EAPSI: Identifying the feasibility and cost effectiveness of ozone as a treatment technology in water reuse systems

EAPSI：确定臭氧作为水回用系统处理技术的可行性和成本效益

• 批准号: 1415103
• 负责人: Erica Marti
• 金额: $ 0.51万
• 依托单位: Marti Erica J
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-06-01 至 2015-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1415103&HistoricalAwards=false
• 关键词: EAPSI; Identifying; feasibility; cost; effectiveness

Water reuse refers to the advanced treatment of wastewater for intentional reuse options, such as irrigation or drinking water, and it is usually associated with water scarcity. Some water contaminants occur as a result of disinfection. N- Nitrosodimethylamine (NDMA) is one of those contaminants of particular concern for potable water reuse as drinking water, since it is believed to be a carcinogen or cancer-causing agent. This research will investigate the use of ozone to reduce NDMA formation in water reuse systems. Australia is a leader in water reuse projects, which is in part due to their arid climate and limited water supply. This research will be conducted in collaboration with Drs. Jeff Charrois and Cynthia Joll, who are noted experts on NDMA and water reuse, at Curtin University in Australia. Ozone is an effective treatment for disinfection, non-selective destruction of potentially harmful organic compounds, and removal of taste, odor and color. However, some treated wastewaters contain compounds that react with ozone to directly form NDMA during treatment. Since the compounds or precursors that form NDMA with ozonation are not well established, the only way to determine the potential for NDMA formation is through direct testing. At this time, Australian water reuse projects do not use ozone as a treatment step. The aims of this research are to 1) determine the potential of Australian wastewaters for direct NDMA formation with ozone, 2) investigate pre-chlorination as a strategy to reduce NDMA formation with ozone, and 3) evaluate the cost and efficiency of different water reuse treatment scenarios, with and without ozone, for NDMA removal. This NSF EAPSI award is funded in collaboration with the Australian Academy of Science.

水回用是指对废水进行深度处理，以实现有目的的再利用，例如灌溉或饮用水，通常与水资源短缺有关。一些水污染物是由于消毒而产生的。 N-亚硝基二甲胺 (NDMA) 是饮用水再利用作为饮用水时特别关注的污染物之一，因为它被认为是一种致癌物质或致癌剂。本研究将研究使用臭氧来减少水回用系统中 NDMA 的形成。澳大利亚在水回用项目方面处于领先地位，部分原因是其气候干旱和供水有限。这项研究将与博士合作进行。澳大利亚科廷大学的 Jeff Charrois 和 Cynthia Joll 是 NDMA 和水回用方面的著名专家。臭氧是一种有效的消毒处理方法，可非选择性破坏潜在有害的有机化合物，并去除味道、气味和颜色。然而，一些处理后的废水含有在处理过程中与臭氧反应直接形成 NDMA 的化合物。由于通过臭氧化形成 NDMA 的化合物或前体尚未完全确定，因此确定 NDMA 形成潜力的唯一方法是通过直接测试。目前，澳大利亚水回用项目不使用臭氧作为处理步骤。本研究的目的是 1) 确定澳大利亚废水与臭氧直接形成 NDMA 的潜力，2) 研究预氯化作为减少臭氧形成 NDMA 的策略，以及 3) 评估不同水回用处理方案（使用或不使用臭氧）去除 NDMA 的成本和效率。该 NSF EAPSI 奖项是与澳大利亚科学院合作资助的。