A NEW POINT-OF-USE DISINFECTION METHOD

一种新的使用点消毒方法

• 批准号: 6072107
• 负责人: G DUNCAN HITCHENS
• 金额: $ 36.9万
• 依托单位: LYNNTECH, INC.
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-30 至 2002-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6072107
• 关键词: bioengineering /biomedical engineering; biomedical equipment development; communicable disease control; disinfectants; ozone; water pollution; water quality; water supply; water treatment

Outbreaks of infectious diseases caused by waterborne microbes are a major public health concern. Infectious agents can be transmitted from many sources, including drinking water and recreational water and can occur even in highly purified water sources if not properly maintained. A potential means to combat the transmission of disease from water is through the widespread implementation of point-of-use disinfection systems. However, many existing disinfection methods are not viable as point-of-use treatments because of cost and process limitations. The aim of the work described in this proposal is to develop a small scale point-of- use ozone generator. Ozone is attractive because it is a potent biocide that produces relatively few harmful reaction by products; however, ozone is difficult and expensive to generate on a small scale. The Phase I study demonstrated the feasibility of a small scale seif-contained ozone generator that can be mass produced at low cost. The new method has the potential to provide an important water treatment capability to small or economically depressed communities, rural communities, high density neighborhoods and underdeveloped regions of the world. Hospitals requiring contaminant-free drinking water and ultra pure cleaning water could also benefit from this type of treatment. The Phase II will focus on: (l) optimization of the ozone generator's design; and, (2) optimization of the device's water disinfection arid operational capabilities. PROPOSED COMMERCIAL APPLICATION: There is a considerable need for disinfection technology to complement existing point-of -use water purification methods. The market opportunity is substantial, given the large number of point-of-use devices used in health care facilities, restaurants, food service establishments, hotels and in the home. This market is estimated to be worth over $1.5 billion annually in the U.S. ($3 billion for the rest of the world). In support of the commercialization activities and long term commercialization goals, two patents on electrochemical ozone generation have issued to Lynntech, Inc. A third will issue in approximately 3 months.

由水生微生物引起的传染病爆发是一个重大的公共卫生问题。传染性病原体可以从许多来源传播，包括饮用水和娱乐用水，如果维护不当，即使在高度净化的水源中也可能发生。防治水传播疾病的一个潜在手段是广泛实施使用点消毒系统。然而，由于成本和工艺的限制，许多现有的消毒方法作为使用点处理是不可行的。本提案中所述工作的目的是开发一种小型使用点臭氧发生器。臭氧是有吸引力的，因为它是一种有效的生物杀灭剂，产生相对较少的有害反应副产物;然而，臭氧在小规模上产生困难且昂贵。第一阶段的研究证明了一个小规模的自给式臭氧发生器，可以在低成本下大规模生产的可行性。这种新方法有可能为世界上的小型或经济落后的社区、农村社区、高密度社区和欠发达地区提供重要的水处理能力。需要无污染饮用水和超纯清洁水的医院也可以从这种处理中受益。 第二阶段将侧重于：（1）臭氧发生器设计的优化;以及（2）设备水消毒和操作能力的优化。拟定商业应用：非常需要消毒技术来补充现有的使用点水净化方法。鉴于医疗保健机构、餐馆、食品服务机构、酒店和家庭中使用的大量使用点设备，市场机会是巨大的。据估计，美国这个市场每年价值超过15亿美元（世界其他地区为30亿美元）。为了支持商业化活动和长期商业化目标，Lynntech，Inc.已获得两项关于电化学臭氧生成的专利。第三个将在大约3个月内发布。