3. Post-combustion Technology is developing a system to trap pollutants. And dust from the combustion process. Before releasing the gas into the chimney to vent to the atmosphere without pollution. Capture technology Sulfur dioxide Out of gas formed by combustion or from Flue Gas production from the formation. Before being released into the atmosphere This process is known as Flue Gas Desulfurization. By reaction between water with lime or limestone Flue Gas in the form of spray or injection into the fluid. Such reactions are the sulfate or sulfite is more solid Synthetic Gypsum can be used as filling or gypsum. This method can reduce the sulfur is 80-90%, but can not reduce the amount of nitrogen oxide. You need a system to eliminate waste caused by Scrubber.