抄録
In this study, emission sampling and analysis of mercury at inlet and outlet air pollution control devices(APCDs) or bag filter(BF) have been conducted to provide information on the speciation(Hgp,Hg0, Hg2+), removal efficiency and mass distribution in waste combustion processes. Five municipal waste incinerators (MWIs) two industrial waste incinerators (IWIs) each with dry and wet types of APCDs(or BF), and cement kiln were selected to measure mercury concentrations. Speciation whether mercury forms are Hg0, Hg2+, was studied by employing Ontario Hydro method. The results of Hg speciation for MWIs, IWIs and cement kilns were observed the opposite tendency and depended on dry types (BF, SCR) and wet types (wet scrubber, paked tower) of APCDs, flue gas temperature and composition.
