Enhanced Fine Particle and Mercury Emission Control Using the Indigo Agglomerator
Fine particles are a major health issue as they remain suspended in the atmosphere for extended periods, are able to penetrate deep into the human lung and contain significant concentrations of heavy metals, such as Arsenic. They are also a significant component of the smog that limits the visibility in many cities and even in some national parks plus scientists believe they have an effect on global weather patterns. The Indigo Agglomerator enhances fine particle collection by attaching the fine particles to the larger particles. These large agglomerated particles are easily collected in existing control devices, such as Electrostatic Precipitator (ESP), fabric filters, scrubbers and cyclones. This paper concentrated on PM2.5 particles, that is particles less than 2.5 μm in diameter, including data that was collected on particles down to 50 nm in diameter. It was found that the reduction in fine particle emission from an Electrostatic Precipitator provided by installing an Indigo Agglomerator increases with reducing particle size from a factor of 5 at 2 μm to a factor of 10 at 100 nm. Reductions of this magnitude will have a significant effect on the impact of fine particles on both visibility and health. It will also result in a reduction in heavy metal emissions.Recent regulations in the US require Mercury emission control on coal fired power stations. Mercury is considered a major health hazard because it concentrates in the food chain and, in particular, may result in very high concentrations in some fish. The Indigo Agglomerator enhances Mercury collection by increasing the interaction between the Mercury, in the form of elemental or ionic molecules contained in the gas stream, and the adsorbent, either injected Activated Carbon or using the LOI from the combustion process. Initial tests have shown a factor of four enhancement of the Mercury removal when an Indigo Agglomerator is installed in front of an Electrostatic Precipitator. This is in compliance with the long term EPA requirements in the US.
Agglomerator PM2.5 Mercury Indigo
Rodney Truce Luke Wilkinson
Indigo Technologies LLC,Suite 205 Perry Highway,Pittsburgh PA USA Indigo Technologies P/L,Unit 13/43 Lang Parade,Milton QLD Australia
国际会议
11th International Conference on Electrostatic Precipitation(第11届国际电除尘学术会议)
杭州
英文
206-214
2008-10-15(万方平台首次上网日期,不代表论文的发表时间)