Microbial Biofilms: Mixed Populations, Spatial Gradients, and Corrosion

微生物生物膜：混合种群、空间梯度和腐蚀

• 批准号: 8714639
• 负责人: William Characklis
• 金额: $ 10.02万
• 依托单位: Montana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-03-01 至 1990-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8714639&HistoricalAwards=false
• 关键词: Microbial; Biofilms; Mixed; Populations; Spatial

One of the greatest threats to maximum performance and system reliability in industrial equipment is fouling and corrosion of the equipment surfaces. Fouling and corrosion combined cost the U.S. billions of dollars annually. Much of the fouling is due to biofilms forming on equipment surfaces in contact with water and significant amounts of corrosion result from the resultant microbial activity at the equipment surface (generally a metal alloy). Biodeterioration has been observed on many materials including metals, concrete, wood, and plastics. Despite the concern over microbial corrosion, most of its literature contains anecdotal material. This investigation focuses on microbial corrosion of metals and metal alloys. Measurements will focus on defining the metal-biofilm interface through the use of microelectrodes and real time electrochemical monitoring of corrosion processes. Microbial process engineering techniques will integrate the measurements in a model for describing/predicting microbial corrosion in industrial environments. New instrumentation or new uses for current instrumentation related to detecting, identifying, and monitoring microbial corrosion processes are also anticipated outcomes of the research.

最大性能和系统性能的最大威胁之一 工业设备的可靠性是污垢和腐蚀， 设备表面。 污垢和腐蚀的综合成本 每年数十亿美元。 大部分污垢是由于 在与水接触的设备表面上形成生物膜， 大量的腐蚀来自于 在设备表面（通常是金属）的微生物活性 合金）。 在许多材料上都观察到生物降解 包括金属、混凝土、木材和塑料。 尽管 关注微生物腐蚀，其大部分文献包含 轶事材料 本研究的重点是微生物 金属和金属合金的腐蚀。 测量将侧重于 通过使用以下物质限定金属-生物膜界面： 微电极和真实的时间电化学监测 腐蚀过程 微生物过程工程技术 将把测量结果整合到一个模型中， 描述/预测工业中的微生物腐蚀 环境. 新的仪器或新的用途， 与探测、识别和监控有关的仪器 微生物腐蚀过程也是 研究