Optical Monitoring of Hazardous Waste Combustion

研究了共振增强多波长荧光光谱的灵敏度和选择性， 光子电离（REMPI）光谱，用于检测各种 氯乙烯在氦浴中的反应已经在 以前的赠款。 将继续进行研究，以确定 气体样品的技术限制 代表性的废气产物。 REMPI还将用于 测量氯化火焰自由基作为一种手段， 产生有毒物质的合理化学机制 氯化碳氢化合物。 这些数据，加上 检测灵敏度研究，将有助于选择 连续焚烧炉的适当燃烧代用品 监测. 发展安全焚烧的核心问题是： 废物和有害有机材料的控制 有害的氯化碳氢化合物的排放。 研究 提出了提高我们测量痕量的能力， 浓度的各种CHCs，这攻击的问题， 两级：提供高灵敏度连续烟道气 监测器和复杂的分析技术， 火焰自由基的实验室测量 解开有毒CHC物种的形成机制。

The sensitivity and selectivity of resonance-enhanced multi- photon ionization (REMPI) spectroscopy for detecting various chloro-ethylenes in a helium bath has been demonstrated in a previous grant. Research is to be continued to determine the limits of the technique for gas samples containing more representative exhaust products. REMPI will also be used to measure chlorinated flame radicals as a means to develop plausible chemical mechanisms for the production of toxic chlorinated hydrocarbons. This data, coupled with the detection sensitivity studies, will assist in the selection of appropriate combustion surrogates for continuous incinerator monitoring. An issue central to the development of safe incineration of waste and hazardous organic materials is the control of emissions of undesirable chlorinated hydrocarbons. Research is proposed to improve our ability to measure trace concentration of various CHCs, which attacks the problem at two levels: providing high sensitivity continuous stack gas monitors, and sophisticated analytical techniques for laboratory measurement of flame radicals critical to unraveling toxic CHC species formation mechanisms.