334 results about "Membrane reactor" patented technology

The invention discloses a device and a method for realizing low-carbon-nitrogen-ratio sewage autotrophic and heterotrophic coupled deep nitrogen and phosphorus removal based on a continuous flow membrane aeration bio-membrane reactor. A hollow fiber membrane is arranged in the continuous flow reactor, and an oxygen concentration gradient is formed through a bubble-free membrane aeration technology. In the biomembrane area, spatial partitions of functional bacteria such as nitrifying bacteria and anaerobic ammonium oxidation bacteria are established, and the two anoxic areas realize efficient nitrogen removal through short-cut denitrification coupling anaerobic ammonium oxidation (PD / A) and synchronous nitrification and denitrification. In the aspect of phosphorus removal, the system adopts an anaerobic-aerobic operation mode, phosphorus-accumulating bacteria release phosphorus anaerobically and absorb excessive phosphorus aerobically, and finally, phosphorus removal is realized through residual sludge discharge. The system integrates an internal carbon source extraction process, recovers a sludge carbon source and supplements an electron donor required by denitrification, and reduces the operation cost and carbon emission. The continuous flow MABR denitrification system enhances the denitrification efficiency of the PD / A system, is suitable for large-scale operation, and efficiently and stably realizes deep denitrification of a low-carbon-nitrogen-ratio urban sewage treatment plant.

The invention belongs to the technical field of organic synthesis of ethers, and particularly relates to a method for continuously synthesizing ethylene glycol dimethyl ether. The method comprises the following steps that ethylene glycol, sodium hydroxide and methane chloride serve as raw materials, multi-stage continuous reaction is carried out in liquid membrane reactors to synthesize ethylene glycol dimethyl ether, ethylene glycol, sodium hydroxide and methane chloride are introduced into the first-stage liquid membrane reactor, sodium hydroxide and methane chloride are introduced into the subsequent stages of liquid membrane reactors, and the first-stage liquid membrane reactor and the second-stage liquid membrane reactor are connected with the second-stage liquid membrane reactor. A byproduct sodium chloride is separated from a reaction product in the previous-stage liquid membrane reactor and then enters the next-stage liquid membrane reactor, a byproduct sodium chloride is separated from a reaction product in the last-stage liquid membrane reactor and then clear liquid is obtained, and ethylene glycol dimethyl ether is obtained through rectification treatment. The invention develops a novel process mode for continuously synthesizing an ethylene glycol dimethyl ether product, and provides a new idea for large-scale continuous production of ethylene glycol dimethyl ether.

The present application relates to a kind of full solid-state lithium ion membrane reactor with symmetrical structure and its application, the reactor is in situ construction on the both sides of solid-state lithium ion conductor film with Pt and / or Ni as catalyst, with single-walled carbon nanotube etc. Conductive material is used as current collector gas diffusion electrode, the reactor can work in nitrogen hydrogen mixture atmosphere, integration is high, scale is flexible.The present application changes the working mode of traditional reactor using liquid electrolyte, replaces inefficient nitrogen and proton mass transfer with efficient lithium ion mass transfer, couples lithium-mediated nitrogen reduction and hydrogen oxidation reaction to synthesize ammonia, and the maximum working current density is increased to 1000mA / cm 2 , and can work at 40mA / cm 2 Current density for a long time, with innovation and broad industrial application prospect.

This invention relates to an in-situ detection system for a rotating microliquid film reactor (MFR) for monitoring the nucleation behavior of nanomaterials. The reactor comprises a rotor and a stator, with a stator base angle of 70-85°, a rotational speed of 500-5000 rpm, and a slit width of 10-500 μm to ensure that fluid passing through the slit does not undergo backmixing and to create a strong shear field. A micro-negative pressure sampler is fabricated to capture nucleating particles within the high-speed shear field and bring them into the visible observation area. A high-speed camera and microscope objective are connected in situ, thereby acquiring instantaneous images of the nucleation process at the nanoscale and capturing the transient evolution behavior of crystal nuclei. The construction of this rotating MFR in-situ detection system solves the problems of poor micro-mixing effects and uncontrollable nucleation and growth in traditional stirred tank reactors, leading to poor quality in large-scale preparations, and the inability to observe phase transitions and instantaneous nucleation processes in a closed reactor. The obtained hydrotalcite nucleation results enrich non-classical nucleation theories and provide guidance for the large-scale preparation of nanomaterials.

The invention discloses an efficient treatment process for salt-containing industrial wastewater, and relates to the technical field of wastewater treatment. Salt-containing industrial wastewater sequentially passes through an adjusting tank, a silicon and hardness removal unit, a biochemical unit, a secondary sedimentation tank, a fluorine removal unit, a filter unit, a catalytic ozonation unit, a moving bed bio-membrane reactor treatment unit, a powder carbon sedimentation unit and an ultrafiltration-reverse osmosis double-membrane unit to be treated, produced water is recycled, and concentrated water enters an evaporation and concentration unit; the silicon removal and hardness removal unit is used for treating the wastewater by adding a flocculating agent and a composite coagulant aid; the flocculating agent is a chitosan-based flocculating agent, and the addition amount of the flocculating agent is 10 to 20 mg / L; the composite coagulant aid is composed of a magnesium-aluminum hydrotalcite coagulant aid and alginic acid-silicate hybrid microgel according to the mass ratio of 2: (1-4), and the addition amount of the composite coagulant aid is 5-15 mg / L. The treatment effect of the salt-containing industrial wastewater is remarkably improved.

The embodiment of the utility model provides an algal-bacterial symbiotic membrane aeration bio-membrane reactor, the algal-bacterial symbiotic membrane aeration bio-membrane reactor comprises a container, a membrane assembly, a carbon dioxide supply device, an oxygen supply device and a light source, the membrane assembly is arranged in the container, the membrane assembly comprises a first membrane wire group and a second membrane wire group which are arranged at an interval, the carbon dioxide supply device is connected with the air inlet of the first membrane filament group to provide carbon dioxide for the first membrane filament group, the carbon dioxide is connected with the air inlet of the second membrane filament group to provide oxygen for the second membrane filament group, and the light source irradiates the first membrane filament group. The bacteria-algae symbiotic membrane aeration bio-membrane reactor disclosed by the embodiment of the utility model has a relatively strong sewage treatment effect.

The invention discloses a tubular dynamic membrane sulfur autotrophic denitrification device and method, the device comprises: a housing, which is composed of a middle cylindrical structure and two end hemispherical structures, the upper part of the cylindrical structure is provided with a purified water outlet, the lower part is provided with a backwashing port, and the top end of the hemispherical structure is respectively provided with a sewage inlet and a concentrated liquid outlet; the plurality of supporting bodies are arranged in parallel, each supporting body is composed of two layers of honeycomb-shaped PVC grids and a layer of polypropylene net, and the polypropylene net is clamped between the two layers of honeycomb-shaped PVC grids; the two splitter plates are fixed to the two ends of the supporting body respectively, and splitter holes corresponding to the supporting body are formed in the splitter plates; a large-aperture polypropylene net is used as a filtering support body, and powdered sulfur is used as a precoating agent, so that the problems of difficulty in powdered sulfur recovery and serious loss in the traditional sulfur autotrophic process are solved; meanwhile, sulfur powder with a certain particle size is used as a dynamic membrane reactor of a precoating agent, nitrate nitrogen can be efficiently removed, the effluent quality is improved, and meanwhile the dynamic membrane reactor has the advantages of being resistant to pollution and easy to clean.

The invention discloses a continuous preparation method of sodium tanshinone IIA sulfonate based on a single-tube thin-layer liquid membrane reactor. Comprising the following steps: (1) dissolving tanshinone IIA in an organic solvent as a feed liquid; (2) reacting gas-phase sulfur dioxide with air, and cooling to obtain sulfur trioxide mixed gas; (3) enabling the feed liquid and sulfur trioxide mixed gas to enter a single-tube thin-layer liquid membrane reactor in a parallel flow or reverse flow manner, and carrying out continuous sulfonation reaction to obtain reaction liquid; and (4) adding a sodium salt aqueous solution into the reaction solution to carry out salt forming reaction, centrifuging, drying and purifying to obtain the tanshinone IIA sodium sulfonate. According to the invention, a novel method is adopted to carry out sulfonation reaction on tanshinone IIA, and sulfur trioxide is basically completely consumed after the reaction is finished, so that the generation of waste acid is greatly reduced, and the method has important significance on environmental protection and cost reduction. The green, safe, efficient and continuous preparation of the high-purity tanshinone IIA sodium sulfonate is realized.

The present application discloses a method for monitoring dissolved oxygen in a biofilm, an optimized oxygen supply method, a system and a device, relating to the technical field of wastewater treatment. The monitoring method includes: obtaining image data of a biofilm of a membrane aerated biofilm reactor (MABR) sewage treatment device during sewage treatment; extracting features from the image data to obtain image feature parameters; inputting the image feature parameters into a biofilm dissolved oxygen prediction model to obtain an effective concentration of dissolved oxygen in the biofilm output by the biofilm dissolved oxygen prediction model; the biofilm dissolved oxygen prediction model is obtained by training based on a machine learning model. The present application provides a method for monitoring dissolved oxygen in a biofilm using image recognition by a machine learning model, which overcomes the defects of high cost, easy damage and great maintenance difficulty of microelectrodes, and realizes effective monitoring of dissolved oxygen in the biofilm at low cost.

The invention belongs to the technical field of preparation of corn oligopeptide, and particularly relates to a preparation method of corn oligopeptide, which comprises the following steps: by taking corn protein powder as a raw material, carrying out ethanol-alkali composite pretreatment to obtain a corn protein solution; the corn protein liquid is pretreated through three-stage cooperative treatment of ultrasonic waves, microwaves and high-pressure homogenization; feeding the pretreated corn protein liquid into a three-area circulation type membrane reactor to carry out space-time coupling catalytic reaction; key parameters are monitored in real time through an online monitoring system, and technological conditions are dynamically regulated and controlled through an AI model; after the reaction is finished, performing membrane separation purification and drying to obtain a corn oligopeptide finished product; the utilization rate of the corn protein powder is improved, and high-value utilization of agricultural product processing byproducts is realized; the corn protein enzymolysis efficiency is improved; the bitterness value does not exceed 1; the corn oligopeptide prepared by the preparation method of the corn oligopeptide is applied to the preparation of blood pressure reducing functional food and the preparation of antioxidant cosmetics.

The invention provides a reciprocating type membrane aeration bio-membrane reactor, which comprises a membrane box, the top of which is provided with an action wheel; the membrane assembly is arranged in the membrane box; the guide rail plate is used for being arranged on a membrane pool, an arc-shaped guide rail groove matched with the action wheel is formed in the guide rail plate in the length direction of the guide rail plate, and the arc-shaped guide rail groove is bent downwards; the buoyancy assembly is arranged at the bottom of the membrane box; the power assembly is used for being arranged on the membrane pool and connected with the membrane box, and the power assembly is used for driving the membrane box to reciprocate in the length direction of the arc-shaped guide rail groove. According to the reciprocating type membrane aeration bio-membrane reactor, the energy consumption can be reduced, and the mass transfer effect and the membrane area utilization rate can be improved.

The invention discloses a device for treating high-concentration ammonium salt wastewater by adopting a membrane technology, which belongs to the field of sewage treatment, is used for treating the high-concentration ammonium salt wastewater, and comprises the following steps: adjusting the alkali of the wastewater injected into a mother liquor tank, heating the alkali-adjusted wastewater in a mother liquor preheater, and heating the mother liquor preheater; the heated wastewater is fed into a liquid inlet of the columnar membrane reactor and forms turbulent flow through a liquid distribution pipe and a flow guide baffle in the columnar membrane reactor; a sulfuric acid solution in the acid storage tank is fed into an acid inlet of the columnar membrane reactor through a pump body, and the sulfuric acid solution and wastewater are located on the two sides of the hollow fiber membrane respectively and form a concentration gradient; and the sulfuric acid solution after generating ammonium sulfate crystals circularly enters the acid storage tank. According to the application, ammonia nitrogen selective adsorption in the presence of antibiotics can be successfully realized, ammonia nitrogen can be converted into high-added-value products, and cyclic utilization and appreciation of resources are realized.

Methods of hydrogen (H2) production is provided. The method includes: performing steam cracking of a feed to generate an olefin product and a tail gas including methane; reforming the methane to form a syngas including H2 and carbon monoxide (CO); providing the syngas into a reaction vessel to a region external to a tubular membrane in the reaction vessel; providing a steam into the reaction vessel to the region; performing water-gas shift reaction (WGS) of the syngas in the reaction vessel to form a product gas including the H2 and carbon dioxide (CO2); diffusing the H2 in the product gas through the tubular H2-selective membrane into its bore; discharging the H2 from the bore of the tubular H2-selective membrane; discharging a remainder of the product gas from the external region; and generating heat using the H2 as fuel, where the heat is used for the steam cracking.

The invention belongs to the technical field of environmental engineering, and discloses a predation-enhanced cascade fixed biological membrane sewage treatment process dual-environment-three-component coupling model. Metabolism of autotrophic microorganisms and heterotrophic microorganisms in activated sludge and a biological membrane and predation effects of protozoan and metazoan are comprehensively considered, on the basis of a mass balance principle, a substance conversion way in a biological predation enhanced sewage treatment reactor is analyzed, and dynamic changes of bacteria and pollutants are disassembled into diffusion, metabolism and predation processes; a material flow model framework is established, on the basis of an ASM1 activated sludge model and a biological membrane model, a primary animal predation model and a metazoan predation model are coupled, and a dual-environment-three-component coupling model is recreated. According to the method, the pollutant removal process and the dynamic change of the microbial community are dynamically simulated through multi-model coupling, and the method is suitable for optimizing the design and operation parameters of a sewage treatment reactor and particularly has remarkable application value in regulation and control of a cascade fixed bio-membrane reactor.

The invention discloses a continuous synthesis device and method for pseudo-boehmite, and belongs to the field of chemical material synthesis. The device comprises a raw material storage tank, a rotary liquid membrane reactor, a stirring tank, a tubular reactor, a vibration motor and a heating device. Three raw materials stored in different raw material storage tanks are conveyed into a liquid membrane reactor through a pump in a parallel flow mode, slurry generated after reaction flows into a stirring tank by means of gravity and then is conveyed into a tubular reactor which is placed in a heating device and preheated to a set temperature through a pump, and the tubular reactor and a vibration motor are fixed to the same vibration platform. The vibration motor is arranged outside the heating device, and vibration waves generated during operation of the vibration motor are conducted to the tubular reactor through the vibration platform. The slurry is aged in the tubular reactor and enters a product collecting tank after flowing out. The obtained pseudo-boehmite is uniform in particle size distribution, the particle size fluctuation range is small in the continuous synthesis period, energy consumption is reduced through continuous preparation, and efficiency is improved.

The invention discloses a method for realizing deep autotrophic nitrogen removal of sludge digestion liquid based on alternate intermittent aeration of a double-membrane aeration bio-membrane reactor (MABR). The process device comprises a sludge digestion liquid raw water tank, a single-stage double-MABR reactor, two MABR devices and a water outlet tank. According to the method, sludge digestion liquid enters the single-stage double-MABR reactor, the two MABR devices are alternately and intermittently aerated, the state of one aeration and one aeration stopping is always kept, and ammonia nitrogen in raw water is converted into nitrite through ammonia oxidizing bacteria enriched on the inner side of an MABR membrane. And simultaneously supplying to anaerobic ammonium oxidation bacteria enriched on the outer sides of the two MABR membranes through matrix diffusion for denitrification and generation of nitrate. Denitrifying bacteria enriched on the outer side of the MABR membrane utilize raw water organic matters to drive short-cut denitrification to synchronously supply nitrite to anaerobic ammonium oxidation bacteria so as to realize deep autotrophic nitrogen removal. According to the invention, a double-anaerobic ammonia oxidation reaction hot area is constructed through alternate intermittent aeration of double MABRs, and efficient deep autotrophic nitrogen removal of the sludge digestion liquid can be stably realized.

The invention provides a Joule thermally driven CO2 rapid desorption method based on a hollow fiber carbon film. The conductive hollow fiber carbon film is used as a reactor; the method comprises the following steps: pumping an absorption solution of saturated CO2 into a tube pass of a membrane reactor, simultaneously applying voltage to a component to generate Joule heat, vacuumizing a shell side of the component, separating desorbed carbon dioxide and barren liquor through a gas-liquid separation tank, and then collecting the desorbed carbon dioxide and barren liquor. The problems of high energy consumption and slow desorption of a traditional process are solved, the energy consumption-rate mutual exclusion dilemma in the amine solution regeneration process is overcome, the phenomena of amine degradation and equipment corrosion are relieved, and the dynamic response speed and comprehensive performance of a desorption system are improved.

The invention discloses a method and a device for degrading bisphenol A by using a propane matrix membrane bio-membrane reactor, and belongs to the technical field of microorganism application. The method specifically comprises the following steps: inoculating activated sludge into a membrane bio-membrane reactor with a basic inorganic salt culture medium, and introducing propane to promote the growth of a bio-membrane on hollow fiber membrane filaments in the membrane bio-membrane reactor, so as to obtain the membrane bio-membrane reactor after membrane formation is completed; the method comprises the following steps: introducing bisphenol A-containing wastewater to be treated into a membrane bio-membrane reactor, continuously introducing propane, and inducing microorganisms to express alkane monooxygenase and cytochrome P450 monooxygenase, thereby promoting hydroxylation of bisphenol A and degrading bisphenol A into a downstream product of which the toxicity is lower than that of bisphenol A. The propane is used as a carbon source and an electron donor, the propane can be efficiently utilized to provide a safe and good environment for biodegradation of bisphenol A, and secondary pollution possibly caused by a traditional carbon source is avoided.

The application discloses a MABR membrane aeration biofilm reactor for advanced treatment of sewage, and belongs to the technical field of sewage treatment. The height of the moving seat is adjusted through the adjusting assembly. The fixed ring drives the flexible ring and the scraper to rotate through the plurality of elastic columns, and the mud and impurities attached to the outside of the MABR membrane are scraped. The elastic column and the flexible ring are deformed under the action of external force and are in flexible contact with the outside of the MABR membrane through the scraper, so that the damage of the scraper to the MABR membrane is prevented, and the closely attached biofilm fragments or hard scale on the MABR membrane can be removed. Since the plurality of scrapers are located between the two suction pipes, the fallen mud and impurities can be effectively extracted by the suction holes, so that the secondary pollution of the MABR membrane caused by the floating mud and impurities is prevented. Therefore, the traditional cleaning method of using a single flushing method or using a chemical cleaning method is abandoned, the cleaning effect is improved without damaging the MABR membrane, and the service life of the MABR membrane is prolonged.

The invention discloses a device and a method for realizing double-short-range coupling anaerobic ammonia oxidation sewage denitrification by combining biologically-enhanced carbon capture with a two-stage membrane aeration bio-membrane reactor. A high-load activated sludge device and an anaerobic fermentation tank are used for carbon source extraction, and a carbon source is provided for a subsequent anoxic tank. The two-stage MABR system adopts a hollow fiber membrane to perform bubble-free membrane aeration, and oxygen is diffused to form an oxygen concentration gradient, so that the surface of the membrane is divided into an oxygen-rich region and an oxygen-poor region. In the aerobic section, the dissolved oxygen gradient of a biological membrane is regulated and controlled to construct a nitrifying bacterium and anaerobic ammonium oxidation bacterium function partition, so that short-cut nitrification coupled anaerobic ammonium oxidation synergistic denitrification is realized; in the anoxic section, nitrate nitrogen and part of ammonia nitrogen are reduced and COD (Chemical Oxygen Demand) is removed through the synergistic effect of short-cut denitrification and anaerobic ammonia oxidation and synchronous nitrification and denitrification on the surface of the membrane. The two-stage MABR synergistic carbon capture device denitrification system constructed by the method realizes efficient and stable deep denitrification, reduces the addition of a carbon source and the yield of sludge, and saves energy consumption.

The invention relates to a method for preparing methanol through hydrogenation of carbon dioxide. The method comprises the following steps: sequentially introducing raw material gas into a first fixed bed reactor filled with a catalyst, the interior of a membrane tube of a first membrane reactor, a second fixed bed reactor filled with a catalyst, the interior of a membrane tube of a second membrane reactor and a third fixed bed reactor filled with a catalyst; purging gas is respectively introduced into the exterior of the membrane tube of the first membrane reactor and the exterior of the membrane tube of the second membrane reactor; the catalyst comprises a metal oxide carrier and an active metal component, the active metal component is Pd, and the metal oxide carrier is an indium-zirconium composite oxide with an ordered mesoporous structure; the membrane tube of the first membrane reactor and the membrane tube of the second membrane reactor respectively comprise a membrane support body and a membrane functional layer covering the inner surface of the membrane support body, and the membrane functional layer is a molecular sieve membrane. The method provided by the invention has high catalytic activity and selectivity, and can significantly improve the conversion rate of carbon dioxide and the content of methanol in the product.

The utility model discloses a biological membrane car washing sewage circulating filter with an external vibrator. The biological membrane car washing sewage circulating filter with the external vibrator comprises a pretreatment system, a biological membrane reactor, a vibrator device, a filtering system, a disinfection system and a water circulation system, the vibrator device is externally arranged, so that the occupied space in the bio-membrane reactor can be reduced, and the distribution of a flow field and a bio-membrane in the bio-membrane reactor cannot be directly influenced. The vibrator device is arranged outside, so that the vibrator device is more convenient to overhaul, maintain and replace, and the internal structure of the bio-membrane reactor does not need to be disassembled.

The invention provides a preparation method of L-valine. The method comprises the following steps: (1) immobilizing thalli in a seed culture solution by adopting a hollow cellulose membrane reactor in a fermentation system to obtain thalli immobilized on a hollow cellulose membrane; wherein the hollow cellulose membrane reactor comprises a hollow cellulose membrane; (2) circularly flushing the thalli fixed on the hollow cellulose membrane by adopting a fermentation culture medium to ferment the thalli fixed on the hollow cellulose membrane, and performing temperature control on the fermentation process by utilizing a plate heat exchanger to obtain fermentation liquor; and (3) carrying out anaerobic catalysis on the fermentation liquor by utilizing a catalytic culture medium. The method has obvious energy-saving and consumption-reducing effects, does not need to filter again to remove bacteria and impurities, and reduces the cost.

The invention relates to the field of chemical equipment, in particular to a 1-nitroanthraquinone continuous production process based on a dynamic liquid membrane continuous flow reactor, which comprises a solid feeding device, a homogeneous emulsifier, a quenching kettle, a solid-liquid separator, a centrifugal separator and a dynamic liquid membrane reactor, a sulfuric acid storage tank is divided into two branches through a sulfuric acid feeding pump, one branch is connected to the dynamic liquid membrane reactor, the other branch is connected to the dynamic liquid membrane reactor through a flow self-control valve, the quenching kettle is connected to a solid-liquid separator, the solid-liquid separator is divided into two branches, one branch is connected to an anthraquinone crude product storage tank, the other branch is connected to a centrifugal separator, and the other branch is connected to a gas-liquid separator. The centrifugal separator is divided into two branches, one branch is connected to the acid water storage tank, and the other branch is connected to the dichloroethane storage tank, so that the reaction selectivity of the anthraquinone nitration reaction can be effectively improved, high-viscosity solids are prevented from being blocked, and the conversion rate of raw materials in the continuous reaction of the anthraquinone nitration reaction is improved.

This specification describes a membrane aerated biofilm reactor (MABR) and processes for nitritation, nitritation-denitritation or deammonification. The supply of oxygen through the gas-transfer membrane is limited to suppress the growth of nitrite oxidizing bacteria (NOB). Exhaust gas from an MABR unit may have an oxygen concentration of 4% or less. The process can optionally include one or more of: intermittent (batch) feed of process air; process air modulation; process air direction reversal; process air recycle; and, process air cascade flow. The process can optionally include adding a seed sludge containing anammox to a reactor, optionally after pre-treatment and selection. The process can optionally include pre-seeding an MABR media.

The application provides a multi-element circulating elution type photocatalytic falling film reactor, which comprises a shell and photocatalytic fiber membranes, a first cavity is formed in the shell, a plurality of partition plates and photocatalytic fiber membranes are fixedly arranged in the first cavity, characterized in that a plurality of light sources are arranged on the two side surfaces of the photocatalytic fiber membranes, a spraying mechanism is arranged on the partition plates and the photocatalytic fiber membranes, the spraying mechanism comprises a main spraying assembly and a secondary spraying assembly, a first opening is formed in the shell, a connecting pipe is fixedly connected to the first opening, and the connecting pipe is fixedly connected with the secondary spraying assembly. According to the scheme, the circulating spraying mechanism is arranged in the first cavity, and a plurality of photocatalytic fiber membranes are vertically arranged, so that the organic wastewater is circulated through the main spraying assembly and the secondary spraying assembly, and the vertically arranged photocatalytic fiber membranes can be fully contacted with the organic wastewater, thereby achieving the purpose of ensuring the purification rate of the organic matter in the organic wastewater.

The utility model discloses domestic sewage treatment equipment for a microalgae bio-membrane reactor, which relates to the technical field of domestic sewage treatment and comprises a treatment cylinder, through holes are circumferentially arrayed on the surface of an upper mounting rack, the mounting rack is arranged between a limiting hole and the through holes, and rotating plates are arrayed on the surface of microalgae bio-membrane filler at equal intervals. When the microalgae biological membrane filler needs to be replaced, the access cover is opened, the upper mounting frame is taken out upwards from the surface of the rotating shaft, then the mounting frame corresponding to the microalgae biological membrane filler needing to be replaced is pulled out from the limiting hole, a new mounting frame is placed into the limiting hole again, and the upper mounting frame is pressed into the surface of the rotating shaft again, so that replacement can be completed. The microalgae biological membrane filler can be independently replaced and maintained, so that the cost is reduced. The rotating shaft is driven to rotate by the speed reducing motor, so that the microalgae biological membrane filler rotates in the treatment barrel and is in full contact with water in the treatment barrel, and the filtering effect is improved.

The invention belongs to the field of petrochemical engineering, discloses a high-temperature change-membrane reactor coupled water gas shift hydrogen production process comprehensively considering heat energy utilization, and provides a set of two-stage series water gas shift process of a high-temperature reactor and a membrane reactor. And the reaction temperature of the second-stage conversion is matched with the high-temperature conversion, so that the reduction of the energy grade is avoided, and the yield of high-quality steam is increased. And meanwhile, the selective separation of hydrogen also promotes the liquefaction latent heat of water to be fully utilized on the reaction side, and the quality of the produced steam is further improved. Compared with the traditional process, the hydrogen production system provided by the invention has the advantages that under the condition of a certain raw material conversion rate, the hydrogen recovery rate reaches 93.8%, the steam output value is increased by 16.2% on year-on-year basis every year, the total equipment investment of the whole system process is saved by 42.1% on year-on-year basis, the operation cost is saved by 12.1% on year-on-year basis every year, and remarkable economic advantages are achieved.

This invention belongs to the field of hydrogen production technology, specifically relating to a method and application of hydrogen production via an oxygen-permeable membrane. The method includes the following steps: (1) introducing water vapor into a second oxygen-permeable membrane reactor R2 to generate a high-temperature reactive gas 1; (2) mixing the remaining hydrogen-containing gas on the water vapor side of the second oxygen-permeable membrane reactor R2 with the high-temperature reactive gas 1 and introducing it into a first oxygen-permeable membrane reactor R1; (3) introducing water vapor into the first oxygen-permeable membrane reactor R1, where oxygen migrates through the oxygen-permeable membrane to the oxygen side and reacts with the mixed gas 1 to generate a high-temperature reactive gas 2; (4) introducing a portion of the high-temperature reactive gas 2 as a circulating gas into the second oxygen-permeable membrane reactor R2 and mixing it with fuel; (5) introducing the remaining hydrogen-rich gas on the water vapor side of the first oxygen-permeable membrane reactor R1 into a first condenser C1 to obtain high-purity hydrogen. This invention further reduces energy consumption while increasing the production rate, providing a convenient, efficient, and economical way to produce hydrogen.

The invention belongs to the technical field of thermochemical ammonia decomposition, and relates to an ammonia decomposition membrane reactor hydrogen production system based on solar full spectrum. The device comprises a vacuum pump, a hydrogen collecting bottle and a liquid ammonia storage tank for providing a liquid ammonia raw material, and further comprises a multi-channel membrane reactor, a disc type solar heat collector for receiving and focusing solar full-spectrum radiation and a multi-parameter sensor group for monitoring temperature, pressure, flow and illumination intensity parameters in real time. By arranging the stepped preheating and waste heat recovery assembly, a stepped waste heat recovery network is formed, heat energy of different temperature zones in membrane reactor product tail gas is efficiently utilized for preheating ammonia raw materials and auxiliary heat supply of the system, the heat efficiency of the system is remarkably improved, energy consumption is reduced, the structure is compact, and the integration degree is high; the device realizes solar photo-thermal-photoelectric cooperative driving, hydrogen membrane separation synchronous extraction and intelligent waste heat utilization, is suitable for a distributed green hydrogen production scene, and has a good industrial popularization prospect.