NEW MEMBRANES FOR CARCINOGEN REMOVAL IN WATER TREATMENT

用于去除水处理中致癌物的新型膜

• 批准号: 6072012
• 负责人: Stuart Nemser
• 金额: $ 37.24万
• 依托单位: COMPACT MEMBRANE SYSTEMS, INC.
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-01-17 至 2002-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6072012
• 关键词: Cryptosporidium; artificial membranes; chemical carcinogen; chlorine; disinfectants; method development; ozone; technology /technique development; water treatment

DESCRIPTION (Adapted from Applicant's Abstract): 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 than ozone, it's use results in the formation of carcinogenic trihalomethanes. Also, chlorine has been found to be ineffective in the treatment of cryptosporidium. Under a SBIR Phase I grant from the NIH, Compact Membrane Systems (CMS) demonstrated at lab-scale that CMS' membrane technology could be successfully used to achieve efficient ozone levels that would be commercially practical, while membrane lifetimes in excess of 1300 hours when exposed to ozone and water were also observed. In Phase II the investigator will a) scale-up device size for pilot-scale water treatment operations, b) employ CMS' membrane technology to enhance the device performance and longevity, c) demonstrate efficient ozonation of water streams spiked with Cryptosporidium with the aid of animal studies, d) undertake pilot-scale experiments at the local water treatment plant, and e) develop detailed economics with respect to system size and calculate cost trade-off for system size versus costs per 1000 gallons of water treated. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE

描述(改编自申请者摘要)：饮用水的臭氧氧化 水对使用当地水井或地表的小社区很有吸引力 水源，只要能以合理的成本完成。虽然氯 被广泛使用，而且比臭氧更便宜，它的使用导致了 形成致癌的三卤代甲烷。此外，氯已被发现是 对隐孢子虫的治疗无效。根据SBIR第一阶段拨款 来自美国国立卫生研究院的致密膜系统(CMS)在实验室规模上展示了 CMS的膜技术可以成功地用于实现高效臭氧 商业上可行的水平，而膜的寿命超过 还观察了暴露在臭氧和水中的1300小时。 在第二阶段，调查员将a)扩大中试规模水的装置尺寸 处理操作，b)使用CMS的膜技术来增强设备 性能和寿命，c)展示了对溪流的有效臭氧氧化 在动物研究的帮助下添加隐孢子虫，d)进行 在当地水处理厂进行中试试验，以及e)开发 关于系统规模和计算成本权衡的详细经济性 系统规模与每1000加仑水处理成本的对比。 建议的商业应用：不可用