Contaminants in Drinking Water: Halogenation of Model Compounds of Humic Acid in Methanol

饮用水中的污染物：腐殖酸模型化合物在甲醇中的卤化

• 批准号: 9528446
• 负责人: Victor Heasley
• 金额: $ 9.87万
• 依托单位: Point Loma Nazarene College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-03-01 至 1999-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9528446&HistoricalAwards=false
• 关键词: Contaminants; Drinking; Water; Halogenation; Model

With funding from the Organic Dynamics Program, Professor Heasley at Point Loma Nazarene College will investigate the mechanisms associated with the halogenation of humic acids. In this study, various phenols will be used as models for humic acids. Phenolic residues are known to be building blocks of humic acids. This problem presents itself because it is common practice to purify drinking water supplies by halogenation. With regard to humic acids, which are present in nearly all water supplies, halogenation yields toxic products rather than the desired non-toxic products. This research is intended to elaborate the mechanisms of this process so as to facilitate methodologies to counter the undesirable reaction. All to often procedures implemented to take care of one problem create problems in another sector which compromise the entire methodology. In this case, drinking water is purified with the oxidant, halogen. While this is effective for destroying many toxic contaminants, it converts other substances such as humic acids to toxins. In this research, the undesired reaction will be investigated with the goal of averting the toxic product formation during the drinking water purification procedure. This investigation has potential significant impact on an environmentally sensitive health issue.

在有机动力学项目的资助下，Point Loma拿撒勒学院的Heasley教授将研究腐植酸卤化的相关机制。在本研究中，各种酚类物质将被用作腐植酸的模型。酚醛残基被认为是腐植酸的组成部分。这一问题的出现是因为通常采用卤化法来净化饮用水。关于几乎存在于所有水源中的腐植酸，卤化产生的是有毒产物，而不是期望的无毒产物。本研究旨在阐述这一过程的机制，以促进对抗不良反应的方法。为了解决一个问题而实施的所有程序往往会在另一个部门产生问题，从而损害整个方法。在这种情况下，饮用水是用氧化剂卤素净化的。虽然这对破坏许多有毒污染物是有效的，但它会将腐植酸等其他物质转化为毒素。在本研究中，将调查不希望的反应，以避免在饮用水净化过程中有毒产物的形成。这项调查对环境敏感的健康问题具有潜在的重大影响。