Developing a passive fluoride removal system for wastewaters and hydrogen reactivity in palladized mesoporous materials added to zero-valent iron

开发一种被动除氟系统，用于废水和添加到零价铁的镀钯介孔材料中的氢反应性

• 批准号: 9170-2008
• 负责人: Reardon, Eric
• 金额: $ 2.62万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=474510
• 关键词: Developing; passive; fluoride; removal; system

The proposed research is two-fold. One project is focused on developing a passive water treatment reactor to reduce fluoride concentrations from industrial wastewater levels to drinking water standards. Our previous work developed a reactor that reduced fluoride in water from hundreds of mg/l to approximately 4 mg/l, but water of this concentration is still too high to avert the development of fluorosis in humans if ingested for long periods. Published data exists to show that low concentrations of citrate ion facilitate the sequestration of fluoride in calcite. Our research will integrate citrate's ability to remove fluoride with our previous reactor design. The objective is to develop a reliable and passive technique to reduce the fluoride concentration of any wastewater to drinking water standards (World Health Organization recommends < 1.5 mg/l).

这项拟议的研究包括两个方面。其中一个项目的重点是开发被动式水处理反应堆，以将氟浓度从工业废水水平降低到饮用水标准。我们之前的工作开发了一个反应堆，可以将水中的氟从几百毫克/L降到大约4毫克/L，但这个浓度的水仍然太高，如果长期摄入，仍然不能避免人类氟中毒的发生。已发表的数据表明，低浓度的柠檬酸根离子有利于方解石中氟化物的隔离。我们的研究将把柠檬酸盐去除氟化物的能力与我们以前的反应堆设计结合起来。其目的是开发一种可靠的被动技术，将任何废水的氟化物浓度降低到饮用水标准(世界卫生组织建议为1.5毫克/L)。