92results about How to "Good water purification effect" patented technology

The invention relates to a microbial agent for purifying river wastewater and a preparation method of the microbial agent. The microbial agent comprises the following components in parts by weight: 20-40 parts of bacillus natto, 10-30 parts of nitrobacteria, 5-15 parts of white-rot fungi, 5-15 parts of pseudomonas and 10-40 parts of photosynthetic bacteria. The microbial agent is well-adapted and has the capabilities of fast forming dominant bacterial communities and replenishing indigenous rhizobia to the water body; and the microbial agent can be used for reducing the COD (Chemical Oxygen Demand), NH3-H, total nitrogen, TP (Total Phosphorus) and the like, removing odor and color and producing high-activity bio-enzyme to suppress the growth of harmful bacteria and acceleratively decompose residual baits as well as animal and plant residues, and a remarkable water quality purifying effect is achieved.

The invention relates to a biology-electrochemistry compound system for processing dye waste water and the operation system. The micro-electrolyzing filter connects to biological film oxygen aversion reactor through pipeline. The liquid outlet of reactor connects solid recycling integration oxidation channel through pipeline. The liquid outlet of oxidation channel connects to electrolyzing flocculating chamber. The gas outlet of oxidation channel and reactor connects to biology deodorization reactor through pipeline. The invention would improve the biochemistry feature of the waste water, and oxidation channel could remove the organic in water, the electrolyte tank could remove suspended particle, and the biology deodorization reactor would remove the odor from waste water. The invention could make the water quality after being processed reach the national standard of complex discharging.

The invention discloses a method for preparing inorganic polymeric flocculant polyferric silicate sulfate and a wastewater treatment method. Ferrous sulfate is oxidized into polyferric sulfate through the acclimated thiobacillus ferrooxidans; polymerization reaction is conducted between the polyferric sulfate and the active polysilicic acid solution; and then the polymerization reaction product is left to stand and ageing to obtain the brownish red liquid polyferric silicate sulfate. The product brownish red liquid polyferric silicate sulfate is applicable to the purification of domestic sewage, printing and dyeing wastewater and heavy metal wastewater and COD removal rate, decoloring rate and heavy metal removal rate can reach more than 90%.

The invention belongs to the technical field of environment-friendly water treatment, particularly relates to a water purifying agent for wastewater treatment of tire production enterprises and further relates to a method for treating wastewater of the tire production enterprises by adopting the water purifying agent. The water purifying agent contains an inorganic water purifying agent, a microbial water purifying agent and an enzyme preparation, wherein the inorganic water purifying agent is prepared from the ingredients in parts by weight: 5-20 parts of polyaluminum chloride, 4-16 parts of polyacrylamide, 2-15 parts of ferrous sulfate and 5-16 parts of aluminum sulfate; the microbial water purifying agent is prepared from the ingredients in parts by weight: 0.5-2.0 parts of nitrobacterium powder, 0.4-1.4 parts of paracoccus denitrificans powder, 0.2-0.8 part of thiobacterium powder and 0.3-1.2 parts of aniline degrading bacteria powder; the enzyme preparation is prepared from the ingredients in parts by weight: 0.1-1.5 parts of pectinase, 0.4-1.5 parts of cellulase, 0.1-0.8 part of dehydrogenase, 0.2-0.8 part of oxidoreductase and 0.1-0.6 part of xylanase. The water purifying agent and the method have the beneficial effects that by adopting the water purifying agent for wastewater treatment, disclosed by the invention, the water purifying effect is good, the water purifying speed is high, the safety is high, and no secondary pollution is caused; materials with adsorption capacity are used as raw materials and are assisted with microbes, so as to treat the wastewater, so that the range of use is wide, the transparency of treated water is extremely high, and recycling can be achieved.

The invention belongs to the technical field of environment-friendly water treatment, particularly relates to a water purifying agent for treating sewage resulting from recovery of waste/used tires and further relates to a method for treating the sewage resulting from the recovery of the waste/used tires by adopting the water purifying agent. The water purifying agent contains a flocculation water purifying agent, a microbial water purifying agent and an enzyme preparation, wherein the flocculation water purifying agent is prepared from polyaluminum chloride, polyacrylamide, ferrous sulfate and aluminum sulfate; the microbial water purifying agent is prepared from nitrobacterium powder, paracoccus denitrificans powder, pseudomonas aeruginosa powder, candida lipolytica powder and bacillus megaterium powder; the enzyme preparation is prepared from pectinase, dehydrogenase, phosphodiesterase, oxidoreductase and xylanase. The water purifying agent and the method have the beneficial effects that by adopting the water purifying agent for treating sewage, disclosed by the invention, the water purifying effect is good, the water purifying speed is high, the safety is high, and no secondary pollution is caused; materials with adsorption capacity are used as raw materials and are assisted with microbes, so as to treat the sewage, so that the range of use is wide, and recycling can be achieved.

Relating to the field of water environment ecological restoration, the invention provides a high efficiency combined restoration technology for urban and rural river polluted river water bodies. The invention comprehensively utilizes a solar energy micropore aeration technology, an ecological base, a microorganism-enzyme composite reinforcement restoration technology, an ecological floating island, aquatic animal throwing and other methods to reduce nitrogen, phosphorus and other organic matters and pollutants in water bodies, thus purifying river water bodies, optimizing the aquatic ecosystem, and simultaneously achieving a landscape optimizing effect.

The present invention provides a photocatalytic-oxidation biological floating bed algae removing device, comprising a photocatalytic oxidation device, a floating body and a biological floating bed. The photocatalytic oxidation device is mounted on a light corrosion-resistant frame; left and right sides of the photocatalytic oxidation device are connected with the floating body; the front sides of the left and right floating body and the front side of the photocatalytic oxidation device are connected with the biological floating bed; symmetrically, the back sides of the left and right floating body and the back side of the photocatalytic oxidation device are also connected with the biological floating bed. The photocatalytic-oxidation biological floating bed algae removing device makes full use of the advantages of two technologies of photocatalytic oxidation technology and the biological floating bed technology so that in one aspect, the weak defect of the photocatalytic oxidation technology in removing organic substances and nitrogen and phosphorus is made up by the biological floating bed; in another aspect, the algae, bacteria are removed by the photocatalytic oxidation technology and the persistent organic substances in water are decomposed. The device is an integration of algae removal, sterilization, denitrification, phosphorus removal and the like so that the processed eutrophic water can be treated completely.

The invention discloses a composite artificial ecological floating island and a construction method thereof. The floating island comprises a sludge ecological floating island unit or a plurality of sludge ecological floating island units and a plurality of phycomycete biomembrane vector units. The construction method comprises the following steps: sludge powder which is subjected to innocent treatment, light materials and an inorganic adhesive are taken as raw materials to prepare the sludge ecological floating island units; porous macromolecular light suspension filler is simply processed to obtain the phycomycete biomembrane vector units; the phycomycete biomembrane vector units are pretreated and fixed on the sludge ecological floating island through flexible materials; and various floating island units are flexibly connected with each other through sponge or polystyrene foam. The composite artificial ecological floating island has raw materials available, low cost, stable chemical properties, friendly environment and no secondary pollution, reasonably utilizes waste sludge of sewage disposal plants, reduces urban sludge, and achieves the aim of reutilization of waste resources; and water purifying plants can be planted to form a miniature ecological community with microorganisms, have an all-around solid purification function on polluted water bodies, and the water purifying effect is better than that of a single floating island and phycomycete biomembrane vectors.

The invention relates to the technical field of polluted water body improvement, and discloses a method for microorganism and aquatic plant cooperative purification of a polluted water body; the method comprises the following steps: A, the tube interior of a microorganism slow-release tube is filled with a compound microorganism preparation; B, the microorganism slow-release tube is applied in the polluted water body or bottom mud by aquatic plants; and C, along with the growth of the aquatic plants, microorganisms in the microorganism slow-release tube are gradually released and are attached to submerged plants, and a biofilm is formed. The microorganism and aquatic plant cooperative purification of the polluted water body is adopted. The microorganism slow-release tube filled with the compound microorganism preparation is adopted, on one hand, stability and washing resistance are greatly improved, on the other hand, the load capacity of microorganism bacteria and the proliferation of the microorganism bacteria are improved, and in general, the purpose of increasing the efficiency of wastewater treatment is achieved.

The invention relates to a silt and sewage treatment method, and belongs to the technical field of mine sewage treatment. The method comprises the following steps: (1) performing silt separation, namely performing primary separation on the silt and the sewage, and separating sand out; (2) performing sedimentation treatment, namely adding 0.2 to 0.4 mass percent solution of anionic polyacrylamide into the sewage, then adding 0.1 to 0.3 mass percent solution of anionic polyacrylamide into the sewage after sediment is generated, and separating the sediment out; and (3) performing sediment filter pressing, namely filter-pressing the sediment separated out by the step (2). The method of the invention effectively solves the mine sewage treatment problem, and separates three useful substances out comprising coarse sand, fine sand and sludge so as to increase the creation income of the enterprise.

The invention relates to a high-efficiency broad spectrum flocculant, which is mainly prepared by the following compositions in weight percentage: 40 to 50 percent of cationic polyacrylamide, 0.8 to 1.2 percent of OP-10 emulsifier, 8 to 13 percent of polysilicic aluminum iron sulfate, 0.8 to 1.2 percent of sodium hydroxide and 35 to 48 percent of vaal water. The preparation method for the high-efficiency broad spectrum flocculant is as follows: the cationic polyacrylamide, the polysilicic aluminum iron sulfate, the OP-10 emulsifier and the vaal water are added into a reaction kettle of a vacuum dispersion machine and stirred for 15 to 20 minutes; and the sodium hydroxide is added into an emulsifiable solution and continuously stirred for 20 to 30 minutes. The high-efficiency broad spectrum flocculant simultaneously has the advantages of an inorganic flocculant and an organic flocculant and simultaneously overcomes the inherent defects of the inorganic flocculant and the organic flocculant. The high-efficiency broad spectrum flocculant has wide application scope, has good water purifying effect on water quality with various concentrations, nonferrous wastewater and a plurality of kinds of industrial wastewater, and can be widely used for purification treatment of industrial waste water in the printing and dyeing, paper-making, chemical industry and so on.

The invention discloses a self-floating ecologic landscape floating bed and a building method thereof. The self-floating ecologic landscape floating bed comprises a floating body and a planting structure arranged on the floating body and used for planting aquatic plants, the floating body comprises a flexible net cage and multiple blocky floating bodies filled in the flexible net cage, and the flexible net cage is used for insertion planting of water-resistant ligneous plants. The floating body can be formed by filling the blocky floating bodies in the flexible net cage, so that compared withthe prior art, the structure is high in flexibility and impact resistance and long in service life; existing floating beds are limited structurally to only plant herbaceous aquatic plants. The structure formed by the flexible net cage and the blocky floating bodies enables insertion planting of the ligneous plants, root systems of the ligneous plants are higher in self-cleaning absorption ability,and the ligneous plants can cooperate with aquatic plants to form landscape effect.

The invention discloses a method for treating polymer-driven oilfield sewage. The method comprises the following steps of: adding polyether and cationic polyacrylamide into polymer-driven oilfield sewage; and uniformly mixing to perform oil removal and water purification on the polymer-driven oilfield sewage, wherein the polyether is a polyoxyethylene-polyoxypropylene-polyoxyethylene block copolymer or a polyamine-containing polyoxypropylene-polyoxyethylene copolymer. The method has the advantages that: (1) both the polyether and cationic polyacrylamide are water-soluble, and can be fully dissolved into sewage for being brought into play; (2) the polyether and cationic polyacrylamide can be added segmentally or in a mixed way according to the property of sewage, and an original sewage treatment flow is not required to be changed; (3) oil removing and water purifying effects are superior to single use of a single-component agent; and (4) a large quantity of adhesive floccules are not produced specific to polymer-bearing sewage.

The invention discloses an ecological type manual fast-permeability sewage processing system, which is used for purifying and processing sewage. Suspended solid in the sewage can be firstly intercepted by a grid tank (1), and the sewage can then flow into a micro aeration tank (3) through a drainage pipeline which is arranged at the lower part of a regulating tank (2) after the water quality and the water quantity are subjected to equalizing regulation by the regulating tank (2); and the sewage can flow into an ecological fast-permeability tank (4) to be subjected to purification processing after being subjected to aeration processing by the micro aeration tank (3), is collected by a water collecting pipeline (7) which is arranged at the bottom, and can be discharged after flowing into a post-positioned denitrification tank (5) and being subjected to denitrification processing. The ecological type manual fast-permeability sewage processing system disclosed by the embodiment of the invention has the advantages of being less in field limit, less in occupied area, high in hydraulic loading, good in water outlet efficiency and easy in operation and management; and due to the implementation of the ecological type manual fast-permeability sewage processing system, the removing ability for TN (Total Nitrogen) and TP (Total Phosphorus) is increased, each water outlet water quality index is stably up to the level A emission standard, the investment cost and the running cost can be reduced, and the ecological landscape effect can be increased.

The invention discloses a composite advanced sewage treatment method. The method comprises the following steps: 1, performing flocculation and precipitation; 2, performing medium filtration; 3, performing ultraviolet and ozone pretreatment; 4, performing ultrafiltration membrane treatment; 5, performing heavy metal ion enrichment and removal; and 6, performing reverse osmosis treatment. According to the composite advanced sewage treatment method provided by the invention, most of the impurities and organic matters are adsorbed by a flocculating agent with excellent performance, the organic matters are directly oxidized into volatile gases to escape by adopting an ultraviolet ozone reactor, the heavy metal ions are enriched and adsorbed through electrostatic spinning fibers under the electric field action, and most of the inorganic salts are removed through reverse osmosis. The composite advanced sewage treatment method provided by the invention is simple in operation, high in efficiency and low in cost, secondary pollution is avoided, high-quality recycled water can be obtained, and zero emission of industrial wastewater is realized.

An ecological water purifying agent used for urban river course purification is disclosed. The water purifying agent is obtained by mixing complex microorganisms, bio-enzymes, a curing agent and plantextract products. The complex microorganisms include bacillus coagulans, nitrifying bacteria, denitrifying bacteria, rhodopseudomonas palustris, photobacteria and yeast. The bio-enzymes include lipase, amylase, laccase and cellulase. The curing agent includes zeolite powder, attapulgite clay and montmorillonite. The plant extract products include bamboo juice and a moringa oleifera extract product. A preparing method of the ecological water purifying agent used for urban river course purification is also disclosed. The water purifying agent has advantages of significant water purification effects through combined functions of the bio-enzymes, the curing agent and the plant extract products, and great practical significance for urban river course purification.

The invention relates to the technical field of self purification of riverways, in particular to an ecological system for improving the self purification capacity of a riverway and a construction method of the ecological system. The system comprises the riverway, side slopes arranged on the two sides of the riverway and infiltration dams arranged on the riverway at intervals, wherein a stone purification layer is arranged on the surface layer of the river bottom of the riverway. A soil layer is further arranged on the stone purification layer. Water is arranged on the soil layer. An aquatic plant community layer is arranged on the surface layer of the water. Ecological bags are arranged on the side slopes. A vegetation layer is arranged on the surface of each ecological bag. The complete riverway ecological system is constructed in a staging manner through a chemical method, a biological method and an ecological method according to different water quality conditions; the water qualityis purified, and meanwhile the self purification capacity of the water is improved; the original ecological system of the water is restored; no secondary pollution is generated; and it is guaranteed that the repaired riverway ecological system operates stably for a long time.

The invention relates to a method for removing bromide ions out of bromide ion-containing drinking water. The method is characterized by comprises the following steps of: before the bromide ion-containing drinking water is treated by using an ozone-biologic activated carbon process, adding 0.5-1mg/L potassium permanganate into raw water, preoxidizing for 3-5 minutes, and then sequentially adding 12-18mg/L polymeric aluminum by Al and 8-12mg/L ferric trichloride by Fe for coagulating, wherein the mass concentration ratio of polymeric aluminum to ferric trichloride is 3:2. The method is simple to operate and safe and reliable, the bromide ion content (100-100mu g/L) of the raw water is reduced by 45-70%, and the purpose of controlling the bromine disinfection by-product generation in the later ozonation bromate and disinfection period is reached; therefore, the method has wide application prospects.

The invention discloses a method for preparing a microecological preparation via mixture synchronous fermentation of yeasts and lactic acid bacteria and application of the method. According to the technical scheme, a culture medium is made from 2.5% of molasses, 0.8% of yeast extract, 0.2% of diammonium hydrogen citrate, 0.5% of sodium acetate, 5% of tomato juice, 0.2% of monopotassium phosphate and 0.02% of manganese sulfate, and has pH of 6.0. The method of mixed fermentation includes: inoculating a strain accounting for 1-3% by volume of the fermentation culture medium, fermenting at 25-31 DEG C, stirring at 100-150 rpm, and fermenting for 17-23 h; mixing the fermentation broth and attapulgite in a mass ratio of 1:2, and airing to obtain a composite microecological preparation. The composite microecological preparation prepared herein has high concentration of effective live bacteria, has long shelf life and has prominent water-purifying effect, fewer steps such as multi-tank fermentation and post-fermentation mixing are required in the conventional preparation process of microecological preparations, bacterial staining chances are slimmed, and the production cost is reduced as industrial leftovers are used as main fermentation materials.

The invention discloses a preparation method of a hydraulic engineering construction material. Aggregate particles and polymers are prepared by optimizing construction waste aggregate, and the aggregate in construction waste is provided with a microorganism layer capable of water purification, so that the material has a good water purification effect.

The invention relates to filtering foam and a production method thereof. The production method comprises the steps of: firstly, grinding tourmaline to obtain 400-800 meshes of fine powdered tourmaline, then mixing and stirring the fine powdered tourmaline and polyether resin by weight ratio of 1:100, adding distilled water to the mixed solution after uniformly stirring, controlling the moisture content to reach 0.2 percent and stirring for 1 hour, then adding toluene diisocynate and fully and uniformly stirring to obtain a pre-aggregation, wherein the weight ratio of the toluene diisocynat to the polyether resin is 40:100, then evenly stirring the pre-aggregation, a stannous octoate and a triethylene diamine water solution, foaming and molding, then curing, testing and tapping by blasting, and finally obtaining the filtering foam. The filtering foam has effects of both impurity filtration and favorable water purification, can effectively solve the technical problem of secondary pollution of municipal tap water and improve the quality of drinking water of terminal users.

The invention relates to a production technology for preparing a polyferric chloride coagulant from a seamless steel pipe acid-washing waste liquid. According to the invention, seamless steel pipe acid-washing iron-containing waste hydrochloric acid liquid is used as a raw material, and a step-by-step-oxidation method is adopted. During the initial phase, air or oxygen is used for oxidation, and nitric acid is used as a catalyst; and during the later phase, a trichloroisocyanuric acid oxidizing agent is used for oxidation. The reaction is completely thorough, and conversion efficiency is high. As isopropanolamine is used as a stabilizing agent, product quality is stable, and performance is excellent. Iron content of a product prepared by the method reaches 11.6% and above, basicity reaches 16.8% and above, and stability is good. When the coagulant is used in flocculation tests of simulation wastewater and urban domestic wastewater, turbidity removal rate reaches 90.0% and above. The coagulant has a good water purification effect. According to the technology, a polyferric chloride coagulant is prepared at normal temperature and at normal pressure without external heating, and energy consumption is little. The technology is simple. By the technology, the environmental protection purposes of dealing with waste by waste and turning waste into wealth can be achieved, cyclic utilization of waste is realized, and good economic benefit and social benefit can be generated.

The invention specifically relates to a method for recovering a protein from heparin sodium extraction waste liquid, which comprises the following steps: adding an aluminum salt solution in heparin sodium extraction waste liquid, and stirring; after uniformly stirring, adding a flocculant solution, and stirring; when a large amount of flocculent precipitate appears, standing; drawing off the supernatant, and collecting the precipitate; and drying to obtain the protein. According to the invention, the used polyaluminum chloride product has high bridging adsorbability, and physical and chemical processes such as condensation, adsorption, precipitation and the like are accompanied in the hydrolytic process. The polyaluminum chloride structurally comprises a shape-variable multi-element carboxyl complex, has a high flocculent precipitation speed and a wide applicable pH value range, and causes no corrosion to pipeline equipment. The high molecular weight polyacrylamide forms bridges among the adsorbed particles to generate flocs, thereby being beneficial to settling of the particles; and the polyacrylamide is low in consumption, high in efficiency and easy to realize post treatment.

The invention relates to a coagulation process in water treatment purification technology, wherein metal salt flocculating agent and aquadrate starch are mixed in the form of water solution, and are charged into the water to be processed, the aquadrate, dried maize starch and water solution are mixed for mixing reaction for 3-4 hours under the temperature condition of 90-100 deg. C. The invention realizes fine water purification effect and less influence from water temperature.

The invention discloses preparation and application of a modified straw fiber adsorption material. The preparation method includes the steps of: 1) crushing straw, then immersing the crushed straw inalkali liquor, and performing separation; 2) carrying out etherification reaction and amination reaction successively in the treated straw sample; and 3) adding a phosphorylation agent into the obtained product for phosphorylation treatment, thus obtaining the modified straw fiber adsorption material. Specifically, the phosphorylation agent adopted in step 3) is a mixed solution containing paraformaldehyde and phosphorous acid. The method has the characteristics of mild reaction conditions, simple operation, and cheap and easily available raw materials. The adsorption material prepared by themethod has a good adsorption effect on sulfonamide antibiotics.

The invention discloses an underwater illumination regulating and control device which is used for being distributed in a water area needing light. The underwater illumination regulating and control device comprises a light path device capable of floating on the water surface, a light-transmitting area is arranged on the main part of the light path device, the light path device is a concave lens or a light transmitting body with the optical property equal to that of the concave lens, the light collecting face of the light path device is upward, and the light diffusion face of the light path device is downward, so that the light path device projects light to blocked areas below and around the underwater illumination regulating and control device. The underwater light projecting range of the underwater illumination regulating and control device can be widened to dead corner areas, the needed arrangement area and number are greatly reduced, the growing space of floating plants cannot be occupied a lot, then the water purifying effect is guaranteed, manufacturing cost and use cost are relatively low, and the underwater illumination regulating and control device is suitable for being applied and popularized within in a large range.

The invention provides a rice field water purifying agent with sludge as a matrix and relates to the technical field of sewage treatment. The water purifying agent is prepared from 500-650 parts of sludge, 50-150 parts of quick lime, 50-150 parts of montmorillonite powder, 20-50 parts of crystal powder and 20-35 parts of sodium hydrogen phosphite. The water purifying agent has the advantages that the characteristics of fast adhesion settling of the sludge and the sludge containing rich plant auxin are adopted and combined with the quick lime for sterilization and deodorization, sodium hydrogen phosphite is used for activating lime ions, the sterilizing effect of the lime can be better, pesticide residues in the sludge can be removed, by the cooperation with the montmorillonite powder and the crystal powder, total suspended solids in water in a rice field can be eliminated thoroughly, a fertilizer mixture mixed and dissolved in the water can be wrapped to deposit on the water bottom, when it rains, the fertilizer mixture can not run off along with rainwater, nutrients of the sludge can support growth of rice seedlings, and the quick lime in the composition has an inhibition effect of rice blast. The water purifying agent is used in the dry field, can preserve moisture, resist disasters and improve soil, and plays important roles in sludge return to the field, sludge water purification and country ecology scene protection and restoration.

The invention provides a hollow fiber membrane module and a water treatment apparatus with it. The hollow fiber membrane module comprises a water distributing assembly and hollow fiber membranes, wherein the water distributing assembly has a plurality of water distributing partition sheets, the plurality of water distributing partition sheets are uniformly distributed on an outer wall of a central tube of the water distributing assembly, and the plurality of water distributing partition sheets extend in a radial outward manner from the outer wall of the central tube and simultaneously axially extends along the central tube to one end of the central tube from the other end of the central tube in order to divide the periphery of the central tube into a plurality of axial membrane filament accommodation zones; the hollow fiber membranes are uniformly distributed in the plurality of axial membrane filament accommodation zones; and the central tube is provided with a plurality of water flow holes. The module can ensure the uniform distribution of the hollow fiber membranes, so the purified water quality is guaranteed, and it is convenient to manufacture and assemble.

The invention discloses an efficient phosphorus removal ecological ditch for farmland non-point source pollution and a paving method thereof, belonging to the field of farmland non-point source pollution treatment. The efficient dephosphorization ecological ditch for farmland non-point source pollution comprises a ditch body, wherein two side slopes and a bottom which are made of ecological permeable materials are laid on the ditch body, and the permeability coefficient of the ecological permeable material laid at the bottom of the ditch is larger than the permeability coefficient of the ecological permeable material laid on the side slopes of the ditch. The ecological permeable materials capable of slowly releasing calcium and iron ions and having different permeability coefficients are laid on the side slopes and the bottom of the ditch, so phosphate in a water body undergoes chemical precipitation together with calcium and iron ions, and the phosphorus removal effect is achieved. The ecological ditch can improve the phenomenon that phosphorus in surface water exceeds the standard for a long time and reduce the eutrophication degree of the water body.

The invention relates to a sewage purifier preparation method and a purifier thereof and belongs to the field of oily sewage treatment of the petrochemical industry. Aiming at the problem that the existing treatment agent has few treatment effects, the invention provides the sewage purifier preparation method which has a relatively high treatment effect on oils and suspended matters and the purifier thereby. The method comprises the following step: obtaining a quaternary ammonium salt polymer (namely the sewage purifier) by ring opening polymerization of epoxy chloropropane and quaternization of chlorinated polyether. The purifier prepared by the method can be used for effectively removing sump oil and suspended matters out of sewage. The oil removal rate is over 90%, the suspended matter removal rate is over 80%, and the water purification effect is very remarkable.