426 results about "Oily wastewater" patented technology

The invention provides an oily water treatment equipment control method based on the Internet of Things, which comprises the following steps: feeding back data through an operation state, calling a multi-dimensional data analysis module, carrying out association calculation on energy consumption, treatment efficiency and adjustment parameters, predicting a subsequent operation trend by adopting a support vector machine algorithm, and obtaining a feasibility evaluation result of energy-saving mode switching; if the feasibility evaluation result of the energy-saving mode switching shows that the energy consumption optimization space is relatively large, starting an energy-saving mode switching module, reducing the power output of a non-key processing unit, maintaining the core separation efficiency, and determining new energy consumption balance point data; and through equipment state updating information, continuously monitoring an operation cost control module, comparing cleaned energy consumption data with historical records, calculating a cost saving range, and judging a potential improvement space for prolonging the service life of the equipment.

The invention discloses a composite polyacrylamide flocculant based on a nano core-shell structure as well as a preparation method and application of the composite polyacrylamide flocculant. The composite polyacrylamide flocculant is a core-shell structure composite material which takes inorganic nanoparticles grafted with carbon-carbon double bonds on the surface as a core and takes a polyacrylamide copolymer as a shell; the polyacrylamide copolymer is prepared from the following components in parts by mass: 70 to 90 parts of acrylamide, 10 to 30 parts of functional monomer and 0.1 to 1.0 part of cross-linking agent. The basic conception of the flocculating agent provided by the invention is that the structural design of inorganic nano core-organic polymer shell is adopted, PAM molecular chains firmly grow on the surfaces of nano particles in a chemical grafting manner, high dispersion and functional synergy of nano units are realized, and the obtained product has the characteristics of high flocculation speed, dense floc, high removal efficiency and the like, and has a wide application prospect. The method is especially suitable for deep treatment of difficult-to-treat industrial wastewater such as oil-containing wastewater, dye wastewater and heavy metal wastewater.

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 relates to the technical field of environmental protection equipment, and particularly discloses a continuous water-oil separation device which comprises a gravity separation tank and a pretreatment mechanism, a separation mechanism is mounted in the middle of the bottom end of the gravity separation tank, and a collection mechanism is jointly mounted between the lower part of the outer wall of the gravity separation tank and the middle of the bottom end of the separation mechanism; the separation mechanism comprises a centrifugal separation tank, an oil conveying pipe, an oil collecting hopper, a limiting ring, an adjusting tooth block and a hydrophilic oleophobic film; the oil conveying pipe is mounted at the top end of the centrifugal separation tank through a bearing; according to the oil-water separation device, oil-containing wastewater is subjected to gravity separation through the gravity separation tank, oil and water are subjected to centrifugal separation through the rotary centrifugal separation tank, and efficient oil-water separation can be achieved through the hydrophilic oleophobic film, so that the oil-water separation effect is further improved, and water and oil can be continuously and efficiently separated by adopting the separation device; the oil-water separation efficiency during treatment of a large amount of water-oil mixture is improved, and the requirements of modern industry on continuous, efficient and rapid oil-water separation can be met.

The application relates to a modified separation membrane in the technical field of membrane materials, a preparation method and application thereof. The modified separation membrane comprises a base film and a nanostructure layer on the upper surface of the base film and the membrane hole surface close to one side of the upper surface of the base film; wherein the pore size of the base film is 120-400 mu m; the nanostructure layer is composed of microparticles with a size of 100-1000 nm; the preparation method comprises 3D printing of the separation membrane; and the upper surface of the separation membrane and the membrane hole surface close to one side of the upper surface of the separation membrane are subjected to plasma treatment. The modified separation membrane preparation method combines the 3D printing technology and the membrane separation technology, improves the traditional membrane preparation process, finds a more optimal membrane replacement process, and the modification method is free of chemical agents, has the advantages of being more convenient and fast to operate, high in separation efficiency, low in processing cost, green and pollution-free, and the like, and has important significance in the aspects of membrane separation technology improvement and application of oily wastewater treatment.

The invention relates to the technical field of oily sewage treatment, in particular to an oily sewage oil-water separation tank which comprises a tank body and an oil-water separator arranged in the tank body. The pool body is sequentially provided with a liquid inlet tank, a liquid separation tank, an overflow tank and a water storage tank in the water flow direction, the oil-water separator is arranged between the liquid inlet tank and the liquid separation tank, and the interior of the oil-water separator is composed of a plurality of partition plates to form a continuous flow channel. The oil-water separator sequentially comprises a horizontal separation section, a torsion reversing section and a vertical layering section, and a partition plate is arranged to be in a horizontal, inclined or vertical state in different sections according to structural requirements, so that oil drops are guided to gradually gather and float upwards, and effective oil-water separation is realized. The structure is compact, the separation efficiency is improved by utilizing the geometric design of the flow channel, the liquid flow direction is improved, and the liquid flow speed in the flow channel is improved. The oil-containing wastewater pretreatment or recycling system is suitable for industrial and environmental protection fields.

The invention relates to the technical field of wastewater treatment, and discloses a treating agent for oily wastewater, a treating device and a treating method.The treating agent comprises the following steps that S1, the oily wastewater enters the treating device firstly, S2, the wastewater is lifted to a reaction tank through a pump, S3, the wastewater added with the agent enters an air flotation system, and S4, the wastewater enters the air flotation system. S4, enabling the clear liquid to enter a subsequent sedimentation tank or a filtering system under the control of the digital twinborn model, and judging whether an auxiliary flocculation or filtering step needs to be added or not by the AI system according to a simulation result of the twinborn model in combination with equipment operation parameters and real-time water quality data; s5, part of the wastewater enters an online water quality deep analysis module, and residual indexes are monitored. The self-adaptive AI control system is combined with a decision tree algorithm to analyze historical water quality data and recommend a treatment agent, so that a treatment strategy is automatically adjusted according to real-time water quality change in a wastewater treatment process, and an accurate and efficient wastewater treatment effect is obtained.

The invention relates to the technical field of oil-water separation, in particular to a renewable oil-water separation material as well as a preparation method and application thereof. According to the preparation method, a melamine foam material is soaked in a mixed solution composed of cane sugar, dopamine and a trihydroxymethyl aminomethane-hydrochloric acid buffer solution, and the renewable oil-water separation material is obtained; the renewable oil-water separation material can quickly and efficiently separate different types of oily wastewater such as kitchen oil, industrial oil and organic solvents, the separation efficiency can reach 99% or above, and the separation flux can reach 104-105 liters per square meter per hour. Moreover, the used renewable oil-water separation material can be repeatedly used after being fully soaked in an ethanol solution, and the separation flux and the separation efficiency are not obviously reduced. In addition, the renewable oil-water separation material has a wide oil-water separation effect and is suitable for industrial production.

The invention discloses wastewater oil-water separation equipment based on rubber recovery, and relates to the technical field of wastewater treatment.The wastewater oil-water separation equipment comprises a wastewater pool, an oil-water separation mechanism, an oil absorption mechanism and a synchronizing mechanism, a wastewater pipe is arranged at the bottom end of the side wall of the wastewater pool, and the oil-water separation mechanism comprises an oil-water separation box; the oil-water separation tank is arranged on one side of the wastewater pool and located below the wastewater pipe, and a drainage pipe is arranged at the bottom end of the side, away from the wastewater pool, of the oil-water separation tank. Oil-water separation treatment is conducted on oily wastewater guided into the oil-water separation tank through the first filter layer and the second filter layer, oil layers attached to the bottom end of the first filter layer and the surface of the second filter layer are adsorbed through the oil suction head, so that the first filter layer and the second filter layer can keep the filtering capacity, oil removal treatment is conducted regularly, and the oil removal efficiency is improved. The oil-water separation capability of the first filter layer and the second filter layer is maintained, the replacement frequency of the filter layers is reduced, and the treatment efficiency of oily wastewater is improved.

The invention relates to the technical field of separation of oil-containing wastewater, and particularly discloses a nano separation membrane material for separating oil-containing wastewater as well as a preparation method and application of the nano separation membrane material aiming at the problems of limited oil-water separation flux, poor anti-pollution performance and the like of a separation membrane material for treating the oil-containing wastewater at present. The nano separation membrane material comprises a nano base membrane and polydopamine (at) ZnIn2S4-CuS anchored on the surface of the nano base membrane, and the polydopamine (at) ZnIn2S4-CuS is a gear-shaped ZnIn2S4-CuS heterojunction material bridged with dopamine. According to the nano separation membrane material, through the gear-shaped ZnIn2S4-CuS heterojunction, the ultrahigh oil-water separation flux is achieved, the photocatalysis-photothermal conversion performance is achieved through the synergistic effect of ZnIn2S4-CuS and the polydopamine layer, and a feasible separation membrane material is provided for efficient separation treatment of complex emulsified oily wastewater; and meanwhile, the synergistic effect of gear-shaped CuS and ZnIn2S4 is utilized to promote efficient transfer of photo-induced electrons, generate abundant active substances, quickly degrade organic pollutants in the oily wastewater and play an anti-pollution role.

The invention discloses a treatment device for oil-containing emulsified wastewater, and belongs to the technical field of wastewater treatment.The device comprises a microbubble production module and a flotation module.The main body of the microbubble production module is a microbubble production tank, and the outer side of the microbubble production tank is fixedly connected with a rotational flow-venturi type microbubble generator; the rotational flow-venturi type microbubble generator is connected with the net-shaped turbulent flow structure and arranged on the inner side of the microbubble production groove, an opening is formed in the upper portion of the flotation groove, a hydrophobic film is arranged, and an oil collecting groove is fixedly connected to the hydrophobic film. The device can circularly treat the emulsified oil-containing wastewater, achieves the effects of improving the emulsified oil-containing wastewater treatment efficiency and the oil recovery rate, is convenient to operate, and is energy-saving and environment-friendly.

The invention belongs to the technical field of separation membrane materials, and discloses a graphene oxide modified hollow fiber membrane for oily wastewater treatment and a preparation method of the graphene oxide modified hollow fiber membrane. Firstly, a hollow fiber base membrane is prepared through a phase inversion method; then performing oxygen plasma pretreatment to activate the surface; immersing the activated base membrane into a Tris-HCl buffer solution of dopamine and polyethyleneimine, and forming a polydopamine intermediate layer on the surface of the membrane through auto-polymerization of dopamine; and finally, firmly loading the graphene oxide nanosheets on the surface of the base membrane by using the intermediate layer to form a graphene oxide functional surface layer, and carrying out vacuum drying to obtain a final product. A three-layer gradient structure of'base membrane-polydopamine middle layer-graphene oxide surface layer 'is constructed, the hydrophilicity of graphene oxide is utilized to form a water membrane on the surface of the membrane, oil drops are repelled, the anti-pollution performance of the membrane is improved, the problem that the coating is easy to fall off is solved by means of the adhesion of polydopamine, and the preparation process is simple and controllable and is suitable for large-scale production.

The invention discloses a tough underwater superoleophobic gel composite coating and a preparation method thereof.The preparation method specifically comprises the following steps that 1, a base material is soaked in a mixed solution of tannic acid and 3-aminopropyltriethoxysilane, after a period of time, the base material is taken out and soaked in a ferric chloride solution, and a nano-particle modified filter screen is obtained after drying; (2) loading the gel precursor solution on a nanoparticle modified filter screen through a dip-coating method, and preparing a gel composite filter screen under ultraviolet initiation; and (3) soaking the gel composite filter screen in a sodium citrate aqueous solution, and taking out the gel composite filter screen to obtain the tough underwater super-oleophobic gel composite coating modified fishing net. According to the method, the tough underwater super-oleophobic gel composite coating modified fishing net is prepared by adopting an impregnation method and ultraviolet initiation, the preparation process is simple, and the prepared gel composite coating has excellent oil stain resistance, mechanical stability and chemical stability and can be applied to crude oil adhesion prevention and oil-water separation of industrial oily wastewater.

The invention discloses a hydrophilic oleophobic filter material as well as a preparation method and application thereof. The hydrophilic and oleophobic filter material is surface aminated hard particles grafted with polybasic acid, and the hydrophilicity of the hard particles is remarkably improved through amino-carboxylation; on the basis of a silanization reaction, a stable Si-O-Si covalent bond network is formed, an amino functional group is anchored, and further through an amidation reaction, a carboxylic acid group of polycarboxylic acid is directionally introduced into the surface to form a dense strong-polarity modification layer, so that the hydrophilic oleophobic filter material has high stability, long-acting property and excellent underwater oil stain resistance; the hydrophilic and oleophobic filter material and the hydrophobic and oleophylic filter material can form a non-uniform wettability filter material, the hydrophilic particles construct a low-resistance water phase channel to reduce head loss, the hydrophobic particles are utilized to realize interface demulsification and oil drop coalescence, non-demulsified micro-drops are screened and adsorbed layer by layer through a multi-stage filter bed, deep oil-water separation is achieved, and oil-water separation is realized. And the method has strong adaptability to complex oily wastewater containing surfactants and high acid, alkali and salt properties.

The invention belongs to the technical field of chemical separation, and relates to a bionic on-demand emulsion separation membrane which is formed by compounding a normal beetle wettability fiber layer and an anti-beetle wettability fiber layer, and the two layers form a stable laminated structure through mechanical entanglement of fibers, the thickness of the normal beetle wettability fiber layer and the thickness of the anti-beetle wettability fiber layer are both 0.2-500 micrometers, and the thickness ratio of the normal beetle wettability fiber layer to the anti-beetle wettability fiber layer is 1: 0.2-5. The invention also discloses a preparation method of the bionic on-demand emulsion separation membrane. According to the invention, bionic design and asymmetric wettability technology are utilized to realize high-efficiency treatment of oil-containing wastewater. The method has the advantages that the separation effect is improved by a bionic synergistic demulsification mechanism; multiple types of emulsions are efficiently separated, energy consumption is low, and external stimulation is not needed; the bionic synergistic demulsification mechanism based on positive beetle wettability and anti-beetle wettability is achieved, the separation effect is remarkably improved, the advantage of performance integration is achieved, and efficient on-demand separation of water-in-oil emulsion and oil-in-water emulsion through a single membrane material is achieved.

The utility model relates to the technical field of oil-containing wastewater treatment, and discloses an oil-removing device for oil-containing wastewater treatment of an oil and gas field, which comprises a tank body, and a cleaning mechanism and an oil filtering mechanism are arranged in the tank body; the cleaning mechanism comprises a tank cover, a connecting frame and a feeding pipe are fixedly connected to the top of the tank cover, an electric push rod is fixedly connected to the interior of the connecting frame, a scraping plate is fixedly connected to the output end of the electric push rod, a feeding frame is fixedly connected to the top of the feeding pipe, and a filter screen is fixedly connected to the inner wall of the feeding frame. The oil filtering mechanism comprises a supporting ring, and an oil-water separation filter element is arranged at the top of the supporting ring; a discharge pipe is fixedly connected to the bottom of the tank body, and a first switch valve is mounted in the discharge pipe. According to the oil-removing device for oil-containing wastewater treatment of the oil and gas field, residual oil stains and impurities on the inner wall of the tank body are automatically cleaned, the labor intensity of operators is reduced, the cleaning effect is guaranteed, and secondary pollution is avoided.

This invention discloses a high-efficiency integrated treatment system for produced water from oilfields, comprising an oily wastewater settling filter and an oily wastewater filter coalescer connected in sequence. The oily wastewater settling filter includes a filter tank, a settling separation mechanism, and a paper tape filter mechanism. The settling separation mechanism is located in the upper part of the filter tank, and the paper tape filter mechanism is installed on the filter tank. The oily wastewater filter coalescer includes a shell and a filter coalescing cartridge assembly. The shell includes a cartridge installation section, an inlet distribution section, and a flotation separation section. The technical solution of this invention uses the oily wastewater settling filter as a pre-treatment device and the oily wastewater filter coalescer as a post-treatment device. The organic combination of the two improves the system's effectiveness (good effluent quality indicators and stable performance) while also enhancing its economy (low construction cost and low operating cost) and environmental performance (low energy consumption and low generation of secondary oily waste).

A membrane technology based on a wettability material has the problem of membrane pollution and cannot efficiently and stably separate and purify oil-containing wastewater, so that a preparation method of a hydrophilic membrane with excellent hydrophilicity and an open pore channel is urgently needed. The invention discloses an ultrahigh hydrophilic membrane for efficiently and stably separating an oil-in-water emulsion, which is characterized in that magnetic nanoparticles (Fe3O4 MNPs) are wrapped in membrane fibers through electrostatic spinning and an in-situ growth method, and a hydrophilic polyaniline rough micro-nanosphere structure grows on the surface of the membrane fibers. Under the action of a magnetic field, the magnetic particles obtain magnetism, the generated magnetic interaction force pulls the nanofiber to optimize the membrane structure, and hydrophilic groups are further exposed while membrane holes are supported. The flux of the prepared three-dimensional hydrophilic membrane for separating n-hexane-in-water emulsion under the action of a 0.2 T magnetic field is up to 8957.9 Lm <-2 > h <-1 >, and the efficiency is up to 99.87%. The membrane shows optimal separation performance in short-term and long-term cycle tests, and is expected to be applied to actual oily wastewater purification scenes.

The invention relates to the field of liquid-liquid separation, and discloses a coalescence material and a preparation method thereof, a coalescence filter element and a coalescence separator. The coalescence material comprises a substrate material, a polydopamine layer and a post-functionalized molecular layer, wherein the polydopamine layer and the post-functionalized molecular layer are sequentially deposited on the surface of the substrate material; the substrate material is polymer fiber; the post-functionalized molecule is a compound containing a primary amine group or a sulfydryl group, and is grafted on the surface of the polydopamine layer through Michael addition or Schiff base reaction; the coalescence material has oleophylic and hydrophobic characteristics, the contact angle between the coalescence material and water is larger than 145 degrees, and the contact angle between the coalescence material and oil is smaller than 5 degrees. When the coalescence material is applied to a coalescence filter element and a coalescence separator, the coalescence material is high in adaptability to oily wastewater, better in oil removal performance and higher in coalescence separation efficiency; particularly, when the material layer is formed by combining an intermediate material (a substrate material deposited with polydopamine and having hydrophilic and underwater oleophobic characteristics) and a coalescence material and has three-dimensional gradient wettability, the corresponding coalescence separator has optimal oil removal performance.

The invention relates to the technical field of polymer materials, and particularly discloses a three-dimensional raspberry-shaped CdS (at) MXene microsphere, a multi-pollution-resistant polyarylene ether nitrile membrane material containing the three-dimensional raspberry-shaped CdS (at) MXene microsphere, a preparation method and application of the three-dimensional raspberry-shaped CdS (at) MXene microsphere and the multi-pollution-resistant polyarylene ether nitrile membrane material aiming at the problem of dense stacking of adopted two-dimensional MXene lamellar material in the existing composite membrane material for oily wastewater treatment. The preparation method comprises the following steps: mixing a polymethyl methacrylate aqueous solution with an MXene suspension, carrying out a stirring reaction, and after the reaction is finished, carrying out separation, washing and drying to obtain three-dimensional MXene microspheres; and mixing the three-dimensional MXene microspheres with a CdCl2 aqueous solution, magnetically stirring, then adding thiourea, continuously stirring, placing at 160-200 DEG C, carrying out a hydrothermal reaction, and after the reaction is finished, separating, washing and drying to obtain the three-dimensional raspberry-shaped CdS-coated MXene microspheres. The three-dimensional raspberry-shaped CdS-coated MXene microspheres are introduced into a polyarylene ether nitrile membrane material, so that the problems of dense stacking and complex membrane pollution of the existing two-dimensional MXene sheet layer can be effectively solved, and the limitation of separation flux is broken through.

The invention relates to the technical field of oily wastewater treatment, and discloses a rotational flow dissolved air flotation degreaser which comprises a degreasing assembly and a tank body, a liquid inlet pipe and a liquid outlet pipe are fixed on the tank body, a water weir plate is fixed on the inner wall of the tank body, an oil collecting barrel is arranged on the inner side of the water weir plate, and an oil weir plate is arranged at the top of the oil collecting barrel; the adjusting assembly is arranged on the oil weir plate and comprises an adjusting piece, and the adjusting piece comprises a supporting rod fixed to the top of the oil collecting barrel. The oil tank has the beneficial effects that when an oil layer in the tank body is thickened, the height of the oil weir plate can be reduced through the adjusting assembly, so that the oil layer can quickly cross the oil weir plate to enter the oil collecting barrel without being accumulated to the original thickness, and further the situation that the oil layer is too thick and is brought into a purified water area by rotational flow, and the oil content of a purified water outlet exceeds the standard is avoided; the height of the oil weir plate can be increased through the adjusting assembly, so that a large amount of purified water is prevented from crossing the weir plate along with the thin oil layer and entering the oil collecting cylinder to obviously increase the water content of discharged oil.

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 utility model belongs to the technical field of wastewater treatment, and particularly relates to oily wastewater separation equipment which comprises an air floatation tank, a flocculation chamber is formed in the middle of the air floatation tank; a bubble contact chamber is formed in the middle of the air floatation tank; two gas dissolving pipes are mounted in the middle of the bubble contact chamber; a separation chamber is formed in the middle of the air floatation tank; a scum groove is formed in the middle of the air floatation tank; the scum tank is formed in one side far away from the flocculation chamber; the top of the air floatation tank is rotationally connected with a plurality of groups of slag scraping plates; the side wall of the air floatation tank is fixedly connected with a hot air pump; an exhaust pipe is fixedly connected to the middle of the hot air pump; the middle of the exhaust pipe penetrates through the side wall of the air floatation tank; the air floatation tank is fixedly connected to the side wall of the bubble contact chamber; a one-way valve is fixedly connected to the middle of the exhaust pipe; the one-way valve is fixedly connected to one end close to the hot air pump; by discharging the hot air flow into the air floatation tank, the situation that the generation speed and stability of bubbles in water are reduced due to the fact that the temperature of the water is low in the winter environment can be effectively reduced.

The invention belongs to the field of oily wastewater treatment, and discloses a preparation method and application of super-hydrophobic and super-oleophylic sponge with a photothermal effect, and the preparation method comprises the following steps: step 1, preparing lignin microspheres; and step 2, preparing the lignin microsphere and candle ash nanoparticle modified super-hydrophobic polyurethane sponge. The preparation cost of the super-hydrophobic polyurethane material is greatly reduced, the lignin serving as a byproduct of the papermaking industry is extremely low in cost, and the candle ash nanoparticles are pollutants generated after candle combustion, so that the preparation cost can be reduced, and the problem of environmental pollution can be solved at the same time; pDMS is introduced as an adhesive, so that the use of fluorine-containing substances can be replaced to reduce environmental pollution, and PDMS is also beneficial to improving the adsorption capacity of oil, and is beneficial to efficient adsorption and separation of viscous crude oil.

The invention discloses a device for removing oil by using an oleophylic and hydrophobic material and a regeneration method, belongs to the technical field of environmental protection equipment, and aims to solve the problems of poor removal effect, high operation cost, difficulty in regeneration, easiness in secondary pollution and the like in the existing wastewater oil removal technology. The device comprises an oil remover, an oleophylic and hydrophobic sponge, a special-shaped rubber pipe, a vacuum pump, a regenerated liquid storage tank, a purified wastewater storage tank and other core components, oil in wastewater is efficiently adsorbed through the oleophylic and hydrophobic sponge, and regeneration of an adsorption material is achieved in a vacuum compression mode; and the oil removal continuity can be guaranteed and the treatment effect can be improved through parallel connection or series connection combination of a plurality of oil removers. The device is simple in structure, low in operation cost and free of a heat source for regeneration, the oleophylic and hydrophobic sponge can be reused for more than 10000 times, and the device is suitable for treatment of various industrial oily wastewater and has remarkable environmental protection and economic benefits.

The utility model discloses a kind of oil removal and air flotation integrated water treatment equipment, including water treatment processor, water inlet pipeline and water outlet pipeline are respectively arranged at the both ends of water treatment processor;Two baffle plates are arranged in water treatment processor, further include: oil removal device and air flotation device, are arranged in the area between water inlet pipeline and the baffle plate close to water inlet pipeline, oil removal device is used to remove part of oiliness in water inlet substance;Air flotation device is used to produce bubble to make impurity in water inlet float out;Scraping residue device is arranged in the area between two baffle plates, for removing the float dregs generated by air flotation.The integrated water treatment equipment significantly improves the removal efficiency of oiliness in high oil content wastewater, overcomes its interference to air flotation process, solves the fundamental problem of low treatment efficiency of traditional air flotation process;At the same time, by efficient built-in oil removal mechanism, reduce or eliminate the dependence on excessive chemical agent, thereby solve the problem of large amount of chemical agent consumption caused by low efficiency of traditional air flotation process.

The present invention belongs to the technical field of sewage treatment, and specifically relates to a demulsifier for oily sewage treatment and its synthesis method and application. The synthesis method is as follows: tributylaminomethylsilane, potassium hydroxide, 4-chloro-1-butanol are added to the reactor, stirred at room temperature, heated, and kept warm for reaction; the above mixture is transferred to an autoclave, potassium hydroxide is added again, vacuumed, filled with nitrogen, repeated three times, then slowly heated, vacuumed, passed through propylene oxide, heated up, kept warm for reaction, when the pressure no longer changes, passed through ethylene oxide, heated up, kept warm for reaction, when the pressure no longer changes, the system is cooled to room temperature using circulating cooling water, adjusted, and a product demulsifier is obtained. The demulsifier of the present invention has the advantages of a wide source of raw materials, a simple synthesis process, and low-concentration and high-efficiency demulsification.

The utility model discloses an oily wastewater hydrocyclone separation integrated recovery device, which relates to the technical field of resource recovery, and comprises a base, the outer wall of the base is fixedly connected with a controller, and the outer wall of the top of the base is fixedly connected with a wastewater tank. When a threaded rod rotates, a U-shaped plate is driven to slide on a guide rod, then when the U-shaped plate moves, the U-shaped plate is inserted into a square groove to fix a filter plate, when the U-shaped plate moves, a sliding rod is pushed to move, then when the sliding rod moves, an extension spring is stretched, and when the sliding rod moves, the sliding rod is inserted into a circular groove to fix the filter plate. According to the oil waste water filtering device, rapid installation is achieved, tedious installation operation is not needed when the filtering plate is installed, the installation and fixing mode is more convenient, the working time is effectively shortened, then the filtering plate can be rapidly disassembled when replaced, and meanwhile impurities and scrap iron in oil waste water can be separated through the filtering plate.

This invention discloses a fully automated discharge and monitoring system for offshore liquefied natural gas (LNG) terminals, relating to the field of marine engineering technology. The system includes an oil-water separator, with an oily wastewater inlet at one end. Inside the separator, along the flow direction of the oily wastewater, interconnected components are installed: an inlet rectifier baffle, a corrugated plate assembly, a coalescing element, an oil collection tank, a weir, and a clear water tank. The oily wastewater undergoes oil-water separation via the corrugated plate assembly. The separated wastewater is further separated into clear water by the coalescing element and enters the clear water tank via the weir. The clear water tank is connected to a discharge pipeline equipped with a discharge control valve. The separated oily wastewater enters the oil collection tank, which is connected to the inlet pipeline of an oily wastewater pump. The outlet pipeline of the oily wastewater pump is connected to a shuttle oily wastewater tank. A sampling discharge valve is installed at the bottom of the shuttle oily wastewater tank, connected to the oily wastewater inlet of the oil-water separator via a floor drain. This invention can independently complete the collection, treatment, and discharge of oily wastewater.

The invention relates to the technical field of wastewater treatment, and provides a rotational flow oil removal treatment device and method.The rotational flow oil removal treatment device comprises a rotational flow tank, a top cover, supporting legs, a blow-off pipe, a bearing pedestal, a center rod, rotational flow fan blades, a first driving assembly and a second driving assembly; the bearing seat is arranged at the bottom of the rotational flow tank, the first rod is hollow, one end of the first rod penetrates through the bearing seat, the other end of the first rod is located in the rotational flow tank, and the first driving assembly is connected with the first rod and used for driving the first rod to rotate; the rotational flow fan blade is arranged on the first rod and is positioned in the rotational flow tank; the second rod is movably arranged on the first rod, and the second driving assembly is connected with the second rod and used for driving the second rod to move linearly. The device has the effect of conveniently adjusting the position of the oil discharge outlet.