Disinfecting Drinking Water Via Hybrid Ozone Systems

通过混合臭氧系统对饮用水进行消毒

• 批准号: 6403903
• 负责人: John J Bowser
• 金额: $ 10万
• 依托单位: COMPACT MEMBRANE SYSTEMS, INC.
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-30 至 2003-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6403903
• 关键词: Cryptosporidium; antisepsis; disinfectants; environmental contamination; nitrobenzene; ozone; plants; technology /technique development; water supply; water treatment

The ozonation of drinking water is attractive for small communities that employ local wells or surface water sources provided it can be done at a reasonable cost. Although chlorine is widely used and is cheaper to use that ozone, its use results in the formation of carcinogenic trihalomethanes. Also chlorine has been found to be ineffective in the treatment of Cryptosporidium and viruses. Under an SBIR Phase I grant from the NIH, Compact Membrane Systems (CMS) demonstrated at lab-scale that CMS' membrane technology could be used to effectively ozonate water contaminated with organics, Cryptosporidium, humic acidd, bacteria, and viruses. Recently, CMS identified an ozone hybrid process that is 50-400 times more effective than ozone alone in destroying organic contaminants (no data yet on biologicals). In Phase I, CMS will build and evaluate this hybrid system for removal of Cryptosporidium, nitrobenzene, and humic acid. Long term (7+ days) testing and economic evaluations combined with hybrid system performance will provide understanding of system potential for enhancing cost effective production of quality non-carcinogenic (trihalomethane) drinking water. Focus will be initially on smaller facilities (serving 50, 000 people or less). PROPOSED COMMERCIAL APPLICATION: The proposed ozone hybrid system will provide clean drinking water free of organics, Cryptosporidium, humic acids, bacteria, and viruses in a cost effective way for small communities.

饮用水的臭氧化对使用当地井或地表水源的小社区具有吸引力，只要可以以合理的成本进行。 尽管氯气被广泛使用，并且使用该臭氧更便宜，但其使用导致了致癌三甲烷的形成。 还发现氯在治疗隐孢子虫和病毒方面无效。 在实验室阶段证明，在NIH的SBIR I期授予下，CMS的膜技术可用于有效地污染有机物，隐孢子虫，腐殖酸，细菌和病毒。 最近，CMS确定了一个臭氧混合过程，该过程在破坏有机污染物方面的效率比单独使用的臭氧高50-400倍（尚无生物学的数据）。 在第一阶段，CMS将构建和评估该混合系统以去除隐孢子虫，硝基苯和腐殖酸。长期（7天以上）测试和经济评估结合混合系统的性能，将为系统的潜力提供增强成本有效生产优质非car癌（三甲烷）饮用水的潜力。 重点最初将放在较小的设施上（为50,000人或更少的人提供服务）。 拟议的商业应用： 拟议的臭氧混合动力系统将以具有成本效益的小社区的方式提供清洁的饮用水，不含有机物，隐孢子虫，腐殖酸，细菌和病毒。