130 results about "Anaerobic bacterium" patented technology

The invention discloses a compound micro-ecological preparation for aquatic products as well as a preparation method and application thereof, and belongs to the technical field of micro-ecological preparations. The microecological preparation disclosed by the invention comprises clostridium butyricum, bacillus licheniformis, enterococcus faecalis and lactobacillus plantarum. The microecological preparation is combined with concentrated cottonseed protein for use, can replace fish meal, is added into feed, can remarkably improve the immunocompetence, oxidation resistance and digestive enzyme activity of animals, and can improve the relative abundance of beneficial bacteria in intestinal tracts, inhibit the growth of pathogenic bacteria and regulate the microecological balance of the intestinal tracts after entering the intestinal tracts of the animals. According to the invention, aerobic bacteria and anaerobic bacteria are cooperatively used, oxygen in the surrounding environment is greatly consumed by bacillus licheniformis and enterococcus faecalis, the proliferation of beneficial bacteria such as clostridium butyricum and lactobacillus plantarum is promoted, and the probiotic effect is fully played.

The invention belongs to the technical field of biomass anaerobic treatment, and particularly discloses a method for preparing methane through biomass anaerobic digestion based on oxygen nano bubble water. Biomass, activated sludge, oxygen nano bubble water and water are mixed, anaerobic digestion treatment is carried out, and methane is obtained. By introducing high-stability oxygen nano bubble water, a suitable micro-aerobic environment is provided for facultative anaerobic bacteria, so that the metabolic activity of the facultative anaerobic bacteria is activated, the decomposition and conversion of complex organic matters are accelerated, and the efficiency of a hydrolytic acidification stage is remarkably improved. Compared with a traditional chemical or physical pretreatment mode, the method has the advantages that interference on anaerobic flora is avoided, the degradability of a substrate is effectively enhanced, and more sufficient organic acid is provided for a subsequent methane production stage, so that the yield of methane is increased.

The utility model discloses a micro-power nitrogen removal tank. The micro-power nitrogen removal tank comprises a first chamber, a second chamber, a fluid discharge channel and a gas supply unit, wherein the first chamber is used for reducing oxygen content; the second chamber is used for removing nitrogen; the first chamber is provided with a water inlet, the upper part of the first chamber is communicated with the upper part of the second chamber, and the lower part of the second chamber is communicated with the lower part of the fluid discharge channel; the gas supply unit is communicated with the lower part of the fluid discharge channel and is used for introducing gas into the fluid discharge channel; during application, aerobic bacteria can be added into the first chamber, and anaerobic bacteria can be added into the second chamber; sinking the micro-power nitrogen removal tank added with the strain into a sewage water body; the micro-power nitrogen removal tank disclosed by the utility model can realize flowing of an internal water body only under the action of airflow, is extremely low in energy consumption, and can assist in realizing removal of total nitrogen under the condition that the ecology of a natural water body is not changed.

The utility model provides a pair of full-hemp surface layer menstrual period trousers, which comprises a full-hemp surface layer menstrual period trousers body which is in the shape of underpants formed by cutting and compounding non-woven fabrics and rubber bands. The full-China-hemp surface layer menstrual period pants body sequentially comprises a surface layer, a flow guide layer, an absorber, an anti-leakage bottom film and an elastic surrounding body from the skin contact surface to the bottom, and the surface layer is made of full-China-hemp non-woven fabric. The surface layer is the non-woven fabric made of all China-hemp fibers, the China-hemp fibers belong to natural plant fibers and can destroy the thallus structure of bacteria and prevent anaerobic bacteria from surviving, the China-hemp fibers have moisture absorption and quick drying functions, a dry environment is not beneficial to bacterial reproduction, menstrual blood is quickly pulled to the bottom through the multi-layer tiled structure in the absorber, and therefore the menstrual blood can be quickly absorbed. The China hemp fibers can effectively inhibit bacterium breeding and prevent bacteria from breeding upwards, skin or gynecological diseases caused by contact with skin are avoided, and the use requirement of women for menstrual period trousers is met.

The invention relates to a composite microbial inoculant and an evaluation method for the antibacterial effect thereof. The method optimizes the in-vitro culture mode of the microbial agent compounded by aerobic bacteria and anaerobic bacteria by simulating the intestinal environment of probiotics in an animal body, and adopts a facultative anaerobic culture method for the microbial compound agent, namely, the outer layer of a sealing film of a triangular flask is wrapped with four layers of preservative films, and the neck of the triangular flask is tightened by a rubber band. The facultative anaerobic environment of aerobic bacillus and facultative anaerobic enterococcus faecalis is considered in the microbial composite inoculant, in the subsequent oxford cup bacteriostasis evaluation experiment, the experiment result with the accurate bacteriostasis effect and good parallelism can be obtained, and the action effect of bacillus and enterococcus faecalis composite bacteria can be efficiently and scientifically evaluated.

The utility model discloses a sewage treatment device which comprises a homogenizing tank, one side of the homogenizing tank is connected with a monitoring room through a first conveying pipe, the homogenizing tank is connected with a biological fluidization tank through a second conveying pipe, one side of an anaerobic digestion tank is connected with an ozone tank through a pipeline, and one side of the ozone tank is connected with a biological aerated filter through a pipeline. A plurality of aerators are arranged in the biological aerated filter, stirring blades and a motor are arranged in the homogenizing tank, and different kinds of sewage from the septic tank effluent collecting tank, the domestic sewage inlet and the production wastewater inlet can be fully mixed through stirring, so that the quality and the quantity of the sewage entering a subsequent treatment unit are more uniform; according to the sewage treatment system disclosed by the invention, by adopting a mode of synergism of multiple treatment processes, the anaerobic digester can decompose macromolecular organic matters into micromolecules by utilizing anaerobic bacteria, and multiple processes are combined, so that various pollutants such as organic matters, heavy metals and toxic and harmful substances in sewage are more thoroughly removed, and strict environment-friendly emission standards can be better met.

The invention discloses a method for improving the processing quality of tobacco leaves by using a facultative anaerobic bacterium compound preparation, which comprises the following steps: preparing seed solutions of bacillus altitudinis ZY02-1, bacillus subtilis SMXP-58 and klebsiella variicola HNYJ-3, preparing a tobacco extracting solution, compounding the seed solutions according to the ratio of 2: 1: 2, centrifuging, resuspending and culturing by using the tobacco extracting solution to obtain a compound bacterial agent, and preparing the compound bacterial agent by using the facultative anaerobic bacterium compound preparation. And finally, spraying the complex microbial inoculant according to the inoculum size of 2-5% until the primarily-cured tobacco leaves are dampened until the moisture content is 14-15%, sealing, stacking and fermenting at 20-30 DEG C for 3-5 days, and then re-drying. By means of the method, decomposition of polyphenol and terpene aroma precursors of the tobacco leaves can be accelerated, the content of aroma substances such as megastigmatrienone is remarkably increased, aroma components such as oxidized isophorone are added, the aroma quality and the aroma amount of cigarettes are improved, offensive odor is reduced, and the aftertaste and smoking comfort are improved.

The utility model discloses an anaerobic reactor for wine brewing wastewater treatment relates to anaerobic reactor technical field, including reaction box, support leg, rotation water distribution subassembly, blow -off pipe subassembly, marsh gas collection subassembly and blow -off subassembly, the inside installation of reaction box has rotation water distribution subassembly, blow -off pipe subassembly, marsh gas collection subassembly and blow -off subassembly, and the downside of reaction box is provided with four support legs, rotation water distribution subassembly contains rotating cylinder, circular water distribution tray, shower nozzle, scraper, filter plate mounting ring and conical filter plate, and the upper end middle part rotation of reaction box is connected with rotating cylinder, and the lower end of rotating cylinder is provided with circular water distribution tray, and the outside of circular water distribution tray is provided with a plurality of shower nozzles, and this anaerobic reactor for wine brewing wastewater treatment can filter and clean up big granular pollutant, is equipped with water level and temperature double detector simultaneously, monitors the reaction environment in real time, ensures the best activity of anaerobiosis group, and improves the processing efficiency of organic wastewater.

The utility model discloses an anaerobic bacterium feeding device, which belongs to the field of sludge recycling and comprises a moving mechanism and a stirring mechanism, the moving mechanism comprises a second motor and a threaded rod, and the second motor and the threaded rod are mounted on a sludge treatment box; the stirring mechanism comprises a driving gear, a first driven gear, a second driven gear, a first rotating shaft and a second rotating shaft, the stirring mechanism and the anaerobic bacteria liquid outlet are driven to move in the sludge treatment box through movement of the connecting piece, multi-point and uniform feeding of anaerobic bacteria in sludge is achieved, the feeding range is expanded, and the feeding efficiency is improved. The condition that anaerobic bacteria are unevenly distributed in the sludge treatment box is effectively improved, meanwhile, through the design that the two stirring shafts rotate bidirectionally and the stirring blades are staggered, the sludge forms a complex flowing mode in the stirring process, the viscous structure of the sludge can be broken more effectively, full contact and mixing of the anaerobic bacteria and the sludge are promoted, and the sludge treatment effect is improved. And the decomposition efficiency is greatly improved.

The present disclosure provides a method and device for heating sludge anaerobic fermentation to produce biogas by microwaves under the action of a magnetic field, and relates to the technical field of green energy. The method comprises: drying and crushing sludge raw materials and inoculating anaerobic bacteria to form a fermentation mixture; placing the fermentation mixture in a closed reactor equipped with a microwave heating system and an electromagnetic field generating system, forming a uniform temperature field by microwaves and applying a controllable magnetic field to stimulate microbial activity; periodically switching or cooperatively controlling the two systems to maintain the target temperature zone and realize dynamic metabolic reinforcement; detecting the biogas yield and components, and adjusting the energy field parameters to form a closed loop control accordingly. The present scheme can establish a dynamic coupling between energy input and microbial metabolism, make the internal temperature distribution of the system uniform, the reaction rate stable, and the energy utilization rate high, and further make the organic matter degradation more sufficient and the gas production process more continuous, so that the energy efficiency and controllability of the overall anaerobic fermentation can be significantly improved.

One bacterial strain, designated HC1M1C21T, was isolated from human faeces and analyzed using phylogenetic, morphologic and biochemical approaches. Phylogenetic analyses based on 16S rRNA sequences and a set of 92 bacterial core genes indicated that this strain belongs to the Lachnospiraceae family and clusters near Pilosibacter fragilis (96.9% 16S rRNA sequence identity). HC1M1C21T has a DNA G+C content of 48.7 mol%. This strain is anaerobic, Gram- stain-positive, non-motile and non-spore-forming. HC1M1C21T cells appear as single rods or chained rods with tapered ends. Optimal growth was observed at 37°C, at pH between 5.5 and 6.5 and at salinity below 10 g / L. HC1M1C21T is a potent butyrate producer. The invention pertains to a new bacterial strain that produces butyrate and several independent factors with anti-inflammatory properties.

The application discloses an aerobic-anaerobic bacteria combined coal pretreatment biological gas production device, which comprises a gas blowing system, a bacterial population pre-culturing system, an aerobic-anaerobic biological combined pretreatment and gas production system and a gas-liquid two-phase collection and monitoring system. The application also discloses a gas production method of the gas production device. The application takes coal as a substrate, and under suitable conditions, carries out culture and optimization of a methanogenic bacterial population, and simulates indoor biological gas production effects under different coal rank, bacterial type, combined pretreatment mode, treatment time and metabolic environment conditions. The application adopts an integrated combined processor to combine aerobic bacteria and anaerobic bacteria for pretreating coal, so that coal-based biological gas production can be safely and efficiently carried out, and the application has important environmental benefits and broad application prospect.

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 invention provides a biological fermentation solid waste solid-liquid separation device, and relates to the technical field of waste treatment, the biological fermentation solid waste solid-liquid separation device comprises a barrel body, a filter structure is fixed in the middle of an inner cavity of the barrel body, the filter structure comprises a second filter screen, an elastic ring and a first filter screen, the second filter screen is fixed at the lower part of the elastic ring, and the first filter screen is fixed at the upper part of the elastic ring; and the second filter screen is fixed with the inner wall of the barrel body. During use, water containing anaerobic bacteria in the water supply pipe enters the water guide cover, then the water containing anaerobic bacteria in the water guide cover is discharged through the jet flow hole, the discharge end of the water supply pipe is opposite to the water guide cover, and the water guide cover is of a hemispherical cover shell structure, so that the water guide cover can guide waste sewage conveyed by the water supply pipe; therefore, waste sewage and water containing anaerobic bacteria discharged from the jet holes are conveniently mixed, the waste sewage is rapidly mixed with the anaerobic bacteria, and the treatment efficiency of the waste sewage is improved.

The application discloses a small and micro river ecological landscape restoration system, comprising: a drop weir including a front end suspended in the downstream of a river channel; a stone cage wall for supporting the drop weir; a riprap group for constructing a deep pool-shoal sequence, including riprap blocks for forming a nutrient temporary storage area, and refuge gaps provided between adjacent riprap blocks for small fish and shrimps; and a vegetation tower. The application also discloses a small and micro river ecological landscape restoration method. The small and micro river ecological landscape restoration system and the restoration method make the water body in the river channel fall through the front end to form a water curtain in contact with air, increase the oxygen content in the river channel, inhibit the generation and reproduction of anaerobic bacteria, prevent the water body from being black and smelly, ensure the cleanliness of the water body, and increase the ornamental property. The riprap group facilitates the reproduction and refuge of small fish and shrimps, and the vegetation tower is further beneficial to the long-term stable and sustainable development of the water body ecological landscape system.

The utility model discloses an anaerobic tank accelerated reaction device which comprises a tank body, a rotating hole is formed in the top of the tank body, a connecting pipe is rotatably connected in the rotating hole through a bearing, a power assembly for driving the connecting pipe to rotate is arranged on the outer wall of the top of the tank body, and a plurality of gas distributing pipes which are uniformly distributed are fixedly connected to the outer wall of the circumference of the connecting pipe. A plurality of uniformly distributed nozzles are fixedly connected to the outer sides of the multiple gas distribution pipes, and a rotating shaft is rotationally connected to the position, located between every two vertically adjacent gas distribution pipes, of the circumferential outer wall of the connecting pipe through a bearing. According to the utility model, the reaction efficiency of water and a carbon source at the corner can be improved, the reaction efficiency of the anaerobic tank is improved, the vertical state of the connecting pipe can be ensured in the rotating process of the connecting pipe, the shaking of the connecting pipe in the rotating process can be avoided, the activity of anaerobic bacteria can be ensured, and the service life of the anaerobic tank is prolonged. The removal rate and the gas production rate of organic matters are improved, and the normal operation of the anaerobic tank in winter is ensured.

The invention discloses a botanical fungicide for metal working fluid, which is prepared from the following raw materials in parts by weight: malus hupehensis extract, wolf thorn extract and melia azedarach extract according to the mass ratio of 1: (2-4): (2-4). The bactericide is natural in raw materials, can effectively inhibit bacteria, fungi and anaerobic bacteria, has a broad-spectrum bactericidal effect, is good in stability, can effectively avoid the problem of spoilage of the metal working fluid, is good in compatibility with the metal working fluid, is not liable to generate a precipitation reaction with other additives in the working fluid, is not liable to generate drug resistance, and is safe and reliable. The skin irritation risk when workers make contact with the disinfectant can be remarkably reduced, the disinfectant has good biodegradability, is easily decomposed by microorganisms in the natural environment, does not leave lasting chemical residues like traditional bactericides, and is beneficial to achieving the zero emission target.

The application discloses an iron-based raw material reinforced pig manure and rice straw mixed anaerobic fermentation device, and particularly relates to the technical field of anaerobic treatment, and comprises a fermentation tank, a groove cylinder, a moving block and a cover pressing piece. The upper surface of the fermentation tank is fixedly connected with the groove cylinder. The device further comprises: the moving block is arranged on one side of the groove cylinder; the cover pressing piece is installed on one end of the moving block, and is used for covering and pressing the top end surface of the groove cylinder when the anaerobic bacteria agent is put into the groove cylinder. The application has formed a complete closed loop process from the top cover, automatic positioning to in-situ verification, realizes the mandatory automatic verification before the anaerobic bacteria agent is added, eliminates the operation space of directly adding unqualified anaerobic bacteria agent by personnel violation, greatly improves the anaerobic treatment effect, and solves the problem of adding out of control caused by human subjective negligence, destroys the microbial activity and metabolic balance, and causes the significant decrease of the anaerobic treatment effect.

1. The name of the design product: microorganism culture monitor. 2. The use of the design product: for culturing, detecting aerobic bacteria, anaerobic bacteria, fungi and mycobacteria in blood and body fluid samples. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention discloses a domestication method and a treatment process of activated sludge for full-biochemical treatment of alkali-minimization wastewater, and relates to the field of printing and dyeing wastewater treatment. The alkali-minimization wastewater treatment process comprises the following steps: inoculating activated sludge containing salt-tolerant acidizing bacteria and activated sludge containing salt-tolerant anaerobic bacteria in an anaerobic tank, and inoculating activated sludge containing PTA degrading bacteria in an aerobic tank; wastewater to be treated is fed into the anaerobic tank so as to reduce the pH value and COD value of the wastewater, the wastewater subjected to anaerobic treatment enters the aerobic tank, the wastewater is in contact with the PTA degrading bacteria, and the PTA degrading bacteria decompose residual substances in the wastewater so as to further reduce the COD value of the wastewater. According to the method, the activated sludge containing the salt-tolerant acidizing bacteria and the activated sludge containing the salt-tolerant anaerobic bacteria can be directly inoculated into an anaerobic tank of an alkali-minimization wastewater treatment system and have relatively high degradation capacity on organic matters such as PET (Polyethylene Terephthalate) oligomer, PTA (Pure Terephthalic Acid) and ethylene glycol in the wastewater.

The invention provides a water toothpick detection system and method.The detection system comprises a sampling device, an induction device and a controller, the sampling device is used for collecting fluid sprayed by a water toothpick, the induction device is used for detecting an induction electric signal representing the content of bubbles in the fluid, and the controller obtains a bubble content parameter according to the induction electric signal; and obtaining a detection result according to the bubble content parameter. In the embodiment of the invention, the bubble content of the fluid sprayed by the water toothpick is detected, and the detection result of the water toothpick is determined based on the bubble content parameter, so that the inhibition and cleaning capability of the water toothpick on subgingival anaerobic flora can be objectively and quantitatively expressed more accurately; therefore, the cleaning ability and disease prevention ability of the water toothpick to the oral cavity of the user are reflected, and objective and efficient guidance is provided for manufacturers and users.

This invention relates to a composite microbial agent for the remediation of hexavalent chromium pollution and its application, belonging to the field of environmental engineering technology. The composite microbial agent for hexavalent chromium pollution remediation includes anaerobic bacteria, aerobic bacteria, heavy metal bacteria, and a carbon source. This composite microbial agent can maintain high activity in the actual complex environment of groundwater with low temperature and low nutrients, rapidly reducing hexavalent chromium to low-toxicity, low-migration trivalent chromium, achieving efficient removal of hexavalent chromium. The in-situ remediation method for hexavalent chromium-contaminated groundwater of this invention can be widely applied in environmental engineering fields such as industrial site pollution remediation, mine wastewater treatment, and agricultural non-point source pollution remediation, and is particularly suitable for in-situ injection-enhanced natural attenuation groundwater remediation processes.

The application relates to the field of filtering equipment, and discloses a copper rod rolling liquid automatic cloth-changing filtering equipment, which comprises a filtering shell, a liquid storage shell, a conveying pump and a liquid inlet pipe; a filter cloth rack is arranged on one side of the filtering shell; a liquid outlet pipe is arranged at the bottom of the filtering shell; a mesh belt conveying chain is arranged in the filtering shell; and the top of the mesh belt conveying chain is paved with filter cloth. When the application is used, the rolling liquid flows into the clear liquid cavity after being filtered by the filter cloth; during the filtering process, an air extractor is used to extract air from the inside of the clear liquid cavity, so that a negative pressure is formed in the inside of the clear liquid cavity, the filtering speed of the rolling liquid is accelerated, the airflow extracted by the air extractor circulates in the filtering shell from bottom to top, anaerobic bacteria in the rolling liquid are killed, the service life of the rolling liquid is prolonged, automatic cloth changing of the filter cloth can be realized, and after the cloth changing is completed, the sealing mechanism shields the openings of the first perforation and the second perforation, so that the application is convenient and efficient, and the filtering efficiency is improved.

The invention relates to the technical field of biomedicine and microorganisms, and provides an intestinal flora excrement sample preserving fluid which comprises a buffer system, a chelating agent, a reductive anaerobic protective agent, a cell lysis-bacteriostatic agent and a biomacromolecular stabilizer, wherein the buffer system is a combination of a Tris-HCl buffer solution and sodium chloride, the chelating agent is ethylenediamine tetraacetic acid disodium salt, the reductive anaerobic protective agent is L-cysteine hydrochloride, the cell lysis-bacteriostatic agent is sodium lauroyl sarcosinate, and the biomacromolecular stabilizer is a combination of trehalose and glycerin. The invention also provides a preparation method of the preserving fluid. According to the invention, the microbial DNA and community structure in the excrement can be stably preserved at room temperature for a long time without a cold chain; meanwhile, the preservation solution can effectively protect DNA of strict anaerobic bacteria from oxidative degradation, flora composition is prevented from shifting, and the reliability of subsequent molecular detection and analysis is finally ensured.

The invention discloses an Actinomyces sp. Strain, a separation and purification method and application of the Actinomyces sp. Strain in straw degradation, the Actinomyces sp. Strain is Actinomyces sp. And has been preserved in the China General Microbiological Culture Collection Center on July 3, 2025, and the preservation number of the Actinomyces sp. Strain is CGMCC No. 46460. As facultative anaerobic bacteria, the Actinomycete disclosed by the invention can be used for realizing efficient degradation under an anaerobic or aerobic condition in a single system, so that the process is remarkably simplified. In the practical application process, the strain can be used as a functional strain to be added into straw compost, organic matter decomposition is promoted, the composting period is shortened, and meanwhile the humus content is increased; fermentable sugar is generated by pretreating straws and is used for producing bioethanol or biogas; and the degraded straw residues can enhance the water-retaining property and microbial activity of the soil.

The utility model provides a spray cooling system, which relates to the field of gas devices, and comprises a spray mechanism, the spray mechanism comprises a water inlet unit, a first spray unit and a second spray unit, the water inlet unit is communicated with the first spray unit and the second spray unit, and demineralized water can enter the first spray unit and the second spray unit from the water inlet unit. The water is sprayed from the first spraying unit and the second spraying unit; and the gas outlet end of the purging mechanism can be connected with the spraying mechanism, ammonia gas can enter from the gas inlet end of the purging mechanism and enter the spraying mechanism from the gas outlet end of the purging mechanism, and the system can avoid generation of anaerobic bacteria and algae in the nozzle after shutdown. The device is compact and simple in structure and easy to operate and maintain, the investment and operation cost of equipment is further reduced, and the effect is remarkable.

The invention belongs to the technical field of environmental engineering, and particularly relates to an anaerobic ammonium oxidation bacteria enrichment culture and high-ammonia-nitrogen wastewater denitrification process which comprises the following steps: (1) preparing a functional carrier; (2) pretreating a functional carrier; (3) preparing an anaerobic bacteria enrichment carrier; (4) pretreating the high-ammonia-nitrogen wastewater; and (5) carrying out denitrification reaction. The scheme is suitable for high-ammonia-nitrogen wastewater treatment, and the starting rate, the operation stability, the treatment efficiency and the long-term economy of the process are improved through the design of the structure and the function of the functional carrier.

The invention relates to the technical field of ecological filter tanks, in particular to an ecological filter tank for preventing and treating river pollution, which comprises a filter tank body which is sequentially divided into a water inlet bin, a sludge bin, a fungus bin and a water purification bin along a sewage flowing direction to form a four-stage purification process; the water inlet bin intercepts and cleans large-particle impurities through a filtering grating and an automatic lifting plate; the sludge bin realizes automatic collection and discharge of sludge by means of an inclined plane and a spiral conveying mechanism; the fungus bin is provided with an anaerobic bacteria cavity, an anoxic bacteria cavity and an aerobic bacteria cavity which are independent, sewage gravity flow is realized through height difference, a strain living environment is optimized by matching with a carbon source slow release tank, a microporous aerator and the like, and a planting box and a biological carrier layer in the cavities form a plant-microorganism synergistic purification system; the water purification bin realizes tail water clarification; the problems that an existing filter tank is poor in pretreatment effect, not thorough in strain purification, tedious in maintenance and the like are solved.

The invention discloses a dog and cat oral health state rapid detection card and a preparation technology and application thereof, the dog and cat oral health state rapid detection card comprises a proper handle and a detection area, the detection area is fixed at one end of the handle, and the detection area is loaded with a first detection reagent and a second detection reagent; the first detection reagent and the second detection reagent respectively comprise DTNB serving as a color developing agent and TNBS serving as a color developing agent, the first detection reagent and the second detection reagent are arranged on the detection area in a partitioned mode of a first area and a second area, and the first area and the second area are arranged at intervals in a parallel strip-shaped mode. The method has the beneficial effects that markers in two anaerobic bacteria metabolites of mercaptan and amino acid are simultaneously detected through DTNB and TNBS, the limitation of single index detection is overcome, the sensitivity is high, more accurate and earlier anaerobic bacteria concentration judgment is realized, signals can be captured at the initial stage of anaerobic bacteria metabolic activity, the early warning effect is achieved, and the method is suitable for popularization and application. The detection operation is simple, convenient and rapid, and professional equipment or a complex sampling process is not needed.

Disclosed is a bile acid-metronidazole conjugate or a stereoisomer thereof, or a salt thereof, or a solvate thereof, or a prodrug thereof, or a metabolite thereof. The bile acid-metronidazole conjugate is prepared using an esterification reaction of a bile acid compound with hydroxyl group on a metronidazole structure. The synthesis process is simple and easy for industrialization. The bile acid-metronidazole conjugate can effectively inhibit the growth of anaerobic bacteria, especially the growth of Clostridioides difficile and Helicobacter pylori, so that the bile acid-metronidazole conjugate has a significantly improved therapeutic effect in the treatment of infections caused by the anaerobic bacteria.