137 results about "Aerobic bacteria" 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 discloses a benzalkonium chloride microbial limit counting inspection method, which relates to the technical field of microbial inspection, and comprises the following steps: firstly, preparing a test solution; wetting the filter membrane with the flushing fluid to obtain a rinsed filter membrane; different amounts of test solutions are taken and added into the flushing fluid, and a first mixed solution and a second mixed solution are obtained respectively; respectively filtering the mixed solution I and the mixed solution II through a rinsed filter membrane to obtain a filtered filter membrane I and a filtered filter membrane II; respectively flushing the filtered filter membrane I and the filtered filter membrane II with flushing fluid, and counting and checking the total number of aerobic bacteria through the flushed filter membrane I; counting and checking the total number of mould and saccharomycetes through the flushed filter membrane II; according to the benzalkonium chloride microbial limit counting inspection method, the application range is expanded, the total flushing amount is smaller, the flushing frequency is smaller, the error possibility in the test process is reduced, and the result is real, accurate and effective.

The invention discloses a high-sensitivity oxygen-resistant anode MFC (Microbial Fuel Cell) sensor for biotoxicity detection and a preparation method thereof. The sensor comprises a positive electrode, a negative electrode, a positive electrode chamber, a negative electrode chamber, a diaphragm, a current loop and a data acquisition system, a double-layer biological membrane is formed on the positive electrode through aerobic domestication, the outer layer is an aerobic bacteria layer, and the inner layer is an anaerobic electroactive bacteria layer. The aerobic bacteria on the outer layer consume dissolved oxygen and provide a stable environment for the anaerobic bacteria on the inner layer, so that the oxygen resistance and the operation stability of the sensor are remarkably improved. When the toxicity of a to-be-detected sample is detected, the biotoxicity of the sample is represented through the electrogenesis inhibition rate of the sensor. Experiments show that the response sensitivity of the sensor to toxic substances (such as Cu (II)) is obviously higher than that of a traditional anaerobic MFC sensor, and the sensor shows excellent anti-interference capability under different dissolved oxygen conditions. The method is suitable for rapid detection of biotoxicity of water and environmental samples, and has the characteristics of high sensitivity, strong oxidation interference resistance and good stability.

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 embodiment of the invention discloses application of lactobacillus delbrueckii. The application is characterized in that the lactobacillus delbrueckii is applied to inhibition of mesophilic aerobic bacteria, saccharomycetes, mould and coliform bacteria. The lactobacillus delbrueckii has a preservation number of CGMCC No.11247. In the lactobacillus delbrueckii activating process, bacteriocin can be generated and can remarkably inhibit the mesophilic aerobic bacteria, saccharomycetes, mould and coliform bacteria on the surfaces of fruits and vegetables, so that the preservation effect of thefruits and vegetables can be improved. Furthermore, secondary metabolites of the lactobacillus delbrueckii can be biodegraded and digested by human bodies, and are healthy and harmless to human bodies.

The invention discloses a method for enhanced removal of VOCs (volatile organic compounds) and synchronous power generation by a biological filter bed coupled microbial fuel cell system. According to the method, VOCs are introduced into a cathode chamber of a microbial fuel cell and then upwards penetrate through a filler layer of a fungus-bacterium coupled biological filter bed, in the stage, hydrophobic VOCs are adsorbed by fungal hyphae and then are aerobically degraded by bacteria to generate metabolic intermediates, hydrophilic VOCs can be directly degraded by aerobic bacteria, the purified VOCs are discharged from the top, and the purified VOCs are discharged from the bottom of the microbial fuel cell. Hydrophilic VOCs and metabolic intermediates which are not degraded in time can enter an anode chamber of the microbial fuel cell along with the nutrient solution, and the hydrophilic VOCs and the metabolic intermediates are further degraded as power generation substrates and generate electrons (e <->). According to the invention, the fungus-bacteria mixed biological filter bed is coupled with the microbial fuel cell system for treatment, so that enhanced removal is realized, and high-efficiency power generation is also realized.

The invention relates to the technical field of blood culture bottles, in particular to a composition and application thereof in preparation of a microbial culture medium. Yeast extract powder, soy peptone and casein tryptone are combined into a nitrogen source, and an aerobic and anaerobic culture medium for clinical pathogenic microorganism culture is formed. Through comparison verification, in growth experiments of nine aerobic bacteria and seven anaerobic bacteria, the culture speed and the biomass accumulation of the aerobic and anaerobic culture media added with the composition are integrally superior to those of other components excluded in the prior art and screening. Therefore, the composition can effectively promote the performance of a blood culture product, improve the clinical blood flow infection detection capability, inhibit antibiotic abuse and save the life of a patient.

The invention relates to a purification treatment device for treating river water pollution, which comprises a positioning part arranged at the bottom of a riverbed, a culture floating bed arranged above the positioning part, a floating structure arranged on the culture floating bed and used for providing buoyancy for the culture floating bed, an air supply structure arranged on the culture floating bed, and an inverted conical bottom surface extending downwards from the bottom surface of the culture floating bed, the air outlet end of the air supply structure corresponds to the outer surface of the bottom end of the culture floating bed, a plurality of layers of bacterium culture structures are arranged along the outer surface of the culture floating bed, a groove which extends downwards and accommodates air is formed by the bacterium culture structures and the culture floating bed, and a porous bacterium culture structure is arranged in the groove; a planting structure is arranged on the outer ring of the top end of the culture floating bed corresponding to the water surface height; a collection opening is formed in one side of the outer ring of the top end of the culture floating bed and is opposite to the water flowing direction of the riverway. The device can act on the area, making contact with air, of the surface of the river channel, and can further culture aerobic bacteria in the deep position of the river channel to decompose harmful substances, and the effect of treating river channel pollution more stereoscopically is achieved.

The utility model discloses a biochemical pool aerobic strain monitoring device suitable for viscose staple fiber production, which comprises a reaction tank, a bacterial liquid dilution tank, an aeration device and a COD (Chemical Oxygen Demand) detector, the reaction tank is provided with a liquid inlet, a bacterial liquid inlet, a gas delivery pipe and a sampling port for extracting supernatant liquid, the liquid inlet is connected with a biochemical pool through a first pipeline, and the bacterial liquid dilution tank is connected with the biochemical pool through a second pipeline; the bacterial liquid inlet is connected with a bacterial liquid dilution tank through a second pipeline, the bottom of the reaction tank is provided with an aerator and connected with an aeration device through a gas conveying pipe, and the sampling port is connected with a COD detector through a third pipeline. The device disclosed by the utility model has the characteristics of simple and practical structure and low manufacturing cost, and solves the arbitrariness problem of selection and throwing of aerobic bacteria in a biochemical pool in glue making and spinning reaction procedures of a viscose staple fiber production process; the treatment cost of biochemical raw water in the biochemical pool in the glue making and spinning reaction procedures of the viscose staple fiber production process can be effectively controlled, and the effect of improving the related working efficiency is achieved.

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 invention discloses a farm manure treatment pond and a laying hen manure treatment method, and relates to the field of sewage treatment equipment. According to the invention, a plurality of uniformly arranged and distributed rotary air distribution pipelines are mounted in the sludge layer of the aeration tank through the air distribution pipe network, and when an aerator supplies air to each rotary air distribution pipeline in the activated sludge layer of the aeration tank through the air distribution pipe network, the rotary air distribution pipelines can be driven by air supply pressure to rotate; oxygen is conveyed into the activated sludge layer in a circular range, the oxygen conveying range can be widened, the oxygen and the activated sludge are fully contacted and mixed, the oxygen supply effect on aerobic bacteria in the activated sludge is improved, the activated sludge layer in the aeration tank can be stirred by the rotary air distribution pipeline, the mixing uniformity of the activated sludge and the oxygen is improved, and the aeration effect is improved. The sewage purification treatment effect is further improved; when the rotary gas distribution pipeline rotates to distribute gas, the swing driving assembly can drive the rotary gas distribution pipeline to swing up and down in a reciprocating manner, so that the gas distribution range and the stirring effect of the rotary gas distribution pipeline are improved.

The invention discloses a sewage denitrification component based on compounding of MABR (Membrane Aerated Baffled Reactor) and flora colonization gel membrane filaments. According to the component, oxygen-permeable MABR membrane filaments and flora ecological colonization gel membrane filaments are packaged in a shell. Aerobic bacteria are enriched on the surface of the oxygen-permeable MABR membrane filaments by utilizing the oxygen-permeable characteristic of the oxygen-permeable MABR membrane filaments, so that short-cut nitrification from ammonia nitrogen to nitrite is realized; mutually-communicated micron-sized porous structures are arranged in the flora ecological planting gel membrane filaments, anaerobic ammonium oxidation bacteria can be loaded and protected in a high-density mode, the gel material wraps and slowly releases premixed nutrients, and flora activity is maintained. Through the spatial adjacent arrangement of the two membrane filaments, efficient coupling of short-cut nitrification and anaerobic ammonium oxidation is realized, and anaerobic ammonium oxidation bacteria directly utilize generated nitrite and residual ammonia nitrogen to generate nitrogen, so that efficient denitrification is completed in a single component. The design effectively solves the problems that anaerobic ammonium oxidation bacteria are difficult to enrich and are easily inhibited by dissolved oxygen, and has the advantages of high denitrification efficiency, low energy consumption, quick start, stable operation and the like.

The invention relates to the technical field of water source heat pumps, and particularly discloses a water source heat pump device applied to a sewage plant, the water source heat pump device comprises a supporting bracket, the top of the supporting bracket is fixedly connected with a suspended matter cleaning device, one side of the suspended matter cleaning device is fixedly connected with a sewage treatment box body, and one side of the sewage treatment box body is provided with an access hole; the side, away from the access hole, of the sewage treatment box body is fixedly connected with a scum cleaning box body, the bottom of the scum cleaning box body communicates with a first valve body water inlet through a pipeline, and the part, located at the bottom of the scum cleaning box body, of one side of the sewage treatment box body communicates with a gas heating mechanism through a pipeline; according to the water source heat pump device applied to the sewage plant, waste heat in the sewage is recycled while the sewage is purified, meanwhile, hot air flows into a water body through the air heating mechanism, so that heat generated by the sewage is decomposed through thermophilic aerobic bacteria, and meanwhile the heat of the hot air flows can be efficiently recycled.

The invention relates to the technical field of wastewater treatment, and discloses a chemical wastewater treatment system, which is characterized in that an adjusting tank is used for introducing chemical wastewater, adjusting the pH of the wastewater through a pH regulator, and adding suspended solids to obtain pretreated wastewater; the anaerobic reaction tank is used for introducing the pretreated wastewater, adding an anaerobic bacterium agent, carrying out biogas backflow aeration stirring, and regulating and controlling the biogas backflow flow and the stirring intensity in real time through a fuzzy PID algorithm; the aerobic reaction tank is used for introducing anaerobic effluent, adding an aerobic microbial agent, predicting the degradation-resistant COD (Chemical Oxygen Demand) concentration of the effluent by adopting an LSTM (Long Short Term Memory) model, and if a predicted value is greater than 50mg / L, prolonging the hydraulic retention time by 0.5-1h or increasing the dosage of the microbial agent; the hydrogen incinerator is used for heating anaerobic reaction inlet water to 30-35 DEG C through the heat exchanger; the post-treatment unit is used for discharging or recycling aerobic effluent after the aerobic effluent is subjected to membrane filtration and disinfection and reaches the standard; the degradation-resistant COD (Chemical Oxygen Demand) standard-reaching rate of effluent is improved.

The invention relates to a formula and a preparation method of compound desert cistanche granules, the compound desert cistanche granules are prepared by adding flavor on the basis of Qingzheng dialectical record yang-warming soup, the raw materials comprise desert cistanche, bighead atractylodes rhizome, monkshood, Chinese angelica, cynomorium songaricum, fried semen raphani and perillaseed, and the total weight of a single bag is 7g. The production process comprises the key steps of pretreatment of medicinal materials, independent first decoction of radix aconiti carmichaeli for detoxification, extraction of semen raphani and perillaseed volatile oil, inclusion of beta-cyclodextrin, combined decoction and concentration of all the medicinal materials, dry granulation and the like, and the technical effects that granules are instantly dissolved within 45 + / -5 seconds and the transfer rate of crude drugs is 91.2% are achieved by optimizing the proportion of auxiliary materials and process parameters. The quality of the finished product meets the requirements of Chinese Pharmacopoeia, the content of aconitine is less than or equal to 0.02%, the total number of microbial limit aerobic bacteria is less than or equal to 100 CFU / g, the problems that a traditional compound cistanche deserticola preparation is slow in dissolution speed, unstable in toxicity control and non-standard in production process are solved, and the method is suitable for large-scale industrial production.

The utility model discloses a washing sewage treatment system based on the MABR process, which comprises a regulating tank and an anaerobic tank arranged at the lower level of the regulating tank, the top of the regulating tank is connected with an acid-base dosing system through a pipeline, and a water impeller is arranged on one side, close to the acid-base dosing system, of an inner cavity of the regulating tank. A lifting pump is arranged on the other side of the inner cavity of the adjusting tank. According to the sewage treatment device, the acid-base dosing system is used for dosing into the regulating tank, so that sewage in the regulating tank is neutralized to keep neutral, the condition of poor sewage treatment effect caused by over-acidity or over-alkalinity is avoided, and toxic substances are decomposed by utilizing microorganisms on suspended filler in the anaerobic tank; and the decomposed sewage enters the aerobic tank, oxygen is introduced into the MABR membrane assembly by using the fan, so that the oxygen is diffused into the aerobic tank, decomposed toxic substances are absorbed by using aerobic bacteria, and finally, the decomposed toxic substances are discharged into the sedimentation tank for solid-liquid separation, so that the sewage treatment effect is effectively improved, and the practicability of the device is improved.

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 relates to a sewage purification circulating device, which belongs to the technical field of sewage purification and comprises a first cabin, a second cabin, a third cabin, a fourth cabin, a fifth cabin and a sixth cabin which are communicated in sequence, the first cabin body, the second cabin body, the third cabin body, the fourth cabin body, the fifth cabin body and the sixth cabin body are connected through staggered pipelines to form a natural fall, and the first cabin body, the second cabin body, the third cabin body and the fourth cabin body are used for generating aerobic bacteria. Ultraviolet sterilization modules are further integrated in the fifth cabin body and the sixth cabin body, an ultrafiltration membrane assembly used for filtering is arranged on the sixth cabin body, the ultrafiltration membrane assembly comprises a timing electromagnetic valve, and the timing electromagnetic valve is electrically connected with a PLC (Programmable Logic Controller) to realize timing and directional backwashing.

The invention discloses a microbial fermentation organic fertilizer and a preparation method thereof, and belongs to the technical field of microbial fertilizer.The preparation method comprises the steps that aerobic bacteria are adopted for composting of a mixture of cow dung and straw residues, an accelerant with oxygen release and heat conduction functions is prepared, and aerobic fermentation is conducted; the accelerant can effectively increase the oxygen content in the compost body and maintain the temperature of the compost body to be uniform, so that the problem of low fermentation efficiency caused by insufficient oxygen and uneven temperature in the compost body in a conventional composting method is solved, and the method has a good application prospect in the field of preparation of fermented organic fertilizers.

The invention discloses high-activity low-astringency roxburgh rose fermentation liquor and a preparation method thereof, and belongs to the technical field of food and food processing. The high-activity and low-astringency roxburgh rose fermentation liquor is prepared from the following components in parts by weight: 95 to 105 parts of roxburgh rose juice, 0.00040 to 0.00060 part of lactobacillus plantarum, 0.00028 to 0.00038 part of lactobacillus paracasei and 0.00011 to 0.00021 part of saccharomycetes (LB-1). The rosa roxburghii tratt juice can be fermented through the lactobacillus plantarum and the lactobacillus paracasei contained in the rosa roxburghii tratt juice, so that tannin contained in the rosa roxburghii tratt juice is degraded, and the content of tannin in the rosa roxburghii tratt juice is reduced; according to the present invention, the fermentation broth can be in the oxygen pressure environment through the carbon dioxide produced by fermenting the rosa roxburghii tratt juice through the contained yeast (LB-1), such that the growth of the aerobic bacteria can be inhibited, the oxidation of the vitamin C can be inhibited, the structure of the superoxide dismutase can be maintained not to be damaged, and the activity of the superoxide dismutase can be maintained.

The invention relates to the technical field of water treatment, and discloses an environment-friendly water treatment aeration device which comprises a treatment tank, the inner wall of the treatment tank is rotatably connected with a first rotating shaft, the inner wall of the first rotating shaft fixedly communicates with a first air pipe, and the inner wall of the first air pipe fixedly communicates with a second air pipe. The circumferential surface of the second air pipe fixedly communicates with a third air pipe, the circumferential surface of the second air pipe is rotationally connected with a first gear, the circumferential surface of the first shaft is fixedly connected with blades, and the top end of the first shaft is fixedly connected with an aerator. The contact area of oxygen and sewage is increased, meanwhile, the sewage can be comprehensively heated when the air temperature is too low, and the situations that the viscosity of a water body is increased due to the too low air temperature, the aeration efficiency is remarkably reduced due to the resistance of oxygen diffusing into water from bubbles, and the sewage treatment efficiency is reduced due to the fact that the activity of aerobic bacteria is reduced in a low-temperature environment are prevented.

The invention discloses a micro-power nitrogen removal tank and application thereof. The micro-power nitrogen removal tank comprises a first chamber for reducing oxygen content, a second chamber for removing nitrogen, a fluid discharge channel and a gas supply unit, 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 time point for controlling the gas supply unit to start gas supply is before or after the micro-power nitrogen removal tank sinks into the water body; according to the invention, the flowing of the internal water body can be realized only under the action of airflow, the energy consumption is extremely low, and the removal of total nitrogen can be realized under the condition that the ecology of the natural water body is not changed.

The application discloses a farm manure treatment tank and an egg chicken manure treatment method, and relates to the field of sewage treatment equipment. The rotating air distribution pipe is arranged in the sludge layer of the aeration tank in a uniform distribution manner, and when the aerator supplies air to each rotating air distribution pipe in the active sludge layer of the aeration tank through the air distribution pipe network, the rotating air distribution pipe can rotate under the drive of the air supply pressure, and oxygen is circularly delivered into the active sludge layer, so that the oxygen delivery range is improved, the oxygen and the active sludge are fully contacted and mixed, the oxygen supply effect on the aerobic bacteria in the active sludge is improved, the active sludge layer in the aeration tank can be stirred by the rotating air distribution pipe, the mixing uniformity of the active sludge and the oxygen is improved, and the sewage purification treatment effect is improved. When the rotating air distribution pipe rotates to distribute air, the swing driving assembly can drive the rotating air distribution pipe to reciprocally swing up and down, so that the air distribution range and the stirring effect of the rotating air distribution pipe are improved.

The present invention features general-purpose microbiological growth media capable of supporting growth of microorganisms on membranes. The media contain casein digest, soybean digest, animal tissue digest, yeast extract, dextrose, a phosphate buffer, hemin, and L-cystine. The invention features an all-purpose microbiological growth media that can support the growth of anaerobes, molds, injured spores, and general aerobic bacteria to a greater extent than other media.

The utility model relates to the technical field of wastewater toxicity detection, and discloses a biological attenuation reactor with a high-concentration organic wastewater biological toxicity detection function, which comprises a biological attenuation tank and a biological toxicity detection tank which are sequentially communicated through an inner return pipe, the part, inserted into the biological attenuation tank, of the water inlet pipe is communicated with the top of the cylindrical flow guide pipe. According to the biological attenuation reactor with the high-concentration organic wastewater biotoxicity detection function, the biological attenuation tank, the biotoxicity detection tank and other parts are arranged, so that high-concentration organic wastewater can be directly received, and the situation that the high-concentration organic wastewater directly enters an anaerobic or aerobic system to cause system impact and system paralysis can be avoided; according to the biotoxicity detection and attenuation reactor, anaerobic bacteria or aerobic bacteria are prevented from being added again, the water inlet index of a subsequent biochemical system is guaranteed, stable operation of the biochemical system is guaranteed, and the problem that the operation cost is increased due to collapse of the biochemical system is solved.

The present application relates to a bioreactor. The bioreactor includes a box body and a nano-ceramic component, and the nano-ceramic component is installed in the box body; the box body is provided with a water inlet, a ventilation window, and a fixing groove. The water inlet is located above the box body, the ventilation window is located below the water inlet and on both sides of the box body, and the fixing groove is located below the ventilation window; a water distributor is arranged in the box body and connected to the water inlet; the nano-ceramic component includes a fixing shaft and a nano-ceramic membrane, and the fixing shaft fixes the nano-ceramic membrane on the fixing groove. The small-sized nano-ceramic membrane sewage treatment bioreactor of the present application adopts a stacked arrangement mode of nano-ceramic membranes. On the one hand, it can provide a sufficient environment for the growth of sewage microorganisms to form a biofilm, greatly improving the space utilization rate, and only relying on natural ventilation can provide the necessary oxygen for pollutant degradation; the formed air layer and water flow layer can grow aerobic bacteria and anaerobic bacteria, and the aerobic bacteria can obtain continuous oxygen from the atmosphere.

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.

This invention discloses a biochemical treatment device and method for producing water from high-salinity gas fields via MVR distillation. The device includes a base, a biochemical tank at the top of the base, a support frame on the side of the base, and a collection mechanism below the support frame that automatically detects and collects excess sludge. A sealing mechanism is installed on the side wall of the biochemical tank, and a filter plate is installed inside the tank. This invention, through the configuration of a drive motor, an electric telescopic rod, a fan-shaped collection chamber, a first trapezoidal block, a contact rod, a reciprocating switch, and a second trapezoidal block, achieves automatic cleaning when the sludge reaches half the capacity of the biochemical tank, preventing a reduction in tank volume from affecting biochemical treatment efficiency. Furthermore, the adjustment mechanism gradually increases aeration as aerobic bacteria multiply, ensuring sufficient oxygen for nitrification and maintaining the wastewater treatment efficiency of the biochemical tank. This adaptive adjustment requires no manual intervention and is convenient and quick.

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.