SBIR Phase I: Electrochemical Disinfectant Generator for Multiple In-Situ Applications

SBIR 第一阶段：用于多种原位应用的电化学消毒剂发生器

• 批准号: 0128511
• 负责人: Charles Tennakoon
• 金额: $ 10万
• 依托单位: Lynntech, Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-01-01 至 2002-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0128511&HistoricalAwards=false
• 关键词: SBIR; Phase; Electrochemical; Disinfectant; Generator

This Small Business Innovation Research (SBIR) Phase I Project will focus on the development of an electrochemically operated organic peroxy acid generator. Peroxyacids are popular disinfectants that can eliminate even resistant microorganisms (i.e. spores, viruses). Peracids produce biodegradable end products, are effective at dilute concentrations (ppm levels), are safe for use even in food preparation applications, and are thus applicable to many point-of-use applications in homes, restaurants and hospitals. These include the use of peroxylactic or peroxyacetic acids for diverse uses, including: i) preventing thebuild up of heterotrophic bacteria in water treatment appliances, ii) destroying pathogens in water and on food surfaces, iii) sterilizing medical devices, and iv) sanitizing food processing equipment by incorporating a clean-in-place capability. The conventional method of manufacturing peroxy acids involves mixing concentrated hydrogen peroxide, organic acid, and inorganic acid catalyst (concentrated sulfuric acid) with numerous stabilizers and additives. In the proposed method, peracids can be generated and used on demand using oxygen or air, thus eliminating the need for hydrogen peroxide and sulfuric acid. In Phase I, optimization of the electrocatalyst (to improve current and energy efficiencies), preliminary cell design and catalyst configuration, and biocidal properties of the peracid product will be conducted.There is a considerable need for miniature and scalable clean-in-place devices in point-of-use applications in homes, hotels, food service establishments and hospitals. Many equipment manufacturers are trying to incorporate a self cleaning capability into their existing product lines due to concerns of microbial contamination, especially one that requires minimal user interaction, is cost effective, and environmentally friendly. In water treatment applications alone, the market for these decives is estimated to be over $1billion annually in the U.S. and $3 billion worldwide.

该小型企业创新研究 (SBIR) 第一阶段项目将重点开发电化学操作的有机过氧酸发生器。过氧酸是流行的消毒剂，甚至可以消除耐药微生物（即孢子、病毒）。 过酸产生可生物降解的最终产品，在稀释浓度（ppm 水平）下有效，即使在食品制备应用中也可以安全使用，因此适用于家庭、餐馆和医院的许多使用点应用。其中包括将过氧乳酸或过氧乙酸用于多种用途，包括：i) 防止水处理设备中异养细菌的积累，ii) 消灭水中和食品表面的病原体，iii) 对医疗设备进行消毒，以及 iv) 通过采用就地清洁功能对食品加工设备进行消毒。制造过氧酸的传统方法包括将浓过氧化氢、有机酸和无机酸催化剂（浓硫酸）与多种稳定剂和添加剂混合。在所提出的方法中，可以使用氧气或空气按需生成和使用过酸，从而消除了对过氧化氢和硫酸的需求。在第一阶段，将进行电催化剂的优化（以提高电流和能源效率）、初步电池设计和催化剂配置以及过酸产品的杀菌特性。家庭、酒店、食品服务机构和医院的使用点应用对微型和可扩展的就地清洁设备有相当大的需求。 出于对微生物污染的担忧，许多设备制造商正在尝试将自清洁功能纳入其现有的产品线中，尤其是需要最少用户交互、具有成本效益且环保的自清洁功能。 仅在水处理应用中，这些设备的市场估计在美国每年就超过 10 亿美元，在全球范围内为 30 亿美元。