3 results about "Geobacter" patented technology

This invention belongs to the field of microbiology, specifically relating to a biofilm sensor and a method for detecting biotoxicity using it. The specific technical solution involves a bacterial preparation comprising *Geobacterium*, *Acinetobacter*, and *Pseudomonas*. A sensor is prepared using this bacterial preparation and used to detect the biotoxicity of pollutants. This invention provides a novel biofilm sensor that, based on the high electroactivity of *Geobacterium* and by limiting the amount of carbon source used during cultivation, ultimately achieves an electroactive biofilm with a thickness lower than that of existing technologies, and realizes extremely high detection sensitivity, possessing enormous potential for detection applications.

This application discloses an in-situ remediation method for uranium contamination and its application. The method involves the interaction between microorganisms and pyrite, driving pyrite hydrolysis, oxidation, atomic rearrangement, and biomineralization. This immobilizes the uranium contaminant within the iron oxide lattice of the reconstructed product, thus remediating the contaminated area. The microorganisms include one or more of Brucella, Geobacterium, or Clostridium. If the uranium-contaminated area contains microorganisms, natural humic substances are used as electron donors to stimulate the in-situ microorganisms. A natural humic substance solution is injected into the uranium-contaminated area via a circulating pumping method to stimulate the in-situ microorganisms. The concentration of the natural humic substance solution is 0.05–5 g / L, and the dosage is 5–500 g / day. This application fully considers and rationally utilizes in-situ mineral, microbial, and geochemical resources, relying on the in-situ mineral and microbial interactions to save engineering costs and achieve high remediation efficiency.

This invention discloses a biofilm-forming microbial consortium with acrylonitrile degradation function, its preparation method, and its application. The microbial consortium consists of *Agrobacterium parakneissus*, *Burkholderia szechuanensis*, *Trichophyton spp.*, *Rhodococcus rubrum*, and *Mycobacterium tumefaciens*; the ratio of viable bacteria of *Burkholderia parakneissus*, *Burkholderia szechuanensis*, *Trichophyton spp.*, *Oligotrophomonas spp.*, and *Trichophyton spp.* is 3:1:1:1:1. This microbial consortium has a stable microbial community structure and can rapidly form a stable biofilm on the surface of biofilter packing material, exhibiting high acrylonitrile degradation efficiency. It is simple to operate, low in cost, and requires only a small amount of additional inorganic nutrients during treatment, without causing secondary pollution, making it an environmentally friendly technology. Its application prospects in the treatment of acrylonitrile-containing wastewater (gas) are broad.