Targeted Lead (Pb) Removal for Drinking Water Purification Using INCION®

使用 INCION® 有针对性地去除饮用水净化中的铅 (Pb)

• 批准号: 10085528
• 负责人: Lindsay Boehme
• 金额: $ 54.75万
• 依托单位: POWERTECH WATER, INC.
• 依托单位国家: 美国
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-15 至 2021-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10085528
• 关键词: Targeted; Lead; Pb; Removal; Drinking

PROJECT SUMMARY Lead contamination in drinking water is a pervasive health problem across the US. Children are especially vulnerable to lead poisoning, which can have permanent detrimental effects on brain development. Despite corrosion prevention measures taken by public water authorities, lead concentrations in drinking water are routinely elevated nationwide. The Environmental Protection Agency (EPA) established The Lead and Copper Rule in 1991 to limit exposure of these elements and set the action level to 15 ppb; however, there is no safe level of lead consumption. The crisis observed in Flint, Michigan in 2014 put lead exposure into the public spotlight increasing consumer awareness. Lead filters currently on the market lack specificity with limited device lifetime dictated by the total amount of water volume filtered, regardless of lead concentration. PowerTech Water's (PTW) INCION® M-Series technology platform is a multifunctional chemical/electrochemical approach with ≥ 90% specificity for lead removal termed “capacitive coagulation”; a hybrid of adsorption (capacitive) and immobilization (coagulation) mechanisms that permanently remove all forms of dissolved lead, both complexed and free ions. In this Phase II project, PTW's goal is to understand how to develop and validate a 2nd generation INCION® M-series POU/POE system for dissolved lead removal from drinking water that exceeds the performance of current off-the-shelf solutions. The device will be reliable and specific for lead, have a multi-year system lifetime, and will not be consumed by abundant water constituents. These performance targets will be achieved through the following Specific Aims: 1. Factorial design of experiments testing to meet certification. Expected outcome: INCION® M- Series performance to meet NSF certification standards NSF/ANSI 53 and 61. 2. Investigate electrochemical coagulation mechanisms to tune operating parameters for specific water chemistries. Expected outcomes: Determine the operating parameters that will best exploit capacitive coagulation for lead removal in different water sources and develop an operating matrix. 3. Parametric testing of system operations towards the design of a POU/POE device. Expected outcome: A set of design specifications to develop the INCION® device into a commercial product.

项目摘要 饮用水中的铅污染是美国普遍存在的健康问题。孩子是 特别容易受到铅中毒的影响，这可能会对大脑产生永久性的探测器影响 发展。尽管公共供水当局采取了预防腐蚀措施，但 饮用水的浓度通常在全国范围内升高。环境 保护局（EPA）于1991年建立了铅和铜规则，以限制暴露 这些元素并将动作水平设置为15 ppb；但是，没有安全的领先水平 消耗。 2014年在密歇根州弗林特（Flint）观察到的危机将潜在客户暴露于公众 聚光灯提高消费者的意识。 目前市场上的铅过滤器缺乏特异性，设备寿命有限。 无论铅浓度如何，都过滤的水量总量。 Powertech水 （PTW）Intion®M系列技术平台是一种多功能化学/电化学 铅去除铅的特异性≥90％，称为“电容凝结”；杂种 永久去除的吸附（电容）和固定（凝结）机制 各种形式的溶解铅，既复合和自由离子。 在此II阶段项目中，PTW的目标是了解如何开发和验证第二个 Intion®M系列POU/POE系统，用于从饮用水中拆除铅的铅 这超出了当前现成解决方案的性能。该设备将是可靠的，并且 特定于铅，拥有多年的系统寿命，并且不会被大量水消耗 构成。这些绩效目标将通过以下特定目标实现： 1。实验测试的阶乘设计以符合认证。预期结果：Intion®M- 符合NSF认证标准NSF/ANSI 53和61的系列性能。 2。研究电化学凝血机制以调整工作参数 特定的水化学。预期结果：确定操作参数 将最好地利用电容凝血来清除不同的水源和 开发一个操作矩阵。 3。系统操作针对POU/POE设备设计的参数测试。 预期结果：一组设计规格，将Intion®设备开发到一个 商业产品。