seawater flue gas desulfurization
It is a cutting-edge technology to reduce sulfur dioxide emissions from fossil fuel combustion in power plants. In this process, flue gases are captured, so sulphur dioxide and other pollutants disappear before they leave the picture. Its technological features are: using seawater as absorbent; neutralizing sulfur dioxide to produce harmless sulphate salts. The system typically involves a gas-liquid contact tower where flue gases are sprayed with seawater and pass through a stream of bubbles, exposing them to the pollutants. With FGD seawater applications being not uncommon at coastal power plants, a sulfur emission control solution has already been found which has some kind of green credentials. The process does not just help in obeying existing environmental regulations but also contributes to reducing acid rain and improving air quality overall.