100 results about "Aerobic bacterium" patented technology

The invention relates to the field of wastewater treatment, and relates to a biological degradation method of nitrogen-containing heterocyclic compound wastewater. An oxidation state compound is added in the nitrogen containing heterocyclic compound wastewater, an anaerobic environment is formed by micro aeration, and mixed electron acceptors of dissolved oxygen and the oxidation state compound simultaneously exist in the system; an upflow biological aerated filter is used as a main reaction device, an optimal degradation effect of nitrogen-containing heterocyclic compounds is achieved according to different components and concentrations of the nitrogen-containing heterocyclic compounds, the pH is controlled to 7.0-7.5, the concentration of the dissolved oxygen is controlled to 0.05-0.3 mg / L (water discharged from the upper part of the filter), and the range of the oxidation-reduction potential is controlled to 150-50 mv; under an anaerobic aeration condition, with the nitrogen-containing heterocyclic compounds as electron donors and oxygen and oxygen-containing compounds as electron acceptors, under the combined effects of micro aerobic bacteria, facultative anaerobic bacteria, aerobic / anoxic denitrifying bacteria and the like, the nitrogen-containing heterocyclic compounds are completely degraded into carbon dioxide and water.

The invention disclosure is a method of bioremediation of wastewater, particularly groundwater, by utilizing coupled anaerobic and aerobic biological treatment, more specifically, methanogenic (strictly anaerobic) and methanotrophic (strictly aerobic) microbial populations, in combination with a supply of in-situ generated water-dissolved oxygen and hydrogen. Water electrolysis is used to produce water-dissolved oxygen and hydrogen. The immediate advantage of using H2 from the electrolysis, is to provide electron donors to methanogens to reductively dechlorinate the chloroaliphatics, and to reduce the water carbonates and generate methane which is used as energy and carbon source for the methanotrophic bacteria. Oxygen is used as electron acceptor by the aerobic bacteria, including the methanotrophs. The addition of an organic carbon source can be minimized or even eliminated, so as to diminish the competition between methanotrophic bacteria and heterotrophic bacteria for oxygen.

The invention provides a preparation method of fruit ferment. The preparation method comprises the following steps: carrying out anaerobic fermentation by inoculating anaerobic bacterium strains, filtering the obtained fermentation products, saving the filtrate (A), keeping on inoculating aerobic bacterium strains to peels and dregs of fruits to carry out aerobic fermentation for 5 to 15 days, then adding liquor, keeping on fermentation for 5 to 10 days, then filtering the fermentation products, condensing the filtrates, then merging the condensed filtrates, adding molasses, inoculating beneficial bacteria to the mixed filtrate, and sealing the mixed filtrate for 10 to 20 days to obtain the environment-friendly ferment. The preparation method can effectively avoid the mildew of fruit peels during the fermentation process, thus the content of nitrite is reduced, the obtained ferment prepared from fruit peels is healthy and unique, at the same time, the ferment content is increased, the function of the ferment is improved, moreover, the wastes (fruit peels) are converted into valuable resources, and the utilization of wastes is promoted.

The invention discloses aerobic bacterium-anaerobic bacterium composite microbe liquid inocula and a preparation method thereof. The composite microbe liquid inocula comprise six liquid aerobic microbial agents and four liquid anaerobic microbial agents. The liquid aerobic microbial agents comprise a bacillus megaterium agent, a liquid Azotobacter chroococcum agent, a liquid bacillus mucilaginosus agent, a liquid streptomyces microflavus agent, a liquid bacillus subtilis agent and a liquid bacillus licheniformis agent. The liquid anaerobic microbial agents comprise liquid photosynthetic bacteria, a liquid lactobacillus plantarum agent, a liquid lactobacillus acidophilus agent and a liquid lactobacillus delbrueckii agent. The preparation method comprises culturing six types of aerobic bacteria to obtain six liquid aerobic microbial agents, culturing four types of anaerobic bacteria to obtain four mixed liquid anaerobic microbial agents, and injecting the six liquid aerobic microbial agents into the mixed liquid anaerobic microbial agents to obtain the composite microbe liquid inocula. The composite microbe liquid inocula have a quality guarantee period for one year or more at the normal temperature and have functions of nitrogen fixation, phosphate dissolution, potassium release, disease prevention and soil improvement.

The invention belongs to the technical field of sewage treatment and discloses a broad spectrum biological agent for treating black and odorous water. The broad spectrum biological agent comprises a compound microbial community and a biological complex enzyme preparation, wherein the compound microbial community is composed of different anaerobic bacteria and aerobiotic bacteria. The broad spectrum biological agent for treating the black and odorous water provided by the invention has the beneficial effects that the problem of the black and odorous water resulted from pollution is quickly and effectively solved, the water quality is obviously improved and the ecological environment and ecological system of water can be quickly recovered.

The invention provides a garbage enzyme preparation method utilizing fruit peels. The preparation method comprises the following steps: the fruit peels are inoculated with an anaerobic bacterium for 10 to 20 days of anaerobic fermentation, and a first filtrate is reserved after filtering of the obtained product; fruit peel dregs are then inoculated with an aerobic bacterium for 5 to 15 days of aerobic fermentation, the fermentation continues for 5 to 10 days after white wine is added, and the product is then filtered; filtrates obtained through the two filtering processes are respectively concentrated and then mixed, molasses is added, the mixture is then inoculated with a beneficial bacterium, and garbage enzyme is obtained after 10 to 20 days of sealed storage. The garbage enzyme preparation method provided by the invention has the advantages that the effects of mildew of the fruit peels during fermentation are effectively avoided, so as to reduce the nitrite content, and ensure that the prepared fruit peel enzyme is healthy and unique; meanwhile, the enzyme content in the garbage enzyme is further increased, so as to improve the functional effects of the garbage enzyme; the fruit peels are used as raw materials, so as to achieve the effect of turning waste into wealth, and improve the waste utilization rate.

The invention relates to the technical field of bacterial culture, and discloses an anti-pollution bacterium culture device and method for a clinical lab. The anti-pollution bacterium culture device for the clinical lab comprises a box body, a culture dish and a placement table, wherein the inner wall of one side of the box body is vertically provided with a vertical plate through bolts; one sideof the vertical plate is fixedly provided with a horizontal plate; one side of the horizontal plate is fixedly provided with an empty box; the bottom of the empty box communicates with one end of a straight pipe; the other end of the straight pipe extends into the culture dish; the outer side of the straight pipe is fixedly provided with a plurality of stirring rods; and the top of the placement table is provided with a placement groove. The anti-pollution bacterium culture device is reasonable in design, while the culture dish is driven to rotate, the culture dish vertically shakes, through acooperation function with the stirring rods, culture liquid is stirred, so that the culture liquid forms circulation, bacteria suspend, an illumination effect is guaranteed, and oxygen can be introduced into the culture dish to supplement oxygen required by aerobic bacteria growth so as to guarantee a bacteria culture effect.

The invention belongs to the technical field of environmental pollution detection and relates to a method and a device for detection of water acute toxicity. The method realizes toxicity analysis according to a reduction degree of an ammonium ion oxidation rate after nitrite bacteria are inhibited by noxious materials. Bacteria and a selective electrode are connected in a flow analysis system in series, a sample is fed into the system and is acted by the bacteria, then a medium is transformed, an ammonium ion-containing buffer solution is used, and an ammonium ion oxidation rate of the bacteria can be obtained by calculation of change of potential signals detected by an ammonium ion selective electrode. The method utilizes a medium transition technology, eliminates matrix effects and avoids electrode pollution and damage caused by a sample. The method and the device utilize the ammonium ion selective electrode to realize ammoxidation rate determination so that interference produced by other aerobic bacteria in oxygen electrode-based dissolved oxygen determination is avoided.

An apparatus and a method for the remediation of failing wastewater treatment systems, such systems being comprised of one or more septic tanks and a seepage pit, drywell, absorption field or an above grade mound system having an inlet and a plurality of outlets wherein effluent drains from the inlet to the outlet, comprises a positive pressure pump having an output, a tube having a first end and a second end, the first end being attachable to the pump output, and an air stone attachable to the second tube end. The pump is used to deliver air through the tube to the air stone. As much tube as is required is used to allow the air stone to be introduced into almost any portion of the wastewater treatment system so as to introduce air into the effluent to allow aerobic bacteria to proliferate. The apparatus could also include a plurality of such pumps, tubes and air stones, and in many combinations. The method comprises introducing oxygen to the bio-mat, introducing live aerobic bacteria to the bio-mat, monitoring the level of effluent in the absorption field or dry well, and stopping the introduction of air to the effluent when the bio-mat is sufficiently reduced or made permeable. The method could also introduce live anaerobic bacteria to the treated area after remediation equipment is removed.

A transformant capable of producing isopropanol which is constructed by transferring the following genes (a) to (d) into an aerobic bacterium or a facultative anaerobic bacterium:(a) a foreign gene which encodes an enzyme having acetyl-CoA acetyltransferase activity;(b) a foreign gene which encodes an enzyme having acetoacetyl CoA:acetate CoA-transferase activity;(c) a foreign gene which encodes an enzyme having acetoacetate decarboxylase activity; and(d) a foreign gene which encodes an enzyme having isopropanol dehydrogenase activity.

Provided is an isolated novel Gram-positive non-motile, non-spore-forming, aerobic bacterium designated Streptomyces scopuloiridis, wherein the bacterium produces a bacteriocin that kills or inhibits the growth of Gram-positive or Gram-negative target bacteria. Also provided are novel purified polypeptides, and fragments thereof, and isolated nucleic acids from the bacterium. Further provided are methods of using the bacterium and the purified polypeptides, and fragments thereof, to preserve food and prevent bacterial contamination of food.

The invention relates to a microbial fertilizer. The microbial fertilizer comprises 84-90% by mass of organic matters and 5-11% by mass of water and also comprises a strain, wherein the strain comprises at least two kinds of aerobic bacteria and at least one anaerobic bacterium; each aerobic bacterium is any one of bacillus subtilis, bacillus megaterium, bacillus stearothermophilus, bacillus sphaericus, bacillus firmus and saccharomycetes; the anaerobic bacterium is any one of bacillus circulans, bacillus licheniformis and lactobacillus acidophilus. The microbial fertilizer has the beneficial effects that the microbial fertilizer has the effects of overcoming the defects of the existing chemical fertilizers, reducing environmental pollution and activating soil; the content of beneficial biological bacteria in the microbial fertilizer is more than 0.3billion / g and biological activating enzymes and various trace elements are supplied, so that the quality of crops has a qualitative leap; through simultaneously containing the aerobic bacteria and the anaerobic bacteria, the microbial fertilizer can work under different conditions, thus increasing the output rates of the crops.

The invention discloses a preparation method of dendrobium officinale caulis wine. Bacillus coagulans and saccharomycetes are mixed and fermented, wherein the bacillus coagulans is an aerobic bacterium; in a fermentation process, the mildewing of dendrobium officinale caulis and the malignant transformation of flavor substances can be inhibited by consuming oxygen; an experiment verifies that an anti-oxidization substance has good stability in the fermentation process and a storage process; the reservation of original nutrient components is facilitated, and a sufficient C source and N source exist in a fermentation system; the alcohol content of the prepared dendrobium officinale caulis wine is 6 volume percent to 8 volume percent; the prepared dendrobium officinale caulis wine has a coordinated taste, good color and luster and an excellent flavor, and has the characteristics of abundant nutrients, health-care function and the like; an operation process is relatively simple and the wine is not easily infected by infectious microbes; only one time of fermentation is performed and a fermentation period is short; a fermentation byproduct can be used as a raw material of stuffing or is dried by mist spraying to obtain dendrobium officinale caulis powder; the loss of the nutrient components of the obtained product is less and the product does not easily go moldy in a processing process; the product has good quality and an excellent mouth feel, good comprehensive utilization is realized, and the dendrobium officinale caulis wine is suitable for being produced in a factory in a large batch.

The invention discloses a novel bacterial strain for producing bacterial cellulose and an isolation and screening method of the bacterial strain. The bacterial strain is named as Komagataeibacter hansenii Man-170518-hww and is preserved in CGMCC (China General Microbiological Culture Collection Center); the preservation number is CGMCC No.15468. The bacterial strain is separated from mangos, and is a gram negative and short-rod-shaped aerobic bacterium; stable high-yield capability is realized; a large quantity of bacterial cellulose can be produced during the baffle plate triangular flask fermentation.

The present invention provides a bacteria detection device, bacteria detection method and bacteria detection kit enabling rapid and accurate determination of bacteria present in a test sample, and particularly spore-forming, aerobic bacteria, with a simple procedure. The bacteria detection device according to the present invention is a microarray type of device in which an oligonucleotide, which is based on a nucleotide sequence specific to a genus or species to which a target spore-forming, aerobic bacteria belongs, is immobilized on a substrate. Spore-forming, aerobic bacteria present in a test sample can be easily, rapidly and accurately detected and identified based on the presence or absence of successful hybridization between a probe prepared from the test sample and the oligonucleotide immobilized on the substrate.

The invention discloses a biological filling material and a filling material net containing the same. The invention relates to a biological filling material, which comprises a filling material body. Multiple bacterium clusters are adsorbed on the external wall of the filling material body. Each bacterium cluster is sequentially provided with an anaerobic bacterium layer and an aerobic bacterium layer from the center to the outer wall. Bacterium clusters are adsorbed on the filling material body. Each bacterium cluster comprises an anaerobic bacterium layer and an aerobic bacterium layer. Due to the different growth habits of anaerobic bacterium and aerobic bacterium, the aerobic bacteria are distributed in the external side, the anaerobic bacteria are distributed in the inner side, through the combination of anaerobic bacteria and aerobic bacteria, the number of sewage processing tanks is reduced, and moreover, the processing speed and efficiency are improved.

The invention discloses a compound nitrogen-fixing microorganism bacterium fertilizer and a preparation method thereof, particularly a compound nitrogen-fixing microorganism bacterium fertilizer which is wide in PH application range, strong in nitrogen fixing capacity under aerobic and anaerobic conditions, and easy to store. The compound nitrogen-fixing microorganism bacterium fertilizer is prepared from the following raw materials: 10 to 30 parts of bacillus flexus fermenting liquid, 30 to 80 parts of clostridium pasteurianum fermenting liquid and 20 to 60 parts of India Beijerinckia fermenting liquid. According to the compound nitrogen-fixing microorganism bacterium fertilizer and the preparation method thereof, the aerobic and anaerobic nitrogen fixing bacteria series are fused into a whole creatively; one type is the aerobic nitrogen fixing bacteria, namely, the India Beijerinckia (the India Beijerinckia can fix nitrogen under low oxygen, but is mainly the aerobic bacterium) and the bacillus flexus; the other type is the anaerobic nitrogen fixing bacteria, namely, the clostridium barati; both the aerobic nitrogen fixing bacteria and the anaerobic nitrogen fixing bacteria have strong nitrogen fixing capacity, can fix the nitrogen in relatively deep soil (10 to 30 cm), and can convert nitrogen in air into the nitrogen which can be absorbed by a plant and provide the nitrogen to the plant continuously.

The invention relates to a nano biological cycle water treatment agent which comprises the following raw materials in parts by mass: 10-20 parts of sepiolite fibers, 100-150 parts of pure diatom, 10-20 parts of volcanic carbon, 60-100 parts of attapulgite, 6-10 parts of zeolite, 10-20 parts of an enzymatic agent, 0.02-0.07 part of magnesium hydroxide, 0.02-0.07 part of ferric oxide, 30-50 parts of glucose, 50-80 parts of an aerobic bacterium agent, 20-30 parts of an anaerobic bacterium agent, 10-20 parts of a nitrifying bacterium agent, 10-20 parts of a denitrifying bacterium agent, 10-20 parts of a phosphorus-accumulating bacterium agent and 10-20 parts of a hydrolytic acidification bacterium agent. The preparation method comprises the following steps: sufficiently mixing various materials which are weighed according to a mass ratio, and performing packaging, thereby obtaining a finished product. The water treatment agent can be applied to treatment of various types of hardly-degradable industrial wastewater and has excellent effects of degrading and removing multiple pollutants, and the moisture content of sludge can be reduced.

The invention discloses a graded purification treatment technology for mixed wastewater and belongs to the field of wastewater purification technologies. The graded purification treatment technology for the mixed wastewater comprises the following steps: step 1, carrying out primary filtering through a grid; step 2, treating through a grit catcher; step 3, treating through a primary sedimentationtank; step 4, carrying out biological treatment; step 5, carrying out secondary sedimentation; step 6, carrying out coagulation sedimentation; and step 7, filtering and disinfecting. A biological treatment procedure in step 4 is used for treating sewage through a biological contact oxidization method, and a biological membrane-forming bracket used in the biological contact oxidization method is aspecial membrane-forming bracket; the special membrane-forming bracket is provided with a micro-pore, an outer round pipe, an inner round pipe, a second connection pipe, a first connection pipe, a secondary connection pipe, a main connection pipe and a second ventilation hole, so that microorganisms including aerobic bacteria and the like in the water keep breathable; and sufficient oxygen gas inthe water is kept, the activity of the aerobic bacteria is promoted and the membrane-forming quality is enhanced, so that the sewage purification degree is improved.

The invention discloses a root knot nematode disease prevention pseudomonas new species. The strain is a pseudomonas with the collection name of pseudomonas Jdn1 and collected in a China General Microbiological Culture Collection Center (CGMCC) at No. 3, yard 1, Beichen west road, Chaoyang district, Beijing on June 9, 2017, and the collection number of the strain is 14226. The single colony of thepseudomonas is faint yellow, nearly circular, transparent, neat in edge and smooth in surface, the pseudomonas strain is gram-stained to be red and is a Gram negative bacterium, and the pseudomonas strain grows along the surface of a culture medium in an aerobic test result and is an aerobic bacterium. The pseudomonas strain and the microbial agent thereof are good in root knot nematode disease prevention effects and environmentally friendly.

The invention relates to the technical field of water environment treatment, in particular to an intelligent dissolved oxygen regulating and controlling device for water environment treatment and a method adopting the intelligent dissolved oxygen regulating and controlling device. The intelligent dissolved oxygen regulating and controlling device comprises a DO detecting probe, a data collecting module, a parameter editing module, a data processing module, a display module, a data storage module, a controlling and regulating module, an equipment control module, a valve control module, an electromagnetic valve and aeration equipment. Water dissolved oxygen can be autonomously and intelligently controlled and regulated, the dissolved oxygen is controlled within the dissolved oxygen range achieving most vigorous aerobic bacterium physiological activity and metabolism all the time, the operating energy consumption of the equipment can be reduced, and the running efficiency of the equipment can be improved.

The invention discloses a method for coagulating natural latex by using compound microorganisms. The method comprises the following steps: inoculating a liquid culture medium against an anaerobic bacterium and an aerobic bacterium, and culturing the anaerobic bacterium and the aerobic bacterium in a shaker to obtain a primary culture liquid, wherein the anaerobic bacterium is lactobacillus bulgaricus, and the aerobic bacterium is bacillus natto; inoculating a molasses culture medium against the primary culture liquid, culturing the primary culture liquid to obtain a microbial preparation, and coagulating the natural latex by using the microbial preparation. The selected compound microorganisms can act synergistically and complementarily and can be used for coagulating the natural latex under the condition that the content of ammonia is less than 0.1%. A small amount of acids are adopted by the method, and little pollution is caused to environment. The microorganisms are wide in source, are easy to culture, are low in cost and are suitable for popularization.

The invention relates to a biological demanganization and deferrization functional bacterium, which relates to a microorganism. The invention solves the problems that: the prior biological oxidation demanganization engineering flora is established in virtue of natural selection, thereby the biochemical capacity is weak and the demanganization effect is bad; the culture, acclimation and starting time required for a water treatment demanganization biological filter chamber is long, and the restore cycle after the enginerring flora is damaged is long. The biological demanganization and deferrization functional bacterium MS604 (Sphingobacterium sp.) belongs to Sphingobacterium sp. and is preserved in Common Microorganism Center of China Committee for Culture Collection of Microorganisms; the preservation date is October 30th, 2007 and the preservation No. is CGMCC No.2240; the strain MS604 is a gram negative aerobic bacterium and a polymorphous bacillus with a length of 1 to 2 micrometers and a width of 0.3 to 0.4 micrometers, and both ends of cells are round and obtuse; a milk yellow colony is formed on a culture medium and is round and opaque with tidy edges; the strain MS604 is provided with energy storage particles and also provided with a brood cell and a capsule, and N, N, N', N'-tetramethyl-p-phenylenediamine is dyed to be masculine. The biological demanganization and deferrization functional bacterium MS604 has the capacity for removal of Mn<2+> and Fe<2+> in water; the removal rate of Mn<2+> is higher than 79 percent and the removal rate of Fe<2+> is higher than 90 percent.

The invention provides an enteric coated probiotics preparation. The preparation is prepared by mixing and fermenting an aerobic bacterium and an anaerobic bacterium which are mutualistic. The aerobic bacterium is firstly inoculated in a fermentation vessel and is subjected to aerobic culture to the logarithmic phase, the oxygen is closed, the micro-aerobic fermentation continues, the anaerobic bacterium is inoculated in the process of the micro-aerobic fermentation, the aerobic bacterium and the anaerobic bacterium are in harmony and symbiosis, the culture continues under the anaerobic condition to the later period of logarithmic phase or the later period of the stable period of the anaerobic bacterium so as to obtain a fermentation product, and the fermentation product is centrifugally separated, spray-dried and coated with an enteric material to obtain the probiotics preparation. The preparation process is simple, the capacity utilization rate is high, the cost is low, the large-scale production is easy to realize; the aerobic bacterium and the anaerobic bacterium are in harmony and symbiosis in the early period in the mixing and fermenting processes, the compatibility is better; the surface of the probiotics preparation is coated with the enteric material, so that the preparation is insoluble under the environmental conditions of the gastric acid and bile, only starts to dissolve in the intestinal fluid environment, and plays a role in targeted regulation of the intestines.

Electrodes for electrolysis of water, for encouraging growth of algae and aerobic bacteria, for removing suspended solids from wastewater during treatment, or for rendering water sterile and potable have a concrete coating over a metallic or carbon fibre core. The coating is from 2 to 50 mm thick; preferably 5 to 25 mm thick. Preferably, a DC current passed between the immersed electrodes periodically reversed but there is no visible “rusting” at the anode if the DC current is steady. The resistive nature of the concrete tends to suppress concentrations of current upon the electrode surface.

The invention discloses an aerobic and anaerobic mixture biological agent, and relates to the technical field of microorganisms. The aerobic and anaerobic mixture biological agent comprises 5-15 parts of a carrier, 25-33 parts of a microbial agent and 13-18 parts of a biological compound enzyme preparation, the carrier comprises 1.2-4 parts of bacterial cellulose, 0.8-2 parts of nano activated carbon and 0.5-1 part of kaolinite; the microbial agent comprises aerobic flora and anaerobic flora, and the biological compound enzyme preparation is prepared from 1.7 to 2.5 parts of lipase, 2.5 to 3.3 parts of protease and 0.8 to 1.7 parts of cellulase. The invention further discloses a preparation method of the aerobic and anaerobic mixture biological agent. The preparation method comprises four steps. According to the method, four aerobic bacteria and four anaerobic bacteria are adopted, when the dissolved oxygen content in the environment is low, the anaerobic bacteria are rapidly added into dominant bacteria to rapidly degrade organic pollutants in the environment, and along with gradual increase of the dissolved oxygen content in the environment, the aerobic bacteria are gradually bred into dominant bacteria, so the anaerobic bacteria are replaced to continuously degrade the organic pollutants in the environment; different components work cooperatively, so the overall efficient water body treatment effect is maintained.

The invention relates to a preparation method of biological active protein peptide feed containing traditional Chinese herb extracts. The feed consists of biological active protein peptide, a plantain herb extract and an inula herb extract, wherein the biological active protein peptide is a product of fermentation of a vegetable protein aerobic bacterium-anaerobic bacterium combined process and mainly comprises digestible medium and small molecular protein, plant polypeptide and protease. The preparation method comprises the following steps of: 1) weighing required plantain herb and inula herb; 2) extracting the medicinal materials by using 70 to 95 % ethanol water and concentrating until dryness; and 3) mixing with the raw materials of the biological active protein peptide feed uniformly. The feed formula is reasonable; the advantages and the characteristics of active protein peptidase and traditional Chinese herbs are combined; and the effects of increasing the conversion rate of the feed, and preventing and treating diseases are achieved. Therefore, the morbidity of livestock is reduced, the production cost is reduced, healthy products are provided for the market, and the culture benefit is improved.

The invention provides a method for efficiently producing an organic fertilizer. The method comprises the following steps of: uniformly mixing straw powder, a penetrating agent, ethanol and excrementand then carrying out steam explosion to obtain steam-exploded excrement; adding microbial strains, and introducing oxygen to decompose the steam-exploded excrement; centrifugally separating the obtained decomposed excrement; adjusting the water content of the decomposed excrement by using decomposed filtrate; and mixing and aggregating the solid decomposed excrement with the microbial strains, anutritional agent, auxiliary materials and a binder to obtain the granular organic fertilizer. According to the method provided by the invention, by utilizing steam explosion, the decomposition efficiency of the materials is greatly improved, and the production period of the organic fertilizer is shortened; meanwhile, in the decomposition process, the activity of aerobic bacteria is improved through constant temperature, oxygen introduction and decomposition filtrate spraying; and meanwhile, excrement is loosened by slowly turning over the excrement, and contact between the excrement and oxygen is increased, so that decomposition of the excrement is accelerated, the production period of the organic fertilizer is shortened, and the production efficiency of the organic fertilizer is improved.

The invention provides a method and equipment for drying and fermenting feed at low temperature. The method includes the steps of raw material sterilizing, probiotics inoculating, fermenting, drying, material cooling, smashing and finished product packaging; according to the drying step, the material is dried at constant low temperature of 50 DEG C-90 DEG C, according to the fermenting process, the sterilized raw material is inoculated with an aerobic bacterium solution and then subjected to aerobic fermentation, glucosinolate and acid soluble protein content is monitored online, and when the glucosinolate removal rate and acid soluble protein content start to reduce, the raw material is inoculated with a facultative anaerobe solution to be subjected to facultative anaerobe fermentation. The equipment comprises a heat conducting oil furnace, a low-constant-temperature tube bundle drying drum, a rolling airing drum, a pulverizer, a storage silo and a packager. Low constant temperature drying and staged fermentation are combined and work along both lines, nutritive value and quality uniformity of the feed are guaranteed by increasing the probiotics survival amount and improving the detoxifying effect, and meanwhile production cost is reduced.