33 results about "Desulfovibrio" patented technology

The invention provides for methods of treating autism associated with Desulfovibrio overgrowth in the gastrointestinal tract of a patient, said method comprising administering to the patient suffering from said autism a treatment course of aztreonam in an amount effective to treat autism in the patient, thereby treating autism.

A dietary supplement that may contain probiotics from the genera Akkermansia, Bacteriodes, Faecalibacterium, Eubacterium, Escherichia, Collinsella, Desulfovibrio, Clostridium, Mycobacterium, Pediococcus, and Bifidobacterium. The dietary supplement may provide a variety of benefits including weight management, blood sugar management, treatment of irritable bowel syndrome, treatment of Crohn's disease, treatment of diverticulitis, treatment for inflammatory bowel, treatment for dysbiosis, and strengthening the immune system.

In order to solve the problem that conventional soil remediation technology has a single remediation function, can only remedy soil hardening and salinization and cannot reduce the content of heavy metal, the invention provides a microbial soil remediation agent and a soil remediation method. The microbial soil remediation agent is composed of the following substances, by mass: 1-3 parts of bacillus subtilis, 1-5 parts of acidithiobacillus ferooxidans, 1-2 parts of cyanobacteria, 1-2 parts of sulfate reducing bacteria, 1-2 parts of desulfovibrio desulfuricans, 1-2 parts of trichoderma, 2-4 parts of penicillium spinulosum, 2-5 parts of bacillus coagulans, 3-5 parts of rhodopseudomonas palustris, 2-5 parts of garcinococci, and 2-5 parts of cold salt tolerant gingivalis. The microbial soil remediation agent and the soil remediation method of the invention can effectively reduce the heavy metal content of oil, adjust the pH of the soil, reduce the cadmium content of crops and increase theyield of the crops.

The invention relates to a synergistic biological treatment method for washing waste water and amine salt waste liquor produced by capturing CO2 in smoke of a coal-fired power plant. Waste amine salt in amine salt waste liquor produced by a regenerating tower in a flue gas CO2 capturing process is taken as one organic carbon source in a biological treatment process, an anaerobic and aerobic two-stage biotreatment is adopted for treating the washing waste water and the amine salt waste liquor, the washing waste water and the amine salt waste liquor are pumped into an anaerobic biological reaction column by a water pump, nitrate is converted into N2 under the action of denitrifying bacteria, sulphate is converted into S<2-> under the action of Desulfovibrio, organic carbon in organic amine salt is taken as a partial organic carbon source for sulphate reduction bacteria, and amine is converted into ammonia nitrogen. Waste water after anaerobic treatment enters an aerobic biological reaction column, nitration and denitrification of ammonia nitrogen are realized by carrying out intermittent aeration by an air pump, and finally ammonia nitrogen is released into the air in the form of N2; S<2-> generates sulphur under the action of thiobacillus thioparus, simple substance sulphur is recycled by a sulphur separator, and separated waste liquor returns to a washing tower to be recycled; and no pollution is produced in a CO2 capturing process.

The invention discloses a biological ferrous sulfide composite material which comprises ferrous sulfide and synthetic bacteria bonded to the ferrous sulfide .The ratio of the number of microorganisms of the synthetic bacteria to the ferrous sulfate of unit mass is 3.3*107-5*107 cfu/mg .The synthetic bacteria mainly comprise Desulfovibrio and Clostridium .The invention further discloses a uranium-polluted underground water treatment permeation reaction wall based on the biological ferrous sulfide .The uranium-polluted underground water treatment permeation reaction wall comprises a reaction well and a reaction medium .The reaction well is arranged in soil containing uranium-polluted underground water and located on an underground water flowing path, and the top of the reaction well is flush with the ground and provided with an upward first opening .The reaction medium is arranged in the reaction well and is the biological ferrous sulfide composite material .The prepared material and the device have high removal rate for uranium in water, secondary pollution is avoided, regenerability is good, and the requirements of current underground water uranium-polluted permeation reaction wall materials are met.

The invention discloses a composite bacterium, which can be used for the degradation of COD (Chemical Oxygen Demand) and/or organic sulfides and pretreatment for the degradation of garlic processing wastewater. The composite bacterium is obtained by mixing fermentation broth of bacillus megaterium, pseudomonas stutzeri, aspergillus oryzae, klebsiella oxytoca and desulfovibrio desulfuricans, of which bacterial cell concentrations are 20 to 30 percent, 10 to 15 percent, 15 to 35 percent, 10 to 35 percent and 5 to 15 percent respectively. The composite bacterium can be applied to the degradation of COD and/or organic sulfides, and can also be applied to the pretreatment for the degradation of the garlic processing wastewater. By such a biological pretreatment method for the degradation of the garlic processing wastewater, the influence of changes in the conditions of COD and organic sulfide concentrations, water volumes and the like on a degradation effect can be reduced, and use of a plurality of chemical reagents in a subsequent process can be reduced and even avoided; the pretreated wastewater can be discharged up to the standard in an activated sludge treatment system.

The invention discloses application of chitosan oligosaccharide as regulating agent for regulating animal intestinal flora disturbance, the chitosan oligosaccharide, a mixture containing the chitosanoligosaccharide and corresponding application. The polymerization degree of the chitosan oligosaccharide is 2 to 20, so that the intestinal flora disturbance caused by obesity or diabetes or an unreasonable diet structure can be regulated, growth of beneficial bacteria such as Akkermansia, Bifidobacterium and Lactobacillus of an intestinal tract is promoted, and proliferation of harmful bacteriasuch as Desulfovibrio and Helicobacter is obviously inhibited. The invention provides an application method of a clinically-acceptable medicinal preparation or health-care food which is made by usingthe chitosan oligosaccharide alone or a composition prepared from the chitosan oligosaccharide and the beneficial bacteria according to a conventional process. By utilizing the chitosan oligosaccharide, prevention and control of the intestinal disturbance caused by the diabetes, the obesity and the inflammatory bowel disease have an active application value.

The invention discloses a slow-release compound flocculant for reducing acidity of mine water. The slow-release compound flocculant is prepared from the following raw materials in percentage by weight: 87wt%-95wt% of an inorganic compound flocculant and 5wt%-13wt% of a soluble coating material, wherein the soluble coating material wraps the inorganic compound flocculant; the inorganic compound flocculant is a mixture of a microbial carbon source, a coagulant aid and an adsorbent; the soluble coating material is a culture medium mixed with a microbial agent; and the microbial agent is a mixed agent prepared from a desulfovibrio agent, a colourless sulfur bacteria agent and a gluconobacter agent. According to the slow-release compound flocculant, the characteristics of inorganic and biological flocculants are integrated; a chemical dosing mode is improved; the interaction efficiency of various flocculants is increased by multi-step dissolving and slow-release processes; and the efficiency of the agent is improved.

The invention aims to provide a microbial complex flora for eliminating sulfide in sediments. By the aid of the microbial complex flora, problems of narrow ecological niche, incapability of adapting to sediment environments, easiness in being sifting out within a short time, low biomass, slow metabolism and the like of pure bacteria can be solved. The microbial complex flora contains bacillus (Bacillus spp.), vibrio (Vibrio spp.), pseudomonas (Pseudomonas spp.) and desulfovibrio (Desulfovibrio spp.). The microbial complex flora has the advantages that bacteria of the microbial complex flora come from the sediments in inshore culture zones with high sulfide contents and are acquired by means of domestication, and accordingly adaptation procedures due to severe environment difference can be omitted during application; the excellent stability of the structure of the flora can be kept in sulfide removing procedures.

The present invention belongs to the field of biological technology, and relates to a kind of marine bacterium with strict araerobic activity, active extract of said bacterial strain culture and its preparation method, and the application value of said extract in the preparation of antibacterial medicine. Said invention provides a marine bacterial strain DM 18 obtained from the Huanghai sea of China by means of separation process, it is defined as culture fluid of Desulfovibrio desulfuricans. Its ethyl acetate extraction phase and n-butyl alcohol extraction phase are undergone the processes of silica-gel column chromatography and ceversal high-pressure liquid-phase separation so as to obtain two oil-like substances of effective component which have resistance for hay bacillus and staphylococcus aureus, and have potential application for preparing antibacterial medicine.

The invention relates to a method for treating chicken farm waste water by a desulfovibrio microbial fuel cell. The method includes the steps: activating and then inoculating desulfovibrio into culture solution, and culturing the closed desulfovibrio in an incubator at constant temperature until a last phase of a logarithmic phase; mixing the cultured bacterial solution, nutrient solution, buffersolution and sludge according to the volume ratio of (1-4):(1-4):(1-2):(4-7), inoculating mixture into an anode chamber of the microbial fuel cell, enabling the bacterial solution to be suspended in anode solution or adhered on an anode, standing to degrade the chicken farm waste water by the aid of the bacterial solution to generate electrons and protons, and enabling the electrons to reach a cathode through an external circuit and penetrate a middle diaphragm to reach protons of the cathode to form a current loop to generate power; updating anode solution once every 2-7 days, and retaining 10% of original mixture in the original anode chamber. The method has the advantages that the desulfovibrio is applied to microbial fuel cells based on treatment of chicken farm waste water, the degradation capability of the chicken farm waste water can be effectively improved, and electric energy is generated.

The invention relates to a method for treating bird waste water by a novel mixed bacterium microbial fuel cell. The method includes the steps: activating and then inoculating comamonas testosteroni and desulfovibrio into culture solution; culturing the closed comamonas testosteroni in a shaker, culturing the closed desulfovibrio in an incubator at constant temperature until a last phase of a logarithmic phase; uniformly mixing the cultured comamonas testosteroni and the cultured desulfovibrio, mixing mixture, nutrient solution, buffer solution and sludge according to the volume ratio of (1-3):(2-5):(1-3):(3-7), inoculating mixture into an anode chamber of the microbial fuel cell, enabling floras to be suspended in anode solution or adhered on an anode, and standing to degrade the bird waste water and generate power; updating anode solution once every 2-7 days, and retaining 10% of original mixture in the original anode chamber. The method has the advantages that mixed bacteria of the comamonas testosteroni and the desulfovibrio are applied to microbial fuel cells based on treatment of bird waste water, the degradation capability of the bird waste water can be effectively improved,and electric energy is generated.

The invention discloses an acidic soil conditioner; a microbial composite bacterial agent is prepared by mixing Desulfovibrio desulfuricans, Bacillus subtilis, Bacillus megaterium and Bacillus licheniformis according to a mass ratio of (3-10):1:1:1. The prepared microbial composite bacterial agent is mixed with plant ash, peat and nitrogen phosphorus potassium fertilizer at a mass ratio of (1-3):(50-100):(100-200):(7-12). The acidic soil conditioner is capable of improving activity of microbes in acidic soil and lowering the content of sulfate radicals in the acidic soil while adjusting pH of the acidic soil, comprehensive soil conditioning is achieved, and crop yield is increased.

The invention discloses a novel composite microbial system for degrading straw stalks as well as a preparation method and application thereof. The novel composite microbial system comprises bacteria such as Myroides, Ignatzschineria, Wohlfahrtiimonas, Alcaligenes, Bacteroides, Macellibacteroides, Escherichia, Arcobacter and Desulfovibrio. The method comprises the following steps: crushing live earthworms, adding the earthworms and collected microbial samples into a conical flask filled with a fresh selective medium for screening the composite microbial system; screening the selective medium with the highest degradation ability in the composite microbial system; determining strains in the composite microbial system through gene sequencing, and preparing a straw-decomposing inoculants to be applied to degrading the straw stalks. According to the synergistic effects among the strains, cellulose, hemicelluloses and lignin in the straw stalks can be synchronously degraded, and the degradation efficiency is high.

The invention provides a green sludge curing agent and application of the green sludge curing agent in sludge solidification, and belongs to the field of sludge treatment. The green sludge curing agent is prepared from the following components in parts by weight: 3-8 parts of microcrystalline cellulose, 30-50 parts of fly ash, 20-40 parts of calcium sulfate, 5-10 parts of silicate and 5-10 parts of spinel, wherein the microcrystalline cellulose is preferably organic-acid-anhydride-modified microcrystalline cellulose. The application of the green sludge curing agent in sludge solidification comprises the following steps that S1, microbial treatment is carried out, specifically, powdered sulfur , iron powder, a desulfovibrio medium and sludge are added into a container, desulfovibrio is inoculated under the anaerobic condition, anaerobic fermentation is carried out for 5-10 days to obtain fermented sludge; S2, sterilization is carried out, specifically, a fungicide is added to the fermented sludge, the mixture is stirred for 5-10 hours to obtain sterilized sludge; and S3, curing is carried out, specifically, the green sludge curing agent is added to the sterilized sludge, and the mixture is stirred evenly and stands still, that is, cured sludge is obtained. The green sludge curing agent has excellent mechanical performance, thermal stability and water resistance.

The invention provides a sulfate reducing bacterium and application thereof, the sulfate reducing bacterium is a desulfurization vibrio, is named as Desulfovibrio desulfuricans strain REO-01, is preserved in China General Microbiological Culture Collection Center on January 7, 2022, the address is No. 3, No.1 yard, Beichen West Road, Chaoyang District, Beijing, and the strain preservation number is CGMCC NO.24267. The invention further provides a preparation method of the sulfate reducing bacterium. The sulfate reducing bacteria can effectively solve the problem of low sulfate tolerance concentration of the existing sulfate reducing bacteria.