I-Corps: Water treatment technology to remove arsenic from contaminated groundwater

I-Corps：从受污染的地下水中去除砷的水处理技术

• 批准号: 2229825
• 负责人: Ashok Gadgil
• 金额: $ 5万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-01 至 2024-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2229825&HistoricalAwards=false
• 关键词: Corps; Water; treatment; technology; remove

The broader impact/commercial potential of this I-Corps project is the potential development of a water treatment technology that may produce arsenic-free drinking water for small, low-income rural communities. About 200 million individuals are exposed to high levels of arsenic through their drinking water. Arsenic is a naturally occurring groundwater contaminant and causes the most excess cancers of any regulated carcinogenic water contaminant at its permitted level. The proposed technology may benefit small communities with a water quality problem that up until now may have been too expensive to address at small scale. Although other arsenic-removal technologies exist, their unit costs rise rapidly at small scale, leaving many communities potentially unable to afford operation and maintenance of such plants once they have been built. In addition, the proposed technology also may help alleviate the burden placed on health care systems for costs associated with arsenic-related cancers, which ranges between $75,000 to $150,000 per person in the United States. This I-Corps project is based on the development of technology for remediation of arsenic contamination of water. This proposed electrochemical technology removes arsenic by releasing in the water iron rust that first binds to arsenic and is subsequently removed through filtration or settling. The proposed technology may remove high concentrations of arsenic from groundwater down to levels consistently below the EPA-approved maximum level of 10 ppb. The advantages of the proposed technology over current arsenic removal technologies include possible better efficacy of arsenic removal, potentially lower capital and operating and maintenance costs, requires less labor, and could eliminate the production of any liquid waste stream.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该I-Corps项目的更广泛的影响/商业潜力是水处理技术的潜在开发，该技术可能会为小型低收入农村社区提供无砷饮用水。大约有2亿个人通过饮用水暴露于高水平的砷。砷是一种天然存在的地下水污染物，在其允许水平上引起任何受调节的致癌水污染物中多余的癌症。拟议的技术可能会使小社区受益于水质问题，到目前为止，这可能太昂贵了，无法在小规模上解决。尽管存在其他砷驱动技术，但其单位成本在小规模上迅速上升，一旦建造了这些植物，许多社区可能无法负担运营和维护。此外，拟议的技术还可以帮助减轻与砷有关的癌症相关的卫生保健系统负担，在美国，每人在75,000至150,000美元之间。这个I-Corps项目基于用于修复砷污染水的技术。这项拟议的电化学技术通过在水铁生锈中释放首先与砷结合，随后通过过滤或沉淀去除。所提出的技术可能会从地下水中去除高浓度的砷，始终低于EPA批准的最大水平为10 ppb。拟议技术比当前的砷清除技术的优势包括砷清除的更好功效，潜在的降低资本和运营和维护成本，需要更少的劳动力，并且可以消除任何液体废物流的生产。这一奖项反映了NSF的立法任务，并认为通过基金会的知识和广泛的评估，它值得通过评估来进行评估。