268 results about "Methane production" patented technology

The invention provides a multi-target collaborative optimization scheduling method for a hydrogen-containing comprehensive energy system, and the method comprises the steps: building a hydrogen energy diversified utilization model containing electrolytic hydrogen production, hydrogen-to-methane production, hydrogen-to-electricity conversion, carbon capture, hydrogen storage and thermoelectric hydrogen doping, and fully absorbing surplus wind power new energy; on the basis, economy and low-carbon property are taken into consideration, a hydrogen-containing comprehensive energy system multi-target optimization scheduling model with minimum total operation cost and minimum carbon emission as targets is established, the model is solved in combination with an epsilon-constraint method and a TOPSIS decision-making method, and quantity-quality cooperative operation of the comprehensive energy system is promoted. Under the condition that the hydrogen doping ratio of fuel gas is fixed, the total cost and the carbon emission amount are reduced along with the increase of the hydrogen doping ratio of the CHP unit, and when the hydrogen doping ratio reaches up to 20%, the economic benefit and the environmental benefit of the IES are the best. Compared with a traditional IES optimization scheduling problem, multi-objective optimization can better promote quantity-quality cooperative operation of the IES, the overall performance of the comprehensive energy system is improved, and the method can be widely applied and popularized.

The invention provides a high-crystallinity modified iron oxide as well as a preparation method and application thereof, and relates to the technical field of organic solid waste treatment. The preparation method comprises the following steps: preparing a precursor MIL-88B by utilizing a hydrothermal method; the precursor MIL-88B is subjected to calcination treatment, and an iron oxide with the MIL-88B as the precursor is obtained; the temperature condition of the calcination treatment is 550-850 DEG C. The high-crystallinity modified iron oxide prepared by the preparation method improves methane production efficiency and stability, avoids competition of iron reducing bacteria, is stable in long-term operation and low in cost, and has both environmental and economic benefits.

The invention relates to a shale or coal rock gas evaluation method based on a gas-water two-phase flow isotope fractionation model. The shale or coal rock gas evaluation method comprises the following steps: 1, collecting data; 2, establishing a gas well model; 3, establishing a control equation set; 4, coupling the influence of the real gas effect and the effective stress; 5, establishing a gas transmission model and a relative permeability model; 6, establishing a relation between capillary pressure and saturation; 7, considering critical desorption pressure; 8, setting boundary conditions of initial conditions; 9, solving a control equation set; 10, calculating production dynamic parameters and isotope values; 11, performing history fitting; 12, verifying historical fitting quality; 13, predicting productivity; 14, calculating a gas dynamic output proportion; 15, identifying a fractionation inflection point and gas production mechanism conversion; by coupling gas-water two-phase flow, multiple gas transmission mechanisms, stress sensitivity and methane isotope competitive adsorption theories, yield prediction of the deep reservoir and quantitative evaluation of the dynamic proportion of produced gas are realized.

The invention discloses a continuous kettle type nitromethane production process, and relates to the technical field of basic chemical raw material synthesis and flow chemical reaction process control, which comprises the following steps: quantitatively and continuously pumping a temperature-regulated sodium nitrite mixed solution into a raw material mixer in a closed-loop automatic control mode through a variable-frequency feeding pump matched with a mass flow meter; synchronously, quantitatively and continuously pumping dimethyl sulfate into the raw material mixer in a closed-loop automatic control manner by matching a feeding pump with a stop valve and a mass flow meter, and uniformly mixing the two raw materials in the raw material mixer according to the stoichiometric molar ratio of the dimethyl sulfate to the sodium nitrite, according to the tandem type segmented design, each reaction kettle can be subjected to customized temperature field control and heat transfer design specially aiming at the special thermodynamic and dynamic requirements of the reaction stage where the reaction kettle is located, the heat transfer efficiency of the whole system is greatly improved, and due to the fact that reaction heat is taken away timely and accurately, the heat transfer efficiency is greatly improved. And a by-product generation path induced by local abnormal high temperature is effectively restrained.

The invention relates to a method for inhibiting rumen gas production by using a genetically modified laver filament as a ruminant feed additive and a method for inhibiting methane production by using the genetically modified laver filament as the ruminant feed additive. A porphyra yezoensis bromine peroxidase gene is cloned, an overexpression vector of the gene is constructed, porphyra yezoensis thallus is used as a receptor for genetic transformation, and a porphyra algal strain of which the key enzyme expression quantity is remarkably improved is obtained through screening. The method comprises the following steps: inducing thalli to generate protonema, crushing the protonema by using a crusher, carrying out ventilated large-scale culture in a seawater culture medium added with PES by using a column bioreactor to obtain a large number of protonema materials, collecting the protonema materials, crushing the protonema materials by using the crusher, and drying at low temperature. The obtained laver protonema powder is put into a vacuum bag for low-temperature preservation in dark light, and can be applied to preparation of ruminant feed as a dairy cow feed additive. The filamentous can accumulate halogenated compounds such as bromidogen and the like, can inhibit the activity of a key enzyme generated by methane in rumen, and further inhibits the generation of methane.

The invention discloses an electric methane preparation catalyst compounded by Ni nanoclusters and ZrO2 with lattice embedded with Ru single atoms as well as a preparation method and application of the electric methane preparation catalyst. The electric methane preparation catalyst comprises a NiNCRuSA / ZrO2 bimetallic active site catalyst compounded by the Ni nanoclusters and the ZrO2 with the lattice embedded with the Ru single atoms. The electric methane preparation catalyst comprises a NiNCRuSA / ZrO2 bimetallic active site catalyst, the NiNCRuSA / ZrO2 bimetallic active site catalyst is of a ZrO2 composite structure formed by embedding Ru monatomic into Ni nanoclusters and crystal lattices, the Ni nanoclusters and the Ru monatomic are adjacently distributed on a ZrO carrier to form a synergistic catalysis structure, rich and efficient active sites are provided for catalytic reaction, and reactant adsorption and conversion are facilitated; in the subsequent CO2 methanation reaction, the Ni element quickly dissociates H2 and provides sufficient H *, Ru replaces ZrO2 to serve as an active site for CO2 adsorption and conversion, conversion of an intermediate of CO2 can be accelerated, the reaction activity is greatly enhanced through cooperation of the Ni element and the Ru, the reaction energy barrier is reduced, and the overall catalytic efficiency is improved.

The invention discloses a method for improving methane production through low-temperature anaerobic digestion of sewage sludge, and relates to the technical field of solid waste resource utilization and renewable energy sources. The invention aims to solve the problem of low methane yield in the anaerobic digestion process of sewage sludge under a low-temperature condition. The method comprises the following steps: adding an inoculum and a culture medium into a reaction device, and fully stirring and mixing to obtain a mixed matrix; the inoculum is anaerobic digestion sludge, and the culture medium is sewage sludge which is subjected to heat treatment at 90-100 DEG C for 0.5-1 hour; and adding the biochar into the mixed matrix, and carrying out low-temperature anaerobic digestion to complete the improvement of the low-temperature anaerobic digestion methane production of the sewage sludge. The method for improving methane production through low-temperature anaerobic digestion of sewage sludge can be obtained.

The invention relates to the technical field of methane preparation, and discloses a methane preparation system based on carbon dioxide capture coupling electrolytic hydrogen production. According to the system, a trapping module is used for separating and purifying carbon dioxide from industrial waste gas through a pressure swing adsorption technology; the electrolysis module utilizes a proton exchange membrane electrolytic bath to decompose deionized water to generate high-purity hydrogen; the proportioning module is used for accurately mixing carbon dioxide and hydrogen according to the stoichiometric ratio of 1: 4 to form reaction raw materials; the catalysis module performs a Sabatier reaction under the action of a nickel-based catalyst to convert carbon dioxide and hydrogen into methane; the condensation module separates water vapor through cooling condensation to obtain a purified methane product. The technical problems of low system integration level and unstable conversion efficiency caused by lack of accurate control algorithms in the processes of carbon dioxide capture, electrolytic hydrogen production, gas proportioning, catalytic methanation and product separation in the prior art are solved.

The invention discloses a method and a device for monitoring the stability of an anaerobic digestion system in real time. The method comprises the following steps: 1, carrying out non-targeted metabonomics analysis on the anaerobic digestion mVOCs category by adopting headspace solid-phase microextraction in combination with gas chromatography-high resolution mass spectrometry; 2, screening differential mVOCs markers based on principal component analysis and orthogonal partial least squares discriminant analysis; and 3, constructing a system stability real-time monitoring system by using an electronic nose sensor array, and when the difference mVOCs marker concentration deviates from a threshold value or difference categories are continuously accumulated, triggering early warning and recommending an optimization strategy by the system. The method and the device can monitor the state of the anaerobic reactor in real time, early warn the methane production inhibition risk in advance compared with traditional parameters (pH, volatile fatty acid and the like), improve the biogas yield and reduce the operation and maintenance cost, are suitable for intelligent management of anaerobic digestion scenes of kitchen garbage, municipal sludge, agricultural waste and the like, and can also be expanded to other anaerobic biological fermentation fields.

The invention relates to the technical field of anaerobic methanogenesis, and provides a polyurethane foam filler as well as a preparation method and application thereof. The polyurethane foam filler comprises a polyurethane foam body and auxiliaries dispersed in the polyurethane foam body, and the auxiliaries comprise nano zero-valent iron, molybdate and a conductive carbon material. According to the polyurethane foam filler provided by the invention, through the synergistic effects of filler surface hydrophilicity, reducing atmosphere, inhibition on sulfate reduction reaction, promotion on interspecific electron transfer and the like, the starting of an anaerobic methanogenesis process can be accelerated, the impact resistance is enhanced, the efficiency of the anaerobic methanogenesis process and the reaction operation stability are effectively improved, and the service life of the polyurethane foam filler is prolonged. And the method has wide practical value and application prospect.

The invention belongs to the technical field of sludge treatment and recycling, and relates to a method for promoting anaerobic methane production by sludge through tubular pore structure biochar. Comprising the following steps: screening, washing, segmenting and drying a biomass material with a natural grade pore network, and then pyrolyzing and screening to obtain tubular pore structure biochar; carrying out sedimentation, sieving, dilution and pyrohydrolysis on the residual sludge to obtain pretreated sludge; mixing the pretreated sludge with the inoculated sludge to obtain mixed sludge; and adding the tubular pore structure biochar and the mixed sludge into an anaerobic reactor, aerating nitrogen in the anaerobic reactor, sealing the anaerobic reactor in a water bath constant-temperature oscillator, and carrying out methane production until no methane is generated in the anaerobic reactor. According to the method, the anaerobic methanogenesis efficiency of the residual sludge is remarkably improved by utilizing the tubular pore structure biochar, and the improvement of the anaerobic methanogenesis efficiency of the sludge under the mediation of the exogenous conductive material is realized.

A process for producing methane is specified. According to one embodiment, the process comprises a first reaction stage (S1) comprising calcining a metal bicarbonate in a first reaction volume (1) to form carbon dioxide and reacting the carbon dioxide with hydrogen gas in a second reaction volume (2) to form gaseous products (3), wherein one of the gaseous products (3) is methane and wherein thermal energy released during the reaction of the carbon dioxide is used to calcine the metal bicarbonate.

The application provides a method for producing biogas by anaerobic fermentation of pea protein wastewater, and relates to the technical field of biomass energy utilization, wherein the chemical oxygen demand is 10000-15000 mg / L, the ammonia nitrogen is 400-800 mg / L, and the sulfate radical is 600-1000 mg / L; the method comprises the following steps: (1) gradient micro-oxygen hydrolysis acidification pretreatment; (2) physical-chemical and biochemical synergistic intensified pretreatment; and (3) anaerobic methane production. The method for producing biogas by anaerobic fermentation of pea protein wastewater is capable of effectively inhibiting sulfate reducing bacteria, reducing hydrogen sulfide generation, reducing free ammonia toxicity and accelerating hydrolysis of macromolecular organic matter through gradient micro-oxygen hydrolysis acidification. In combination with modified tourmaline ceramic and magnetization synergistic treatment, the microbial activity and mass transfer efficiency are further improved. The whole process can be stably operated, the COD removal rate, the biogas yield and the methane content are significantly improved, and the harmless treatment of the pea protein wastewater and the resource utilization of the biogas are efficiently realized.

The present invention relates to an apparatus for producing biomethane and a method for producing biomethane from waste using same. The apparatus for producing biomethane, which corresponds to one aspect of the present invention, is directed to a technique for producing biomethane from wastewater to be discarded and is environmentally friendly and economical. In addition, the apparatus for producing biomethane of the present invention utilizes carbon materials, such as carbon dioxide, present in the atmosphere and thus can contribute to carbon neutrality. In addition, the apparatus for producing biomethane of the present invention separately performs a liquid fermentation process, thereby exhibiting excellent biomethane production efficiency.

To provide a methane production method in which a conversion ratio of carbon dioxide into methane is high.SOLUTION: There is provided a methane production method configured to: supply a raw material gas having a molar ratio (H2 / CO2) of carbon dioxide and hydrogen of 7-12, into a reaction vessel in which a temperature is set to 310-390°C; bring the raw material gas into contact with a catalyst which activates a methanation reaction for producing methane.SELECTED DRAWING: None

The invention relates to the technical field of integrated energy system dispatching, in particular to an integrated energy system low-carbon dispatching method considering fuel gas hydrogen mixing and carbon transaction, which comprises the following steps of: constructing an integrated energy system model containing electric power, thermal power, natural gas and coupling equipment, and defining an electric hydrogen production process and an electric methane production process of power-to-gas equipment by the coupling equipment model; a fuel gas mixed hydrogen energy flow calculation model is constructed, a decomposition solution method is adopted for iterative convergence and dynamic calculation of a mixed fuel gas real-time heat value, and energy balance constraints are improved; constructing an optimal scheduling model considering the stepped carbon transaction, and taking the minimization of the total operation cost as a target; and applying hydrogen mixing proportion upper limit constraint, and cooperatively deciding power distribution and a hydrogen storage tank charging and discharging strategy through an optimization algorithm to solve a target function. According to the method, the energy flow calculation precision and the renewable energy consumption capability are improved, and collaborative optimization of system economy and environmental protection benefits is realized.

The present application provides a kind of microbial inoculum for methane production by straw anaerobic fermentation, belongs to the technical field of microbial fermentation.The microbial inoculum is fermented Lactobacillus mucus and Lactobacillus plantarum.The methane production of the microbial inoculum is 17.64 times compared with the group without microbial inoculum, indicating that the microbial inoculum composed of fermented Lactobacillus mucus and Lactobacillus plantarum can effectively utilize straw anaerobic fermentation to produce a large amount of methane, and the specific synergistic effect between microbial inoculums.The method significantly improves the effect of methane production by promoting the hydrolysis of fermentation substrate, and has the advantages of low cost, sustainability, simple operation and high organic matter utilization rate.

The invention belongs to the technical field of biomass energy utilization, and particularly relates to a biogas fermentation system and method. The biogas fermentation system comprises a pretreatment section, a desulfurization section, a hydrolysis section, an acid production section and a methane production section which are sequentially arranged from top to bottom. A discharge pipe at the bottom of the pretreatment section penetrates through the liquid distributor to reach the middle part of the desulfurization section; the return pipe is connected with the liquid distributor through the pump; gas in the hydrolysis section enters the desulfurization section for desulfurization through a gas guide pipe and a floating valve group in the desulfurization section; gas in the acid production section enters the hydrolysis section through a gas guide pipe and a floating valve group in the hydrolysis section to be hydrolyzed; and gas in the methane production section enters the acid production section through a gas guide pipe and a floating valve group in the acid production section to be subjected to acid production treatment. According to the invention, CO2 removal, H2S removal, oxygen removal, ammonia removal, mercaptan removal, halogenated hydrocarbon removal and siloxane removal are carried out on the fermentation system through a plurality of strengthening means, so that high-quality biogas and functionalized biogas slurry are obtained.

A method for producing methane with excellent methane selectivity is provided. [Solution] A method for producing methane using a carbon dioxide electrolysis cell including a carbon dioxide reduction electrode and an electrolyte, wherein the carbon dioxide reduction electrode has, in that order, a cathode gas diffusion layer and a cathode catalyst layer that has been treated to be water repellent, and the method includes step A of supplying carbon dioxide from the cathode gas diffusion layer side and water from the electrolyte side to the cathode catalyst layer of the carbon dioxide reduction electrode in a temperature environment exceeding 0°C and not exceeding 50°C, and applying electricity.

To provide a methane production reactor enabling methane production with reduced energy consumption and superior methane conversion efficiency.SOLUTION: A methane production reactor according to an embodiment of the present invention comprises a honeycomb substrate and a catalyst layer. The honeycomb substrate includes partition walls defining a plurality of cells. The cells contain gas flow paths. The catalyst layer includes a methanation reaction catalyst for methanating by reacting carbon dioxide with hydrogen. The catalyst layer is provided on the surface of the partition walls so as to face the gas flow paths. The methanation reaction catalyst contains Ni as an active component and a cerium oxide support carrying the Ni. The honeycomb substrate contains cordierite. The cell density in the honeycomb substrate is 300 cpsi or more.SELECTED DRAWING: Figure 1

The invention discloses a method for improving methane production by anaerobic digestion through hydrothermal electrochemistry, which comprises the following steps: dispersing livestock and poultry manure by using a water solvent to obtain a raw material solution, carrying out anaerobic digestion treatment on the raw material solution under external voltage through an electrochemical anaerobic digestion system, and dehydrating the material solution subjected to anaerobic digestion to obtain a biogas residue solution with adjusted solid content, carrying out a heating hydrolysis reaction under a low-oxygen or anaerobic condition; after the hydrolysis reaction, the feed liquid is directly introduced into a flash tank, so that the pressure of the feed liquid is suddenly reduced, the temperature is reduced along with the room temperature environment, macromolecular substances are cracked into micromolecular substances under the flash evaporation effect, and then centrifugal treatment is performed to obtain biogas residue pyrohydrolysate and livestock and poultry manure biogas residues. The method provided by the invention not only can produce methane at high yield, but also enhances the degradation effect of organic matters in the raw material solution.

The application provides a kind of microbial population evolution monitoring method and device based on magnetic field intensity regulation, related to microbial monitoring field, through multi-source sensor real-time collection microbial community, methane production, magnetic field parameter and environmental working condition data, construct supervision data set, establish dynamics model containing magnetic field influence function, and adopt supervision learning to carry out parameter online identification and rolling prediction, finally through optimization algorithm real-time adjustment magnetic field parameter, realize the closed-loop optimization control of microbial permeability process.The application adopts the above-mentioned microbial population evolution monitoring method and device based on magnetic field intensity regulation, has the advantages of strong real-time, high interpretability, good engineering implementability, etc., is suitable for coal seam microbial permeability, coalbed gas production optimization and mine ecological process evaluation and other application scenarios.

The present application belongs to the field of biomass anaerobic digestion, and provides a two-phase integrated anaerobic digestion and exogenous particle recycling device.The device comprises a main reactor, an online liquid level control system, a gas collection system and a gas backflow stirring system, and the main reactor contains a hydrolysis acidification zone, an acid production buffer zone and a methane production zone.The hydrolysis acidification zone is provided with a hydrolysis acidification chamber, a stirring device, a hydrolysis acidification chamber sample discharge port and a sample inlet.The acid production buffer zone comprises an acid production buffer chamber and an improved three-way valve.The methane production zone comprises a methane production chamber sample discharge port, a gas distribution device, a methane production chamber, a PVC connecting pipe, a particle settling zone, an overflow sample discharge port, a partition, a particle settling zone sample discharge port, a baffle and a sludge discharge port.The two-phase integrated anaerobic digester in the present application separates the hydrolysis acidification zone and the methane production zone through an upper and lower layered anaerobic digestion tank, which is conducive to improving the organic load and volumetric gas production rate of the system, and the reactor structure is compact, reducing the floor area.

This invention provides an integrated treatment system for harvesting microalgae using recyclable magnetic nanoparticles while simultaneously promoting methane production, belonging to the field of algal resource utilization and disposal. The specific method includes: uniformly mixing synthesized magnetic nanoparticles with algal liquid; harvesting and concentrating microalgae using magnetic separation; mixing the magnetic-algae aggregates with waste activated sludge in a certain proportion and then anaerobically treating the sludge; and finally recovering the magnetic nanoparticles from the anaerobic co-digestion residue using air flotation. Results show that compared with existing technologies, this invention achieves over 95% high-efficiency integrated treatment of microalgae harvesting and anaerobic co-digestion, without requiring the addition of magnetic nanoparticles during the anaerobic co-digestion process; it simplifies the process flow, achieves harmless treatment of microalgae and waste activated sludge, and further promotes methane production in the subsequent anaerobic co-digestion process; it also enables the recovery and reuse of magnetic nanoparticles, has simple operating equipment, and produces virtually no secondary pollution.

The present application relates to the field of electrochemical wastewater biological treatment technology, and discloses an electrode, a preparation method thereof and application of the electrode in strengthening methane production of a membrane bioreactor.The preparation method comprises the following steps: step (1): impregnating a foamed carbon matrix in a dispersion system containing a tantalum precursor under vacuum conditions, and obtaining an intermediate after drying; step (2): heat treating the intermediate at 400-600 DEG C in the presence of a protective atmosphere for at least 1 h, and obtaining a foamed carbon electrode loaded with modified tantalum oxide.The present application adopts an impregnation-heat treatment method to prepare a foamed carbon electrode loaded with modified tantalum oxide, and uses a MEC-AnMBR system constructed by the electrode to treat low-intensity municipal wastewater, thereby achieving efficient anaerobic digestion methane production and membrane pollution collaborative control under a full temperature gradient, and providing a low-cost, easily enlarged technical solution for energy self-sufficiency of a wastewater treatment plant.

The present invention relates to a method of reducing methane production in animals of the order artiodactyla, the method comprising administering to the animals one or more compounds or a feed additive comprising the one or more compounds, wherein the one or more compounds are selected from the following general formula (I) or a salt thereof: The present invention also relates to a feed additive comprising the one or more compounds as defined in the present invention and at least one selected from the group consisting of probiotica, bacteria, enzymes (lactate), fatty acids, herbs, spices or essential oils, vitamins, minerals, trace elements, flavour enhancers and preservatives.

This invention relates to the field of agricultural biotechnology, specifically to a rumen methane inhibitory composition for ruminants containing *Asparagus yew* and *Pterostilbene*. The active components of the composition include *Asparagus yew* and its preparations, and *Pterostilbene*, which are used in a predetermined ratio to reduce rumen methane production and alleviate hydrogen accumulation in ruminants.

This invention relates to the field of photocatalytic materials technology, disclosing an atomic-level catalytic material, its preparation method, and its application. The method includes mixing nickel chloride with deionized water to form a solution, adding thiourea and mixing thoroughly to obtain a mixture; ultrasonically treating the mixture and continuously stirring until completely dissolved; drying the dissolved solution in an oven to obtain a solid powder; placing the solid powder in a muffle furnace and calcining it in air, then cooling to obtain the atomic-level catalytic material. This atomic-level catalytic material exhibits a nanoflower-like structure, containing nickel elements distributed in single-atom form, without metal clusters. This invention is applied to the photocatalytic carbon dioxide reduction reaction. The introduction of nickel single atoms promotes the separation and migration of photogenerated charge carriers within the material, causing the carbon dioxide reduction reaction pathway to favor methane production, thus improving the selectivity of the target product in the catalytic reaction.

The invention discloses a method for examining greenhouse gases, and particularly relates to the technical field of greenhouse gases. The greenhouse gas interrogation method comprises the following steps: S1, setting a boundary range: setting a time boundary; organizing a boundary; reporting a boundary; s2, quantitative calculation of emission sources: calculating the greenhouse gas amount of each emission source by adopting an emission factor method, wherein the fixed / mobile combustion source / purchased power emission amount is equal to activity data * fuel emission factors; the domestic sewage CH4 discharge amount = annual BOD total amount * methane production factor; in the breeding process, the CH4 / N2O discharge amount of excrement is equal to the number of livestock and poultry * excrement management discharge factors; performing equivalent conversion by using a global warming potential (GWP) of a sixth evaluation report of the IPCC; s3, data quality management: establishing a 6-level quality scoring system of activity data and emission factors; calculating a data quality total score through a formula; and S4, management in the reference year. According to the greenhouse gas checking method provided by the invention, the calculation error of the discharge amount in the breeding process can be reduced, and the checking precision is improved.

The invention provides a method for controlling membrane pollution of an anaerobic membrane bioreactor and improving methane production performance of the anaerobic membrane bioreactor. According to the method, cationic nano cellulose crystals are added into the anaerobic membrane bioreactor. The method provided by the invention can effectively reduce the content of free flora and organic matters in the supernatant of the anaerobic flocculent sludge mixed solution, improves the characteristics of the anaerobic flocculent sludge mixed solution, further significantly alleviates membrane pollution, prolongs the membrane cleaning period, and finally reduces the energy consumption and operation cost of the anaerobic membrane bioreactor. In addition, the method disclosed by the invention can also optimize the structure and spatial distribution of the microbial community and improve the substance transfer and electronic energy storage of the microbial community, so that the methane yield and content of the anaerobic membrane bioreactor are effectively increased, and the energy consumption of the system is made up.