What is the environmental purpose of removing fly ash from flue gas?

The primary environmental purpose of removing fly ash from flue gas is to prevent pollution before the gas exits the stack. Fly ash is a byproduct produced during the combustion of coal in power plants and can contain harmful substances such as heavy metals and particulate matter. If not properly managed, these pollutants can be released into the atmosphere, contributing to air pollution and posing health risks to humans and the environment.

By implementing effective fly ash removal systems, such as electrostatic precipitators or baghouse filters, power plants significantly reduce the amount of particulate matter and other pollutants emitted. This process is essential for meeting regulatory requirements and promoting air quality standards, ultimately safeguarding public health and the environment.

While improving combustion efficiency, recycling ash, and enhancing the quality of bottom ash may be considerations in the overall operation of a power plant, they are not the primary reason for the removal of fly ash regarding environmental protection. The focus here is specifically on minimizing emissions to protect the environment and comply with emissions regulations.