Evaluation of Microflocculation Due to Prezonation

预分区引起的微絮凝的评价

• 批准号: 8614580
• 负责人: Anthony Collins
• 金额: $ 17.76万
• 依托单位: Clarkson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-02-01 至 1989-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8614580&HistoricalAwards=false
• 关键词: Evaluation; Microflocculation; Due; Prezonation

This award is for funds to support research on the investigation of a mechanistic basis and to develop a model for the microflocculation observed with the application of ozone as a preoxidant in water treatment practice. The research will address microflocculation due to preozonation highly on colored, low alkalinity, low turbidity source waters. The influence of four mechanisms will be investigated. These are (a) rearrangement of humic material particle size distributions leading to more efficient coagulation and flocculation, (b) recombination of humic ozonization degradation products via hydrogen bonding, (c) oxidation and separation of metals complexed with humic material and their subsequent action as coagulants, and (d) combination of dissolved bulk solution metals with complexed metals to act as coagulants or even to precipitate. The principal investigator is highly qualified to perform the proposed research. A two year continuing grant is recommended. This award is for $76,100 for the first year.

这一奖项是为了支持对机理基础的研究，并开发在水处理实践中应用臭氧作为预氧化剂观察到的微絮凝模型。本研究将针对有色、低碱度、低浊度的水源水进行高度预臭氧氧化产生的微絮凝作用。将研究四种机制的影响。它们是：(A)腐殖质粒度分布的重新排列导致更有效的混凝和絮凝；(B)腐殖质臭氧化降解产物通过氢键复合；(C)与腐殖质络合的金属的氧化和分离及其随后作为混凝剂的作用；以及(D)溶解的大量溶液金属与络合金属的结合以作为混凝剂或甚至沉淀。首席调查员非常有资格执行拟议的研究。建议提供为期两年的持续资助。这个奖是第一年的76,100美元。