite prepared by the presentinvention can be applied as a carrier for a catalyst, and a filling material for an aerated biological filter.

The invention relates to a process for manufacturing a water treatment ceramsite filter by waste gypsum generated in acesulfame potassium production, which is characterized by comprising the following steps: a) pre-treatment: cleaning, drying and dewatering the waste gypsum generated in the acesulfame potassium production; b) mixing and homogenizing: mixing the treated waste gypsum with flyash and biological sludge to serve as a base stock, wherein base stock comprises 40-60% of waste gypsum by mass, 20-35% of flyash by mass and 5-20% of biological sludge by mass; and adding 8-15% of clay by mass and 1-12% of pore-forming material by mass, and evenly mixing; c) pelletizing; d) expanding; and e) screening: crushing the expanded product into the ceramic product with the particle size of 3-15mm, namely obtaining the product in the invention. The ceramic filter obtained in the invention can be suitable for enterprises needing water treatment like sewage treatment plants and the like.

The invention relates to an active composite suspended filler, which is applied to the technology of biochemical treatment of organic wastewater, and discloses a porous support filler formed by a carrier basic materials and functional assistant materials. The porous support filler is in a through-hole spheroidal body or a through-hole cylindrical body, and one layer of porous active powder material layer is bonded on an outer surface of the through-hole spheroidal body or the through-hole cylindrical body. The active composite suspended filler is an inorganic suspended filler, has an uneven surface and roughness height; and pores with different sizes are distributed on the filler and are shaped like a honeycomb. The filler not only has high adsorption performance on harmful substances and dissolved oxygen, but also can form different dissolving intensity, is beneficial to improving processing efficiency for removing COD (Chemical Oxygen Demand) and ammonia nitrogen, and will be a novel high-efficient filler.

The invention discloses a lightweight slow-release nitrogen and phosphorus removal material and a preparation method and application thereof, and belongs to the field of environment function materialsand sewage treatment. The preparation method comprises the following steps: uniformly mixing cement, pyrite, a foaming agent and a foam stabilizer to obtain dry-mixed mortar; adding water into the dry-mixed mortar, and stirring to prepare the lightweight slow-release nitrogen and phosphorus removal material. The lightweight slow-release nitrogen and phosphorus removal material of the invention has characteristics of high specific surface area, controllable density, high reactivity, easy microbial biofilm formation, slow-release electron donor nitrogen-removal and iron ion phosphorus-removal,etc., can be used as a filling material for sewage treatment fluidized beds and fixed beds, a filling materials for constructed wetlands and in-situ and ex-situ purifying material for polluted water bodies, and has a good purifying effect on pollutants in water, especially on total nitrogen and total phosphorus.

The invention discloses a device and a method for realizing sludge digestion fluid short-cut nitrification of continuous flow suspending media. The device is provided with a raw water tank, a denitrification filtering column, a suspending media reactor, a secondary basin and a water outlet tank, wherein the raw water tank is an open casing, the denitrification filtering column is a cylindrical tube, cubic suspending sponge filling materials are filled in the denitrification filtering column, the suspending media reactor is an open basin body with inner cavity divided into a plurality of grid chambers, cubic suspending sponge filling materials are filled in the grid chambers, further the suspending media reactor is equipped with a gas pump, a gas flow meter and an aerated conduit, the secondary basin is a column, and the water outlet tank is a open casing. The method for realizing sludge digestion fluid short-cut nitrification comprises starting the system and adjusting operation in running. The device and the method can save a large amount of denitrification carbon sources, increase denitrogenation efficiency of sewage disposal plants, and achieve the purpose of saving energy and lowering energy consumption.

The invention relates the method of producing filtering material used in bio-aeration filter tank. The lightweight and highly effective biology filtering material comprises 65wt%-80wt% red earth ore, 10wt%-30wt% coal ash and 5wt%-15wt% pore-forming agent. The method comprises the following steps: breaking the 65wt%-80wt% red earth ore, drying at 130Deg.C-170Deg.C; fetching 10wt%-30wt% coal ash; fetching 5wt%-15wt% pore-forming agent, water content being below 3%, mixing them, adding water to form ball, drying, calcining, at 1050Deg.C-1250Deg.C, cooling, breaking, barreling and screening until the grain size being 3-8mm. The invention has the advantages of macroporous structure, rough surface, proper void ratio and large specific surface area. Every property is satisfied for the request of bio-aeration filter tank filtering material.

The invention discloses a method for preparing ceramsite with a catalyzing function through surplus sludge. According to the method, through different portions of the surplus sludge, coal ash and slag, a little of SiO2 and a little of Al2O3 are added to improve the performance of the ceramsite, and the prepared ceramsite has the catalyzing function through the load of reactive metal. By the adoption of the method, the prepared ceramsite is high in compressive strength and good in all performance, has the catalyzing function and serves as packing of an oxidation pond to treat printing and dyeing wastewater, so that a good effect is achieved, and biofilm formation is easy.

The invention relates to an integrated biological reactor for treatment of industrial wastewater and domestic sewage. The integrated biological reactor comprises an anaerobic tank, an anoxic tank, an aerobic tank and a sedimentation tank, wherein the integrated biological reactor is shaped like a barrel as a whole, the cross section of the integrated biological reactor comprises three concentric circles, the interior of an outmost circular ring which is surrounded by the outmost two circles is divided into the anoxic tank and the aerobic tank through a partition plate, and the height of the partition plate is lower than that of a barrel body of the reactor; a middle circular ring surrounded by the innermost two circles is the sedimentation tank, and the anaerobic tank is arranged in the innermost circle; and the anaerobic tank is connected with the anoxic tank through a pipeline, and the aerobic tank is connected with the sedimentation tank through the pipeline. An aeration device is mounted at the bottom of the aerobic tank, and aeration is generally performed through a Roots blower. A sludge discharge pipe is arranged at the bottom of the sedimentation tank. The anaerobic-anoxic-aerobic-sedimentation tanks are integrally arranged and built, thus the problem of large occupied area in a traditional mode can be solved.

The invention discloses a domestic sewage bioreaction treatment and recycling system which belongs to the technical field of sewage disposal. The system is composed of a collecting pipe network, an inlet well, a sedimentation tank, a regulating tank, an anaerobe filter tank, an aerobe discharge tank, a clear water tank, a drain tank, an equipment room, lifting pumps, a blower, a biological chemical feeder and pipelines, wherein the collecting pipe network is connected to the inlet well; the inlet well is provided with a water inlet; the water inlet is connected with the sedimentation tank through the pipeline; after sedimentating in the sedimentation tank, sewage enters the regulation tank through the pipelines; the two lifting pumps are arranged in the regulation tank and connected with the anaerobe filter tank through the pipelines; the sewage enters the aerobe discharge tank through the pipeline to be processed in a biological treatment way, and enters the clear water tank; water in the clean water tank, which is processed in a biochemical treatment mode, enters the ambient river course via the drain tank; the outlet of the blower is connected with the aerobe discharge tank; the blower is arranged in the equipment room; and the biological chemical feeder and a control cabinet are arranged in the equipment room. The invention has the advantages of simple treatment process, stable operation, simple management, low energy consumption, convenient maintenance and low cost.

The invention provides a combined packing for an immobilized microorganism technology. The combined packing comprises an outer frame body and a porous polyurethane carrier, wherein the outer frame body is a sphere injection-molded by a packing mould; and the porous polyurethane carrier is of a regular hexahedron structure formed by foaming and cutting polyurethane foaming plastic. By using the packing provided by the invention, the starting time of a biochemical system can be remarkably shortened, and the treatment effect can be improved; and meanwhile, the combined packing is also relativelyhigh in porosity and mechanical strength, capable of providing relatively large attachment area for microorganisms, good in wear resistance in a long-term wastewater treatment process and free of loss.

The invention discloses a method for preparing ceramsite by using Xianfeng diatomite. The method comprises steps of: crushing a naturally dried raw material Xianfeng diatomite; mixing the raw material with water in a ratio of 100:60-70 and stirring uniformly; air-drying the mixture to a water content of 40-50%; moulding; air-drying naturally; and finally sintering to obtain high strength diatomite ceramsite. The method of the invention is simply operated, has good effect; and the ceramsite prepared by the method has good strength, reduced water absorption, strong durability and wide application scope.

The invention discloses a sewage treatment device for a large-scale sewage treatment station. The sewage treatment device comprises a filtering device, a regulating hydrolysis tank, a grade-A biochemical tank, a grade-O biochemical tank, a precipitation tank, an improved coagulation system, a disinfection tank, a sludge thickening tank, oxygenation equipment and a gas stripping device, wherein the filtering device, the regulating hydrolysis tank, the grade-A biochemical tank, the grade-O biochemical tank, the precipitation tank, the improved coagulation system and the disinfection tank are connected with one another in sequence from front to back; the gas stripping device is a pulse gas stripping device which is used for stripping one part of sludge precipitated in the precipitation tank into the sludge thickening tank, and the other part of the sludge precipitated in the precipitation tank into the grade-A biochemical tank; the grade-O biochemical tank is provided with the oxygenation equipment which is a centrifugal blower. The invention also provides a sewage treatment method for the large-scale sewage treatment station. The sewage treatment device disclosed by the invention has the advantages of being full in filtration and high in treatment efficiency of precipitated sludge, saving the floor area, and having an integrated function of regulation and decomposition.

The method relates to a method for improving the denitrification rate of acrylonitrile waste water, and mainly solves the problems that the removal efficiency is relatively low and the effluent COD (Chemical Oxygen Demand) or TN (Total Nitrogen) cannot reach the standard during the acrylonitrile waste water treatment in the prior art. The method for improving the denitrification rate of the acrylonitrile waste water adopted by the invention comprises the following steps: (1) the acrylonitrile waste water enters a partial nitrification denitrification tank; (2) substances flowing out from the partial nitrification denitrification tank enters an oxygen-poor tank; (3) substances flowing out from the oxygen-poor tank enters a primary settling pond, substances flowing out from the upper part of the oxygen-poor tank enters an aerobiotic tank, and at least one part of bottom sludge of the oxygen-poor tank is discharged; (4) upper part substances flowing out from the aerobiotic tank enters a secondary settling pond, upper clean liquid of the aerobiotic tank enters an advanced oxidation tank, and the bottom sludge of the aerobiotic tank is discharged; (5) substances flowing out from the advanced oxidation tank enters a biological aerated filter to contact with the porous filter material and air, the waste water up-to-standard release technical scheme solve the problem in the prior art well, and the method can be applied to the industrial treatment of the acrylonitrile waste water.

The present invention discloses a method for preparing a novel biological fluidized bed carrier by using waste coke powder and treating waste water. According to the method, active sludge is inoculated in a biological fluidized bed main body, a biological fluidized bed carrier is poured, membrane forming culture is performed, waste water enters a reflux groove through a water pump, concurrently partial effluent of the reflux groove refluxes to the reflux groove, an influent pump is adopted to pump the waste water in the reflux groove into the biological fluidized bed, and water quality of effluent on an upper effluent port of a precipitation tank is monitored, wherein standard discharge is performed if a concentration of effluent COD is less than 100 mg / L and an ammonia nitrogen concentration is less than 10 mg / L, if the standard is not met, the effluent enters the reflux groove through a three-way valve to be continuously treated. According to the carrier, a good turbulent flow effect is provided in the fluidized bed, efficiency is high, a sufficient specific surface area can be provided, membrane forming is easily achieved, no toxic and harm effect is generated, and the carrier is easily fluidized in water and does not easily run off. In addition, the carrier adopts waste coke powder as the raw material, such that material taking is easy, the material source is wide, price is low, and the waste coke powder is subjected to resource utilization so as to change waste into valuables.

The present invention discloses an artificial waterweed, a plurality of floaters are evenly distributed in four corners of both sides of a waterweed support, weed body fiber is uniformly arranged on the waterweed support surface; the weed body fiber comprises layered porous PAN-based activated carbon fiber and nitrogen-doped TiO2 catalytic material-loaded layered porous PAN-based activated carbon fiber; activated carbon fiber has a large specific surface area, can absorb and retains suspended and dissolved pollutants in water, has high biological affinity, and is conductive to microbial attachment and film formation; a nitrogen-doped TiO2 catalytic material has good visible light activity, can oxidize macromolecular organic pollutants in water into small molecule organic pollutants under natural light photocatalysis, and is conductive to degradation of microorganisms adhered on the weed body surface, a base is filled with a carboxymethylcellulose polymer, colloid containing large amounts of carboxyl groups, hydroxymethyl groups and the like has a certain heavy metal ion adsorption capacity, and can effectively remove heavy metal ions in the water.

The invention discloses a compound mineral material for disposing landfill leachate as well as a preparation method and application thereof, belonging to the technical field of sewage disposal. The compound mineral material is prepared from the following materials by weight percent: 25 to 35 percent of modified epidesmine, 25 to 35 percent of modified clinoptilolite, 10 to 15 percent of modified bentonite, 3 to 8 percent of alunite, 3 to 8 percent of kaolin, 6 to 18 percent of quartz sand, 3 to 8 percent of volcanic and 2 to 5 percent of water glass. The invention also discloses the preparation method and the application of the compound mineral material and a landfill leachate disposing method. The compound mineral material is low in cost, high in pertinence, high in treatment efficiency and small in secondary pollution, and the preparation method is simple, convenient to use, low in cost, wide in market prospect and suitable for scale production.

The invention discloses a method for treating and printing and dyeing wastewater by using a hydrolysis tank. The hydrolysis tank comprises a front half tank and a rear half tank, wherein the front half tank of the hydrolysis tank is provided with a water inlet; the rear half tank of the hydrolysis tank is provided with a water outlet; the rear half tank is connected with an oxidation ditch and a secondary sedimentation tank in series; the front half tank is an opened tank of which the upper part is opened; the rear half tank is a closed tank of which the upper part is closed; the printing anddyeing wastewater is treated and then is mixed with sludge in the secondary sedimentation tank at the water inlet; the mixture enters the inside of the front half tank of the hydrolysis tank from thelower part of a baffle plate; when DO value of the printing and dyeing wastewater reaches 0.2-0.3mg / L, the wastewater enters the interior of the rear half tank of the hydrolysis tank; and when the DOvalue of the printing and dyeing wastewater reaches 0.3-0.5mg / L, the wastewater is discharged after reaching the standard. According to the method disclosed by the invention, the biochemical quality of the hydrolysis tank is greatly improved; the ammonifying effect of organisms which are difficult to degrade, such as organic nitrogen, is remarkably improved; and the removal rates of subsequent COD (Chemical Oxygen Demand) and NH3-N are greatly improved.

The invention relates to the technical field of sewage treatment, in particular to a biological filling material, which is prepared from the following ingredients of hydrophilic substrates, nutrients,adhesion filling materials, bonding agents and magnetic powder, wherein the hydrophilic substrates are obtained by mixing polyvinyl alcohol and polyacrylamide. The biological filling material has theadvantages that the specific surface area is large; the hydrophilic performance is good; the nutrition source is slowly released; the magnetic micro electrolysis environment can be made; the capturecapability on microbes in the sewage is high; the adhesion growth of colony is facilitated; good flocculated-adsorption and oxidization effects can be achieved on organic matters in the water; a biological film with compact structures can be further formed; the microbe growth can be promoted; the bioactivity can be activated; the operation starting time of the sewage treatment system is shortened;the filter pool volume and the occupied area can be reduced. The invention also provides a preparation method of the biological filling material and a sewage treatment system using the biological filling material.

The invention relates the method of producing filtering material used in bio-aeration filter tank. The highly effective biology filtering material comprises 70wt%-90wt% red earth ore and 10wt%-30wt% coal ash. The filtering material is out-of-shape, and the grain diameter is between 3mm and 8mm. The method comprises the following steps: breaking the 70wt%-90wt% red earth ore, drying at 130Deg.C-170Deg.C; fetching 10wt%-30wt% coal ash; fetching 5wt%-15wt% pore-forming agent, water content being below 3%, mixing them, adding water to form ball, drying, calcining, at 1050Deg.C-1250Deg.C, cooling, breaking, barreling and screening until the grain size being 3-8mm. The invention has the advantages of macroporous structure, rough surface, proper void ratio and large specific surface area. Every property is satisfied for the request of bio-aeration filter tank filtering material.

A providd suspended filling material used for sewage processing is characterized in that the filling material is integrally in the shape of a ball, the surface is provided with a modified coating, and the diameter is 10-60 mm; the filling material comprises filling-material sheets and a filling-material nucleus; each filling-material sheet is a semi-annular thin sheet, and the filling-material nucleus is a hollow ball; the filling-material sheets are arranged in the tri-dimensional space round the filling-material nucleus in a radial manner; and the filling-material sheets and the filling-material nucleus are arranged in a concentric way, and the internal diameter of each filling-material sheet is equal to the external diameter of the filling-material nucleus. The suspended filling material is easy for film formation, and because the filling-material nucleus is hollow, the filling material is easy to suspend after a film is formed.

The invention relates to a method for simultaneously removing insoluble organic matter, total cyanogen and total nitrogen in wastewater of an industrial park. The method comprises the following steps: wastewater enters a high-efficiency coagulated decyanation reactor to remove total cyanogen in the wastewater removed from the coagulated decyanation reaction; effluent from the coagulating reaction enters an aeration biofilter, ammonia and nitrogen in the wastewater is oxidized into nitrate nitrogen or nitrite nitrogen, and partial organic matters are oxidized and removed; effluent from the aeration biofilter flows into a denitrification filter tank, and nitrate nitrogen and nitrite nitrogen in the wastewater are denitrified into nitrogen and removed; effluent from the denitrification filter tank is filtered in a V-shaped filter tank and then enters an ozone catalytic oxidation tank, and insoluble organic matters are oxidized into small-molecular organic matters or mineralized in the presence of a catalyst. The method can be used for oxidizing and degrading organic matters while removing total cyanogen and total nitrogen in the wastewater to ensure that treated effluent can be emitted in standard, thus having an excellent market prospect.

The invention provides a porous polymer filling material for a biotrickling filter. The porous polymer filling material is prepared from the following ingredients in parts by weight: polymer resin, polymer modifiers, nucleating agents, hydrophilic modifiers, compatibility modifiers and pore forming agents. The filling material has the characteristics of large specific area, light specific weight, hydrophilia, compatibility and the like; the removal rate of COD and NH3-N in sewage are improved; the filling material belongs to an ideal biotrickling filter filling material.

The invention relates to a reactor for realizing suspension of biofilm carriers under low aeration quantity. The reactor comprises a vertical cylindrical shell, wherein a vertical hollow cylinder is coaxially arranged in the shell, and a stirring paddle is mounted in the hollow cylinder; a plurality of through holes are formed on the wall of the hollow cylinder; the bottom end of the hollow cylinder is fixedly connected with the bottom end of the shell; and the biofilm carriers are filled in a circular space between the hollow cylinder and the shell. According to the unique structure design of the reactor and the control to the rotating speed of the stirring paddle, the biofilm carriers in the reactor can be ensured always in the suspension state under the low aeration quantity, and excellent fluidization character is maintained, so that the partial nitrification advantages are stably kept, the advantages are created for simultaneous nitrification and denitrification, and the aeration energy consumption and the carbon source material consumption in the denitrification phase are reduced.

The invention relates to a method for dephosphorization of electroplating wastewater. The method includes the following steps: enabling the electroplating wastewater to sequentially pass a hydrolysis acidification tank, an activated sludge system, an inclined tube sedimentation tank, an ozone sedimentation tank, an aerated biological tank, a Fenton coagulating basin and a chemical precipitation tank, and discharging the electroplating wastewater up to the standard. The 'biochemical treatment-advanced oxidation-coagulating sedimentation' processes are integrated for deep treatment of non-positive phosphate in electroplating industry wastewater electroplating plots. By the method, the problem that it is not easy for the phosphorus index of the electroplating plots to reach the standard stably for a long time can be solved, wastewater treatment efficiency and social and economic benefits are improved, and clean production, energy conservation and emission reduction are realized.

The invention discloses a three-dimensional fused and deposited biological film filler as well as a preparation method and application thereof. The method comprises the following steps: (1) adopting polypropylene to form a porous matrix through 3D printing; (2) adopting a nano particle mixture to form sustained release layers on the side wall and upper surface of the porous matrix through 3D printing so as to obtain a sustained release layer-porous matrix composite; and (3) carrying out thermal treatment and ultraviolet-light treatment on the sustained release layer-porous matrix composite in sequence to obtain the biological film filler. The biological film filler prepared by the method can provide trace nutrient substances needed for microbial growth in a sustained release manner during use, so that the biological film growing speed, growing amount and water treatment efficiency of the filler can be improved.

The invention relates to the technical field of water treatment and ecological repairing equipment and methods, in particular to mixed ecological filling mainly comprising modified molluscs, a composite filling sphere, a purification tank device and a preparation technology. The mixed ecological filling is prepared by mixing calcined mollusc mixed ecological filling, tea residue active carbon, zeolite, limestone, coarse aggregate, ceramsite and soft stone. Compared with the prior art, the filling, the filling sphere, the device and the technology have the advantages that a formula source of the mollusc mixed ecological filling is wide; the price is low; changing of wastes into valuables can be achieved; the requirements of modern green social sustainable development are met; the mollusc mixed ecological filling has larger specific surface area and high porosity, is light in weight, high in strength, stable in physical and chemical properties, and has no harmful effect on biological propagation; a double-layer structure of the filling sphere fixes the mollusc mixed ecological filling; the filling sphere is large in specific surface area and easy in biofilm formation and is not blocked; and the purification tank stabilization device has bondability and fluidity, is safe and stable and avoids a scouring problem.

The invention discloses a spherical suspended bio-filler. The spherical suspended bio-filler comprises a spherical shell, a longitudinally rotatable sphere is jointed in the shell, and a transverselyrotatable ellipsoid is jointed in the sphere; and hollow-out holes are distributed in the shell, hollow-out small holes are distributed in the sphere, fins are distributed on the ellipsoid, and through grooves are distributed between the adjacent fins. The spherical suspended bio-filler obtained in the invention comprises the shell, the sphere and the ellipsoid from the outside to the inside, wherein the sphere can rotate longitudinally, and the ellipsoid can rotate transversely. Three spheres are arranged to increase the fluidity, and especially the fins of the ellipsoids are arranged to increase the specific surface area of the filler sphere. Additionally, the material of the shell, the sphere and the ellipsoid is any one of modified polypropylene and modified polyethylene in order torealize strong hydrophilicity and easy bio-film formation.

The invention discloses a biological treatment device for exhaust gas, which comprises two main parts, namely a prewashing tank and a biological treatment tank. The exhaust gas enters the biological treatment tank for purification after the exhaust gas is washed by spray water in the prewashing tank, wherein a filling in the biological treatment tank adopts a mixture of bioactivity ceramisites and oyster shells, and spray liquid of the biological treatment tank adopts precipitated outlet water of a secondary sedimentation tank of a sewage treatment plant. The biological treatment device for the exhaust gas has the characteristics: the adopted mixed filling has light weight, proper porosity, long service life, easy film formation and excellent hydrophilicity, is suitable for microorganisms to form films thereon, and has wide sources and low price; and the spray water adopts the precipitated outlet water of the secondary sedimentation tank, the requirement on the growth of the microorganisms can be met, the number of functional microorganisms in the biological treatment tank is effectively guaranteed, the operation procedure is simplified, the operating cost is effectively reduced, and the treatment efficiency is improved.

The water treating method utilizes biological contact and oxidation and sets suspension stuffing in water treater. Raw water is led into the water treater while its aerator is inflated for aeration with blower and its fluidizer fluidizes the biocarrier, the aerobic microbe in raw water is adsorbed onto the biocarrier. The fluidizer raises the oxygen transferring rate of raw water and the organic matter eliminating rate. Raw water is made to pass through suspension stuffing and the aerator before being led out. The present invention needs no stuffing rack and reverse flushing system and has long service life. The water level in the aerator tank may be self adjusted to raise water utilization.

The invention discloses a nitrogen and phosphorus removal ecological permeable material and a preparation method thereof, and belongs to the fields of environmental functional materials and water purification. The ecological permeable material comprises a slow-release skeleton structure and permeable holes; the slow-release skeleton structure a skeleton is formed by pyrite particles of which the surfaces are coated with a mixture of a binding material and fiber reinforced ribs and aggregate particles of which the surfaces are coated with a mixture of the binding material and fiber reinforced ribs, the permeable holes are uniformly distributed in the slow-release skeleton structure, and the channels of the holes enable the water permeability coefficient of the ecological permeable materialto be not less than 10 mm / s. The nitrogen and phosphorus removal ecological permeable material has the characteristics of good water permeability, high molding degree, high specific surface area, highstrength, easiness in microbial biofilm formation and the like, can slowly release calcium ions and iron ions to remove phosphorus, realizes autotrophic nitrogen removal, and has a good purificationeffect on pollutants in water, especially total nitrogen and total phosphorus.