33 results about "Microbial electrolysis cell" patented technology

The invention discloses a CSTR-based three-dimensional electrode MEC-fluidized bed reactor for anaerobic fermentation of cow dung and application, and belongs to the technical field of microbial electrochemistry. The reactor comprises a reactor main body, a feed port, a discharge port, a gas outlet and a stirring device, an anode and a cathode are arranged in the reactor main body, a conductive three-dimensional particle electrode filler is filled between the anode and the cathode to form a three-dimensional electrode system, and the anode and the cathode are connected with an external power supply. The three-dimensional electrode system is constructed, so that the reaction specific surface area and the electron transfer efficiency are greatly increased, the stimulation effect of a low-voltage electric field is amplified to the whole reaction space, and the technical bottlenecks of low mass transfer efficiency, low methane yield, easiness in system instability and the like in the traditional cow dung anaerobic digestion are solved. Compared with the traditional anaerobic digestion and two-dimensional microbial electrolysis cell, the two-dimensional microbial electrolysis cell disclosed by the invention can obviously improve the methane yield and the system operation stability, and has an excellent engineering application prospect.

The application discloses application of microbial electrochemical coupling anaerobic reaction reinforced biological methane synthesis in carbon neutralization. A microbial electrolysis cell is composed of an anode chamber, a cathode chamber and a proton exchange membrane, the anode chamber and the cathode chamber are connected through the proton exchange membrane, a mixed solution of sewage, ionic liquid and a solution of first methanogenic microorganisms is used as a substrate in the anode chamber, a mixed solution of culture medium, ionic liquid and a solution of second methanogenic microorganisms is used as a substrate in the cathode chamber, under the action of an external power source, the sewage in the anode chamber is degraded to generate electrons and H + , H + CO2 in the cathode chamber is converted into methane under the action of microorganisms; the first ionic liquid or the second ionic liquid is an amino acid anion type ionic liquid. The microbial electrolysis cell is convenient to operate and maintain and has a small floor area.

This invention discloses an anaerobic bio-fermentation process for the targeted degradation of municipal sewage sludge, belonging to the field of sludge treatment technology. The process includes: pretreatment and targeted activation of components; staged hydrolysis and acidification for targeted production of short-chain fatty acids; methanogenic fermentation mediated by conductive materials coupled with a microbial electrolysis cell for assistance; multi-parameter dynamic control based on online monitoring and intelligent algorithms; magnetic separation, recovery, and recycling of magnetic conductive materials; in-situ biogas purification and product gradient reflux; solid-liquid separation and residue resource utilization. This invention achieves kinetic matching and metabolic enhancement of hydrolysis and acidification and methanogenesis through the deep linkage of four modules: targeted hydrolysis and acidification, enhanced direct interspecies electron transfer via a microbial electrolysis cell, magnetic material circulation, and intelligent control. Compared with existing technologies, the methane yield is increased by more than 40%, propionic acid accumulation is below 50 mg / L, the fermentation cycle is shortened to 8-10 days, and system energy consumption is reduced by 20%.

The present invention refers to a method to produce methane or at least one other synthesis product by methanogenic microorganisms in a microbial electrolysis cell (MEC), while applying a separated nutrient feeding supply in a discrete or a continuous manner.

The application discloses a BOD real-time online monitoring device and relates to the technical field of water quality monitoring.The device comprises two monitoring units, each of which comprises a water inlet pump, a biological reactor and a water outlet pump which are sequentially connected through pipelines; the biological reactor is a microbial electrolysis cell; the biological reactor comprises a closed shell, a cylindrical cathode and an anode which is arranged in the cathode are arranged in the shell, and an electroactive biofilm is grown on the anode; the water inlet pump is communicated with a water inlet of the shell, and the water outlet pump is communicated with a water outlet of the shell; a data acquisition module is electrically connected with the cathode and the anode; a data processing module is electrically connected with the data acquisition module; a display screen is electrically connected with the data processing module; and a power supply is used for supplying power to the cathode, the anode, the data acquisition module and the display screen. The application realizes real-time online monitoring of BOD.

The invention relates to a liquid electrode suitable for amplification of a microbial electrolysis cell and a carbon sequestration device of the liquid electrode, and belongs to the field of microbial electrochemical application. The liquid electrode is composed of a solid electrode and humic acid dissolved in a reaction system. As an electron shuttle and a pseudocapacitance energy storage medium, humic acid can efficiently receive electrons from a solid-state electrode and uniformly transmit the electrons to microorganisms in a dissolved state at a long distance in the space of the reactor; therefore, the scale effect problem that the electron transfer efficiency is reduced due to the fact that the size of the microbial electrolysis cell is increased, the electrode distance is increased and the electrode area per unit volume is reduced is fundamentally solved. The carbon sequestration device constructed on the basis of the liquid electrode integrates an autogenous dynamic membrane component taking a stainless steel mesh as a base material and a reverse osmosis product recovery system. The dynamic membrane can effectively intercept humic acid and microorganisms, selectively discharge small molecular products and relieve product inhibition; and the reverse osmosis system realizes high-efficiency recovery and process closed loop of products, and achieves zero emission.

The application discloses a temperature compensation type electrode pluggable microbial electrolysis cell water quality sensing device, which comprises a microbial electrolysis cell, a temperature sensor, an electrochemical workstation and an upper computer. The microbial electrolysis cell adopts a three-electrode system, the electrochemical workstation is used for collecting original current signals related to water quality output by the microbial electrolysis cell and transmitting original electric signal data to the upper computer. The temperature sensor is used for detecting the temperature of a solution in a working electrode area and transmitting a temperature analog signal to a temperature acquisition card for conversion, and transmitting converted digital signals to the upper computer. The upper computer establishes a temperature compensation model based on the characteristics of electrochemical microorganisms, calculates current signals after temperature compensation according to original current signals and measured temperature data, and judges water quality conditions according to the current signals after compensation.

The present application belongs to the cross field of bioelectrochemistry, environment and energy, and particularly relates to a microbial electrolysis cell amplification device integrating sewage treatment and carbon dioxide reduction to acetic acid; the amplification device is composed of a series connection of microbial electrolysis cell small test devices, and electrically active acetic acid-producing bacteria and electric bacteria loaded with high-conductivity nanomaterials and magnetic nanomaterials are respectively modified on the surface of cathode and anode electrodes; the anode electric microorganism decomposes and metabolizes organic matters in sewage to realize sewage treatment; the cathode acetic acid-producing bacteria capture CO2, catalyze CO2, H + and electron into acetic acid to realize carbon dioxide reduction to acetic acid; the microbial electrolysis cell amplification device has simple preparation method, high structural stability, low cost and low energy consumption, can simultaneously realize large-scale sewage treatment and CO2 reduction, provides a new way for domestic sewage and carbon dioxide resource utilization, and has important significance for energy saving and emission reduction and environmental governance.

The invention discloses a method and a device for rapid enrichment culture of salt-tolerant electroactive HNAD target bacteria, and aims to solve the problems of low enrichment efficiency, long screening period and difficulty in pure bacteria separation of salt-tolerant HNAD florae in the prior art. The method is used for rapidly enriching and separating the salt-tolerant electroactive HNAD strain, so that the denitrification performance and the application potential of the strain in a high-salt environment are improved.

The invention discloses a microbial electrolysis cell device and method for purifying phosphorus pollution by utilizing agricultural waste biochar. The device comprises an electrolytic tank main body (1) and a circulating system. The electrolytic tank main body (1) is of a single-chamber structure, and the constant-voltage power supply (12) is connected with the anode bar (2) and the cathode bar (3). And the cathode bar (3) adopts a composite structure of a permeable electrode shell (31) and a biochar electrode (32), so that the electrode is convenient to replace and recycle. The device can be further provided with a monitoring system and a reaction maintaining system, and automatic regulation and control are achieved. The method comprises the steps of microbial inoculation and biofilm formation, pretreatment feeding, calcium source supplementation, electrolytic adsorption coupling phosphorus removal, calcium phosphate recovery and the like, and efficient phosphorus removal and phosphorus resource recovery are achieved through the synergistic effect of electrochemistry and biological adsorption under the condition of low voltage (0.5-1.5 V). The method is suitable for treating multi-source phosphorus-containing wastewater in agriculture, industry, life and the like.

The invention relates to the technical field of anaerobic digestion of crop straw raw materials, and particularly discloses a method for strengthening anaerobic methanation of crop straw based on biological micro-aerobic pretreatment combined with a microbial electrolysis cell. According to the method, crop straw is placed in a closed system added with calcium peroxide (CaO2) and inoculated sludge for biological micro-aerobic pretreatment. A micro-aerobic environment created by CaO2 is utilized to stimulate facultative hydrolytic bacteria to enrich and secrete a large amount of hydrolase, and the lignocellulose structure of the straw is efficiently cracked. After pretreatment, the system is transferred into a microbial electrolysis cell reactor, inhibition of residual oxidizing substances in pretreatment on methanogenic archaea is effectively eliminated by utilizing a cathode reduction effect, and meanwhile, electron transfer and methanogenic metabolism paths of the system are enhanced. Through a coupling strategy of'biological micro-aerobic pretreatment + microbial electrolysis cell ', synergistic improvement of hydrolysis and methanation processes is realized, and an innovative and feasible solution is provided for efficient anaerobic digestion of crop straws to produce methane.

The invention discloses a preparation method of a zirconium-based metal organic framework loaded cobalt-aluminum layered double hydroxide with oxygen reduction, hydrogen evolution and oxygen evolution performances, and the preparation method comprises the following steps: taking a hexagonal cobalt-aluminum layered double hydroxide as a substrate, and fusing an octahedral zirconium metal organic framework to form a unique layered framework heterostructure. The structure is beneficial to enhancing the electrochemical performance and promoting the interaction between the electron active materials. Meanwhile, obvious hexagonal cobalt-aluminum layered double hydroxides exist on the surface of the zirconium-based metal organic framework loaded cobalt-aluminum layered double hydroxides. The observation result proves that the cobalt-aluminum layered double hydroxide is successfully deposited on the zirconium metal organic framework, and the formation of the zirconium-based metal organic framework loaded cobalt-aluminum layered double hydroxide is verified. As a three-function catalyst with efficient catalytic performance in oxygen reduction, hydrogen evolution and oxygen evolution reaction, the material fully shows excellent catalytic performance in practical application of microbial fuel cells and microbial electrolytic cells. The unique structure provides abundant active sites, and the electron transfer rate is obviously enhanced, so that the overpotential of the microbial electrolysis cell is effectively reduced, and the overall energy efficiency and operation stability of the system are improved. The invention provides a key material solution for developing a high-performance and low-cost bioelectrochemical system, and has important significance for promoting the development of a green energy technology and an environment restoration technology.

The invention aims to provide a pretreatment device for synchronously and intensively preparing biodiesel by utilizing microalgae to generate electricity, and belongs to the field of biomass energy production. The invention belongs to a microbial electrochemical coupling system, and adopts a microbial fuel cell (MFC) and a microbial electrolytic cell (MEC) as main structures. Anode microorganisms in the microbial fuel cell MFC take microalgae as a substrate, generate electricity through metabolism, and synchronously transmit electric energy to the microbial electrolytic cell MEC through a series lead to serve as an external power supply of the microbial electrolytic cell MEC; during continuous operation, algae liquid is fed into the MEC under the rate control of the pump, the MEC realizes microalgae wall breaking pretreatment through electric fermentation, and grease extraction is enhanced. According to the invention, the dependence of the traditional MEC process on external energy is broken through, the self-production and self-use of the capacity of the device are realized, the manual requirement for replacing the anolyte can be effectively reduced, and the microalgae biodiesel preparation pretreatment under continuous operation is realized.

The invention discloses a microbial electrolysis cell of a graphene electrode and a riverway in-situ remediation method of the microbial electrolysis cell, and belongs to the technical field of biological electrolysis cells. The microbial electrolysis cell is provided with a graphene-coated bimetallic oxide array electrode, a titanium mesh is used as an electrode substrate, an electro-catalytic material is Graphene-coated NiO / ZnO, and the surface of the electrode is of a three-dimensional space structure. The microbial electrolysis cell is applied to in-situ remediation of a water body in a riverway. When the microbial electrolysis cell is used for repairing the river water body, the microbial electrode is beneficial to rapid formation of a biological membrane, and a large number of microorganisms are accumulated on the surface of the electrode in the wastewater treatment process; meanwhile, the graphene and bimetallic coupling electrode reduces the overpotential required by oxidation reduction of pollutants in wastewater. The metabolism of the electroactive microorganisms on the surface of the electrode is promoted by a proper external power supply, so that the overall efficiency of the microbial electrode disclosed by the invention is greatly improved.

The present application relates to a kind of method for improving the performance of microbial electrolysis cell biological cathode methane production, comprising the following steps: (1) biological cathode multi-stage culture;(2) mature biological cathode multi-substrate metabolism;(3) microbial electrolysis cell energy synthesis optimization;(4) stable microbial electrolysis cell system operation.Compared with the prior art, the present application takes biological cathode as the core functional area of methane production, and aims at the key links involved in the stable operation of biological cathode culture, such as microbial enrichment, substrate metabolism strengthening, energy synthesis optimization, etc., and creatively proposes integrated strengthening technology.Compared with the existing technology which takes electrode material improvement and electron transfer promotion as the core, the present application cuts in from the core link directly related to methane production function, more accurately improves the ability and efficiency of biological cathode methane production metabolism, can effectively improve the performance of microbial electrolysis cell methane production, and can be used to meet the needs of biogas upgrading and carbon dioxide fixation, etc.

The invention provides a directional conversion method and device for chemical potential of sewage and a server, and relates to the technical field of crossing of environmental protection and new energy technology.The directional conversion method comprises the steps that chemical potential enrichment treatment is conducted on influent COD, and an energy-rich matrix is obtained; temperature control treatment and microorganism order reduction treatment are carried out on the exogenous organic waste and the energy-rich matrix through the directional conversion unit, crude biogas and supernate are obtained, the supernate is degraded through the microorganism electrolytic tank, and hydrogen is generated; through the combined heat and power generation unit, crude biogas is used for power generation treatment and heat recovery treatment to execute self-energy supply, and through the energy management and output unit, the crude biogas, hydrogen and residual electric energy and heat energy after self-energy supply are subjected to intelligent scheduling treatment to obtain a target energy scheduling strategy. And performing collaborative management of the heterogeneous energy after directional conversion according to the target energy scheduling strategy. The comprehensive recovery rate of the sewage can be obviously improved.

The invention provides a foamed nickel surface treatment method, a prepared product and application of the product. The preparation method comprises the following steps: spraying a mixed solution of nano Fe3O4, carboxylated multi-walled carbon nanotubes and Nafion on the front and back surfaces of foamed nickel, drying for 5-7 hours, repeating the operation for multiple times, and drying at room temperature to obtain the nano Fe3O4 and carboxylated multi-walled carbon nanotube modified foamed nickel. The foamed nickel, the nano Fe3O4 and the carboxylated multi-walled carbon nanotubes used in the method are low in cost, and a loading method and a spraying method used in the method are simple, convenient and rapid. In addition, due to the porous structure of the foamed nickel, the loaded Nafion-carboxylated multi-walled carbon nanotubes and a foamed nickel framework can form a compact conductive network, and the nano Fe3O4 is an indispensable efficient hydrogen evolution active site in the network. Therefore, due to high conductivity, stability, high specific surface area and high hydrogen evolution activity, catalytic hydrogen evolution and methane production at the cathode of the anaerobic methanogenesis microbial electrolysis cell can be promoted.

The present application relates to the environmental protection treatment of poultry manure, in particular to a process for stabilizing an anaerobic fermentation system, the present application collects the manure with a total concentration of 6% concentration, carries out anaerobic fermentation, improves the types of antibiotics, promotes the activity of hydrogenophilic methanogen flora, and improves the electrode material of microbial electrolysis cell, so that the obtained anaerobic fermentation system is not only high in stability, but also rich in methane production.

This invention relates to the field of wastewater treatment equipment technology, specifically to a microbial electrolysis wastewater treatment device, comprising: an overflow treatment component including a stepped overflow tank, wherein a pre-electrolysis tank, a microbial tank, and a secondary electrolysis tank are sequentially separated along the overflow direction by vertically arranged overflow plates within the stepped overflow tank; electrode tanks are separated on both sides of the pre-electrolysis tank and the secondary electrolysis tank by side partition plates, and conductive mesh plates for connecting the two side tanks are installed on the side partition plates; anode plates for electrolyzing wastewater by connecting to an external power source are respectively installed in the electrode tanks on both sides; this device innovatively features a multi-stage overflow arrangement of pre-electrolysis tanks, microbial tanks, and secondary electrolysis tanks, enabling synergistic treatment of electrolysis and microorganisms, allowing for pretreatment of complex wastewater, which helps to ensure microbial activity and achieve reliable and continuous wastewater treatment function and effect.

The application discloses a kind of enhanced denitrification device and method of biological electrochemical energy self-circulation under wet-dry alternation, and it relates to rainwater treatment technical field, device includes biological retention area and automatic control module;Biological retention area from bottom to top includes gravel drainage layer, filler layer, soil layer, water storage layer in sequence;First electrode is arranged in filler layer, and second electrode is arranged in soil layer;Automatic control module includes soil humidity sensor, super capacitor, LOGO controller, double-pole double-throw relay, voltage module, solar cell panel and battery.The device is used in the present application to promote the decomposition of organic matter and generate bioelectricity using microbial fuel cells during drought period, and to strengthen electron transfer denitrification by coupling microbial metabolism using microbial electrolysis cell with an external voltage during rainfall period, achieving efficient denitrification of the system by various measures.

The invention discloses a method for removing florfenicol by using an iron-doped biochar reinforced microbial electrolysis cell, which is characterized in that florfenicol in a water body is removed by using the microbial electrolysis cell, and a carbon-based material loaded with iron-doped biochar is used as a cathode in the microbial electrolysis cell. In the invention, the carbon-based material loaded with the iron-doped biochar is used as the cathode, so that the specific surface area and roughness of the electrode can be remarkably increased, florfenicol can be degraded by utilizing different functional microorganisms, and the carbon-based material can be used as an electron mediator to promote extracellular electron transfer between the cathode and the microorganisms, so that the efficient removal of florfenicol is facilitated; the method is used for reducing and degrading florfenicol in a water body, can quickly reduce florfenicol into low-toxicity products, can realize quick removal of florfenicol, has the advantages of simple process, low cost, low energy consumption, high treatment efficiency, good removal effect and the like, is a green technology capable of efficiently treating florfenicol-polluted wastewater, is high in use value and has wide application prospects. The application prospect is good.

The invention discloses a method for recovering phosphorus in sewage and producing hydrogen by using a magnesium-air fuel cell, which effectively realizes the purpose of balancing pH stability, and comprises the following steps: S1, using the magnesium-air fuel cell, enabling a magnesium anode of the magnesium-air fuel cell to generate an oxidation reaction to release magnesium ions, and enabling an air cathode of the magnesium-air fuel cell to generate a reduction reaction to generate hydroxyl ions; s2, transmitting the electric energy generated by the magnesium air fuel cell to a sewage treatment system; s3, mixing water flow rich in the magnesium ions and the hydroxyl ions in the step S1 with sewage rich in phosphate radicals to form phosphorus-containing crystal precipitates insoluble in water; the method has the advantages that the structure is novel, the conception is ingenious, the operation is simple and convenient, the dependence on an external buffer agent is effectively reduced, the aims of pollutant treatment, phosphorus recovery and hydrogen production are fulfilled, Mg < 2 + > and OH <-> are used for replacing all purchased magnesium salts and alkaline agents, and the maximum cost item in the phosphorus recovery process is reduced.

A microbial electrolysis cell has a plurality of flexible layers each separated by an inter- layer distance. At least some of the inter-layer distances are configured to decrease in response to a compressive force applied to the microbial electrolysis cell. At least one of the plurality of flexible layers is a resilient material configured to partially resist compression of the microbial electrolysis cell by the compressive force such that a minimum inter-layer distance between at least some of the plurality of flexible layers is substantially maintained. A tank for wastewater treatment immerses one or more of the microbial electrolysis cells in wastewater and applies the compressive force to the one or more microbial electrolysis cells.

The invention discloses a hydroelectric generation constructed wetland microbial electrolysis cell device in the field of sewage treatment, which comprises a wetland pool filled with wetland filler and provided with a water inlet pipe and a water outlet pipe at two ends respectively; the power generation assembly is arranged at the water inlet pipe and the water outlet pipe and realizes power generation through kinetic energy of water flowing; the conductive decontamination unit is arranged at the bottom of the wetland pool and is electrically connected with the power generation assembly through the charging and discharging module, after the conductive decontamination unit is electrified, the activity of conductive microorganisms is improved, decontamination of the wetland pool is achieved, the power generation assembly is also made of a conductive material, and the power generation assembly, the conductive decontamination unit and the charging and discharging module jointly form a microbial electrolysis cell system; the wetland plants are planted on the wetland filler and are used for promoting degradation of microorganisms in the wetland; the wetland system has the beneficial effects that the power generation waterwheel is arranged, power is generated through kinetic energy of a water body and stored and released, so that the wetland system becomes a microbial electrolysis cell system, and the power generation waterwheel is not limited by sunlight and time and can be continuously used.

The application provides a sewage chemical potential directional conversion method, device and server, relates to the technical field of environmental protection and new energy technology, and comprises the following steps: carrying out chemical potential enrichment treatment on the COD of the influent to obtain an energy-rich substrate; performing temperature control treatment and microbial degradation treatment on the exogenous organic waste and the energy-rich substrate through a directional conversion unit to obtain crude biogas and supernatant, and degrading the supernatant through a microbial electrolysis cell to generate hydrogen; performing power generation treatment and heat recovery treatment on the crude biogas through a cogeneration unit to perform self-energy supply, and intelligently scheduling the crude biogas, hydrogen, and the residual electric energy and heat energy after self-energy supply through an energy management and output unit to obtain a target energy scheduling strategy, so that the collaborative management of various heterogeneous energies after directional conversion is performed according to the target energy scheduling strategy. The application can significantly improve the comprehensive recovery rate of sewage.

A microbial electrolysis cell is formed from a plurality of layers that are sealed together (using, for example, heat sealing, ultrasonic sealing or adhesive) to form a gas-tight pouch. A plurality of pouches can be stacked together in a tank with anodes interleaved between neighbouring pouches.

The application discloses a modification method of a stainless steel mesh cathode and application of the stainless steel mesh cathode in microbial electrolytic cell sewage phosphorus recovery, and belongs to the field of sewage phosphorus recovery. The modification method of the stainless steel mesh cathode comprises the following steps: taking a stainless steel mesh as a cathode, and adopting an electrodeposition method to prepare a Ni-Co-Sn modified stainless steel mesh cathode; and the electrolyte used in the electrodeposition method comprises sodium citrate, nickel sulfate, cobalt sulfate, stannous sulfate, boric acid and sodium chloride. The method selects a cheap and more beneficial to the attachment of struvite crystallization stainless steel mesh as a cathode, modifies the stainless steel mesh cathode by using nickel cobalt tin, enhances the phosphorus recovery rate by improving the hydrogen evolution performance, shortens the reaction time, and achieves the purpose of obtaining a high phosphorus recovery rate in a short time.

The invention relates to the technical field of sewage treatment devices, in particular to a microbial electrolytic tank sewage treatment device which comprises an overflow treatment assembly, a sewage treatment assembly and a sewage treatment assembly, the overflow treatment assembly comprises a stepped discharge tank, and the interior of the stepped discharge tank is sequentially partitioned into a pre-electrolytic tank, a microbial tank and a secondary electrolytic tank through vertically-arranged overflow plates in the overflow direction; the two sides of the pre-electrolytic tank and the two sides of the secondary electrolytic tank are partitioned into polar plate tanks through side partition plates, and the side partition plates are provided with conducting net plates for conducting tank chambers on the two sides; an anode plate and a cathode plate which are used for electrolyzing sewage by an external power supply are respectively arranged in the polar plate pools on the two sides; the device is creatively provided with the pre-electrolytic tank, the microbial tank and the secondary electrolytic tank which are arranged in a multi-stage overflow manner, so that the electrolysis and microbial cooperative treatment function can be realized, the complex sewage can be pretreated, the microbial activity can be guaranteed, and the reliable and continuous sewage treatment function and effect can be obtained.

The application discloses a water quality anomaly detection method based on dynamic window correlation test and feature fusion, which comprises the following steps: injecting non-toxic water samples into microbial electrolysis cells MEC1 and MEC2 respectively, and obtaining current time series data MEC1-DB1 and MEC2-DB1 output by the microbial electrolysis cells MEC1 and MEC2 respectively; injecting a water sample to be detected into the microbial electrolysis cells MEC1 and MEC2, and obtaining current time series data MEC1-ST1 and MEC2-ST1 output by the microbial electrolysis cells MEC1 and MEC2; performing correlation test on the MEC1-DB1, MEC2-DB1, MEC1-ST1 and MEC2-ST1 to obtain current time series data correlation coefficients, calculating the maximum value of the four current time series data correlation coefficients according to the correlation coefficients; calculating a correlation determination coefficient according to the maximum value of the current time series data correlation coefficients; performing statistical analysis on the correlation determination coefficient to obtain a water quality anomaly determination threshold; and determining whether the water quality is abnormal according to the size relationship between the correlation determination coefficient and the water quality anomaly determination threshold.

The invention relates to a method for treating high-nitrogen phenolic wastewater by coupling a microbial electrolysis cell with anaerobic ammonia oxidation, which comprises the following steps: S1, constructing a microbial electrolysis cell reactor with a single reaction chamber, placing an anode and a cathode of the reactor in the same reaction chamber, and inoculating activated sludge containing anaerobic ammonia oxidation bacteria in the reactor; s2, performing toxicity domestication on the activated sludge; s3, high-nitrogen phenolic wastewater is introduced into the reactor, voltage is applied to the anode and the cathode through an adjustable direct-current stabilized power supply, and denitrification and phenol degradation are synchronously achieved through coupling of the microbial electrolysis cell and the anaerobic ammonia oxidation reaction. Compared with the prior art, the method has the advantages that the single-reaction-chamber microbial electrolytic tank is coupled with the anaerobic ammonium oxidation process, targeted phenol toxicity domestication is carried out on anaerobic ammonium oxidation bacterium activated sludge, and voltage is applied to enhance the microbial activity, so that high-nitrogen phenol-containing wastewater denitrification and phenol degradation are synchronously carried out, and an external carbon source and aeration are not needed; the domestication period is short, and the pollutant removal efficiency is high.