52 results about "Providencia" patented technology

The invention discloses an ammonia nitrogen-removed compound microorganism microbial agent. The ammonia nitrogen-removed compound microorganism microbial agent is prepared from Providencia rettgeri, Microbacterium lactium, Lactobacillus delbrueckii and Rhodococcus coprophilus in a volume ratio of 5 to 2.5 to 1 to 5. The invention further discloses application of the compound microorganism microbial agent in ammonia nitrogen-containing wastewater treatment. The four bacteria are reasonably matched and are combined by virtue of an adsorption method and an embedding method to form immobilized cell particles, so that the ammonia-nitrogen degradation capacity and stability of the compound microorganism microbial agent are remarkably enhanced; a dominant bacterial community can be immediately formed after the compound microorganism microbial agent is applied to denitrification and treatment process of sewage, river way landscape water and the like, the treatment time is short, and ammonia and nitrogen indexes of the sewage are rapidly decreased; and meanwhile, the compound microorganism microbial agent has an aerobic denitrification function and further has relatively good effect of removing COD, and accumulation of nitrite and nitrate is avoided.

The invention relates to a microbe composite bacterial liquid comprising live bacteria of clostridium thermopalmarium, clostridium thermosuccinogenes, brevibacillus borstelensis, paenibacillus barengoltzii, bacillus subtilis, pseudomonas mendocina, and providencia rettgeri. The invention also provides a bacterial preparation prepared by using the composite bacterial liquid. The bacterial preparation is used for preparing an organic fertilizer. According to the invention, with the composite microbe bacterial liquid, during a composite fertilizer utilization process, the dosage of inorganic composite fertilizer can be reduced, such that production cost can be reduced. Also, with a synergetic effect provided by the microbe bacterial preparation, when dosages of nitrogen, phosphorous and potassium in organic-inorganic composite fertilizers are low, agricultural and forestry waste stalks with low prices and rich organic substances such as nitrogen, phosphorous, potassium and calcium are converted into micro-molecular substances such as monosaccharide and oligosaccharide which can be utilized by plants. Therefore, a relatively high crop yield is obtained, and a substantial yield increasing effect is provided. Agriculture in our nation has a severe dependence on chemical fertilizers. With the composite bacterial liquid provided by the invention, the situation can be changed, and agricultural ecological protection can be enhanced.

The invention discloses a high-efficiency denitrification compound microbial inoculum, and preparation and an application thereof, and belongs to the field of biotechnology. The microbial inoculum forwastewater treatment mainly includes six strains including nitrobacter sp, nitrosomonas sp, alcaligenes aquatilis, paracoccus nitrovorans, bacillus cereus, providencia vermicola and the like. A culture method includes enrichment, purification and enlarged culture of bacteria; the used microbial inoculum has the advantages of high denitrification efficiency, short domestication time, salt tolerance and the like, and is suitable for large-scale production. The obtained microbial inoculum can effectively treat high ammonia-nitrogen wastewater. The microbial preparation still has good denitrification ability under the condition of 2% total salt, solves the limitation of high-salt environment on a traditional biological denitrification method, and has broad application prospect and good socialbenefits.

The invention discloses a strain Pr-nj01 having insecticidal activity, an insecticidal agent and application thereof. The strain Pr-nj01 is identified as Providencia rettgeri, is preserved in the China center for type culture collection on May 10, 2017 and has a preservation number of CCTCC NO: M2017251. The separated and screened strain Pr-nj01 having insecticidal activity can be used for preventing and treating pests in fields, has broad-spectrum killing effects on pests in fields, can kill lepidoptera and hemiptera pests in fields and has good killing effects. The insecticidal agent is prepared through simple processes and has the advantages of low production cost, use convenience and good insecticidal effects. Through use of the insecticidal agent, chemical pesticide is reduced. The strain Pr-nj01 has the important significance for protecting the ecological environment and ensuring food safety.

The invention discloses a preparation method and application of a providencia stuartii enzyme agent. According to the preparation method, with providencia stuartii CCTCC M 2017738 as a strain, the providencia stuartii enzyme agent is prepared through expanding propagation of a bacterial suspension and ultrasonic crushing extraction of a degrading enzyme agent. The degrading enzyme agent can be applied to efficient degradation of dimethachlon, vinclozolin and iprodione in plants such as oilseed rape, Chinese cabbage, purple pakchoi, lettuce, fragrant-flowered garlic, cucumbers, tomatoes, peppers, potatoes and tobaccos, soil and water. The providencia stuartii enzyme agent has the advantages of being good in quick-acting performance, environmentally friendly, capable of achieving an obviouseffect, low in cost, easy to popularize and the like.

The invention discloses a preparation method and an application of a Providencia stuartii immobilized bacterium. The immobilized bacterium takes Providencia stuartii as a strain and takes sodium algaacid and bamboo charcoal as immobilized materials, and the providencia stuartii is effectively embedded to prepare the immobilized bacterium. The collection number of the Providencia stuartii strain is CCTCC M2017738. The immobilized bacterium can be applied to high-effective degradation of dimethachlon, vinclozolin and iprodione in soil and water. The immobilized bacterium has the advantages of good persistence, environmental friendliness, remarkable effect, low cost, easiness in popularization and the like.

The invention discloses a strain of Providencia rettgeri with the ability to degrade aniline and denitrify and its application. The bacterium is named Providencia rettgeri (Providencia rettgeri) Y15‑7 and was released on August 26, 2019. It was deposited in the China Center for Type Culture Collection, and the deposit number is CCTCC NO: M 2019664. The Providencia rettgeri Y15-7 can degrade aniline quickly under anoxic and aerobic conditions, and can convert part of TN into gaseous nitrogen, and can be used in second carbon sources such as glucose or sucrose and In the presence of organic nitrogen such as yeast extract and peptone, and under high salinity conditions, the degradation and denitrification of aniline has broad application prospects in the actual wastewater treatment with complex water quality.

The invention discloses providencia vermicola and application of providencia vermicola in preparing antibacterial drugs. The preservation number of providencia vermicola No. 22 is CCTCC No. M2013696. The providencia vermicola No. 22 has antagonism, so that the providencia vermicola No. 22 can be used for preparing preparation for preventing and controlling vibrio alginolyticus or preparing assistant hemolysis vibrio preparation; the preparation for preventing and controlling vibrio alginolyticus or the assistant hemolysis vibrio preparation can be used for beneficial microbial preparation to replace chemical medicine, improves water quality, and eliminates vibrio alginolyticus or assistant hemolysis vibrio in an aquatic product cultivation system, so that damage to aquatic product cultivation objects from the vibrio alginolyticus or assistant hemolysis vibrio is prevented, the development of the aquatic product cultivation industry is promoted, aquatic products are prevented from carrying the vibrio alginolyticus or assistant hemolysis vibrio, and health and safety of human beings are ensured.

The invention belongs to the technical field of biological treatment of environmental pollutants, and specifically discloses a high-efficiency Providencia sp. 2D that can completely degrade dibutyl phthalate. The strain was released on January 22, 2015 It was deposited in the China Center for Type Culture Collection (CCTCC) in Japan, and the deposit number is CCTCC M 2015057. The strain degraded more than 80% of the high-concentration DBP (1000 mg / L) in 72 h, and almost completely degraded the low-concentration DBP (200 mg / L); the strain was also able to degrade phthalic acid, an intermediate product of DBP , and eventually DBP is completely mineralized. The strain has high-efficiency DBP degradation ability, which greatly supplements the database of DBP-degrading bacteria. It has a good application prospect.