313 results about "Emulsified oil" patented technology

The invention discloses sewage treatment equipment and method for oil field thickened oil produced water. The equipment comprises pretreatment equipment, main body equipment, dissolved gas supply equipment and a water outlet pump. Main body equipment comprises barrel equipment, and a flotation cyclone used for achieving the functions of dissolved air flotation and cyclone separation at the same time, separating out large-particle suspended solids through centrifugal force difference and achieving floating of oil drops through microbubble adsorption surfaces is sequentially arranged on the inner portion of the barrel equipment from top to bottom. The coalescence filler layer is made of oleophylic and hydrophobic core-shell structure fibers, and emulsified oil is promoted to polymerize and break emulsion through surface energy difference; and the inclined plate sedimentation device adopts an inclined tube labyrinth surrounding structure, performs deep sedimentation by utilizing a laminar flow principle, and further removes oil drops formed after coalescence.

The invention discloses a surface treatment process of a hydraulic rod and a coating monitoring system, relates to the technical field of electroplating, and aims to solve the problems that various complementary sensing technologies cannot be integrated, information such as thickness, uniformity and microstructure cannot be synchronously acquired in a lossless, in-situ and real-time manner, and closed-loop control cannot be formed based on the information in the background technology. According to the scheme, the method comprises the steps that PR electrolytic degreasing is conducted, a workpiece serves as an anode, an oil film is torn through the oxygen evolution effect, an extremely-thin oxidation film possibly existing on the surface of the workpiece is dissolved, base metal is completely activated, and an optimal combination basis is provided for a follow-up coating; and washing with hot water, namely removing residual alkaline degreasing fluid and emulsified oil stains by using hot water with the temperature higher than 60 DEG C in a stirring and spraying manner. According to the method, multi-dimensional information such as the thickness, the uniformity and the microstructure can be synchronously obtained in a lossless, in-situ and real-time mode in the surface treatment process, closed-loop control is formed based on the information, and it is ensured that plating growth is always located on the optimal track.

The invention belongs to the technical field of emulsified oil recovery, and particularly relates to a method for recovering emulsified oil generated by preparing an alumina carrier through an oil column forming process. The emulsified oil recovery method comprises the following steps: adding ammonia water into emulsified oil, stirring, preserving heat, centrifuging, collecting upper-layer floating oil A, and removing bottom-layer water and impurities to obtain a first-stage emulsion; adding ammonia water into the primary emulsion, heating by using a heat source until the temperature is higher than 100 DEG C, then stopping heating to obtain a demulsified primary emulsion system, carrying out centrifugal treatment, collecting upper-layer floating oil B, removing bottom-layer water and impurities, and remaining a secondary emulsion; combining the collected upper-layer floating oil A and the collected upper-layer floating oil B, distilling and removing water to obtain an oil body A; carrying out vacuum distillation on the secondary emulsion to remove water, and centrifuging to remove impurities at the bottom layer to obtain an oil body B; and finally, combining the oil body A and the oil body B to obtain recovered oil. The method does not need to add organic auxiliaries such as a demulsifier, the recovery process is simple and easy to control, the treatment temperature is low, the recovered oil quality is good, and the recovery rate is high.

The invention belongs to the technical field of recycling of oily wastewater in water treatment, and provides a high-oil-content emulsified wastewater treatment process based on electrochemistry. Oil-containing wastewater enters the pretreatment unit, oil slick and suspended substances in water are removed through the pretreatment processes of filtration, air floatation, pH adjustment and the like, and the pH is adjusted to a proper range; the reacted oily wastewater enters an electrochemical device, and proper voltage is applied to an electrode, so that emulsified oil in the water is destabilized, and the purpose of demulsification is achieved; the oily wastewater enters an oil-water separation device, demulsified oil drops are coalesced, grow and float upwards, and recoverable oil is obtained on the upper layer of the device; after long-time operation, the water enters the regeneration unit, so that the electrochemical demulsification unit recovers good demulsification and oil removal effects. According to the invention, the treatment of various high-oil-content emulsified wastewater and the recovery of oil can be realized by regulating and controlling the voltage, and the method is suitable for electro-desalting wastewater, machining wastewater, cold rolling wastewater and the like.

The invention belongs to the technical field of emergency water treatment, and particularly relates to an oily sewage treatment system based on intelligent regulation and control and an operation method. The system comprises an intelligent regulation and control server, a preprocessing unit, a separation unit, an online detection unit and a regulation and control unit, the intelligent regulation and control server is internally provided with a pretreatment module, a separation module, an online detection module, a data analysis module and a real-time regulation and control module, and the separation module provides a T-shaped pipe and air floatation pipe technology and is used for separating floating oil and emulsified oil. The intelligent regulation and control server is connected with all the units, before operation, calculation formulas of floating oil separation efficiency and emulsified oil separation efficiency are input into the intelligent regulation and control server in advance, and initial values of all parameters are set; during operation, data are transmitted in real time so as to calculate the floating oil separation efficiency and the emulsified oil separation efficiency, the data are stored, and parameters are adjusted in real time according to the optimal separation efficiency. According to different working conditions, automatic adjustment can be achieved, intelligent regulation and control are achieved, and the application range is wider.

According to the water-in-oil type glossy lip cosmetic and the preparation method thereof disclosed by the invention, a water-in-oil emulsification technology can be successfully integrated into a traditional lip gloss / lip glaze system by using a high-gloss grease composition with a specific formula, an emulsification composition with a specific ratio and a film-forming composition with specific viscosity and a specific ratio, so that a synergistic interaction effect is achieved; while the high oil phase content is ensured to realize high glossiness like that of a whole oil system, the stability problem of high-content difficult-to-emulsify grease and a water phase is solved by utilizing the emulsifying composition; through synergistic film formation of the film-forming composition and the high-content phenyl silicone oil, the interference of water to the film-forming property is effectively resisted, so that the non-stick-to-cup effect is comparable and even superior to that of a whole-oil formula, meanwhile, the water-feeling moisturizing advantage of an oil-in-water system is achieved, and the obtained water-in-oil system cosmetic has excellent stability and non-stick-to-cup performance.

The present invention belongs to the technical field of oils for hydraulic supports and provides a biodegradable natural plant-extracted emulsified oil for hydraulic supports and a preparation method thereof. First, through multi-step chemical modification of palm oil, including epoxidation, boronation, phosphating, and block polymerization, the epoxidation reaction introduces epoxy groups, increasing the reactivity of the oil; the boronation and phosphating reactions further enhance the polarity of the oil and its ability to form a lubricating film; and through block polymerization with caprolactone, the stability and wear resistance of the lubricating film are enhanced. Second, through carboxymethylation of chitosan, the carboxyl groups in the carboxymethyl chitosan react with oxides on the metal surface to form a chemical passivation protective film; and the sulfonic acid groups in the sodium lignosulfonate bind to the metal surface through electrostatic adsorption, further forming a protective layer. The synergistic effect of the two forms a multi-layer dense protective film on the metal surface, significantly improving the anti-corrosion performance of the emulsified oil.

The invention discloses a water pollution treatment device and method for a water supply pump station, and the device comprises an oil scraping plate which is arranged below an oil skimming rod, keeps synchronous rotation with the oil skimming rod, and is used for pushing scum and sump oil on the surface of sewage in a sedimentation tank; the oil skimming part is arranged in the sedimentation tank, rubs the oil scraping plate in the rotating state and is used for collecting scum and dirty oil on the surface of the sewage and discharging the scum and the dirty oil out of the sedimentation tank; the vibration assembly is arranged in the oil scraping plate and is used for driving a plurality of vibration rods to vibrate so as to crush and gather emulsified oil particles in the sewage; the gathering assembly is arranged above the oil scraping plate and is used for generating air flow, blowing the surface of the sewage by utilizing wind power, and driving the scum and the sump oil to gather towards the center direction of the oil scraping plate. According to the invention, the technology spanning from only oil slick treatment to emulsified oil treatment is realized, the oil content in the effluent is obviously reduced, and the efficiency of the subsequent treatment unit and the final water supply quality are improved.

The invention discloses a machine tool cutting fluid multistage purification intelligent treatment method and system, and relates to the technical field of cutting fluid multistage purification. Five types of pollution parameters including optical ambiguity Bg, viscoelastic loss factor Bn, redox residual energy Bh, peculiar smell release frequency Bw, emulsified oil cluster density Br and the like are obtained by deploying multiple types of sensors; the system can master the pollution state of the cutting fluid in real time, and the problems that the precision is low and the misjudgment rate is high due to the fact that the pollution degree is judged only through single-point monitoring are solved. The main pollution change rate F1, the main change acceleration F2 and the chronic accumulation state indication F3 are integrated into a unified index, so that the system not only can identify the current pollution degree, but also can perceive the pollution change trend in advance, and the prospective adjustment capability of the system is remarkably improved. The system does not adopt fixed parameters to control the purification frequency any more, but automatically judges the current purification level by dynamically calculating the pollution threshold value and comparing the evolution index in real time, so that the resource utilization rate is effectively improved.

The present application belongs to the technical field of hydrogen engine, and particularly relates to an emulsified machine oil demulsification device and method for hydrogen engine, which can be used for solving the problem of emulsified machine oil of hydrogen engine in cold start or low temperature environment. The device comprises a vortex tube system, an emulsified machine oil heating system, an oil-gas separation system and a double-oil tank interaction system. The vortex tube system is communicated with the engine exhaust pipe to deliver exhaust heat to the emulsified machine oil heating system, and phase change material is used to realize constant temperature heating of the emulsified machine oil. Under the joint action of constant high temperature and demulsifier, efficient demulsification of the emulsified machine oil is realized. At the same time, the cold gas output by the vortex tube system is beneficial to the liquefaction and discharge of the separated water vapor. The double-oil tank interaction system can separate the emulsified machine oil and non-emulsified oil, so that the machine oil passing through the hydrogen engine oil pump is non-emulsified oil, and the normal lubrication of the hydrogen engine is ensured. The energy of the whole system comes from the engine exhaust energy, without additional energy, which conforms to the idea of energy saving and emission reduction.

The invention provides a hydrogel hydrophilic modified gradient pore oil-water separation membrane as well as a preparation method and application thereof, and belongs to the technical field of separation membranes. The hydrogel hydrophilic modified gradient pore oil-water separation membrane comprises a base membrane with a porous structure and a hydrogel layer coated on a porous structure framework of the base membrane, and a gradient pore structure with a small pore diameter on one side and a large pore diameter on the other side is formed. The hydrogel hydrophilic modified gradient pore oil-water separation membrane prepared by the method has a super-hydrophilic and super-oleophobic surface and has excellent anti-fouling performance and oil interception performance, the gradually expanded pore diameter can provide large oil-water separation flux, emulsified oil with surface activity can be effectively treated, and the oil-water separation membrane has the advantages of high oil-water separation efficiency, high oil-water separation efficiency and the like. And excellent pollution resistance is maintained under different environmental conditions, and long-term stable operation is realized.

The invention belongs to the technical field of functional material preparation, and particularly discloses a preparation method and application of magnetic super-hydrophobic graphene aerogel based on a biomass template. Loofah sponge fibers are used as a three-dimensional skeleton, and three-component molecular-level coupling of Fe < 3 + > / Cu < 2 + > ions, graphene oxide and a biological template is realized through a pH-regulated electrostatic co-assembly technology; performing solvothermal reaction at 180 DEG C to synchronously complete crystallization growth of hollow CuFe2O4 nanospheres and in-situ reduction of graphene, and finally performing freeze drying to obtain the super-hydrophobic aerogel with a hierarchical porous structure. The specific surface area is increased by 17.5 times compared with that of aerogel prepared by a traditional hydrothermal method; the super-hydrophobic / super-oleophylic characteristic is realized through the surface energy gradient design; an embedded superparamagnetic unit realizes external field driven recovery, and the adsorption retention rate gt is obtained after 20 times of circulation; 92%. The product can efficiently treat emulsified oil wastewater containing a surfactant, and is especially suitable for rapid treatment of metallurgical rolling waste liquid and marine oil spill accidents.

The invention relates to the technical field of washing water treatment, and discloses a gradient type oil-solid and water pure physical separation system and method for MTO washing water.The separation system comprises a liquid inlet pipe, a liquid inlet valve and a liquid inlet pump are installed on the liquid inlet pipe, and a secondary deslagging system, a secondary oil-water separation system and a buffer water storage tank are sequentially connected to the liquid inlet pipe in the liquid inlet direction; a liquid level sensor and a backwashing system are mounted on the buffer water storage tank; the backwashing system is sequentially communicated with the secondary deslagging system and the secondary oil-water separation system; a buffer flow guide mechanism is installed at the liquid inlet end of the second-stage deslagging system, and a stepped filler assembly is installed in the second-stage deslagging system. A physical gradient separation process is adopted, step-by-step accurate removal from macroscopic particles to microscopic emulsified oil and efficient recovery of oil phase components in wastewater can be realized, the turbidity and solid content indexes of effluent are remarkably improved, and long-period continuous stable operation can be realized.

The invention relates to the technical field of industrial wastewater treatment, and discloses a treatment method for grinding fluid wastewater of a grinder, which comprises the following steps: pretreatment and demulsification, multi-stage chemical purification, biochemical deep treatment, deep purification and recycling, and sludge treatment. A specific supported heterogeneous catalyst is adopted in the multi-stage chemical purification step, nano zero-valent iron and copper oxide composite active components constructed on the surface of the catalyst can enhance the generation efficiency and stability of free radicals in the advanced oxidation process, and a composite coagulant with an optimized ratio in the coagulating sedimentation step is cooperated, so that the purification efficiency of the high-grade oxidation process is improved. An efficient continuous removal system for heavy metal ions and refractory organic pollutants is formed; meanwhile, in the pretreatment step, the demulsifier is composed of specific components, through the synergistic effect of all the components, rapid demulsification of the emulsified oil phase in the grinding fluid wastewater is achieved, favorable conditions are created for subsequent deep treatment, and therefore the purification efficiency and operation stability of the technology are overall improved.

The invention discloses an oil field oil-containing wastewater treatment process, and relates to the technical field of oil field oil-containing wastewater treatment, and the oil field oil-containing wastewater treatment process comprises the following steps: obtaining water quality parameters of oil field oil-containing wastewater, and determining the adding types and dosages of an oil removing agent and a silicon removing agent according to the water quality parameters; introducing the oil-containing wastewater of the oil field, the determined oil removing agent and the determined silicon removing agent into a micro-scale enhanced reactor, and carrying out a mixed reaction to obtain a demulsified and flocculated primary treatment solution; the primary treatment liquid is guided into a micro-nano bubble generation device, micro-nano bubbles are generated and make full contact with the primary treatment liquid, and residual emulsified oil drops are attached to the surfaces of the bubbles; the gas-liquid mixture carrying the oil drops is guided into a shallow layer inclined plate air flotation area for oil-water separation, and air flotation clear liquid is obtained; introducing the air flotation clear liquid into a self-cleaning surface filter, and carrying out deep filtration by using a gradient hydrophilic-oleophobic composite filter membrane with the pore diameter of 0.1 micron to obtain filtered produced water; and carrying out backwashing on the self-cleaning surface filter by adopting filtered produced water, and completing the deslagging operation.

The purpose of the present disclosure is to provide a frozen foamable oil-in-water emulsified oil / fat composition having excellent whipping properties after thawing and capable of providing smooth whipped cream with cool feeling.　This frozen foamable oil-in-water emulsified oil / fat composition contains sorbitan monostearate and an emulsifier (A) having a HLB of 7-17 inclusive, and the content of the sorbitan monostearate is 0.1-0.5 wt% in the entire frozen foamable oil-in-water emulsified oil / fat composition.

The application provides a process and device for synchronous extraction and recovery of multi-form oil in petrochemical wastewater, which extracts multi-form oil pollutants in oil-containing wastewater by using light distillates or benzene series produced in petrochemical or coal chemical industry as extractant, and develops a process and device for normal phase extraction and reverse phase extraction, wherein the normal phase extractor comprises a jet dispersion unit and a turbulent mixing unit, the reverse phase extraction separator comprises a double droplet dispersion unit and a synergistic separation unit, the double droplets are used to strengthen the extraction of micro-emulsified oil droplets and dissolved oil in wastewater, micro-fine extractant droplets are released through the oil-water interface, and the droplets are efficiently phase-separated through a multi-medium coalescing bed. Meanwhile, the extractant can be recycled and reused, and the oil pollutants in the oil-containing wastewater are recycled by the physical method. The process flow is simple, and the extractant does not need to be purchased from outside, and the mass transfer effect and separation effect between phases are simultaneously strengthened, and the extraction and separation of multi-form oil pollutants have the dual functions of oil pollutant recovery and wastewater detoxification.

The invention relates to a coalescence fiber with a special-shaped section and an air flotation device applying the coalescence fiber, the coalescence fiber is formed by weaving hydrophilic and oleophobic fibers and oleophylic and hydrophobic fibers, the section of the oleophylic and hydrophobic fibers is a special-shaped section, and the special-shaped section is one of a triangle, a cross shape, a groove shape and a circular arc shape. By weaving the hydrophilic and oleophobic fibers and the oleophylic and hydrophobic fibers and adopting a special-shaped section (triangular, crossed, groove-shaped or arc-shaped) design, the specific surface area and the surface roughness of the fibers are remarkably increased, and the adsorption and collision coalescence capability of the fibers on tiny oil drops is enhanced; a fine groove or hole structure formed by the special-shaped section is beneficial to generating a wicking effect and a differential capillary effect, and rapid coalescence and separation of emulsified oil drops are promoted, so that the oil-water separation efficiency is improved.

The invention discloses a warp-wise elastic tatting antibacterial fabric and a preparation method thereof, and belongs to the technical field of antibacterial fabric preparation. The preparation method of the warp-wise elastic tatting antibacterial fabric comprises the following steps: step 1, adding composite polyester particles into a mixed solution of N, N-dimethylformamide and acetone, heating and stirring, adding a modified antibacterial agent, and carrying out electrostatic spinning treatment, drying, hot pressing and cutting to obtain composite polyester staple fibers; 2, wool is treated to obtain pretreated wool, the pretreated wool is mixed with composite polyester staple fibers, an antistatic agent and emulsified oil are added, opening mixing, carding, drawing and roving processing are carried out, and mixed roving yarn is obtained; 3, spandex yarn serves as core yarn, the core yarn is wrapped with the pretreated wool, elastic wrap yarn is formed, the elastic wrap yarn and the mixed coarse yarn are mixed, spinning, weaving and heat setting are conducted, and the warp-wise elastic tatting antibacterial fabric is obtained. The fabric prepared by the method has excellent antibacterial property and mechanical property.

The invention belongs to the technical field of oil for hydraulic supports, and particularly relates to biodegradable emulsified oil for a hydraulic support and a preparation method of the biodegradable emulsified oil. The biodegradable emulsified oil for the hydraulic support is prepared from the following raw materials in parts by mass: 40 to 50 parts of modified castor oil, 2 to 6 parts of eutectic solvent, 2 to 5 parts of emulsifier, 3 to 8 parts of antirust agent, 0.5 to 1.5 parts of defoaming agent and 15 to 30 parts of water, the biodegradable emulsified oil for the hydraulic support, provided by the invention, has good compatibility with 40-grade artificial hard water, and also has excellent anti-rust property and corrosion resistance.

The objective is to provide a method for producing a non-emulsified oil sauce in which the ingredients do not form clumps and the ingredients can be uniformly filled into a container. [Solution] An emulsified seasoning liquid is prepared by stirring a mixture containing a seasoning liquid and edible oils and fats. After filling a container with the emulsified seasoning liquid and ingredients, a heat treatment is performed to obtain a non-emulsified oil sauce that can be filled into a container uniformly without the ingredients clumping.

The application discloses a method and device for mixing an emulsified oil displacement agent and crude oil, wherein the device comprises a pressure collection system, first and second constant-speed constant-pressure pumps, first and second intermediate containers, an injection end valve, a four-way valve, a container with porous medium, a three-way valve, a production end valve, a thermostat and a liquid collection system; the first and second constant-speed constant-pressure pumps are connected with the first and second intermediate containers respectively to provide pumping power; four interfaces of the four-way valve are connected with the first and second intermediate containers, the pressure collection system and the injection end valve respectively; an injection end of the container with porous medium is connected with the injection end valve; three interfaces of the three-way valve are connected with a production end of the container with porous medium, the production end valve and the pressure collection system respectively; the liquid collection system is connected with the production end valve; and the container with porous medium is arranged in the thermostat. The application enriches the preparation method of crude oil emulsion, and more truly simulates the seepage conditions of the emulsified oil displacement agent in emulsifying crude oil in a porous medium of an oil reservoir.

The utility model relates to the technical field of oily sewage treatment, in particular to a skid-mounted air flotation rotational flow oily sewage treatment device which comprises a rack, a buffer skimming tank, a flotation rotational flow tank and a vapor-liquid mixing pump are mounted on the rack in a skid-mounted mode, and the buffer skimming tank is communicated with the flotation rotational flow tank through the vapor-liquid mixing pump. The flotation rotational flow tank comprises a cone structure composed of a cone outer wall and a cone inner wall, a rotational flow partition plate is connected between the cone outer wall and the cone inner wall to form a dissolved air and oily sewage mixed rotating area, and a liquid overflowing channel is formed among the cone outer wall, the cone inner wall and the rotational flow partition plate from top to bottom. The oil-water separator has the advantages of small bubble particles, long retention time and obvious separation effect, the treatment capacity of oil and suspended matters in water is not reduced to 95%, rotational flow can be realized to reach a 25G separation factor, and meanwhile, the retention time of microbubbles in oil-containing sewage and the mixing degree of the microbubbles and emulsified oil are increased, so that the oil-water separation efficiency is effectively improved.

The invention relates to the technical field of wastewater treatment, in particular to a concentrated solution production wastewater treatment system which comprises an oil separation tank. The plurality of floating oil separation mechanisms are mounted at the upper end of the oil separation tank at intervals along the length direction of the oil separation tank and are used for treating floating oil in the upper layer of the wastewater in the oil separation tank; at least one free oil adsorption mechanism, and the free oil adsorption mechanism is arranged in an area between two adjacent floating oil separation mechanisms in the oil separation tank and is used for treating free oil in the wastewater in the oil separation tank; and the coagulation and air floatation mechanism is used for treating emulsified oil and COD (Chemical Oxygen Demand) in the wastewater which flows out of the oil separation tank after being treated by the floating oil separation mechanism and the free oil adsorption mechanism. When the system is applied in practical application, effective pretreatment of the concentrated solution wastewater can be realized, so that the load of a subsequent biochemical treatment system and a deep treatment system is reduced, and finally, different pollutants in the wastewater are completely removed.

This invention discloses a method for producing alcohol-based suspensions for produced water, comprising multiple steps including selecting alcohol-based solvents, adding dispersing agents, adding functional solid particles, precisely adjusting the pH value of the system, thorough mixing and homogenization, and filtration and purification. The alcohol-based suspension produced by this invention has uniformly dispersed internal solid particles and a large specific surface area, exhibiting extremely strong adsorption and capture capabilities. It can rapidly adsorb fine suspended particles, emulsified oils, organic impurities, and other pollutants in produced water, showing significant treatment effects on produced water with high solids content and high oil content. The removal rate of suspended solids can reach over 90%, and the removal rate of oil pollutants can reach over 85%, far superior to traditional flocculation and sedimentation processes. The treated water quality can meet discharge standards or be reused.

The present application relates to a kind of coal slime collector preparation method using kitchen waste oil, comprising the kitchen waste oil after being pretreated with water, emulsifier is mixed, as carbon source configuration first culture medium, Bacillus and Rhodococcus species are inoculated in it and carry out aerobic fermentation, obtain refined oil, and as carbon source configuration second culture medium, Candida species are inoculated in it and carry out aerobic fermentation, obtain mixed fatty acid, and as carbon source configuration third culture medium, Yarrowia species are inoculated in it and carry out micro-aerobic fermentation, obtain alkane mixture;Emulsified oil and / or refined oil are as carbon source configuration fourth culture medium, Pseudomonas species are inoculated in it and carry out aerobic fermentation, obtain rhamnolipid;Alkane mixture is mixed with rhamnolipid, obtain coal slime collector.The present application develops a new type of green, good coal slime collector by constructing multistage series biological transformation process.

The application provides a coalescence-adsorption coupled binary hydrophilic-hydrophobic particle deep bed oil removal process and device, and the process comprises the following steps: S1, mixed liquid mixing and adsorption; S2, first coalescence separation of the mixed liquid; S3, second coalescence separation of the mixed liquid; and S4, recycling of emulsified oil containing DOM and adsorbent. The process of the application realizes efficient purification of oil-containing sewage containing DOM and emulsified oil through the steps of adsorbent dispersion mixing and two-stage binary hydrophilic-hydrophobic particle coalescence separation, in combination with a special device; the mixing effect of the adsorbent and the sewage can be strengthened, the DOM adsorption and emulsified oil demulsification efficiency can be improved, the adsorbent recycling and water phase purification can be realized at the same time, and the problems of incomplete treatment and low efficiency of existing oil removal technologies on multi-form pollutants are solved.

The invention relates to the technical field of membrane separation, and discloses a polyethersulfone tubular membrane for anaerobic oily wastewater as well as a preparation method and application of the polyethersulfone tubular membrane. The preparation method comprises the following steps: blending ethylene-vinyl acetate, polyethylene glycol and a phosphate betaine type surfactant in a polyether sulfone membrane casting solution through a phase inversion method, and preparing the membrane through the steps of solution preparation, defoaming treatment, coating and molding, curing, post-treatment and the like. A material system and process parameters are optimized, the hydrophilicity, oil repellency and pollution resistance of the membrane are remarkably improved, and the membrane is suitable for treatment scenes of anaerobic wastewater containing emulsified oil and dissolved oil.