Using wet FGD systems to absorb mercury

For the past 12 years, The Babcock & Wilcox Company has been striving to develop mercury-reduction techniques that utilize - whenever possible - existing plant pollution control devices. This article discusses one such technique, which has demoostrated the potential for removing more than 95% of oxidized mercury in a wet flue gas desulfurization system at at a low incremental cost and with little or no impact on the system's operation or SO2 removal performance.