Collaborative Research: High Temperature and Pressure Char Kinetics - Diagnostic development, Gasifier experiments, and Modeling

当前的水处理方法不能处理来自农业径流、挥发性有机化合物和药物残留的新污染威胁？因此需要先进的方法。在液态水中生产等离子体会产生大量高级氧化剂，这些氧化剂具有快速分解有机污染物的能力。这项计划研究了一种新的方法，即在浸入水中的气泡中产生等离子体，方法是在电场的作用下以共振的方式驱动气泡。本文研究了共振驱动气泡的点火物理特性，等离子体在气泡中形成的时间演化，以及分离等离子体气泡和液态水的活性界面层的化学性质。从这些研究中获得的理解将用于设计和建造用于水净化的等离子体反应器。作为这一努力的教育推广的一部分，将为来自底特律地区大学预科工程项目和由科学与工程女性赞助的项目的访问小学生提供实验室参观和演示，使用内部制造的等离子体演示实验。除了赞助一名来自“夏季研究机会计划”（SROP）的学生（该计划旨在鼓励代表性不足的学生进入研究生院），我们还将把等离子演示纳入由全国黑人工程师协会（National Society of Black Engineers）领导的现有教育推广工作中，该工作包括实际访问该地区的风险学校，以通过动手实验、迷你课程和指导来激励学生。

1336364/1336643Rieker/PorterCurrent water treatment methodologies are not designed to handle emerging contamination threats derived from agricultural run-off, volatile organic compounds, and pharmaceutical residues?advanced methods are therefore needed. Plasma production in liquid water produces a host of advanced oxidation agents that have the capacity to rapidly decompose organic contaminants. The proposed effort investigates a novel method of producing plasma in bubbles immersed in water by driving them at resonance in the presence of an electric field. This effort studies the ignition physics of resonantly driven bubbles, the time evolution of plasma formation in such bubbles, and the chemistry of the active interfacial layer separating the plasma bubble and the liquid water. The understanding gained from these studies will be used to design and build a plasma reactor for the purpose of water purification. As part of the educational outreach thrust of this effort, lab tours and demonstrations will be given to visiting grade school students from programs such as the Detroit Area Pre-College Engineering Program and those sponsored by Women in Science and Engineering, using in-house fabricated plasma demonstration experiments. In addition to sponsoring a student from the Summer Research Opportunity Program (SROP), a program aimed at encouraging underrepresented students to attend graduate school, we will also integrate plasma demonstrations into the existing educational outreach effort led by the National Society of Black Engineers, which involves actually visiting at risk schools in the area for the purpose of inspiring students with hands on experiments, mini-lessons, and mentorship.