Targeted Design of Biomaterials for Water Treatment: Arsenic Removal and Recovery

水处理生物材料的针对性设计：砷的去除和回收

• 批准号: 0932060
• 负责人: Julie Zimmerman
• 金额: $ 32.45万
• 依托单位: Yale University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-11-01 至 2013-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0932060&HistoricalAwards=false
• 关键词: Targeted; Design; Biomaterials; Water; Treatment

0932060ZimmermanThe objective of this study is to design and develop bio-based hydrogels aligned with the goals of green engineering for arsenic removal from aqueous solutions. A sub-objective is to evaluate the potential for regeneration of these materials and any subsequent impact on performance to estimate functional lifetime. Additionally, end of life strategies will be evaluated, including biodegradation. To close the loop, a feasibility analysis will be conducted to evaluate the recovery of arsenic from the waste stream for use as a feedstock to industrial processes. By considering the entire life cycle of the system including the material itself and the waste streams from the process, the design of an arsenic removal system for water purification has an increased likelihood of optimizing performance of the entire system while aligning environmental and economic objectives. The study involves the functionalization of chitosan, a biopolymer, and its use in arsenic removal. This research presents potential benefits for improved health and quality of life for those whose groundwater source contains toxic arsenic levels. The team will work with the Yale Peabody Museum staff to develop an exhibit communicating global water issues, particularly as they relate to water quality and scarcity in developing communities. Also, the team will work with high school students in the Evolutions Program at Peabody to develop exhibits about global water issues, and additionally high school students will work in the team?s laboratories over summers. Undergraduate and graduate students will be actively engaged in the research throughout the year.

0932060齐默尔曼这项研究的目标是设计和开发符合绿色工程目标的生物基水凝胶，用于从水溶液中去除砷。一个子目标是评估这些材料的再生潜力和对性能的任何后续影响，以估计功能寿命。此外，还将评估包括生物降解在内的生命终结战略。为了结束这一循环，将进行可行性分析，以评估从废流中回收用作工业加工原料的砷。通过考虑系统的整个生命周期，包括材料本身和工艺产生的废水，净水除砷系统的设计增加了优化整个系统性能的可能性，同时使环境和经济目标保持一致。本研究涉及生物大分子壳聚糖的功能化及其在除砷中的应用。这项研究提出了改善那些地下水来源含有有毒砷水平的人的健康和生活质量的潜在好处。该团队将与耶鲁皮博迪博物馆的工作人员合作，开发一个展览，交流全球水问题，特别是与发展中社区的水质和稀缺性有关的问题。此外，该团队将与皮博迪进化项目的高中生合作，开发关于全球水问题的展览，此外，高中生将在暑假在S团队的实验室工作。本科生和研究生全年都将积极参与研究。