首页> 外国专利> BIOREACTOR FOR THE IN SITU STUDY OF MICROBIAL BIOFILMS INDUCING CORROSION ON METAL SURFACES.

BIOREACTOR FOR THE IN SITU STUDY OF MICROBIAL BIOFILMS INDUCING CORROSION ON METAL SURFACES.

机译:生物反应器用于微生物在金属表面腐蚀的原位研究。

摘要

A portable bioreactor is provided for the in situ study of mesophilic and thermophilic corrosion inducing microbial biofilms on metal surfaces used in any industry, such as oil, chemical, petrochemical, oil refining, food, metallurgical, paper. The bioreactor's configuration is a "batch" type for turbulent and piston-driven laminar flow, operating by cycles, with the continuous circulation of fluid. A culture medium, or industrial operation or production fluids containing microbiota is introduced into the load of the receiving body, thus the bioreactor is single phase. The bioreactor comprises a support section for corrosimetric test coupons that are in touch with the fluid under dynamic conditions, such as found in the fluid carrying pipelines, naturally promoting the formation of the microbial biofilm. The coupons are removed for analysis to follow the kinetics of microbial biofilm development. The operating conditions comprise a section having sufficient turbulence for the fluid to homogenize and maintain a temperature of 20 to 80° C. necessary for the mesophilic or thermophilic microorganism's growth. Salinity can be in the range 2 to 200 ppm (NaCl) and the pH range from 2 to 10; the bioreactor's operating conditions conform to the physicochemical characteristics of the fluid from the industry to be assessed.
机译:提供了一种便携式生物反应器,用于原位研究在任何行业(例如石油,化工,石化,炼油,食品,冶金,造纸)中使用的金属表面上的嗜温和高温腐蚀诱导微生物生物膜。生物反应器的配置为“分批”类型,用于湍流和活塞驱动的层流,通过循环进行操作,并持续进行流体循环。将包含微生物群的培养基或工业操作或生产液引入接收体的负载中,因此生物反应器是单相的。该生物反应器包括用于腐蚀性测试试样的支撑部分,该试样在动态条件下与流体接触,例如在流体输送管道中发现的,自然促进了微生物生物膜的形成。取出试样,以进行分析以追踪微生物生物膜发育的动力学。操作条件包括具有足够湍流的部分,以使流体均匀并保持中温或嗜热微生物的生长所需的20至80℃的温度。盐度范围为2至200 ppm(NaCl),pH范围为2至10;生物反应器的操作条件符合要评估的行业流体的物理化学特征。

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