Tall Stacks Versus Scrubbers: $3.5-Million Publicity Campaign Fails to Discredit Emission Reduction Technology
The latest skirmish in the battle for clean air centers around a recently developed device known as the flue gas desulphurization system or "stack gas scrubber." This emission control device utilizes a process by which flue gases are passed through a water suspension, or slurry, of lime or limestone that chemically removes the toxic sulphur oxides from the smoke before it is released into the atmosphere.