Adsorption Of Metals In Flu-gas Desulfurization Wastewater By Iron-impergnated Activated Carbon
Abstract
The combustion of coal releases flue gases into the atmosphere. The flue gas has very high concentrations of Sox. Flue gas desulfurization technologies are installed in almost all the coal fired power plants to treat the flue gas and to reduce the sulfur dioxide emissions. Sulfur dioxide emissions cause serious impacts on environment and also the human health. Studies on the FGD technologies reveal that, wet FGD technology is used more extensively to treat the Flue gas, as it cost efficient and also the reduction efficiencies are very high. Despite the treatment process available for treating the FGD wastewater, achieving the effluent limitations by these processes is very tedious and also very expensive. In this study, GAC impregnated with iron and GAC impregnated with zero valent iron have been used to treat the FGD wastewater. The application of GAC/FeOx and GAC/ZVI for treatment of FGD wastewater is a new approach. Adsorption batch experiments are conducted and adsorption kinetics for various metal components is observed. This research paves way for further understanding of the FGD wastewater and its Treatment process