52results about How to "Strong pollution interception ability" patented technology

The invention discloses a natural mineral adsorption filtration agent, which comprises acidified zeolite, acidified attapulgite clay, acidified bentonite, acidified kieselguhr, volcanic rock and high-alumina clay. The preparation method of filtration agent is mixing, disintegrating, screening and packaging raw material to finished product. The filtration agent particles have rough surface, a lot of micropore inside, light specific gravity, large specific surface area and good adsorption capability, and are main raw material for preparing forming filtration material such as filtration plate, filtration block, filtration core, filtration pottery slice and filtration ring.

The invention discloses a natural mineral adsorption filter. The main point of the technical scheme is that the ingredients of the natural mineral adsorption filter are acidified zeolite, acidified attapulgite clay, acidified bentonite, acidified silicon It is composed of algae earth, volcanic rock and high alumina bauxite. The preparation method of the natural mineral adsorption filter is that the ingredients of the natural mineral adsorption filter are mixed, pulverized, screened and packaged into a finished product. Natural mineral adsorption filter particles have a rough surface and a large number of micropores inside, which have the characteristics of light specific gravity, large specific surface area and good adsorption performance. It is the main raw material for making various filter plates, filter blocks, filter cores, filter pottery and filter rings and other shaped filter materials.

The invention discloses a special apparatus for removing heavy metal ions in wastewater, and a method thereof. The method comprises the following steps: filling pyrophillite-reduced iron powder mixed powder into a first wastewater treatment device in order to realize preliminary treatment of heavy metals; filling silane coupling agent modified pyrophillite into a second wastewater treatment device in order to adsorb heavy metal ions not subject to the preliminary treatment and iron ions generated in the first wastewater treatment device; filling a magnetite filler into a third wastewater treatment in order to remove the iron ions generated in the first wastewater treatment device and pyrophillite or modified pyrophillite powder mixed in water; and carrying out an electrochemical process to recover the heavy metals. The treatment effect of the heavy metal ions in industrial wastewater can reach above 98% in the invention. Adsorption-saturated pyrophillite and modified pyrophillite are cleaned by an acidic solution in order to desorb above 70% of the heavy metal ions, and cleaned pyrophillite and cleaned modified pyrophillite are subject to alkaline activation for recycle, so the purposes of energy saving, emission reduction and full resource utilization are realized.

The invention provides a light filtration medium for water treatment and a preparation method and application thereof, and belongs to the field of water treatment. The light filtration medium for water treatment adopts granular foam glass. The preparation method of the light filtration medium includes the following steps: adding a foaming agent, a foaming agent promoter and a modifier into the fine glass powder, and mixing uniformly to obtain a mixed raw material; smelting and foaming the mixed raw material, and then sequentially cooling and smashing again, so as to obtain the foam glass which can be used as the light filtration medium for water treatment. The foam glass has the characteristics of being high in voidage, large in specific surface area, porous and light; during the using process, the filtering speed is high, the effluent quality is excellent, and the material filtering layer is quite easy to expand (with a highest expansion ratio of 200%) during back washing, which facilitates the back washing in a fast and effective manner and provides guarantee for performing microflocculation rapid filtration; in addition, the surface of the foam glass filtration medium is uneven with multiple corner angles, high in voidage and large in specific surface area, and has excellent suspended solids retention property.

The invention discloses an ultrafiltration system, which comprises an original water box and a pre-treatment system, wherein the parts of the pre-treatment system are connected through high-pressure pumps; the pre-treatment system is connected with a desalination system via a high-pressure pump; the desalination system is sequentially connected with an ozone sterilizer, a fine treatment system and an ultrapure water box; the pre-treatment system comprises a multi-medium filter, an acticarbon filter, a precise filter and a hollow fiber ultrafiltration system which are connected in sequence; the desalination system adopts a reverse osmosis device; the fine treatment system adopts EDI (Electronic Data Interchange) equipment. The ultrafiltration system disclosed by the invention has the advantages that the reverse osmosis device is adopted to replace a traditional used ion exchanger, and the desalination rate and recovery rate are high; in addition, not only is desalination realized, but also most bacteria, colloid and organic substances with large molecular weight are removed; the EDI equipment replaces a mixed ion exchange column, the chemical regeneration of acid and alkali is not required during running, so that a large amount of acid, alkali and water for cleaning are saved, the labor density is greatly lowered, and more importantly, the no waste acid or waste lye is discharged, so that the environmental protection is facilitated.

The invention relates to the field of sewage treatment and aims to provide a spheroidal composite adsorbent for sewage treatment. The spheroidal composite adsorbent is prepared from 8-10 parts of lignin, 6-9 parts of sulfydryl modified polyacrylamide, 2-3 parts of sodium alginate, 30-40 parts of sulfydryl modified quartz sand and 20-30 parts of sepiolite. The spheroidal composite adsorbent has thefunctions of adsorbing and removing organic matter, suspended matter and heavy metals in sewage, and has the good removal effect on the heavy metals in the acidic sewage and has the integrated effectof adsorption, flocculation and sedimentation, the contents of COD, SS, lead, cadmium, copper and mercury in treated river channel sewage all reach the stipulations of national standard surface waterenvironmental quality standard GB3838-2002 of the People's Republic of China, and the removal rate of heavy metals in acid heavy-metal heavily polluted wastewater reaches 99% or above.

A process for preparing the calcined natural minerals adsorbing-filtering agent includes such steps as proportionally adding its raw materials into stirrer, mixing, pressing to become sheets, drying in the sun, pulverizing, calcining, cooling and packing. It is used for the non-calcined filtering plate (or block or core) to clean the animal or plant cultivating water.

The porous filming material for water treatment consists of clay 30-60 wt%, loess 30-60 wt%, kaolin 5-20 wt% and pore creating material 5-20 wt%. The product of the present invention is spherical haydite, and has high mechanical strength, high erosion resistance, high wear resistance and stable physical and chemical properties as well as rich pores, rough surface, great specific surface area, long service life, high adsorption performance, etc. It has high dirt intercepting capacity and high filming efficiency, is suitable for the growth and propagation of microbe and may be used to eliminate organic matter, suspension, nitride, phosphate, etc from water.

The invention belongs to the technical field of sewage treatment and in particular relates to buried type glass fiber reinforced plastic integrated sewage treatment equipment and process. The buried type glass fiber reinforced plastic integrated sewage treatment equipment provided by the invention is wholly buried into the ground and comprises a grid tank, a regulation tank, a hydrolysis-acidification tank, an MBBR (Moving Bed Biofilm Reactor) tank, an inclined tube sedimentation tank, an intermediate water tank and a clean water tank, wherein the grid tank, the regulation tank, the hydrolysis-acidification tank, the MBBR tank, the inclined tube sedimentation tank, the intermediate water tank and the clean water tank are sequentially arranged in series. According to the buried type glass fiber reinforced plastic integrated sewage treatment equipment provided by the invention, the sewage treatment amount reaches 10m<3> / d to 200m<3> / d; sewage is treated for 24h and a designed treatment water amount is 0.5m<3> / h to 10m<3> / h; the treatment capacity per year reaches a grade of ten thousand tons or more; the buried type glass fiber reinforced plastic integrated sewage treatment equipment has the advantages of simplicity in operation, reasonable structure, high treatment efficiency, low investment cost and low operation cost.

The invention relates to a screen filter, which belongs to the water-saving irrigation technology field. The invention has the technical proposal that the screen filter comprises a shell, a water inlet, a water outlet and a drain valve. The invention is characterized in that multi-stage cylindrical wall surface type filter screens are coaxially arranged in the shell, the meshes of the filter screen at the surface close to the water inlet are large, and the meshes of the filter screen at the surface close to the water outlet are small. The filter screens of the filter provided by the invention adopt the multi-stage cylindrical wall surface type, and the filter is structurally divided into multiple layers of filter screens from coarseness to fine, for example, three layers of filter screens are adopted. A coarse filter screen is adopted at the position close to the water inlet, a fine filter screen is adopted at the position close to the water outlet, and a middle filter screen is adopted between the coarse filter screen and the fine filter screen. The structure can enable impurities with different particle diameters to be intercepted by different filter screens, thereby reducing the load of each filter screen and prolonging the working time of filtering.

The invention provides a two-stage treatment method for production wastewater, which includes the following steps: 1) reducing the pressure of the production wastewater, which is separated through a production separator, through an air floatation inlet ejector, and feeding the production wastewater into a rotational flow air floatation device for separation; 2) continuously discharging a continuous oil, bubble and scum layer, which is formed on the upper part in water in a pot body of the rotational flow air floatation device, into a sewage oil pot through a short pipe which is hung on the top and stretched into the pot, alleviating the separated water flow through a horizontal circular board in the middle-lower part, discharging the water through a water outlet, and feeding the water into a dual-medium filter through pressurization in a filter material feeding pump; and 3) when the treated water reaches a water injection standard, feeding the water into a degassing pot to mix the water with well water from a water source to perform reinjection, wherein back-wash water from the dual-medium filter is fed into the sewage oil pot. The two-stage treatment method has quick separation, good filter effects, strong sewage blocking capability, is stable in operation, is short in back-wash time and is complete in the back-wash, and is compact in equipment structure.

The invention relates to a filter and algae removal method by micro flocculation-terylene high elater fiber balls and equipment thereof. The method comprises: (1) the water to be treated and the flocculant which is added by a wriggle pump are mixed in an inflow pipeline in front of a fiber ball filter column, the water after mixing enters the fiber ball filter column, the filler of the filter column is terylene high elater fiber ball filter material, and the fiber ball filter column carries out reverse washing of low intensity at the end of the filter period; the equipment comprises an original water tank, a water storage tank and a drug adding groove, the original water tank is communicated with a pipeline mixer through a valve flow meter by a lift pump; the drug adding groove is communicated with the pipeline mixer by the wriggle pump, and a stirrer is installed in the drug adding groove; the apopore of the pipeline mixer sends the water to the water storage tank by the fiber ball filter column, and the terylene high elater fiber ball filter material is installed at the middle part of the filter ball filter column. By the terylene high elater fiber ball filter material with the characters of high porosity, large specific surface area, fast filter speed and strong pollutant stopping ability and long filter period, the effect on removing algae and turbidity substances in water is very obvious.

The invention discloses a method of preparation natural mineral adsorption filtration core. Key point of technical project is: selecting natural mineral adsorption filtration agent as raw material, moistening with water, pressing to cylindrical porous object, airing, roasting, cooling and getting the product. There is interconnection labyrinth-type micropore in the filtration core which has the excellence of large specific surface area, fast filtration velocity, good adsorption capability, high film suspension efficiency and strong sewage stop ability. The labyrinth-type micropore is benefit for organic bacterium growth and reproduction and decreases ammonia and nitrogen content of breed water body. The oxygen content of breed water body can increase by aeration process. The natural mineral filtration core can adsorb diversified harmful substance generated by organism metabolism and heavy metal, and is adapted for breed water purifying and other water quality process.

The invention relates to a cyclic utilization treatment device for vehicle washing sewage and laundry sewage and a water treatment method. The cyclic utilization treatment device mainly comprises a sewage inlet pipe, an aeration pipe, a recycled clean water outlet pipe, a T-shaped sewage back washing discharging pipe, T-shaped pipe for feeding sewage and discharging backwashed water, T-shaped pipe for feeding dirty cleaning liquid and discharging backwashed water, T-shaped pipe for feeding backwashing clean water and discharging clean cleaning liquid a sewage reactor, a sewage filter, a water cleaning chamber, a disinfection reagent adding box, a flocculation reagent adding box, a dirty cleaning liquid collecting chamber and a dirty cleaning liquid filter. The device and the method are widely applied in the field of water treatment for vehicle washing sewage, laundry sewage, bathing water, surface water, domestic sewage, reclaimed-water reuse water, industrial cycled water, and the like, achieve zero discharge of sewage, and recycle residue cleaning liquid in washing sewage, thus changing waste materials into things of value. The device and the method are characterized by integrated and compact structure, small occupied space, no need of addition of auxiliary facilities, good user compatibility, high water quality and high economic benefit.

The invention discloses a method for removing dust and oil from coal-chemical engineering wastewater. The method comprises following steps: (1), dust removing: wastewater enters a water channel through a dust removing water inlet valve and rotates for 360 degrees in the water channel to flow upwards, pressure difference is formed, the wastewater enters a center water distributor through a grid and a dust removing filter material under the action of the pressure difference and then flows out from a dust removing water outlet valve, suspended solids are intercepted by the dust removing filter material, and the dust removing of the wastewater is completed; (2), oil removing: the wastewater after dust removing enters a tank through an oil removing water inlet valve and moves downwards under the action of gravity, lipophilic groups of the filter material absorb dispersed oil drops in the wastewater when the wastewater passes an oil removing particle membrane, oil is enabled to be demulsified on the oil removing particle membrane, a thin film is formed, water after oil removing continuously flows downwards and is discharged from an oil removing water outlet valve, oil molecules are intercepted and accumulated to form oil drops, the enriched oil drops are separated in a large oil drop form and float upwards to the top end of the tank, and oil removing is completed. The invention further discloses a dust and oil removing system implementing the method.

A biologically active filtering material for water treatment and its roasting process by using clay as the principal raw material for the biologically active filtering material, charging lignin sulfonate plasticizing agent and polyvinyl alcohol foaming agent, wherein the biological activity is achieved through roasting process and biological modification. The advantages of the invention are strong biological adhesion, high performance of film suspension, good current fluidized form, easy backwash and strong dirt-blocking capability.

The invention discloses a method for carrying out oil and dust removal on wastewater by mechanical demulsification. The method is characterized in that the method comprises the following steps: firstly, mechanical demulsification; secondly, oil-water separation; thirdly, dust removal. The invention further discloses a system for carrying out the oil and dust removal on the wastewater by the mechanical demulsification implementing the method. The dosage of a demulsifier can be greatly reduced by the mechanical demulsification adopted by the invention; after oil-containing wastewater is mechanically treated by ultrasonic waves, the fluidity is greatly increased; in addition, after crude oil is stood for a long time, the viscosity of the crude oil does not recover; after ultrasonic mechanical treatment, the standing and staying time of the crude oil can be greatly shortened. By adopting the mechanical demulsification, the production cost can be effectively reduced, and economic benefits are increased.

The invention relates to a method for pre-treating polluted river water by adopting a biological semi-coke aerated filter. The method comprises the following steps of: (1) activating semi-coke granules with granule diameter of 5 to 6 millimeters and 10 to 15 percent KOH solution (or NaOH solution) in a constant temperature shaking water bath of 50 to 70 DEG C to prepare activated semi-coke; (2) carrying out bio-membrane culture and domestication of the activated semi-coke by adopting a stuffy aeration and low flow water inlet combined mode; and (3) selecting equipment which mainly comprises an aeration pump, a water inlet pipe, an air distribution device, a supporting plate, a pebble supporting layer, a semi-coke filler layer, a water outlet pipe, a backwashing water inlet pipe, a backwashing water outlet pipe and the like. The method for removing pollutants from the polluted river water by adopting the biological aerated filter of the activated semi-coke filter material has good effect, low price and low running expense, and is a micro polluted water pre-treatment method with good development prospect.

The invention relates to the technical field of sewage treatment, and discloses a novel lightweight high-porosity ceramic filter material and a preparation method thereof. Fly ash floating beads, coal gangue and diatomite are used as aggregates, hydroxymethyl cellulose is used as a binder, dolomite powder, a pore-forming agent and limestone are used as auxiliary materials to prepare the ceramic filter material, and carbon nanofibers are attached to the surface of the ceramic filter material. The filter material is strong in pollutant holding capacity, high in filter material utilization rate and slow in water head loss increase, the filter speed can reach 16m / h, the working period is more than 24h, and the periodic water yield reaches 800-1000m < 3 > / m3 and is 1.5-2 times of that of a quartz sand filter material under the same condition.

The invention relates to a standard treatment method for high sulfur containing waste alkali liquor in the petroleum and coal chemical industry and belongs to the technical field of sewage treatment.The standard treatment method comprises the steps: firstly, sending waste alkali liquor into an oil separation adjusting tank to remove oil and suspended matters, mixing the waste alkali liquor with aliquid-state desulfurization catalyst, sending into a desulfurization tower, fixing a solid-state desulfurization catalyst in the desulfurization tower, staying the waste alkali liquor in the desulfurization tower for 20 to 25 h, then sending into a pH adjusting tank to adjust a pH to 6 to 10, then sending into an oil separator to remove impurities of emulsified oil, sending into a water distribution adjusting tank, diluting reaction liquid to 10 to 15 times, controlling sewage COD to be below 2000 mg / L, adding N and P compound and an osmotic pressure regulator, then sending into a primary aerating biochemical tank, staying for 40 to 50 h, then sending into a radial sedimentation tank, sending liquid supernatant into an ozone contact oxidation tank, then flowing into a secondary aeratingbiofilter, staying for 5 to 15 h, finally sending into a monitoring tank and draining out after indexes are detected and can reach the standard. The standard treatment method disclosed by the invention has the advantages of lower reaction temperature, low operation cost, stable treatment effect and the like.

A biologically active filtering material for water treatment and its roasting process by using clay as the principal raw material for the biologically active filtering material, charging lignin sulfonate plasticizing agent and polyvinyl alcohol foaming agent, wherein the biological activity is achieved through roasting process and biological modification. The advantages of the invention are strong biological adhesion, high performance of film suspension, good current fluidized form, easy backwash and strong dirt-blocking capability.

The invention discloses a preparation method of an iron-carbon catalyst for Fenton wastewater treatment. The iron-carbon catalyst is prepared from 55-70 wt% of iron oxide powder, 10-15 wt% of fly ash,2-5 wt% of clay, 3-5 wt% of Pingxiang Changfeng porcelain clay powder, 3-5 wt% of natural manganese sands, 10-20 wt% of zinc oxide waste residue powder and 0.3-1 wt% of potassium ferrate through thesteps of ball milling, granulation, drying and high-temperature sintering. Compared with catalysts in the prior art, the iron-carbon microelectrolysis catalyst in the invention has the advantages of good treatment effect, low production cost, convenience in operation and maintenance, wide application range, low power and resource consumption, fast speed and stable effect in a treatment reaction, no secondary pollution, improvement of the biodegradability of wastewater, and facilitation of the sedimentation and biofilm colonization of sludge; and the preparation method can improve the strength,the specific surface area and the porosity of the catalyst and improve the treatment effect and the service life of the catalyst in order to facilitate backwashing.

The invention relates to a water treatment device, and in particular relates to a novel grid flocculation sedimentation tank. The grid flocculation sedimentation tank comprises a shell, and is characterized in that a water inlet, a grid mixing area, a flocculation reaction area and a flocculation sedimentation area are arranged in the shell and are sequentially arranged in parallel and communicated with one another, wherein the flocculation sedimentation area is formed by combination of tilted arranged annular corrugated plates. The novel grid flocculation sedimentation tank is integrated with mixed flocculation reaction, shallow-tank separation and sedimentation, and has the advantages of high mixing and reacting efficiency, strong pollutant intercepting capability, simple operation and low maintenance cost.

The invention discloses a manufacturing method of a high-efficiency inorganic film filtering plate for water treatment. The manufacturing method comprises the following steps: firstly stirring emery,Suzhou soil, alpha-Al2O3, titanium aluminum carbide, feldspar, methyl cellulose, dextrin, lepidolite, bentonite, talcum powder and oleic acid according to the matching ratio, carrying out decaying andmechanical pressing for molding, drying and sizing, spraying a layer of zeolite slurry film on the platy surface, primarily sintering, coating film slurry consisting of the emery, the Suzhou soil, the feldspar, titanium oxide sol, fiber, the talcum powder, the bentonite, the dextrin, the lepidolite and sodium humate, secondarily sintering after natural drying, cooling, discharging from a furnace,assembling, inspecting, packaging and warehousing. The high-efficiency inorganic film filtering plate is widely used for treatment of industrial waste water in chemistry, foods, medicines, chemical fertilizer, metallurgy, paper making and printing and dyeing and the like, and has the advantages of high filtering efficiency, strong pollutant intercepting capability, good effluent quality, long service life and low operation cost.

The invention discloses a special apparatus for removing heavy metal ions in wastewater, and a method thereof. The method comprises the following steps: filling pyrophillite-reduced iron powder mixed powder into a first wastewater treatment device in order to realize preliminary treatment of heavy metals; filling silane coupling agent modified pyrophillite into a second wastewater treatment device in order to adsorb heavy metal ions not subject to the preliminary treatment and iron ions generated in the first wastewater treatment device; filling a magnetite filler into a third wastewater treatment in order to remove the iron ions generated in the first wastewater treatment device and pyrophillite or modified pyrophillite powder mixed in water; and carrying out an electrochemical process to recover the heavy metals. The treatment effect of the heavy metal ions in industrial wastewater can reach above 98% in the invention. Adsorption-saturated pyrophillite and modified pyrophillite are cleaned by an acidic solution in order to desorb above 70% of the heavy metal ions, and cleaned pyrophillite and cleaned modified pyrophillite are subject to alkaline activation for recycle, so the purposes of energy saving, emission reduction and full resource utilization are realized.

The invention discloses a reverse osmosis membrane purification system which comprises a cleaning device, a reverse osmosis membrane group and a high-pressure pump, 12 reverse osmosis membranes are arranged in the reverse osmosis membrane group and are distributed in a 3*4 matrix, and the reverse osmosis membrane group comprises a parallel membrane group and a series membrane group, the parallel membrane group comprises a parallel membrane group I, a parallel membrane group II, a parallel membrane group III and a parallel membrane group IV, and the series membrane group comprises a series membrane group I, a series membrane group II, a series membrane group III and a series membrane group IV. According to the invention, reverse osmosis series and parallel use modes are simultaneously used and an automatic cleaning device is added, so that the water yield is increased and the service life is prolonged; and the durable top-level reverse osmosis membrane with high desalination rate and high water yield under the condition that raw water is low in temperature and high in pollution environment can filter five types of water sources of surface water, the filtering efficiency is high, the pollutant intercepting capacity is high, and the system can be repeatedly used after being cleaned and is convenient to maintain.

The invention relates to an advanced treatment method of printing and dyeing wastewater and the equipment thereof. The advanced treatment of the printing and dyeing wastewater is realized by the combined process of the ultrafiltration technology and the micro flocculation deep-bed filtration technology which take the self-made polyester high elastic yarn fiber ball filter material as the filter medium. The equipment comprises a fiber ball filter column (5) and an ultrafiltration membrane component (39), (41), etc. The combined process has remarkable removal effect on the turbid material in the printing and dyeing wastewater. Furthermore, the micro flocculation deep-bed filtration technology is taken as the pretreatment technology of the ultrafiltration to some extent, which greatly reduces the load of the ultrafiltration membrane and decreases the probability of occurrence of membrane pollution. At the same time, the ultrafiltration is taken as the subsequent treatment, which can solve the problem of raising water turbidity at initial stage caused by the increase of the filtration speed when the deep-bed filtration carries out.

The invention discloses a complete set of integrated equipment for cleaning quartz sand filter material, which includes a cleaning box and an equipment box. A sand delivery pipe is arranged at the upper end of the cleaning box, and a sand delivery pump is arranged on the sand delivery pipe. It is characterized in that: The left end of the cleaning box is provided with a first motor, the output end of the first motor is provided with a rotating shaft extending into the cleaning box, the rotating shaft is provided with a stirring mechanism, and the stirring structure includes a driving column, a driving column, the The inside of the drive column is provided with a drive chamber, the drive column is provided with a number of stirring shafts passing through the drive chamber, the inner right end of the drive chamber is provided with a second motor, and the output end of the second motor is provided with a drive gear, each rotating shaft Driven gears are arranged at positions inside the driving cavity, the rightmost driven gear meshes with the driving gear, and two adjacent driven gears mesh with each other. The invention has the advantages of simple structure, convenient use, high cleaning efficiency, good effect and less waste of resources.

The invention provides a horizontal type filter device for sea water desalination. The horizontal type filter device is provided with a tank, a first end socket and a second end socket. Through the horizontal type filter device for sea water desalination, the modular design of a filter structure is realized, the on-site mounting is relatively convenient and quick, a backwashing siphon structure and an improved air distribution structure are realized, the backwashing flow rate is automatically increased within the overall length scope of the barrel and filtering materials within the overall length scope of the barrel are uniformly stirred and overturned, and the problem of insufficient backwashing caused by the high-flowing surface of a horizontal type filter is solved. The invention also discloses a calculating method for calculating the physical dimension of a backwashing discharging pipe opening. The horizontal type filter device for sea water desalination has the advantages of high effluent quality, high dirt-intercepting capacity, large flowing surface area, seawater corrosion resistance, uniform air distribution and backwashing, easiness in operation, small occupying area, and the like; the horizontal type filter device meets the requirement of large-scale seawater desalination practical production and is especially suitablefor a large seawater desalination project; the horizontal type filter device has obvious economic benefits and social benefits.

The porous filming material for water treatment consists of clay 30-60 wt%, loess 30-60 wt%, kaolin 5-20 wt% and pore creating material 5-20 wt%. The product of the present invention is spherical haydite, and has high mechanical strength, high erosion resistance, high wear resistance and stable physical and chemical properties as well as rich pores, rough surface, great specific surface area, long service life, high adsorption performance, etc. It has high dirt intercepting capacity and high filming efficiency, is suitable for the growth and propagation of microbe and may be used to eliminate organic matter, suspension, nitride, phosphate, etc from water.