Pollution introduces contaminants into an environment in predetermined or agreed-upon proportions or frame of reference. These contaminants cause instability, disorder, harm, or discomfort to physical systems and/or living organisms. The flue gas produced by power plant boilers contains waste gases and particulates. If flue gas is released without being treated, these waste gases and particulates could pollute the environment.

The Flue Gas Desulfurization System describes the design and function of control systems that remove sulfur oxides and particulates from flue gas. It also outlines recovery systems that concentrate the sulfur oxides present in the flue gas and convert them into usable by-products.

This online training course identifies the wastes contained in flue case. It covers scrubber basics, including components and operation of wet and dry scrubbers. This course is part of the Fundamental Aspects of Emission Controls training series.