SBIR Phase I: Real Time Biofouling Monitor

SBIR 第一阶段：实时生物污垢监测

• 批准号: 9860746
• 负责人: Paul Millard
• 金额: $ 9.87万
• 依托单位: SENSOR RESEARCH AND DEVELOPMENT CORPORATION
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-01-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9860746&HistoricalAwards=false
• 关键词: SBIR; Phase; Real; Time; Biofouling

9860746 Biofouling, the growth of microbiologically active films (biofilms) on surfaces, adversely affects both the short and long term performance of many aqueous systems. Efficiency of heat exchangers is degraded by the thermal resistance of biofilms, increased pressure and decreased flow accompany the constriction of piping systems fouled with biofilms, and microbiologically influenced corrosion (MIC) contributes to the reduction of system lifetimes. Open-loop seawater or fresh water systems are of particular concern because biocide contaminant levels in discharge water are subject to regulation.Monitoring biofilm development in real time would allow for optimization of biofouling control strategies, which would reduce system operating and maintenance costs and reduce environmental pollution.In this Phase I effort, Sensor Research and Development Corporation intends to demonstrate the feasibility of utilizing the mature technology of the quartz crystal microbalance (QCM) in a novel configuration to monitor the growth of seawater biofilms in real time. The monitor is expected to be low cost, compact, and rugged; allowing for its widespread use in the control of biofouling in many applications. A real time biofouling monitor will provide information on the development of biofilms on the surfaces of piping and cooling systems prior to the manifestation of overall system performance degradation, thereby allowing for control strategies that will minimize biocide use, maximize system performance, and provide confidence that system parameters are within an acceptable range. Markets include: shipboard cooling systems, both seawater and freshwater based; on-shore power plants utilizing seawater or freshwater cooling; aquaculture seawater systems; and food industry processing systems.

9860746生物污垢，即微生物活性膜(生物膜)在表面的生长，对许多水体系的短期和长期性能都有不利影响。生物膜的热阻降低了换热器的效率，被生物膜污染的管道系统的压力增加和流量减少，以及微生物腐蚀(MIC)导致了系统寿命的缩短。开环海水或淡水系统尤其值得关注，因为排放水中的生物杀伤性污染物水平是受监管的。实时监测生物膜的发展将允许优化生物污染控制策略，这将减少系统的运行和维护成本，并减少环境污染。在这一阶段的工作中，传感器研发公司打算证明在一种新的配置中利用成熟的石英晶体微天平(QCM)技术来实时监测海水生物膜生长的可行性。预计该监控器成本低、结构紧凑、坚固耐用，可广泛用于许多应用中的生物污垢控制。实时生物污垢监测将在系统整体性能退化表现出来之前，提供管道和冷却系统表面生物膜发展的信息，从而制定控制策略，最大限度地减少杀菌剂的使用，最大限度地提高系统性能，并确保系统参数在可接受的范围内。市场包括：基于海水和淡水的船用冷却系统；利用海水或淡水冷却的岸上发电厂；水产养殖海水系统；以及食品工业加工系统。