180 results about "Anaerobic microorganisms" patented technology

The invention discloses a method for enhancing the performance of methane synthesis through CO2 microbial electrochemical conversion based on quorum sensing, which comprises the following steps: adding an exogenous quorum sensing signal molecule octanoyl-L-homoserine lactone C8-HSL into a cathode chamber of a microbial electrolysis cell MEC, firstly inoculating an aqueous solution containing anaerobic microorganisms into the cathode chamber, and domesticating; forming a cathode biological membrane on the cathode electrode as a biological cathode; and then under the conditions that the cathode liquid in the cathode chamber is subjected to aeration of high-purity CO2 and quorum sensing signal molecules are added, a direct-current power supply provides external voltage to carry out a reaction for synthesizing methane by electrochemical conversion of CO2. According to the method for improving the performance of synthesizing methane from CO2 by adding the exogenous quorum sensing signal molecules into the culture medium of the microbial electrosynthesis system, the addition of the signal molecules not only can promote the growth of a biological membrane, improve the stability of the biological membrane and shorten the starting time of a reactor system, but also can directionally regulate and control florae and improve the abundance of the florae; meanwhile, the methane yield of the system is improved.

The invention discloses an anaerobic microorganism fermentation device, and relates to the technical field of anaerobic microorganism fermentation, the anaerobic microorganism fermentation device comprises a fermentation assembly, the outer surface of the fermentation assembly is provided with a detection assembly; when the air purifier is used, aerobic gas is discharged through the gas outlet pipe and the diffusion pipe, the oxygen content is detected by the oxygen sensor, and when it is detected that the discharged aerobic gas is discharged, the gas enters the air purifier through the connecting pipe and the fixing pipe under the action of the flow guide plate to be subjected to air purification treatment. When oxygen-free gas is detected, the PLC can control the gas injection valve to be closed, a first electric one-way valve and a forward and reverse motor are started, the forward and reverse motor drives a rotating rod, a sealing plate and a sealing ring to rotate anticlockwise, a connecting pipe is blocked, and a flow guide plate guides the oxygen-free gas into a recycling pipe. The oxygen-free gas enters the fermentation tank again through the conveying pipe, the annular pipe, the gas inlet pipe and the gas injection pipe, waste of the oxygen-free gas is reduced, and the use efficiency is improved.

The utility model relates to the technical field of microorganism culture, and discloses an anaerobic microorganism shaking culture device which comprises a culture box, a motor is fixedly connected to the bottom of the inner side of the culture box, a shaking plate is arranged above the culture box, a clamping assembly is arranged in the shaking plate, a culture bottle is arranged in the clamping assembly, and the culture bottle is arranged in the culture box. A shaking assembly is arranged in the incubator and comprises a rotating shaft rotationally connected between the inner walls of the incubator, gears are fixedly connected to the surfaces of the two ends of the rotating shaft, sliding grooves are formed in the two sides of the inner walls of the incubator, sliding blocks are slidably connected into the sliding grooves, and racks are fixedly connected to the other ends of the sliding blocks. The bottoms of the racks are fixedly connected with connecting plates, and a connecting rod is fixedly connected between the two connecting plates. According to the utility model, through the arrangement of the shaking assembly, the shaking amplitude of the culture bottle is adjusted, and the requirements of different users can be met.

The invention discloses a sewage zero discharge treatment device which comprises a sewage treatment tank, a first partition plate, a second partition plate, a third partition plate and a fourth partition plate are arranged in the sewage treatment tank, a closed area between the third partition plate and the fourth partition plate forms a collection pool, and a rotating magnetic field device is arranged on the periphery of an anaerobic pool. The rotating magnetic field device generates a rotating magnetic field, ferroferric oxide nanoparticles with the surfaces modified with sulfonic acid groups exist in the anaerobic tank, the ferroferric oxide nanoparticles have superparamagnetism and are driven by the rotating magnetic field to form a directional vortex flow, and the ferroferric oxide nanoparticles adsorb protons and load anaerobic microorganisms. A magnetic biological membrane is formed, meanwhile, the mixed mass transfer efficiency of microorganisms and sewage is enhanced through the directional vortex flow, an ultrasonic vibrator array is arranged at the bottom of the aerobic tank, and a collecting device is arranged above the sewage treatment tank.

Provided is an anaerobic digestion process monitoring system that predicts the amount of biogas generation with high accuracy even when the activity of anaerobic microorganisms in a digestion tank changes. The present invention is provided with: a first sensor (4) for measuring the amount of organic waste fed into a digestion tank (2) and outputting load data as the measurement result; a second sensor (5) for measuring the property of the fermentation broth inside the digestion tank (2) and outputting fermentation broth property data as the measurement result; a preprocessing unit (12) that uses the first estimation model to obtain estimated activity index data indicating the degree of activity of the anaerobic microorganisms from the load data and the fermentation broth property data; and a gas generation amount prediction unit (13) that uses the second estimation model to obtain a biogas generation amount predicted value from the load data, the fermentation broth property data, and the estimated activity index data.

The invention provides a method for improving the efficiency of an anaerobic membrane bioreactor and relieving membrane pollution by pyrolytic carbon, in the starting stage of the anaerobic membrane bioreactor, a conductive material SC is added into the reactor for anaerobic digestion reaction, and the conductive material SC is a carbon material which is obtained by heating and pyrolyzing sodium citrate and has a honeycomb structure. According to the scheme, SC is used as a conductive carrier in the anaerobic membrane bioreactor, and the anaerobic digestion reaction is promoted by combining the synergistic effect of a magnetic stirring system and a gas circulating pump. Experimental results show that the conduction characteristic of SC can effectively promote electron transfer and enhance the metabolic activity of anaerobic microorganisms, so that the degradation capacity of pollutants is improved, membrane pollution is effectively slowed down, the service life of a membrane assembly is remarkably prolonged to 6 times of the original service life, and the yield of CH4 is increased to 1.39 times.

The resource utilization type sewage treatment equipment comprises a box body internally provided with a containing cavity, the box body is provided with a water inlet and a water outlet, three partition plates are arranged in the containing cavity at intervals, and the containing cavity is divided into a primary sedimentation tank, an anaerobic fermentation tank, a sludge fermentation tank and a reuse water storage tank which are sequentially communicated. According to the utility model, the accommodating cavity is divided into the primary sedimentation tank, the anaerobic fermentation tank, the sludge fermentation tank and the recycled water storage tank which are sequentially communicated through the three partition plates, large-particle impurities in sewage are subjected to hydrolytic acidification and sedimentation in the unit through the primary sedimentation tank, and then microorganism-attachable suspended filler is added through the anaerobic fermentation tank; the acidified and hydrolyzed sewage is deeply fermented and decomposed by anaerobic microorganisms in the area and is further purified. And the sludge fermentation tank is divided into an anaerobic sludge fermentation zone, a three-dimensional filter material microbial reaction zone, a microporous ceramsite adsorption zone and gravel filtration plant absorption from bottom to top, so that the ultimate purification of water quality is achieved.

The utility model discloses an agricultural sludge anaerobic digestion treatment device, and relates to the technical field of sludge anaerobic digestion treatment devices. The agricultural sludge anaerobic digestion treatment device comprises a bottom plate, a control box and an anaerobic digestion reactor, a crushing mechanism is arranged at the top of the bottom plate, an extrusion mechanism is arranged on the surface of the crushing mechanism, and extraction assemblies are arranged on the top of the bottom plate, the surface of the crushing mechanism and the surface of the anaerobic digestion reactor. According to the anaerobic digestion reactor, massive sludge is crushed through the extrusion mechanism, the sludge is crushed into smaller particles through the crushing mechanism, the decomposition effect of anaerobic microorganisms is facilitated, and the sludge crushed in the crushing mechanism is extracted into the anaerobic digestion reactor through the extraction assembly; and organic matters are easier to degrade by microorganisms after the sludge is crushed, so that more biogas can be generated, the particle size can be reduced by crushing the sludge, the blocking risk is reduced, and the stable operation of the system is ensured.

The utility model provides a cleaning device for suspended matters in anaerobic fermentation treatment, which comprises a shell, an interlayer arranged on the shell, a slag bearing device arranged at the bottom of the interlayer, a rotary cleaning device arranged on the slag bearing device, a slag collecting box arranged at the bottom of the slag bearing device, tracks arranged on two sides of the slag collecting box, each track comprises a sliding block and a sliding rail, and the sliding blocks are mounted on the slag collecting box. And due to the application of the slag bearing device, the cleaning device and the slag collecting box, impurities in the shell can be timely and repeatedly discharged, and the phenomena that pipelines and equipment are blocked and the operation of the device is influenced due to the fact that the impurities of suspended solids and grease substances are not cleaned for a long time are avoided. Meanwhile, the phenomena of impurity crusting, negative influence on the quality of biogas slurry, influence on the activity of anaerobic microorganisms and reduction of the fermentation efficiency are avoided, the gas production efficiency is improved, and the method has a relatively high popularization value.

The invention relates to the technical field of sewage treatment, in particular to a method for rapidly measuring BOD (Biochemical Oxygen Demand) in sewage treatment. According to the method, under the anaerobic condition, facultative anaerobic microorganisms are subjected to denitrification reaction by utilizing organic matters and nitrate nitrogen in a water sample to be detected, in the process, the organic matters are oxidized into carbon dioxide and water by utilizing atomic oxygen in the nitrate nitrogen, and the nitrate nitrogen is reduced into nitrite nitrogen or nitrogen; in the process, the reduction amount of the oxygen element in the reaction system before and after the reaction is the BOD of the water sample to be detected. Compared with traditional BOD5, the method disclosed by the invention is shorter in time consumption and greatly improves the detection efficiency, and meanwhile, compared with an aerobic method during BOD5 measurement, the method disclosed by the invention effectively avoids the oxygen consumption of aerobic proliferation of microorganisms in the process, so that the detection accuracy is improved, and the method is convenient to popularize and use.

The present application relates to a kind of high alkalinity wastewater pre-acidification treatment method and its processing device system, the treatment method includes: the nutrient substance is added to the wastewater to be treated and is adjusted to obtain adjusted water;Part of the adjusted water is returned to adjust and handle, another part is added to the nutrient substance and is pre-acidification treatment, obtain pre-acidification water;Pre-acidification water is treated by anaerobic purification, obtain anaerobic purification water;Anaerobic purification water is treated by aeration and sedimentation in turn, obtain treated water.The treatment method and its processing device system provided by the present application can regulate the metabolic activity of microorganism, reduce the inhibitory effect of wastewater alkalinity and metal ions on anaerobic microorganism, improve the anaerobic removal rate of anaerobic purification treatment, reduce the adding cost of acidic substance and nutrient substance.

The invention discloses a UASB (Upflow Anaerobic Sludge Blanket) wastewater treatment method. The method comprises the following steps: wastewater pretreatment; treating with a multi-stage UASB reactor; performing electrochemical oxidation treatment; product collection and biogas recovery; and post-treating the wastewater. Through the multi-stage UASB reactor system, the wastewater treatment efficiency and the biogas yield can be remarkably improved, and each stage of reactor runs under different operation conditions to adapt to the characteristic change of the wastewater, so that the problem of load fluctuation when a single-stage reactor is used for treating the high-concentration organic wastewater can be effectively solved; the stability and the impact resistance of the system are enhanced; before wastewater enters the first-stage UASB reactor, a heat exchanger is used for preheating the wastewater so as to improve the activity and degradation efficiency of anaerobic microorganisms and ensure the reaction effect, meanwhile, a plurality of reaction sections are arranged in the first-stage UASB reactor, each section has different sludge concentration and flow velocity, gradient flow is formed, degradation of different organic matters is promoted, and the wastewater treatment effect is improved. The wastewater treatment effect is further ensured.

The invention discloses a daily chemical wastewater treatment method which specifically comprises the following steps: S1, carrying out anaerobic microorganism decomposition on daily chemical wastewater to remove most pollutants in the daily chemical wastewater so as to obtain pretreated wastewater; s2, mixing the pretreated daily chemical wastewater with ozone to obtain wastewater dissolved with ozone; and S3, conveying the ozone-dissolved wastewater into an ozone biological activated carbon reactor (9), decomposing organic matters in the wastewater, precipitating and discharging. According to the invention, the biodegradability of the wastewater can be improved, the additional addition of chemicals can be realized, the generation of sludge is greatly reduced, and the operation cost is reduced.

The present application relates to the organic wastewater and greenhouse gas carbon dioxide resource utilization, biological energy and biological electrochemical engineering cross technical field, disclose a kind of system and method for preparing middle chain fatty acid and sustainable aviation fuel in cooperation, system with organic wastewater as carbon source and electron donor, short-chain organic acid is converted into middle chain fatty acid by anaerobic microorganism carbon chain extension reaction, and is separated in situ by liquid membrane extraction and enriched;Enriched product is introduced into microbial electrosynthesis reactor, and further carbon chain extension is carried out by anode Kolbe electrolysis catalysis, and C10-C14 sustainable aviation fuel is prepared;Carbon dioxide is used as carbon source in cathode, and is converted into acetic acid by microbial catalysis, and carbon chain extension is carried out again by co-fermentation with organic wastewater.The present application realizes the synergic integration of organic wastewater treatment, carbon dioxide resource utilization and high value-added fuel preparation, and has high resource utilization degree, high carbon utilization efficiency and significant environmental benefits.

The invention relates to a wheat straw rapid biodegradation device which comprises a compaction box with two open ends, a support and a smashing box with a feeding hopper and a discharging hopper, the compaction box and the smashing box are connected through the support, the discharging hopper is arranged at the lower end of the smashing box, a driving part is arranged on the outer side wall of the smashing box, and the driving part is arranged on the lower end of the smashing box. A crushing shaft extending into the crushing box is arranged at the output end of the driving part, and a plurality of crushing cutters are arranged on the crushing shaft; a receiving hopper corresponding to the discharging hopper is arranged at the upper end of the compaction box, and a push plate is horizontally and slidably connected to the interior of the compaction box; after straw is smashed through the smashing cutter, the straw is pushed to the discharging end of the compaction box through the push plate, the straw is gradually extruded and compacted in the moving process, the compacted straw is discharged from the discharging end, the air permeability of the straw is reduced, the oxygen content is reduced, water loss in the straw in the degradation process is reduced, and the degradation efficiency is improved. Favorable conditions are provided for growth and activity of anaerobic microorganisms, and the degradation speed of the microorganisms on the wheat straw is increased.

An anaerobic digestion process monitoring system can accurately predict the amount of biogas produced even when the activity of anaerobic microorganisms in a digester fluctuates. The system comprises: a first sensor (4) for measuring the amount of organic waste fed into a digester (2) and outputting load data as a measurement result; a second sensor (5) for measuring the properties of a fermentation liquid inside the digester (2) and outputting fermentation liquid property data as a measurement result; a preprocessing unit (12) for calculating estimated activity index data indicating the activity of anaerobic microorganisms based on the load data and the fermentation liquid property data using a first estimation model; and a gas production prediction unit (13) for calculating a predicted value of biogas production based on the load data, the fermentation liquid property data, and the estimated activity index data using a second estimation model.

The invention discloses a rice blast-resistant rice crossbreeding device and method, and relates to the technical field of rice crossbreeding, the rice blast-resistant rice crossbreeding device comprises a cylinder, a fixing ring is fixedly connected in the cylinder, a plurality of supporting rings are arranged in the fixing ring, and a through groove is formed in the inner wall of the top of each supporting ring; the outer sides of the supporting rings are fixedly connected with middle plates, the two ends of each middle plate are fixedly connected with the two adjacent supporting rings correspondingly, and supporting assemblies are arranged in the supporting rings. According to the rice blast-resistant rice crossbreeding device and method, air in the conical barrel can be continuously exchanged with the outside through holes among the supporting rings, sufficient oxygen is provided for seed germination and root growth, breeding of anaerobic microorganisms is effectively inhibited, the risk of seed rotting and root rotting is reduced, and meanwhile, the yield of the rice blast-resistant rice is increased. A stable distance is formed between the bottom of the conical barrel and the water liquid level through the supporting structure of the upper and lower double circular plates, and seeds can be concentrated in the conical barrel and stably make contact with water.

The invention discloses an integrated anaerobic digestion membrane bioreactor, which effectively achieves the purpose of conveniently backwashing a filter membrane, and comprises an anaerobic digestion reactor for storing anaerobic microorganisms, the feed end of the anaerobic digestion reactor is connected with a batching tank, and the feed end of the batching tank is connected with an anaerobic digestion reactor. The discharging end of the anaerobic digestion reactor is connected with a filtering mechanism used for solid-liquid separation, the filtering mechanism sequentially comprises a feeding part, a filtering part and a discharging part which are communicated with one another from bottom to top, the interior of the filtering part is detachably connected with a filtering box, and the interior of the filtering box is detachably connected with a plurality of filtering assemblies. The device is ingenious in conception and simple and convenient to operate, effectively facilitates disassembly, assembly and maintenance of workers, facilitates thorough cleaning of the interior of the filter box by the workers, facilitates pipeline connection of different reaction procedures, can automatically clean a filter membrane, facilitates disassembly and assembly of the whole device, and improves the working efficiency. And the back-washed reactants can be conveniently discharged.

The invention discloses a sludge circulating membrane biological sewage treatment device and method. Comprising a cylindrical shell, and four annular galleries are coaxially arranged in the cylindrical shell; a treatment tank is arranged in the middle of the fourth annular gallery in the center; an anaerobic zone and an anoxic zone are arranged in the first annular gallery positioned on the outer side; the first aerobic zone is positioned in the second annular gallery; the second aerobic zone is positioned in the third annular gallery; the third aerobic zone is positioned in the fourth annular gallery; the MBR pre-anoxic zone is arranged in the treatment tank; the first annular gallery and the second annular gallery at the tail end of the anoxic zone are communicated through a through-wall pipe; the second annular gallery, the third annular gallery and the fourth annular gallery are communicated through wall penetrating pipes. The MBR pre-anoxic zone is arranged to replace a traditional secondary sedimentation tank, dissolved oxygen and nitrate nitrogen in returned sludge are partially consumed in the MBR pre-anoxic zone, the influence on anaerobic microorganisms in the anaerobic zone is reduced, and meanwhile, the occupied area of sewage treatment equipment can be saved.

The utility model relates to the technical field of edible mushroom processing, and discloses a sterilizing device for edible mushrooms, which comprises a bearing mechanism and a sterilizing mechanism, the sterilizing mechanism is fixedly connected inside the bearing mechanism, the sterilizing mechanism comprises a sterilizing unit and a limiting unit, the sterilizing unit is fixedly connected inside the bearing mechanism, and the limiting unit is fixedly connected inside the bearing mechanism. And the limiting unit is arranged in the degerming unit. According to the sterilization device for the edible mushrooms, through a vibration machine and a vibration head in the limiting unit, edible mushroom materials in the bearing disc vibrate in the sterilization process, the stacking and shielding state of the materials at the top and the bottom in a traditional container is broken, and irradiation of an ultraviolet sterilization lamp can be more uniform; air in the inner shell can be exhausted through the air exhauster in the sterilization unit, a low-oxygen environment is formed, on one hand, anaerobic microorganism breeding is inhibited, on the other hand, interference of air on ultraviolet diffusion is reduced, and the ultraviolet rays cover the surface of the material more evenly.

The application discloses an oil agent equipment cleaning waste liquid treatment device and method, and relates to the field of oil agent waste liquid treatment. The device comprises an electric field demulsification mechanism in communication with a waste liquid pipe, wherein a pulse electrode is arranged in the electric field demulsification mechanism, a composite reactor is arranged on the downstream side of the electric field demulsification mechanism, an anaerobic bacteria area, a lower grid, a transverse partition plate, an upper grid and an aerobic bacteria area are arranged from bottom to top in the electric field demulsification mechanism, and the electric field demulsification mechanism is further provided with an aeration assembly, a monitoring and shunting system and a gas collecting mechanism. The treatment method comprises the following steps: electric field demulsification pretreatment, aeration, aerobic / anaerobic microbial degradation, multi-parameter monitoring and shunting treatment. According to the application, secondary pollution is avoided through pulse electric field demulsification, pollutants are degraded in stages by using an anaerobic-aerobic linkage circulation structure, real-time monitoring and intelligent shunting are combined, and the treatment efficiency is improved and the operation cost is reduced.

The utility model discloses an efficient and energy-saving slaughter wastewater treatment system, and belongs to the technical field of sewage treatment. The efficient and energy-saving slaughter wastewater treatment system comprises a water collecting tank, an anaerobic tank, an adjusting tank and a secondary sedimentation tank which are communicated in sequence, a sludge return pipeline communicated with the anaerobic tank is arranged on the regulating tank, and a first aerobic tank and a second aerobic tank which are connected in parallel are arranged between the regulating tank and the secondary sedimentation tank through a pipeline. According to the utility model, the anaerobic tank is adjusted to the front end of the adjusting tank, so that effluent of the water collecting tank firstly enters the anaerobic tank, granular COD (Chemical Oxygen Demand) can be well prevented from being deposited at the bottom of the adjusting tank, a carbon source can be utilized to the greatest extent, the total tank volume is effectively reduced, and the water tank volume and the construction cost are reduced; anaerobic microorganisms in the regulating tank are accumulated and flow back to the anaerobic tank, so that the anaerobic treatment efficiency is greatly improved. According to the utility model, the denitrification efficiency can be effectively improved, the addition of an external carbon source is reduced by reasonably utilizing the own carbon source in the sewage, and the purposes of reducing cost and saving energy are achieved.

Agents, kits, and methods that utilize oxygenation to treat Inflammatory Bowel Disease (IBD) and / or provide prophylaxis against exacerbation of IBD are provided. In several embodiments, the agents, kits, and methods according to several embodiments generate in, or carry to, oxygen in the intestinal lumen to treat IBD and provide prophylaxis against exacerbation of IBD, including those caused by the presence of anaerobic bacteria in the intestine. The agents, kits, and methods provided herein generate an aerobic environment within the intestine to alleviate intestinal inflammation.

The present application relates to sewage treatment technical field, specifically to a kind of acrylonitrile sewage treatment device, comprising: microbial purification tank, exhaust mechanism, the exhaust mechanism has two and symmetrically set in the two sides of the inner wall of microbial purification tank width direction, the exhaust mechanism includes the cavity plate fixedly connected in the inner wall of microbial purification tank. By cavity plate, partition block and air separation assembly in exhaust mechanism, air can be injected and extracted into microbial purification tank, so as to provide corresponding purification environment for aerobic microorganism or anaerobic microorganism to purify sewage, and then realize that when injecting air, air exposure area and immersion area can inject air into microbial purification tank simultaneously to provide sufficient oxygen for aerobic microorganism to purify sewage, help its efficient decomposition of pollutants in sewage, while when extracting air, air separation assembly disconnects the communication of air exposure area and immersion area, so that suction airflow is only discharged from air exposure area, avoid sewage from flowing out with cavity plate, while avoiding suction airflow from immersion area to interfere with anaerobic environment in tank.

The application relates to a wastewater treatment device and a wastewater treatment equipment, which comprise a plurality of wastewater treatment components arranged in an anaerobic reaction tank according to a preset arrangement mode, wherein the wastewater treatment component comprises an inner electrode layer in a ring column structure, an isolation medium layer and an outer electrode layer which are sequentially arranged outside the periphery of the inner electrode layer; the outer electrode layer is used for stimulating anaerobic microorganisms in the anaerobic reaction tank to degrade and treat the to-be-degraded substances in the wastewater in the anaerobic reaction tank under the condition of being connected with the positive pole of a power supply, so as to release the electrons and protons in the to-be-degraded substances; the inner electrode layer is surrounded by a cavity, and the inner electrode layer is used for being connected with the negative pole of the power supply, so that the electrons, the protons and the dissolved oxygen of the wastewater entering the cavity can carry out a reduction reaction in the cavity. The wastewater treatment device and the wastewater treatment equipment provided by the application have higher wastewater treatment efficiency.

The utility model relates to a deoxygenization device for an anaerobic microorganism reactor. The deoxygenization device comprises an argon bottle, a reactor, a test tube, a vacuum pump, a pressure meter, a first glass tube, a second glass tube and a three-way scavenging valve, one end of the first glass tube is connected with the argon bottle, the other end of the first glass tube is connected with the test tube, a first opening is formed in the middle section of the first glass tube, and the first opening is connected with the three-way scavenging valve; one end of the second glass tube is connected with the three-way scavenging air valve, the other end of the second glass tube is connected with the vacuum pump, a second opening is formed in one end, connected with the vacuum pump, of the second glass tube, and the second opening is connected with the pressure gauge; and the three-way scavenging air valve is also connected with the reactor. According to the anaerobic microorganism reactor, reaction liquid in the reactor does not need to be preheated, and oxygen is removed under the condition that the activity of microorganisms is not influenced, so that the anaerobic microorganism reactor can normally react.

The utility model relates to the technical field of sewage treatment, in particular to an integrated sewage treatment device which comprises a water inlet pipe, a sewage treatment area and an equipment area, the sewage treatment area comprises a pre-aeration adjusting area, an anaerobic area, an aerobic area, a settling area and an artificial wetland area which are sequentially arranged and communicated according to a sewage treatment flow; a first aeration device is further arranged in the pre-aeration adjusting area, a second aeration device is arranged at the bottom of the aerobic area, and a third aeration device is arranged at the bottom of the artificial wetland area; fillers are arranged in the pre-aeration adjusting region, the anaerobic region, the aerobic region and the artificial wetland region; and the first aeration device is circularly started and stopped, so that anaerobic and aerobic environments alternately appear in the pre-aeration adjusting region, anaerobic microorganisms and aerobic microorganisms alternately act to remove organic matters in the sewage, and suspended matters and nitrogen and phosphorus contents of effluent are further reduced through the adsorption action of the filler in the artificial wetland region, so that a guarantee is provided for the standard reaching of water quality.

The present invention relates to an apparatus for culturing anaerobic microorganisms, which is structured not only to stably maintain an anaerobic environment in which oxygen does not exist, thus smoothly culturing anaerobic microorganisms, but also to automatically transfer and load the anaerobic microorganisms introduced into an accommodation unit to a loading unit, thus reducing inconvenience caused by transferring and loading the anaerobic microorganisms in the accommodation unit and the loading unit.

A urinal is fixedly connected to the bottom in a toilet room, a urinal groove is formed in the urinal, a urinal hole is formed in the urinal groove, the lower portion of the urinal hole is connected with a sewage pool through a pipeline, a water outlet of the sewage pool is fixedly connected with a water pump, the water pump is connected with an anaerobic microorganism pool through a pipeline, and the anaerobic microorganism pool is connected with a water inlet of the anaerobic microorganism pool through a pipeline. The anaerobic microorganism tank is connected with the aeration system through a pipeline, the aeration system is connected with the aerobic microorganism tank through a pipeline, a water outlet of the aerobic microorganism tank is fixedly connected with the defoaming pump, the defoaming pump can eliminate foams generated by the air floatation effect of bubbles in the aeration system, and the defoaming pump is connected with the ultrafiltration membrane filtration system through a pipeline. The ultrafiltration membrane filtration system is connected with a disinfection system through a pipeline, the disinfection system 14 is connected with a storage bin through a pipeline, the storage bin is connected with an automatic flushing system through a pipeline, and the automatic flushing system is connected with a urinal through a pipeline.

The invention discloses a method for independently recovering phosphate and nano zero-valent iron through anaerobic fermentation of excess sludge. The method comprises the following steps: adding the excess sludge into an anaerobic reactor, electrifying a cathode plate and an anode plate in the anaerobic reactor, keeping for a period of time, carrying out anaerobic fermentation on anaerobic microorganisms in the excess sludge, enabling phosphorus elements in the excess sludge to enter supernate, reducing the iron element in the residual sludge on the cathode plate to generate nanoscale zero-valent iron, and separating the supernate from the cathode plate after electrifying is finished; the electrifying condition is as follows: the control voltage is 1.5-5.0 V. According to the method disclosed by the invention, the release of phosphate in the supernate and the electrochemical reduction of Fe on a cathode plate can be realized to generate the nano zero-valent iron. Meanwhile, the anaerobic fermentation process is not affected in the electrifying stage, and the ratio of acetic acid in volatile acid is increased.