On-Line Control of Particulate and Volatile Air Toxic Emmissions from Thermal Treatment Systems

这个小型企业创新研究第一阶段项目将开发基于在线FT-IR诊断和改进的燃烧模型的排放控制策略。目前正在出现许多改进危险废物焚烧的技术，包括湍流喷雾火焰、喷动床或沸腾床燃烧器、倾倒燃烧器或回转窑，以及更多创新技术，如等离子炬、循环燃烧床和太阳能辅助焚烧。对于根据RCRA被认为是危险的废物，焚烧需要99.99%的DRE。多氯联苯(多氯联苯)的销毁也包括在TSCA中，需要99.9999%的DREs。对卤化废物进行热处理可能导致产生比初级废物更有毒的二次废物，这一事实可能加剧热销毁系统对环境的影响。为了适当地控制热处理系统的破坏效率，防止潜在的环境污染，需要仪器来提供对颗粒物和挥发性空气有毒物质的实时控制。目前的分析方法依赖于实验室程序，可能需要长达两个月的时间才能得出结果，不能为控制或环境保护提供任何反馈。由此产生的控制系统将能够确保符合规定的DRE并保护环境健康。

This Small Business Innovation Research Phase I project will develop emission control strategies based on on-line FT-IR diagnostics and improved combustion modeling. Many technologies are emerging for improved incineration of hazardous wastes including turbulent spray flames, spouted bed or fluidized bed combustors, dump combustors or rotary kilns, and more innovative technologies such as plasma torch, circulating combustion bed, and solar assisted incineration. For wastes considered hazardous under RCRA, 99.99% DREs are required for incineration. Destruction of polychlorinated biphenyls (PCBs) are also covered under the TSCA, requiring 99.9999% DREs. The environmental impact of thermal destruction systems can be compounded by the fact that thermal treatment of halogenated wastes may result in the production of secondary wastes more toxic than the primary waste. In order to properly control the destruction efficiency of thermal treatment systems and prevent potential environmental contamination, instrumentation is needed to provide real-time control of particulate and volatile air toxics. Current analysis methods rely on laboratory procedures which may take up to two months for results, not providing any feedback for control or environmental protection. The resulting control system will be capable of ensuring that regulated DREs are met and environmental health is protected.