emission control

No single technology will work for every coal-fired power plant. The mercury control options under investigation can be classified into six broad categories:

• Sorbent injection involves injecting a material, usually in powdered form, that adsorbs mercury upstream of a particulate collector such as a baghouse or electrostatic precipitator (ESP). Activated carbon injection currently represents one of the most promising controls on the horizon. It is the only technology that is close to being commercialized.