Engineering and Chemistry of Sustainable Polyethylene Water Infrastructure

可持续聚乙烯水基础设施的工程和化学

• 批准号: 0755342
• 负责人: Andrea Dietrich
• 金额: $ 31.59万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-05-01 至 2012-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0755342&HistoricalAwards=false
• 关键词: Engineering; Chemistry; Sustainable; Polyethylene; Water

0755342DietrichOur nation is in need of sustainable potable water infrastructure because of the looming $183 billion of distribution water infrastructure that must be replaced in the U.S. during the next two decades. Recently approved standards for polyethylene materials in potable water public infrastructure indicate that polyethylene pipes are increasingly being installed for water distribution and plumbing worldwide, although the agents and mechanisms responsible for their physical failure caused by long-term chlorinated water exposure are unknown. Further, contaminant interaction of aged polyethylene has received little scrutiny. Under this award, an interdisciplinary research team will integrate chemistry and engineering to examine the mechanisms that control new and aged high-density polyethylene (HDPE) resin and HDPE water pipe degradation as well as aged polyethylene contaminant interaction. An outreach component will integrate teaching of radical chemistry and polyethylene infrastructure engineering to middle school students through a summer camp at the Science Museum of Southwest Virginia and to high school students in the Montgomery County, VA Public School System.

0755342DietrichOur国家需要可持续的饮用水基础设施，因为美国在未来20年内必须更换价值1830亿美元的供水基础设施。最近批准的饮用水公共基础设施中聚乙烯材料的标准表明，世界范围内越来越多地安装聚乙烯管道用于配水和管道，尽管长期接触氯化水导致其物理失效的物质和机制尚不清楚。此外，老化聚乙烯的污染物相互作用很少受到审查。根据该奖项，一个跨学科研究团队将整合化学和工程，研究控制新和老化高密度聚乙烯（HDPE）树脂和HDPE水管降解以及老化聚乙烯污染物相互作用的机制。一个扩展部分将通过在维吉尼亚西南科学博物馆举办的夏令营，将激进化学和聚乙烯基础设施工程的教学整合到中学生和维吉尼亚州蒙哥马利县公立学校系统的高中生中。